ISL84762IR [RENESAS]

DUAL 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, PDSO10, 3 X 3 MM, PLASTIC, MO-229WEED-3, TDFN-10;
ISL84762IR
型号: ISL84762IR
厂家: RENESAS TECHNOLOGY CORP    RENESAS TECHNOLOGY CORP
描述:

DUAL 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, PDSO10, 3 X 3 MM, PLASTIC, MO-229WEED-3, TDFN-10

光电二极管 输出元件
文件: 总12页 (文件大小:609K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
SIGNS  
PART  
DED FOR NEW DE  
D REPLACEMENT  
ISL84714  
NOT RECOMMEN  
RECOMMENDE  
DATASHEET  
ISL84762  
FN6105  
Rev 1.00  
September 15, 2008  
Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch  
The Intersil ISL84762 device is a low ON-resistance, low  
voltage, bidirectional, dual single-pole/double-throw (SPDT)  
analog switch designed to operate from a single +1.65V to  
+3.6V supply. Targeted applications include battery powered  
Features  
• Pb-Free Available (RoHS Compliant)  
• Pin Compatible Replacement for the MAX4762  
equipment that benefits from low r  
(0.35 and fast  
= 6ns). The digital logic  
ON  
• ON-Resistance (r  
)
ON  
switching speeds (t  
ON  
= 14ns, t  
OFF  
- V+ = +2.7V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.39  
- V+ = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.55  
input is 1.8V logic-compatible when using a single +3V supply.  
Cell phones, for example, often face ASIC functionality  
limitations. The number of analog input or GPIO pins may be  
limited and digital geometries are not well suited to analog  
switch performance. This part may be used to “mux-in”  
additional functionality while reducing ASIC design risk. The  
ISL84762 is offered in small form factor packages, alleviating  
board space limitations.  
• r  
• r  
Matching Between Channels . . . . . . . . . . . . . . . . 0.05  
Flatness Across Signal Range . . . . . . . . . . . . . . 0.043  
ON  
ON  
• Single Supply Operation. . . . . . . . . . . . . . . . +1.65V to +3.6V  
• Low Power Consumption (P ). . . . . . . . . . . . . . . . . <0.02µW  
D
• Fast Switching Action (V+ = +2.7V)  
- t  
- t  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14ns  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6ns  
The ISL84762 is a committed dual single-pole/double-throw  
(SPDT) that consist of two normally open (NO) and two  
normally (NC) switches. This configuration can be used as a  
dual 2-to-1 multiplexer. The ISL84762 is pin compatible with  
the MAX4762.  
ON  
OFF  
• ESD HBM Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >9kV  
• Guaranteed Break-before-Make  
• 1.8V Logic Compatible (+3V supply)  
TABLE 1. FEATURES AT A GLANCE  
ISL84762  
• Available in 10 Ld 3x3 Thin DFN and 10 Ld MSOP  
Number of Switches  
SW  
2
SPDT or 2-to-1 MUX  
0.35  
Applications  
• Battery-powered, Handheld, and Portable Equipment  
- Cellular/mobile Phones  
3V r  
ON  
- Pagers  
3V t /t  
12ns/5ns  
ON OFF  
1.8V r  
- Laptops, Notebooks, Palmtops  
0.55  
ON  
1.8V t /t  
• Portable Test and Measurement  
• Medical Equipment  
20ns/8ns  
ON OFF  
Packages  
10 Ld 3x3 TDFN, 10 Ld MSOP  
• Audio and Video Switching  
Related Literature  
Technical Brief TB363 “Guidelines for Handling and  
Processing Moisture Sensitive Surface Mount Devices  
(SMDs)”  
• Application Note AN557 “Recommended Test Procedures  
for Analog Switches”  
FN6105 Rev 1.00  
Page 1 of 12  
September 15, 2008  
ISL84762  
Ordering Information  
Pinout (Note 1)  
ISL84762  
(10 LD TDFN, MSOP)  
TOP VIEW  
TEMP.  
RANGE  
(°C)  
PART  
NUMBER  
PART  
MARKING  
PKG.  
DWG. #  
PACKAGE  
ISL84762IR  
762  
-40 to +85 10 Ld 3x3 TDFN L10.3x3A  
V+  
1
2
3
4
5
10 NO2  
ISL84762IR-T* 762  
-40 to +85 10 Ld 3x3 TDFN L10.3x3A  
Tape and Reel  
9
8
7
6
NO1  
COM1  
NC1  
COM2  
NC2  
ISL84762IU  
4762  
-40 to +85 10 Ld MSOP  
M10.118  
M10.118  
IN2  
ISL84762IU-T* 4762  
-40 to +85 10 Ld MSOP  
Tape and Reel  
IN1  
GND  
ISL84762IRZ  
(Note)  
762Z  
-40 to +85 10 Ld 3x3 TDFN L10.3x3A  
(Pb-free)  
NOTE:  
ISL84762IRZ-T* 762Z  
(Note)  
-40 to +85 10 Ld 3x3 TDFN L10.3x3A  
Tape and Reel  
1. Switches Shown for Logic “0” Input.  
(Pb-free)  
ISL84762IUZ  
(Note)  
4762Z  
-40 to +85 10 Ld MSOP  
(Pb-free)  
M10.118  
M10.118  
Truth Table  
LOGIC  
NC1, NC2  
ON  
NO1, NO2  
ISL84762IUZ-T* 4762Z  
(Note)  
-40 to +85 10 Ld MSOP  
Tape and Reel  
(Pb-free)  
0
1
OFF  
ON  
OFF  
*Please refer to TB347 for details on reel specifications.  
NOTE: Logic “0” 0.5V. Logic “1” 1.4V with a 3V supply.  
NOTE: These Intersil Pb-free plastic packaged products employ  
special Pb-free material sets, molding compounds/die attach  
materials, and 100% matte tin plate plus anneal (e3 termination  
finish, which is RoHS compliant and compatible with both SnPb and  
Pb-free soldering operations). Intersil Pb-free products are MSL  
classified at Pb-free peak reflow temperatures that meet or exceed  
the Pb-free requirements of IPC/JEDEC J STD-020.  
Pin Descriptions  
PIN  
FUNCTION  
System Power Supply Input (+1.65V to +3.6V)  
Ground Connection  
V+  
GND  
IN  
Digital Control Input  
COM  
NO  
Analog Switch Common Pin  
Analog Switch Normally Open Pin  
Analog Switch Normally Closed Pin  
NC  
FN6105 Rev 1.00  
Page 2 of 12  
September 15, 2008  
 
