MAX4521-MAX4523 [MAXIM]
Quad, Low-Voltage, SPST Analog Switches; 四，低电压， SPST模拟开关
| 型号： | MAX4521-MAX4523 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Quad, Low-Voltage, SPST Analog Switches |
| 文件： | 总12页 (文件大小：157K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1136; Rev 1; 1/97
Qu a d , Lo w -Vo lt a g e , S P S T An a lo g S w it c h e s
1/MAX4523
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
The MAX4521/MAX4522/MAX4523 are quad, low-volt-
age, single-pole/single-throw (SPST) analog switches.
On-resistance (100Ω max) is matched between switch-
es to 4Ω max, and is flat (12Ω max) over the specified
signal range. Each switch can handle rail-to-rail analog
signals. The off-leakage current is only 1nA at +25°C
and 10nA at +85°C.
♦ +2V to +12V Single Supply
±2V to ±6V Dual Supplies
♦ 100Ω Signal Paths with ±5V Supplies
♦ Low Power Consumption, <1µW
♦ 4 Separately Controlled SPST Switches
♦ Rail-to-Rail Signal Handling
The MAX4521 has four normally closed (NC) switches,
and the MAX4522 has four normally open (NO) switch-
es. The MAX4523 has two NC switches and two NO
switches.
♦ Pin Compatible with Industry-Standard
DG211/DG212/DG213
♦ >2kV ESD Protection per Method 3015.7
These CMOS switches can operate with dual power
supplies ranging from ±2V to ±6V or a single supply
between +2V and +12V. They are fully specified for sin-
gle +2.7V operation.
♦ TTL/CMOS-Compatible Inputs with ±5V or
Single +5V Supply
All digital inputs have +0.8V and +2.4V logic thresh-
old s , e ns uring TTL/CMOS-log ic c omp a tib ility whe n
using ±5V or a single +5V supply.
________________________Ap p lic a t io n s
______________Ord e rin g In fo rm a t io n
Battery-Operated Equipment
Data Acquisition
Test Equipment
Avionics
PART
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
16 QSOP
MAX4521CPE
MAX4521CSE
MAX4521CEE
MAX4521C/D
Dice*
Audio Signal Routing
Networking
Ordering Information continued at end of data sheet.
*Contact factory for dice specifications.
_____________________P in Co n fig u ra t io n s /Fu n c t io n a l Dia g ra m s /Tru t h Ta b le s
TOP VIEW
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
IN1
16
15
14
IN1
16 IN2
15 COM2
14 NO2
13 V+
IN1
16 IN2
15 COM2
14 NC2
13 V+
IN2
COM1
NC1
V-
COM2
NC2
COM1
NO1
V-
COM1
NO1
V-
13 V+
MAX4522
MAX4523
MAX4521
N.C.
12
11
10
9
GND
NC4
12
12
GND
NO4
GND
NO4
N.C.
N.C.
NC3
COM3
IN3
11
10
9
11
NO3
COM3
IN3
NC3
10
9
COM3
IN3
COM4
IN4
COM4
IN4
COM4
IN4
DIP/SO/QSOP
DIP/SO/QSOP
DIP/SO/QSOP
MAX4521
MAX4522
MAX4523
SWITCHES
1, 4
SWITCHES
2, 3
LOGIC
SWITCH
LOGIC
SWITCH
LOGIC
0
1
ON
0
1
OFF
ON
0
1
OFF
ON
ON
OFF
OFF
SWITCHES SHOWN FOR LOGIC "0" INPUT
N.C. = NOT CONNECTED
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
Qu a d , Lo w -Vo lt a g e , S P S T An a lo g S w it c h e s
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to GND
Continuous Power Dissipation (T = +70°C) (Note 2)
A
V+.....................................................................-0.3V to +13.0V
V- .....................................................................-13.0V to +0.3V
V+ to V- ............................................................-0.3V to +13.0V
All Other Pins (Note 1)..........................(V- - 0.3V) to (V+ + 0.3V)
Continuous Current into Any Terminal..............................±10mA
Peak Current into Any Terminal
Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW
Narrow SO (derate 8.70mW/°C above +70°C) ............696mW
QSOP (derate 9.52mW/°C above +70°C)....................762mW
CERDIP (derate 10.00mW/°C above +70°C)...............800mW
Operating Temperature Ranges
MAX452_C_E ......................................................0°C to +70°C
MAX452_E_E ...................................................-40°C to +85°C
MAX452_MJE ................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10 sec) ............................+300°C
(pulsed at 1ms,10% duty cycle)...................................±20mA
ESD per Method 3015.7 ..................................................>2000V
Note 1: Signals on NC_, NO_, COM_, or IN_ exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current to
maximum current rating.