ISL84762  
Absolute Maximum Ratings  
Thermal Information  
V+ to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 4.7V  
Input Voltages  
NO, NC, IN (Note 2) . . . . . . . . . . . . . . . . . . . -0.3 to ((V+) + 0.3V)  
Output Voltages  
COM (Note 2). . . . . . . . . . . . . . . . . . . . . . . . -0.3 to ((V+) + 0.3V)  
Continuous Current NO, NC, or COM . . . . . . . . . . . . . . . . . ±300mA  
Peak Current NO, NC, or COM  
Thermal Resistance (Typical)  
(°C/W)  
(°C/W)  
JC  
JA  
10 Ld 3x3 TDFN Package (Note 3) . . .  
10 Ld MSOP Package (Note 4) . . . . . .  
Maximum Junction Temperature (Plastic Package). . . . . . . +150°C  
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to +150°C  
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below  
http://www.intersil.com/pbfree/Pb-FreeReflow.asp  
47  
162  
11  
N/A  
(Pulsed 1ms, 10% Duty Cycle, Max) . . . . . . . . . . . . . . . . ±500mA  
ESD Rating:  
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>9kV  
Machine Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>500V  
Charged Device Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>1kV  
Operating Conditions  
Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C  
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and  
result in failures not covered by warranty.  
NOTES:  
2. Signals on NC, NO, IN, or COM exceeding V+ or GND are clamped by internal diodes. Limit forward diode current to maximum current ratings.  
3. is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See  
JA  
Tech Brief TB379.  
4. For , the “case temp” location is the center of the exposed metal pad on the package underside.  
JC  
Electrical Specifications - 3V Supply Test Conditions: V+ = +2.7V to +3.3V, GND = 0V, V  
= 1.4V, V  
= 0.5V (Note 5)  
INL  
INH  
Unless Otherwise Specified.  
TEMP  
MIN  
MAX  
PARAMETER  
TEST CONDITIONS  
(°C) (Notes 6, 7) TYP (Notes 6, 7) UNITS  
ANALOG SWITCH CHARACTERISTICS  
Analog Signal Range, V  
ANALOG  
Full  
25  
0
-
-
V+  
0.6  
0.6  
0.2  
0.2  
0.1  
0.15  
2
V
ON-Resistance, r  
V+ = 2.7V, I  
COM  
(See Figure 5)  
= 100mA, V  
or V = 0V to V+  
NC  
0.39  
ON  
NO  
Full  
25  
-
-
r
Matching Between Channels,  
V+ = 2.7V, I  
COM  
= 100mA, V  
NO  
or V = Voltage at max  
NC  
-
0.05  
ON  
r  
r
(Note 10)  
ON  
ON  
Full  
25  
-
-
r
Flatness, R  
V+ = 2.7V, I  
(Note 8)  
= 100mA, V  
or V = 0V to V+  
NC  
-
0.043  
ON  
FLAT(ON)  
COM  
NO  
Full  
25  
-
-
-
-
-
-
NO or NC OFF Leakage Current,  
or I  
V+ = 3.3V, V  
= 0.3V, 3V, V  
NO  
or V  
NC  
= 3V, 0.3V  
-2  
-40  
-3  
-60  
nA  
nA  
nA  
nA  
COM  
I
NO(OFF)  
NC(OFF)  
Full  
25  
40  
COM ON Leakage Current,  
V= 3.3V, V  
= 0.3V, 3V, or V  
NO  
or V  
= 0.3V, 3V,  
3
COM  
NC  
I
or Floating  
COM(ON)  
Full  
60  
DYNAMIC CHARACTERISTICS  
Turn-ON Time, t  
V+ = 2.7V, V  
(See Figure 1, Note 9)  
or V  
= 1.5V, R = 50, C = 35pF  
25  
Full  
25  
-
-
14  
-
20  
25  
12  
17  
-
ns  
ns  
ns  
ns  
ns  
ON  
NO  
NC  
L
L
Turn-OFF Time, t  
V+ = 2.7V, V  
(See Figure 1, Note 9)  
or V  
= 1.5V, R = 50, C = 35pF  
-
6
-
OFF  
NO  
NC  
L
L
Full  
Full  
-
Break-Before-Make Time Delay, t  
V+ = 3.3V, V  
or V  
= 1.5V, R = 50, C = 35pF  
2
7
D
NO  
NC  
L
L
(See Figure 3, Note 9)  
Charge Injection, Q  
OFF-Isolation  
C
R
= 1.0nF, V = 0V, R = 0See Figure 2)  
25  
25  
-
-
95  
-
-
pC  
dB  
L
L
G
G
= 50, C = 5pF, f = 100kHz, V  
= 1V  
-68  
L
COM  
RMS  
(See Figure 4)  
Crosstalk (Channel-to-Channel)  
Total Harmonic Distortion  
R
= 50, C = 5pF, f = 100kHz, V  
= 1V  
25  
-
-95  
-
dB  
L
L
COM  
RMS  
(See Figure 6)  
f = 20Hz to 20kHz, V  
= 2V , R = 600  
P-P  
25  
25  
-
-
0.003  
115  
-
-
%
COM  
= V = 0V (See Figure 7)  
COM  
L
NO or NC OFF Capacitance, C  
f = 1MHz, V  
or V  
pF  
OFF  
NO  
NC  
FN6105 Rev 1.00  
Page 3 of 12  
September 15, 2008  
 
 
 
 
ISL84762  
Electrical Specifications - 3V Supply Test Conditions: V+ = +2.7V to +3.3V, GND = 0V, V  
Unless Otherwise Specified. (Continued)  
= 1.4V, V  
= 0.5V (Note 5)  
INL  
INH  
TEMP  
MIN  
MAX  
PARAMETER  
TEST CONDITIONS  
or V = V = 0V (See Figure 7)  
(°C) (Notes 6, 7) TYP (Notes 6, 7) UNITS  
COM ON Capacitance, C  
f = 1MHz, V  
25  
-
224  
-
pF  
COM(ON)  
NO  
NC  
COM  
POWER SUPPLY CHARACTERISTICS  
Power Supply Range  
Full  
25  
1.65  
-
-
-
3.6  
40  
V
Positive Supply Current, I+  
V+ = +3.6V, V = 0V or V+  
IN  
-
-
nA  
nA  
Full  
750  
DIGITAL INPUT CHARACTERISTICS  
Input Voltage Low, V  
Full  
Full  
Full  
-
-
-
-
0.5  
-
V
V
INL  
Input Voltage High, V  
1.4  
-0.5  
INH  
Input Current, I  
, I  
INH INL  
V+ = 3.3V, V = 0V or V+ (Note 9)  
IN  
0.5  
µA  
Electrical Specifications - 1.8V Supply Test Conditions: V+ = +1.65V to +2V, GND = 0V, V  
= 1.0V, V  
= 0.4V (Note 5),  
INL  
INH  
Unless Otherwise Specified.  
TEMP  
MIN  
MAX  
PARAMETER  
TEST CONDITIONS  
(°C) (Notes 6, 7) TYP (Notes 6, 7) UNITS  
ANALOG SWITCH CHARACTERISTICS  
Analog Signal Range, V  
ANALOG  
Full  
25  
0
-
-
V+  
V
ON-Resistance, r  
V+ = 1.8V, I  
COM  
(See Figure 5, Note 9)  
= 100mA, V  
or V = 0V to V+  
NC  
0.55  
0.6  
-
-
ON  
NO  
Full  
-
DYNAMIC CHARACTERISTICS  
Turn-ON Time, t  
V+ = 1.65V, V  
(See Figure 1, Note 9)  
or V  
= 1.0V, R =50, C = 35pF  
25  
Full  
25  
-
-
22  
-
28  
33  
15  
20  
-
ns  
ns  
ns  
ns  
ns  
ON  
NO  
NC  
L
L
Turn-OFF Time, t  
V+ = 1.65V, V  
(See Figure 1, Note 9)  
or V  
= 1.0V, R =50, C = 35pF  
-
9
-
OFF  
NO  
NC  
L
L
Full  
Full  
-
Break-Before-Make Time Delay, t  
V+ = 2.0V, V  
or V  
= 1.0V, R =50, C = 35pF,  
2
9
D
NO  
NC  
L
L
(See Figure 3, Note 9)  
Charge Injection, Q  
OFF-Isolation  
C
R
= 1.0nF, V = 0V, R = 0See Figure 2)  
25  
25  
-
-
49  
-
-
pC  
dB  
L
L
G
G
= 50, C = 5pF, f = 100kHz, V  
= 1V  
-68  
L
COM  
RMS  
(See Figure 4)  
Crosstalk (Channel-to-Channel)  
R
= 50, C = 5pF, f = 100kHz, V  
= 1V  
25  
-
-95  
-
dB  
L
L
COM  
RMS  
(See Figure 6)  
NO or NC OFF Capacitance, C  
f = 1MHz, V  
f = 1MHz, V  
or V  
or V  
= V  
= V  
= 0V (See Figure 7)  
= 0V (See Figure 7)  
25  
25  
-
-
115  
224  
-
-
pF  
pF  
OFF  
NO  
NO  
NC  
NC  
COM  
COM  
COM ON Capacitance, C  
COM(ON)  
DIGITAL INPUT CHARACTERISTICS  
Input Voltage Low, V  
Full  
Full  
Full  
-
-
-
-
0.4  
-
V
V
INL  
Input Voltage High, V  
1.0  
-0.5  
INH  
Input Current, I  
NOTES:  
, I  
INH INL  
V+ = 2.0V, V = 0V or V+ (Note 9)  
IN  
0.5  
µA  
5. V = input voltage to perform proper function.  
IN  
6. The algebraic convention, whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.  
7. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization  
and are not production tested.  
8. Flatness is defined as the difference between maximum and minimum value of ON-resistance over the specified analog signal range.  
9. Limits established by characterization and are not production tested.  
10. r  
ON  
matching between channels is calculated by subtracting the channel with the highest max r  
ON  
value from the channel with lowest max r  
ON  
value.  
FN6105 Rev 1.00  
Page 4 of 12  
September 15, 2008  
 
 
 