Note 2: All leads are soldered or welded to PC boards.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS—Dual Supplies
(V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.)
MAX A
A
MIN
MIN
TYP
(Note 3)
MAX
PARAMETER
ANALOG SWITCH
SYMBOL
CONDITIONS
T
UNITS
A
V
, V
,
COM_ NO_
Analog Signal Range
(Note 4)
C, E, M
V-
V+
V
1/MAX4523
V
NC_
+25°C
C, E, M
+25°C
65
1
100
125
4
COM_ to NO_, COM_ to NC_
On-Resistance
V+ = 5V, V- = -5V,
= ±3V, I
R
Ω
ON
V
COM_
= 1mA
= 1mA
COM_
COM_ to NO_, COM_ to NC_
On-Resistance Match Between
Channels (Note 5)
V+ = 5V, V- = -5V,
= ±3V, I
∆R
Ω
ON
V
COM_
COM_
C, E, M
+25°C
6
7
12
15
COM_ to NO_, COM_ to NC_
On-Resistance Flatness
(Note 6)
V+ = 5V, V- = -5V,
= ±3V, I
R
Ω
FLAT(ON)
V
COM_
= 1mA
COM_
C, E, M
+25°C
C, E
M
-1
-10
-100
-1
0.01
0.01
0.01
1
10
100
1
NO_, NC_ Off-Leakage Current
(Note 7)
I
I
,
V+ = 5.5V, V- = -5.5V,
NO_(OFF)
nA
nA
nA
±
4.5V, V = ±4.5V
N_
V
COM_
=
NC_(OFF)
+25°C
C, E
M
COM_ Off-Leakage Current
(Note 7)
V+ = 5.5V, V- = -5.5V,
I
-10
-100
-2
10
100
2
±
4.5V
COM_(OFF)
V
COM_
= ±4.5V, V
=
N_
+25°C
C, E
M
COM_ On-Leakage Current
(Note 7)
V+ = 5.5V, V- = -5.5V,
= ±4.5V
I
-20
-200
20
200
COM_(ON)
V
COM_
2
_______________________________________________________________________________________
Qu a d , Lo w -Vo lt a g e , S P S T An a lo g S w it c h e s
1/MAX4523
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.)
MAX A
A
MIN
MIN
TYP
(Note 3)
MAX
PARAMETER
LOGIC INPUT
SYMBOL
CONDITIONS
T
UNITS
A
IN_ Input Logic Threshold High
IN_ Input Logic Threshold Low
V
C, E, M
C, E, M
1.6
1.6
2.4
1
V
V
IN_H
V
IN_L
0.8
-1
IN_ Input Current Logic High
or Low
I
, I
V
IN_
= 0.8V or 2.4V
C, E, M
0.03
µA
INH_ INL_
SWITCH DYNAMIC CHARACTERISTICS
+25°C
C, E, M
+25°C
45
15
80
100
30
V
= ±3V, V+ = 4.5V,
COM_
Turn-On Time
Turn-Off Time
t
ns
ns
ON
V- = -4.5V, Figure 1
V
COM_
= ±3V, V+ = 4.5V,
t
OFF
V- = -4.5V, Figure 1
V = ±3V, V+ = 5.5V,
COM_
C, E, M
40
Break-Before-Make Time Delay
(MAX4523 Only)
t
+25°C
+25°C
5
20
1
ns
BBM
Q
V- = -5.5V, Figure 2
C
= 1nF, V = 0V, R = 0Ω,
L
NO_
S
Charge Injection (Note 4)
5
pC
Figure 3
V
= GND, f = 1MHz,
NO_
NO_, NC_ Off-Capacitance
COM_ Off-Capacitance
COM_ On-Capacitance
C
+25°C
+25°C
+25°C
2
2
5
pF
pF
pF
N_(OFF)
Figure 6
V
COM_
= GND, f = 1MHz,
C
COM_(OFF)
Figure 6
V
COM_
= V = GND,
NO_
C
COM_(ON)
f = 1MHz, Figure 7
R
= 50Ω, C = 15pF,
L
L
Off-Isolation (Note 8)
V
V
= 1V , f = 100kHz,
RMS
+25°C
+25°C
< -90
< -90
dB
dB
ISO
N_
Figure 4
R