 
ISL84762  
Test Circuits and Waveforms  
V+  
C
V+  
t < 5ns  
r
t < 5ns  
f
LOGIC  
INPUT  
50%  
0V  
NO  
0V  
V
OUT  
t
NO OR NC  
IN  
OFF  
SWITCH  
INPUT  
COM  
SWITCH  
INPUT  
V
V
OUT  
90%  
90%  
C
L
35pF  
R
50  
LOGIC  
INPUT  
L
GND  
SWITCH  
OUTPUT  
t
ON  
Repeat test for all switches. C includes fixture and stray  
L
Logic input waveform is inverted for switches that have the opposite  
logic sense.  
capacitance.  
R
L
-----------------------  
V
= V  
OUT  
(NO or NC)  
R
+ r  
ON  
L
FIGURE 1A. MEASUREMENT POINTS  
FIGURE 1B. TEST CIRCUIT  
FIGURE 1. SWITCHING TIMES  
V+  
C
V
R
OUT  
G
COM  
NO OR NC  
GND  
SWITCH  
OUTPUT  
V  
OUT  
V
V
OUT  
IN  
G
C
L
V+  
0V  
ON  
ON  
LOGIC  
INPUT  
LOGIC  
INPUT  
OFF  
Q = V  
x C  
L
OUT  
Repeat test for all switches.  
FIGURE 2B. TEST CIRCUIT  
FIGURE 2A. MEASUREMENT POINTS  
FIGURE 2. CHARGE INJECTION  
V+  
C
V+  
0V  
NO  
LOGIC  
INPUT  
V
V
OUT  
NX  
COM  
NC  
C
R
L
L
50  
35pF  
IN  
GND  
90%  
LOGIC  
INPUT  
SWITCH  
OUTPUT  
V
OUT  
0V  
t
D
Repeat test for all switches. C includes fixture and stray  
L
capacitance.  
FIGURE 3A. MEASUREMENT POINTS  
FIGURE 3B. TEST CIRCUIT  
FIGURE 3. BREAK-BEFORE-MAKE TIME  
FN6105 Rev 1.00  
Page 5 of 12  
September 15, 2008  
ISL84762  
Test Circuits and Waveforms (Continued)  
V+  
C
V+  
C
SIGNAL  
GENERATOR  
r
= V /100mA  
1
NO OR NC  
ON  
NO OR NC  
V
NX  
IN  
0V OR V+  
0V OR V+  
100mA  
IN  
V
1
COM  
ANALYZER  
GND  
COM  
R
L
GND  
Signal direction through switch is reversed, worst case values  
are recorded. Repeat test for all switches.  
Repeat test for all switches.  
FIGURE 4. OFF-ISOLATION TEST CIRCUIT  
FIGURE 5. r  
TEST CIRCUIT  
ON  
V+  
C
V+  
C
SIGNAL  
GENERATOR  
NO OR NC  
50  
COM  
NO OR NC  
IN  
1
0V OR V+  
IN  
0V OR V+  
IMPEDANCE  
ANALYZER  
NC OR NO  
COM  
COM  
ANALYZER  
NC  
GND  
GND  
R
L
Signal direction through switch is reversed, worst case values  
are recorded. Repeat test for all switches.  
Repeat test for all switches.  
FIGURE 6. CROSSTALK TEST CIRCUIT  
FIGURE 7. CAPACITANCE TEST CIRCUIT  
During an overvoltage transient event, such as occurs during  
system level IEC 61000 ESD testing, substrate currents can be  
generated in the IC that can trigger parasitic SCR structures to  
turn ON, creating a low impedance path from the V+ power  
supply to ground. This will result in a significant amount of  
current flow in the IC, which can potentially create a latch-up  
state or permanently damage the IC. The external V+ resistor  
limits the current during this over-stress situation and has been  
found to prevent latch-up or destructive damage for many  
overvoltage transient events.  
Detailed Description  
The ISL84762 is a bidirectional, dual single pole/double throw  
(SPDT) analog switch that offers precise switching capability  
from a single 1.65V to 3.6V supply with low ON-resistance  
(0.39) and high speed operation (t  
= 14ns, t = 6ns).  
ON  
OFF  
The device is especially well suited for portable battery  
powered equipment due to its low operating supply voltage  
(1.65V), low power consumption (2.7µW max), low leakage  
currents (60nA max), and the tiny, Thin DFN and MSOP  
packages. The ultra low ON-resistance and r  
flatness provide  
ON  
very low insertion loss and distortion to applications that require  
signal reproduction.  
Under normal operation, the sub-microamp I  
current of the  
DD  
IC produces an insignificant voltage drop across the 100  
series resistor resulting in no impact to switch operation or  
performance.  
External V+ Series Resistor  
For improved ESD and latch-up immunity, Intersil recommends  
adding a 100resistor in series with the V+ power supply pin  
of the ISL84762 IC (see Figure 8).  
FN6105 Rev 1.00  
Page 6 of 12  
September 15, 2008  
ISL84762  
V+  
OPTIONAL  
SCHOTTKY  
DIODE  
C
OPTIONAL  
PROTECTION  
RESISTOR  
V+  
100  
OPTIONAL  
PROTECTION  
RESISTOR  
IN  
V
X
NO  
NC  
COM  
V
NX  
COM  
IN  
GND  
GND  
OPTIONAL  
SCHOTTKY  
DIODE  
FIGURE 8. V+ SERIES RESISTOR FOR ENHANCED ESD AND  
LATCH-UP IMMUNITY  
FIGURE 9. OVERVOLTAGE PROTECTION  
Power-Supply Considerations  
Supply Sequencing and Overvoltage Protection  
The ISL84762 construction is typical of most single supply  
CMOS analog switches, in that they have two supply pins: V+  
and GND. V+ and GND drive the internal CMOS switches and  
set their analog voltage limits. Unlike switches with a 4V  
maximum supply voltage, the ISL84762 4.8V maximum supply  
voltage provides plenty of room for the 10% tolerance of 3.6V  
supplies, as well as room for overshoot and noise spikes.  
With any CMOS device, proper power supply sequencing is  
required to protect the device from excessive input currents  
which might permanently damage the IC. All I/O pins contain  
ESD protection diodes from the pin to V+ and to GND (see  
Figure 9). To prevent forward biasing these diodes, V+ must be  
applied before any input signals, and the input signal voltages  
must remain between V+ and GND.  
The minimum recommended supply voltage is 1.65V but the  
part will operate with a supply below 1.5V. It is important to  
note that the input signal range, switching times, and  
ON-resistance degrade at lower supply voltages. Refer to the  
“Electrical Specifications” tables beginning on page 3 and  
“Typical Performance Curves” beginning on page 8 for details.  
If these conditions cannot be guaranteed, then precautions  
must be implemented to prohibit the current and voltage at the  
logic pin and signal pins from exceeding the maximum ratings  
of the switch. The following two methods can be used to  
provided additional protection to limit the current in the event  
that the voltage at a signal pin or logic pin goes below ground  
or above the V+ rail.  
V+ and GND also power the internal logic and level shiftiers.  
The level shiftiers convert the input logic levels to switched V+  
and GND signals to drive the analog switch gate terminals.  
Logic inputs can be protected by adding a 1kresistor in  
series with the logic input (see Figure 9). The resistor limits the  
input current below the threshold that produces permanent  
damage, and the sub-microamp input current produces an  
insignificant voltage drop during normal operation.  
This family of switches cannot be operated with bipolar  
supplies, because the input switching point becomes negative  
in this configuration.  
This method is not acceptable for the signal path inputs.  
Adding a series resistor to the switch input defeats the purpose  
of using a low r  
switch. Connecting Schottky diodes to the  
ON  
signal pins as shown in Figure 9 will shunt the fault current to  
the supply or to ground thereby protecting the switch. These  
Schottky diodes must be sized to handle the expected fault  
current.  
FN6105 Rev 1.00  
Page 7 of 12  
September 15, 2008  
 