= 50, C = 15pF,
L
L
Channel-to-Channel Crosstalk
(Note 9)
V
V
= 1V
, f = 100kHz,
CT
N_
RMS
Figure 5
POWER SUPPLY
Power-Supply Range
V+, V-
I+
C, E, M
+25°C
C, E, M
+25°C
-6
-1
-1
-1
-1
6
1
1
1
1
V
0.05
0.05
V+ Supply Current
V- Supply Current
V+ = 5.5V, all V = 0V or V+
IN_
µA
I-
V- = -5.5V
µA
C, E, M
_______________________________________________________________________________________
3
Qu a d , Lo w -Vo lt a g e , S P S T An a lo g S w it c h e s
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = +4.5V to +5.5V, V- = 0V, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.)
MAX A
A
MIN
MIN
TYP
(Note 3)
MAX
PARAMETER
ANALOG SWITCH
SYMBOL
CONDITIONS
T
UNITS
A
V
, V
,
COM_ NO_
Analog Signal Range
(Note 4)
V+ = 4.5V, V
C, E, M
0
V+
V
V
NC_
+25°C
C, E, M
+25°C
125
2
200
250
8
COM_ to NO_, COM_ to NC_
On-Resistance
= 3.5V,
COM_
R
Ω
ON
I
= 1mA
COM_
COM_ to NO_, COM_ to NC_
On-Resistance Match Between
Channels (Note 5)
V+ = 5V, V
= 3.5V,
COM_
∆R
Ω
ON
I
= 1mA
COM_
C, E, M
10
+25°C
C, E
M
-1
-10
-100
-1
0.01
0.01
0.01
1
10
100
1
NO_, NC_ Off-Leakage Current
(Notes 7, 10)
I
I
,
V+ = 5.5V; V
= 1V, 4.5V;
= 1V, 4.5V;
NO_(OFF)
COM_
nA
nA
nA
V
N_
= 4.5V, 1V
NC_(OFF)
+25°C
C, E
M
COM_ Off-Leakage Current
(Notes 7, 10)
V+ = 5.5V; V
COM_
I
-10
-100
-2
10
100
2
COM_(OFF)
V
N_
= 4.5V, 1V
+25°C
C, E,
M
COM_ On-Leakage Current
(Notes 7, 10)
I
V+ = 5.5V; V
= 4.5V, 1V
-20
-200
20
200
COM_(ON)
COM_
LOGIC INPUT
IN_ Input Logic Threshold High
IN_ Input Logic Threshold Low
V
C, E
C, E
1.6
1.6
2.4
1
V
V
IN_H
V
IN_L
0.8
-1
1/MAX4523
IN_ Input Current Logic High
or Low
I
, I
V
IN_
= 0.8V or 2.4V
C, E
0.03
µA
INH_ INL_
SWITCH DYNAMIC CHARACTERISTICS
+25°C
C, E, M
+25°C
60
20
100
150
50
V
= 3V, V+ = 4.5V,
COM_
Turn-On Time
Turn-Off Time
t
ns
ns
ON
Figure 1
V
COM_
= 3V, V+ = 4.5V,
t
OFF
Figure 1
C, E, M
75
Break-Before-Make Time Delay
(MAX4523 Only)
V
COM_
Figure 2
= 3V, V+ = 5.5V,
t
+25°C
+25°C
10
30
1
ns
BBM
C
= 1nF, V
= 0V, R = 0Ω,
S
L
NO_
Charge Injection (Note 4)
POWER SUPPLY
Q
5
pC
Figure 3
+25°C
C, E, M
+25°C
-1
-1
-1
-1
0.05
0.05
1
1
1
1
V+ Supply Current
I+
I-
V+ = 5.5V, all V = 0V or V+
IN_
µA
µA
V- Supply Current
V- = 0V
C, E, M
4
_______________________________________________________________________________________
Qu a d , Lo w -Vo lt a g e , S P S T An a lo g S w it c h e s
1/MAX4523
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = +2.7V to +3.6V, V- = 0V, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.)