ISL84762  
this part. At 100kHz, off-Isolation is about 68dB in 50  
systems, decreasing approximately 20dB per decade as  
frequency increases. Higher load impedances decrease off-  
Isolation and crosstalk rejection due to the voltage divider  
action of the switch OFF impedance and the load impedance.  
Logic-Level Thresholds  
This switch family is 1.8V CMOS compatible (0.5V and 1.4V)  
over a supply range of 2.0V to 3.6V (see Figure 16). At 3.6V  
the V level is about 1.27V. This is still below the 1.8V CMOS  
IH  
guaranteed high output minimum level of 1.4V, but noise  
margin is reduced.  
Leakage Considerations  
The digital input stages draw supply current whenever the  
digital input voltage is not at one of the supply rails. Driving the  
digital input signals from GND to V+ with a fast transition time  
minimizes power dissipation.  
Reverse ESD protection diodes are internally connected between  
each analog-signal pin and both V+ and GND. One of these  
diodes conducts if any analog signal exceeds V+ or GND.  
Virtually all the analog leakage current comes from the ESD  
diodes to V+ or GND. Although the ESD diodes on a given  
signal pin are identical and therefore fairly well balanced, they  
are reverse biased differently. Each is biased by either V+ or  
GND and the analog signal. This means their leakages will  
vary as the signal varies. The difference in the two diode  
leakages to the V+ and GND pins constitutes the analog-  
signal-path leakage current. All analog leakage current flows  
between each pin and one of the supply terminals, not to the  
other switch terminal. This is why both sides of a given switch  
can show leakage currents of the same or opposite polarity.  
There is no connection between the analog signal paths and  
High-Frequency Performance  
In 50systems, the signal response is reasonably flat even  
past 30MHz with a -3dB bandwidth of 120MHz (see Figure 17).  
The frequency response is very consistent over a wide V+  
range, and for varying analog signal levels.  
An OFF switch acts like a capacitor and passes higher  
frequencies with less attenuation, resulting in signal  
feedthrough from a switch’s input to its output. Off-Isolation is  
the resistance to this feedthrough, while crosstalk indicates the  
amount of feedthrough from one switch to another. Figure 18  
details the high off-Isolation and crosstalk rejection provided by  
Typical Performance Curves  
T = +25°C, Unless Otherwise Specified.  
A
0.7  
0.44  
0.42  
0.40  
0.38  
0.36  
0.34  
0.32  
0.30  
V+ = 2.7V  
= 100mA  
I
= 100mA  
COM  
I
COM  
0.6  
+85°C  
+25°C  
0.5  
V+ = 1.8V  
V+ = 3.6V  
0.4  
0.3  
0.2  
0.1  
V+ = 2.7V  
V+ = 3V  
-40°C  
0
0.5  
1.0  
1.5  
(V)  
2.0  
2.5  
3.0  
0
1
2
3
4
V
V
(V)  
COM  
COM  
FIGURE 11. ON-RESISTANCE vs SWITCH VOLTAGE  
FIGURE 10. ON-RESISTANCE vs SUPPLY VOLTAGE vs  
SWITCH VOLTAGE  
FN6105 Rev 1.00  
Page 8 of 12  
September 15, 2008  
ISL84762  
Typical Performance Curves  
T
= +25°C, Unless Otherwise Specified. (Continued)  
A
0.65  
100  
V+ = 1.8V  
I
= 100mA  
COM  
0.60  
75  
50  
25  
0
+85°C  
V+ = 3V  
0.55  
0.50  
0.45  
V+ = 1.8V  
+25°C  
1.5  
-40°C  
0.40  
0.35  
-25  
-50  
0
0.5  
1.0  
(V)  
2.0  
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
V
(V)  
V
COM  
COM  
FIGURE 12. ON-RESISTANCE vs SWITCH VOLTAGE  
FIGURE 13. CHARGE INJECTION vs SWITCH VOLTAGE  
60  
50  
40  
30  
14  
13  
12  
11  
10  
9
8
7
6
5
4
3
+85°C  
-40°C  
+25°C  
+85°C  
+25°C  
3.5  
20  
-40°C  
2.0  
10  
1.0  
1.5  
2.5  
3.0  
3.5  
4.0  
4.5  
1.5  
2.0  
2.5  
3.0  
4.0  
4.5  
1.0  
V+ (V)  
V+ (V)  
FIGURE 14. TURN-ON TIME vs SUPPLY VOLTAGE  
FIGURE 15. TURN-OFF TIME vs SUPPLY VOLTAGE  
1.5  
V+ = 3V  
1.4  
1.3  
1.2  
1.1  
1.0  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0
GAIN  
-20  
V
0
INH  
PHASE  
20  
40  
V
INL  
60  
80  
R
= 50  
= 0.2V  
100  
L
V
TO 2V  
P-P P-P  
IN  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
1M  
10M  
100M  
600M  
V+ (V)  
FREQUENCY (Hz)  
FIGURE 16. DIGITAL SWITCHING POINT vs SUPPLY VOLTAGE  
FIGURE 17. FREQUENCY RESPONSE  
FN6105 Rev 1.00  
Page 9 of 12  
September 15, 2008  
ISL84762  
Typical Performance Curves  
T
= +25°C, Unless Otherwise Specified. (Continued)  
A
-10  
10  
V+ = 3V  
-20  
20  
Die Characteristics  
-30  
-40  
-50  
30  
SUBSTRATE POTENTIAL (POWERED UP):  
40  
50  
60  
70  
80  
90  
GND (QFN Paddle Connection: Tie to GND or Float)  
TRANSISTOR COUNT:  
-60  
114  
ISOLATION  
-70  
PROCESS:  
-80  
Submicron CMOS  
CROSSTALK  
-90  
-100  
-110  
100  
110  
1k  
10k  
100k  
1M  
10M  
100M 500M  
FREQUENCY (Hz)  
FIGURE 18. CROSSTALK AND OFF-ISOLATION  
© Copyright Intersil Americas LLC 2004-2008. All Rights Reserved.  
All trademarks and registered trademarks are the property of their respective owners.  
For additional products, see www.intersil.com/en/products.html  
Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted  
in the quality certifications found at www.intersil.com/en/support/qualandreliability.html  
Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such  
modification does not, in Intersil's sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets are  
current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its  
subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Intersil or its subsidiaries.  
For information regarding Intersil Corporation and its products, see www.intersil.com  
FN6105 Rev 1.00  
Page 10 of 12  
September 15, 2008  
ISL84762  
Thin Dual Flat No-Lead Plastic Package (TDFN)  
L10.3x3A  
2X  
0.10 C  
A
10 LEAD THIN DUAL FLAT NO-LEAD PLASTIC PACKAGE  
A
D
MILLIMETERS  
2X  
0.10  
C B  
SYMBOL  
MIN  
0.70  
-
NOMINAL  
MAX  
0.80  
0.05  
NOTES  
A
A1  
A3  
b
0.75  
-
-
0.20 REF  
0.25  
3.0  
-
E
-
6
INDEX  
AREA  
0.20  
2.95  
2.25  
2.95  
1.45  
0.30  
3.05  
2.35  
3.05  
1.55  
5, 8  
D
-
TOP VIEW  
B
A
D2  
E
2.30  
3.0  
7, 8  
-
// 0.10  
0.08  
C
E2  
e
1.50  
0.50 BSC  
-
7, 8  
-
C
k
0.25  
0.25  
-
-
A3  
C
SIDE VIEW  
L
0.30  
10  
0.35  
8
SEATING  
PLANE  
N
2
D2  
D2/2  
2
Nd  
5
3
7
8
(DATUM B)  
Rev. 3 3/06  
NOTES:  
1
6
1. Dimensioning and tolerancing conform to ASME Y14.5-1994.  
2. N is the number of terminals.  
INDEX  
AREA  
NX k  
E2  
3. Nd refers to the number of terminals on D.  
(DATUM A)  
4. All dimensions are in millimeters. Angles are in degrees.  
E2/2  
5. Dimension b applies to the metallized terminal and is measured  
between 0.15mm and 0.30mm from the terminal tip.  
NX L  
6. The configuration of the pin #1 identifier is optional, but must be  
located within the zone indicated. The pin #1 identifier may be  
either a mold or mark feature.  
N
N-1  
NX b  
8
e
5
7. Dimensions D2 and E2 are for the exposed pads which provide  
improved electrical and thermal performance.  
(Nd-1)Xe  
REF.  
M
0.10  
C A B  
8. Nominal dimensions are provided to assist with PCB Land  
Pattern Design efforts, see Intersil Technical Brief TB389.  
BOTTOM VIEW  
C
9. Compliant to JEDEC MO-229-WEED-3 except for D2  
dimensions.  
L
(A1)  
NX (b)  
L1  
L
9
5
e