MAX A
A
MIN
MIN
TYP
(Note 3)
MAX
PARAMETER
ANALOG SWITCH
SYMBOL
CONDITIONS
T
UNITS
A
V
, V
,
COM_ NO_
Analog Signal Range
(Note 4)
V+ = 2.7V, V
C, E, M
0
V+
V
V
NC_
+25°C
260
500
600
COM_ to NO_, COM_ to NC_
On-Resistance
= 1.0V,
COM_
R
Ω
ON
I
= 0.1mA
COM_
C, E, M
LOGIC INPUT
IN_ Input Logic Threshold High
IN_ Input Logic Threshold Low
V
C, E
C, E
1.6
1.6
2.4
1
V
V
IN_H
V
IN_L
0.8
-1
IN_ Input Current Logic High
or Low
I
, I
V
IN_
= 0.8V or 2.4V
C, E
0.03
µA
INH_ INL_
SWITCH DYNAMIC CHARACTERISTICS (Note 4)
+25°C
C, E, M
+25°C
120
40
250
300
80
V
= 1.5V, V+ = 2.7V,
COM_
Turn-On Time
Turn-Off Time
t
ns
ns
ON
Figure 1
V
COM_
= 1.5V, V+ = 2.7V,
t
OFF
Figure 1
C, E, M
100
Break-Before-Make Time Delay
(MAX4523 Only)
V
COM_
Figure 2
= 1.5V, V+ = 3.6V,
t
+25°C
+25°C
15
50
ns
BBM
C
= 1nF, V
= 0V, R = 0Ω,
S
L
NO_
Charge Injection
POWER SUPPLY
V+ Supply Current
Q
0.5
5
pC
Figure 3
+25°C
C, E, M
+25°C
-1
-1
-1
-1
0.05
0.05
1
1
1
1
I+
I-
V+ = 3.6V, all V = 0V or V+
IN_
µA
µA
V- Supply Current
V- = 0V
C, E, M
Note 3: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 4: Guaranteed by design.
Note 5: ∆R
= ∆R
- ∆R
.
ON(MIN)
ON
ON(MAX)
Note 6: Resistance flatness is defined as the difference between the maximum and minimum on-resistance values, as measured
over the specified analog signal range.
Note 7: Leakage parameters are 100% tested at maximum rated temperature, and guaranteed by correlation at T = +25°C.
A
Note 8: Off-isolation = 20log10 [ V
/ (V
or V
) ], V
= output, V
or V
= input to off switch.
COM_
NC_
NO_
COM_
NC_
NO_
Note 9: Between any two switches.
Note 10: Leakage testing for single-supply operation is guaranteed by testing with dual supplies.
_______________________________________________________________________________________
5
Qu a d , Lo w -Vo lt a g e , S P S T An a lo g S w it c h e s
__________________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s
(V+ = +5V, V- = -5V, GND = 0V, T = +25°C, unless otherwise noted.)
A
ON-RESISTANCE vs. V
ON-RESISTANCE vs. V
COM
ON-RESISTANCE vs. V
AND
COM
COM
(DUAL SUPPLIES)
(SINGLE SUPPLY)
TEMPERATURE (DUAL SUPPLIES)
180
160
140
120
100
80
350
300
250
200
150
100
50
110
100
90
V+, V- = 2.0V
V+ = 2.7V
T
= +125°C
A
V+, V- = 3.0V
V+ = 3.3V
80
T
A
= +85°C
70
T
= +25°C
A
60
60
V+, V- = 4.0V
50
V+ = 5.0V
40
T
= 0°C
A
V+, V- = 5.0V
40
30
20
T
= -55°C
A
0
0
-5 -4 -3 -2 -1
0
1
2
3
4
5
0
1
2
3
4
5
-5 -4 -3 -2 -1
0
1
2
3
4
5
V
COM
(V)
V
COM
(V)
V
COM
(V)
CHARGE INJECTION
ON- AND OFF-LEAKAGE CURRENT
vs. TEMPERATURE
ON-RESISTANCE vs. V
TEMPERATURE (SINGLE SUPPLY)
AND
COM
vs.V
COM
2
1
10n
200
180
160
T
= +125°C
A
1n
100p
10p
1p
ON LEAKAGE
V+ = +5V
V- = -5V
140
120
100
80
1/MAX4523
T
A
= +85°C
V+ = +5V
V- = 0V
T
A
= +25°C
0
T
A
= 0°C
OFF LEAKAGE
-1
-2
T
A
= -55°C
4
0.1p
60
-5 -4 -3 -2 -1
0
1
2
3
4
5
-55
-25
0
25 50 75 100 125
0
1
2
3
5
V
COM
(V)
TEMPERATURE (°C)
V
COM
(V)
TURN-ON/OFF TIME
vs. TEMPERATURE
POWER-SUPPLY CURRENT
vs. TEMPERATURE
TURN-ON/OFF TIME vs.
SUPPLY VOLTAGE
100
90
1
200
180
80
70
60
50
40
30
20
10
0
0.1
0.01
160
140
120
100
80
I+
I-
t
ON
0.001
t
ON
60
t
OFF
0.0001
0.00001
40
t
OFF
20
0
-55
-25
0
25 50 75 100 125
-55
-25
0
25 50 75 100 125
2
3
4
5
6
7
8
9
10 11 12
TEMPERATURE (°C)
TEMPERATURE (°C)
V+ (V)
6
_______________________________________________________________________________________
Qu a d , Lo w -Vo lt a g e , S P S T An a lo g S w it c h e s
1/MAX4523
_____________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )
(V+ = +5V, V- = -5V, GND = 0V, T = +25°C, unless otherwise noted.)
A
TOTAL HARMONIC DISTORTION
FREQUENCY RESPONSE
vs. FREQUENCY
5
0
-10
-20
100
V+ = +5V
V- = -5V
600Ω IN AND OUT
0
10
-5
INSERTION LOSS
-10
-15
-20
-25
-30
-35
-40
-30
-40
-50
-60
-70
-80
-90
1
0.1
OFF-ISOLATION
0.01
0.001
ON-PHASE
50Ω IN/OUT
0.01
0.1
1
10
100 300
10
100
1k
10k
100k
FREQUENCY (MHz)
FREQUENCY (Hz)
______________________________________________________________P in De s c rip t io n
PIN
NAME
FUNCTION
MAX4521
1, 16, 9, 8
2, 15, 10, 7
3, 14, 11, 6
—
MAX4522
1, 16, 9, 8
2, 15, 10, 7
—
MAX4523
1, 16, 9, 8
2, 15, 10, 7
—
IN1–IN4
COM1–COM4
NC1–NC4
NO1–NO4
NO1, NO4
NC2, NC3
Logic-Control Digital Inputs
Analog Switch Common* Terminals
Analog Switch Normally Closed Terminals
Analog Switch Normally Open Terminals
Analog Switch Normally Open Terminals
Analog Switch Normally Closed Terminals
3, 14, 11, 6
—
—
—
3, 6
—
—
14, 11
Negative Analog Supply-Voltage Input. Connect to GND for single-
supply operation.
4
4
4
V-
Ground. Connect to digital ground. (Analog signals have no ground
reference; they are limited to V+ and V-.)
5
5
5
GND
N.C.
V+
12
13
12
13
12
13
No Connect. Not internally connected.
Positive Analog and Digital Supply Voltage Input. Internally con-
nected to substrate.
*NO_ (or NC_) and COM_ pins are identical and interchangeable. Either may be considered as an input or output; signals pass
equally well in either direction.