SECTION "C-C"  
TERMINAL TIP  
FOR ODD TERMINAL/SIDE  
C C  
FN6105 Rev 1.00  
Page 11 of 12  
September 15, 2008  
ISL84762  
Mini Small Outline Plastic Packages (MSOP)  
N
M10.118 (JEDEC MO-187BA)  
10 LEAD MINI SMALL OUTLINE PLASTIC PACKAGE  
INCHES  
MILLIMETERS  
E1  
E
SYMBOL  
MIN  
MAX  
MIN  
0.94  
0.05  
0.75  
0.18  
0.09  
2.95  
2.95  
MAX  
1.10  
0.15  
0.95  
0.27  
0.20  
3.05  
3.05  
NOTES  
A
A1  
A2  
b
0.037  
0.002  
0.030  
0.007  
0.004  
0.116  
0.116  
0.043  
0.006  
0.037  
0.011  
0.008  
0.120  
0.120  
-
-B-  
0.20 (0.008)  
INDEX  
AREA  
1 2  
A
B
C
-
-
TOP VIEW  
4X   
9
0.25  
(0.010)  
R1  
c
-
R
GAUGE  
PLANE  
D
3
E1  
e
4
SEATING  
PLANE  
L
0.020 BSC  
0.50 BSC  
-
-C-  
4X   
L1  
A
A2  
E
0.187  
0.016  
0.199  
0.028  
4.75  
0.40  
5.05  
0.70  
-
L
6
SEATING  
PLANE  
L1  
N
0.037 REF  
10  
0.95 REF  
10  
-
0.10 (0.004)  
-A-  
C
C
b
7
-H-  
A1  
e
R
0.003  
0.003  
-
-
0.07  
0.07  
-
-
-
D
0.20 (0.008)  
C
R1  
-
o
o
o
o
a
SIDE VIEW  
5
15  
5
15  
-
C
L
o
o
o
o
0
6
0
6
-
E
1
-B-  
Rev. 0 12/02  
0.20 (0.008)  
C
D
END VIEW  
NOTES:  
1. These package dimensions are within allowable dimensions of  
JEDEC MO-187BA.  
2. Dimensioning and tolerancing per ANSI Y14.5M-1994.  
3. Dimension “D” does not include mold flash, protrusions or gate  
burrs and are measured at Datum Plane. Mold flash, protrusion  
and gate burrs shall not exceed 0.15mm (0.006 inch) per side.  
4. Dimension “E1” does not include interlead flash or protrusions  
- H -  
and are measured at Datum Plane.  
Interlead flash and  
protrusions shall not exceed 0.15mm (0.006 inch) per side.  
5. Formed leads shall be planar with respect to one another within  
0.10mm (.004) at seating Plane.  
6. “L” is the length of terminal for soldering to a substrate.  
7. “N” is the number of terminal positions.  
8. Terminal numbers are shown for reference only.  
9. Dimension “b” does not include dambar protrusion. Allowable  
dambar protrusion shall be 0.08mm (0.003 inch) total in excess  
of “b” dimension at maximum material condition. Minimum space  
between protrusion and adjacent lead is 0.07mm (0.0027 inch).  
- B -  
-A -  
10. Datums  
and  
to be determined at Datum plane  
.
- H -  
11. Controlling dimension: MILLIMETER. Converted inch dimen-  
sions are for reference only  
FN6105 Rev 1.00  
Page 12 of 12  
September 15, 2008  

相关型号:

ISL84762IR-T

Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch
INTERSIL

ISL84762IR-T

DUAL 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, PDSO10, 3 X 3 MM, PLASTIC, MO-229WEED-3, TDFN-10
RENESAS

ISL84762IRZ

Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch
INTERSIL

ISL84762IRZ

Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch; DFN10, MSOP10; Temp Range: -40&deg; to 85&deg;C
RENESAS

ISL84762IRZ-T

Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch
INTERSIL

ISL84762IRZ-T

Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch; DFN10, MSOP10; Temp Range: -40&deg; to 85&deg;C
RENESAS

ISL84762IU

Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch
INTERSIL

ISL84762IU

DUAL 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, PDSO10, PLASTIC, MO-187BA, MSOP-10
RENESAS

ISL84762IU-T

Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch
INTERSIL

ISL84762IU-T

DUAL 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, PDSO10, PLASTIC, MO-187BA, MSOP-10
RENESAS

ISL84762IUZ

Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch
INTERSIL

ISL84762IUZ-T

Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch
INTERSIL