_______________________________________________________________________________________
7
Qu a d , Lo w -Vo lt a g e , S P S T An a lo g S w it c h e s
The logic-level thresholds are CMOS/TTL compatible
when V+ = +5V. The threshold increases slightly as V+
is raised, and when V+ reaches +12V, the level thresh-
old is about 3.1V. This is above the TTL output high-
level minimum of 2.8V, but still compatible with CMOS
outputs.
__________Ap p lic a t io n s In fo rm a t io n
P o w e r-S u p p ly Co n s id e ra t io n s
Overview
The MAX4521/MAX4522/MAX4523 construction is typi-
cal of most CMOS analog switches. They have three
supply pins: V+, V-, and GND. V+ and V- are used to
drive the internal CMOS switches, and they set the lim-
its of the analog voltage on any switch. Reverse ESD-
protection diodes are internally connected between
each analog-signal pin and both V+ and V-. If any ana-
log signal exceeds V+ or V-, one of these diodes con-
ducts. During normal operation these reverse-biased
ESD diodes leak, forming the only current drawn from
V+ or V-.
Bipolar Supplies
The MAX4521/MAX4522/MAX4523 operate with bipolar
supplies between ±2V and ±6V. The V+ and V- sup-
plies need not be symmetrical, but their sum cannot
exceed the absolute maximum rating of 13.0V. Do not
connect the MAX4521/MAX4522/MAX4523 V+ to +3V,
and then connect the logic-level-input pins to TTL
logic-level signals. TTL logic-level outputs in excess
of the absolute maximum ratings can damage the
part and/or external circuits.
Virtually all the analog leakage current is through the
ESD diodes. Although the ESD diodes on a given sig-
nal pin are identical and therefore fairly well balanced,
they are reverse biased differently. Each is biased by
either V+ or V- and the analog signal. This means their
leakages vary as the signal varies. The difference in the
two diode leakages from the signal path to the V+ and
V- pins constitutes the analog-signal-path leakage cur-
rent. All analog leakage current flows to the supply ter-
minals, not to the other switch terminal. This explains
how both sides of a given switch can show leakage
currents of the same or opposite polarity.
Caution: The absolute maximum V+ to V- differential
voltage is 13.0V. Typical ±6V or 12V supplies with
±10% tolerances can be as high as 13.2V. This voltage
can damage the MAX4521/MAX4522/MAX4523. Even
±5% tolerance supplies may have overshoot or noise
spikes that exceed 13.0V.
Single Supply
The MAX4521/MAX4522/MAX4523 op e ra te from a
single supply between +2V and +12V when V- is con-
nected to GND. All of the bipolar precautions must be
observed.
The re is no c onne c tion b e twe e n the a na log -s ig na l
paths and GND. The analog-signal paths consist of an
N-channel and P-channel MOSFET with their sources
and drains paralleled, and their gates driven out of
phase to V+ and V- by the logic-level translators.
1/MAX4523
Hig h -Fre q u e n c y P e rfo rm a n c e
In 50Ω systems, signal response is reasonably flat up
to 50MHz (s e e Typ ic a l Op e ra ting Cha ra c te ris tic s ).
Ab ove 20MHz, the on-re s p ons e ha s s e ve ra l minor
peaks that are highly layout dependent. The problem
with high-frequency operation is not turning the switch
on, but turning it off. The off-state switch acts like a
c a p a c itor a nd pa sse s hig he r fre q ue nc ie s with le ss
attenuation. At 10MHz, off-isolation is about -52dB in
50Ω systems, becoming worse (approximately 20dB
per decade) as frequency increases. Higher circuit
impedances also make off-isolation worse. Adjacent
channel attenuation is about 3dB above that of a bare
IC socket, and is due entirely to capacitive coupling.
V+ and GND power the internal logic and logic-level
translators, and set the input logic thresholds. The
log ic -le ve l tra ns la tors c onve rt the log ic le ve ls to
switched V+ and V- signals, to drive the gates of the
analog switches. This drive signal is the only connec-
tion between the logic supplies and the analog sup-
plies. V+ and V- have ESD-protection diodes to GND.
The logic-level inputs and output have ESD protection
to V+ and to GND.
Increasing V- has no effect on the logic-level thresh-
olds, but it does increase the drive to the P-channel
switches, reducing their on-resistance. V- also sets the
negative limit of the analog-signal voltage.
8
_______________________________________________________________________________________
Qu a d , Lo w -Vo lt a g e , S P S T An a lo g S w it c h e s
1/MAX4523
______________________________________________Te s t Circ u it s /Tim in g Dia g ra m s
V+
MAX4521
MAX4522
MAX4523
V
COM
t < 20ns
r
t < 20ns
f
SWITCH
OUTPUT
+3V
0V
V+
LOGIC
INPUT
50%
COM
IN
NO
SWITCH
INPUT
V
OUT
or NC
R
300Ω
C
L
35pF
L
t
OFF
GND
0V
V-
V-
V
OUT
LOGIC
INPUT
0.9 x V
0.9 x V
OUT
0UT
SWITCH
OUTPUT
0V
t
ON
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
C INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
R
L
V
= V
OUT COM
(
)
R + R
L
ON
Figure 1. Switching Time
V+
MAX4523
COM1
+3V
LOGIC
INPUT
50%
V+
NO
NC
V
OUT1
0V
0V
V
COM1
COM2
IN1, 2
R
L1
V
C
L1
OUT2
SWITCH
OUTPUT 1
(V
OUT1
V
COM2
0.9 x V
0UT1
)
R
L2
C
L2
SWITCH
OUTPUT 2
LOGIC
INPUT
GND
V-
V-
0.9 x V
OUT2
(V
)
OUT2
0V
R = 300Ω
C = 35pF
L
L
t
D
t
D
C INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
Figure 2. Break-Before-Make Interval (MAX4523 only)
MAX4521
MAX4522
V+
∆V
OUT
MAX4523
V+
V
OUT
R
GEN
COM
NC or
NO
V
OUT
IN
OFF
OFF
OFF
C
L
V
GEN
ON
ON
V-
V-
GND
IN
OFF
IN
Q = (∆V )(C )
OUT
L
V = +3V
IN
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 3. Charge Injection
_______________________________________________________________________________________
9
Qu a d , Lo w -Vo lt a g e , S P S T An a lo g S w it c h e s
_________________________________Te s t Circ u it s /Tim in g Dia g ra m s (c o n t in u e d )
MAX4521
MAX4522
MAX4523
MAX4521
V+
10nF
V+
V+
10nF
MAX4522
MAX4523
SIGNAL
SIGNAL
GENERATOR 0dBm
V+
GENERATOR 0dBm
50Ω
COM
N01
IN2
COM1
0V or
2.4V
IN1
IN
0V or 2.4V
ANALYZER
0V or 2.4V
NC
or NO
ANALYZER
COM2
N02
NC
GND
V-
GND
V-
10nF
10nF
R
L
R
L
V-
V-
Figure 4. Off Isolation
Figure 5. Crosstalk
MAX4521
MAX4522
MAX4523
V+
MAX4521
MAX4522
MAX4523
V+
10nF
10nF
1/MAX4523
V+
COM
V+
COM
CAPACITANCE
METER
IN
0V or
2.4V
IN
0V or
2.4V
CAPACITANCE
METER
f = 1MHz
NC
NC
or NO
GND
or NO
f = 1MHz
10nF
GND
V-
V-
V-
10nF
V-
Figure 7. Channel-On Capacitance
Figure 6. Channel-Off Capacitance
10 ______________________________________________________________________________________
Qu a d , Lo w -Vo lt a g e , S P S T An a lo g S w it c h e s
1/MAX4523
_Ord e rin g In fo rm a t io n (c o n t in u e d )
___________________Ch ip To p o g ra p h y
PART
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
0°C to +70°C
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
16 QSOP
"B"
GND
V-
"A"
MAX4521EPE
MAX4521ESE
MAX4521EEE
MAX4521MJE
MAX4522CPE
MAX4522CSE
MAX4522CEE
MAX4522C/D
MAX4522EPE
MAX4522ESE
MAX4522EEE
MAX4522MJE
MAX4523CPE
MAX4523CSE
MAX4523CEE
MAX4523C/D
MAX4523EPE
MAX4523ESE
MAX4523EEE
MAX4523MJE
16 CERDIP**
16 Plastic DIP
16 Narrow SO
16 QSOP
0°C to +70°C
COM4
IN4
0°C to +70°C
COM1
IN1
0°C to +70°C
Dice*
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
0°C to +70°C
16 Plastic DIP
16 Narrow SO
16 QSOP
16 CERDIP**
16 Plastic DIP
16 Narrow SO
16 QSOP
IN3
IN2
0°C to +70°C
COM2
COM3
0°C to +70°C
0. 057"
(1. 45mm)
0°C to +70°C
Dice*
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
16 Plastic DIP
16 Narrow SO
16 QSOP
16 CERDIP**
*Contact factory for dice specifications.
**Contact factory for availability.
"C"
V+
"D"
0. 046"
(1. 19mm)
MAX4521
MAX4522
MAX4523
PIN
NAME
PIN
NAME
NO1
PIN
NAME
A
B
C
D
NC1
A
B
C
D
A
NO1
NC4
NC3
NC2
NO4
NO3
NO2
B
C
D
NO4
NC3
NC2
TRANSISTOR COUNT: 97
SUBSTRATE CONNECTED TO V+
______________________________________________________________________________________ 11
Qu a d , Lo w -Vo lt a g e , S P S T An a lo g S w it c h e s
________________________________________________________P a c k a g e In fo rm a t io n
INCHES
MILLIMETERS
INCHES
MILLIMETERS
DIM
DIM PINS
MIN
0.061
MAX
MIN
MAX
1.73
0.25
1.55
0.31
0.25
MIN MAX MIN
MAX
4.98
0.18
8.74
1.40
8.74
0.76
9.98
A
0.068
1.55
16 0.189 0.196 4.80
16 0.0020 0.0070 0.05
20 0.337 0.344 8.56
20 0.0500 0.0550 1.27
24 0.337 0.344 8.56
24 0.0250 0.0300 0.64
28 0.386 0.393 9.80
28 0.0250 0.0300 0.64
D
S
D
S
D
S
D
S
D
A1 0.004 0.0098 0.127
A2 0.055
0.061
0.012
1.40
0.20
0.19
B
C
D
E
e
0.008
A
0.0075 0.0098
SEE VARIATIONS
e
0.150
0.157
3.81
3.99
A1
B
0.25 BSC
0.635 BSC
0.76
21-0055A
H
h
0.230
0.010
0.016
0.244
0.016
0.035
5.84
0.25
0.41
6.20
0.41
0.89
S
L
N
S
α
SEE VARIATIONS
SEE VARIATIONS
0°
8°
0°
8°
E
H
QSOP
QUARTER
SMALL-OUTLINE
PACKAGE
h x 45°
α
A2
N
E
L
C
INCHES
MILLIMETERS
DIM
MIN
0.053
MAX
0.069
0.010
0.019
0.010
0.157
MIN
1.35
0.10
0.35
0.19
3.80
MAX
1.75
0.25
0.49
0.25
4.00
1/MAX4523
A
D
A1 0.004
B
C
E
e
0.014
0.007
0.150
0°-8°
A
0.101mm
0.004in.
0.050
1.27
e
H
L
0.228
0.016
0.244
0.050
5.80
0.40
6.20
1.27
A1
C
B
L
INCHES
MILLIMETERS
DIM PINS
Narrow SO
SMALL-OUTLINE
PACKAGE
MIN MAX
MIN
MAX
5.00
8.75
8
0.189 0.197 4.80
D
D
D
E
H
14 0.337 0.344 8.55
16 0.386 0.394 9.80 10.00
(0.150 in.)
21-0041A
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12 ____________________Ma x im In t e g ra t e d P ro d u c t s , 1 2 0 S a n Ga b rie l Drive , S u n n yva le , CA 9 4 0 8 6 4 0 8 -7 3 7 -7 6 0 0
© 1997 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
相关型号：
SI9130DB
5- and 3.3-V Step-Down Synchronous ConvertersWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1-E3
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135_11
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9136_11
Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130CG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130LG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130_11
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
©2020 ICPDF网 联系我们和版权申明