MAX313FESE [ROCHESTER]
QUAD 1-CHANNEL, SGL POLE SGL THROW SWITCH, PDSO16, MS-012AC, SO-16;
| 型号： | MAX313FESE |
| 厂家： | 
Rochester Electronics |
| 描述： | QUAD 1-CHANNEL, SGL POLE SGL THROW SWITCH, PDSO16, MS-012AC, SO-16 光电二极管 输出元件 |
| 文件： | 总16页 (文件大小：1014K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-2737; Rev 0; 1/03
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
General Description
Features
The MAX312F/MAX313F/MAX314F are quad, single-
pole/single-throw (SPST), fault-protected analog switch-
es. They are pin compatible with the industry-standard
nonprotected MAX312/MAX313/MAX314. These switch-
es feature fault-protected inputs and Rail-to-Rail signal-
handling capability. All analog signal terminals are pro-
tected from overvoltage faults up to 3ꢀ6 with power on
and up to 4ꢁ6 with power off. ꢂuring a fault condition,
the COM_, NO_, or NC_ terminal becomes an open cir-
cuit and only microamperes of leakage current flow from
the source. On-resistance is 1ꢁΩ (max) and is matched
between switches to ꢁ.5Ω (max) at +25°C.
The MAX312F has four normally closed (NC) switches.
The MAX313F has four normally open (NO) switches.
The MAX314F has two NC and two NO switches. These
CMOS switches operate with dual power supplies rang-
ing from 4.56 to 2ꢁ6 or a single supply between +ꢃ6
and +3ꢀ6. All digital inputs have +ꢁ.86 and +2.46 logic
thresholds, ensuring both TTL and CMOS logic com-
patibility when using 156 or a single +126 supply.
ꢀ No Power-Supply Sequencing Required
ꢀ Rail-to-Rail Signal Handling
ꢀ All Switches Off with Power Off
ꢀ All Switches Off when V+ is Off and V- is On
ꢀ ±±4V ꢀault Protection with Power Off
ꢀ ±ꢁ3V ꢀault Protection with ±ꢂꢃV Supplies
ꢀ Control Line ꢀault Protection from
V- - 4.ꢁV to V- + ±4V
ꢀ Pin Compatible with Industry-Standard
DG±ꢂꢂ/DG±ꢂ2/DG±ꢂꢁ
ꢀ 344ns (typ) ꢀault Response Time
ꢀ ꢂ4Ω (max) R
with ±ꢂꢃV Supplies
ON
ꢀ ±±.ꢃV to ±24V Dual Supplies
ꢀ +9V to +ꢁ3V Single Supply
ꢀ TTL- and CMOS-Compatible Logic Inputs with
For supply voltages of 56, +56, and +36, refer to the
MAX4711/MAX4712/MAX4713 data sheet.
±ꢂꢃV or Single +9V to +ꢂꢃV Supplies
Ordering Information
Applications
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 SO
Communications Systems
Signal Routing
MAXꢁꢂ2ꢀESE
MAX312FEPE
16 Plastic DIP
Test Equipment
Ordering Information continued at end of data sheet.
ꢂata Acquisition
Pin Configurations
Industrial and Process Control Systems
Avionics
TOP VIEW
1
Redundant/Backup Systems
ATE
IN1
COM1
NC1
16
IN2
15 COM2
NC2
2
3
4
5
6
7
8
14
13 V+
Hot Swap
V-
MAX312F
N.C.
GND
NC4
12
11
10
9
NC3
COM3
IN3
COM4
IN4
DIP/SO
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
MAXꢁꢂ2ꢀ
LOGIC
SWITCH
Functional Diagram appears at end of data sheet.
0
1
ON
OFF
Pin Configurations continued at end of data sheet.
N.C. = NOT CONNECTED. SWITCHES SHOWN FOR LOGIC 0 INPUT.
ALL SWITCHES ARE OFF WITH POWER REMOVED.
________________________________________________________________ Maxim Integrated Products
ꢂ
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND.)
Continuous Current (any other terminal).......................... 30mA
Continuous Current (COM_, NO_, NC_)......................... 100mA
V+...........................................................................-0.3V to +44V
V- ............................................................................-44V to +0.3V
V+ to V-...................................................................-0.3V to +44V
IN_ ......................................................... (V- - 0.3V) to (V- + 40V)
NO_, NC_ to COM_ (Note 1) .................................. -40V to +40V
COM_, NO_, NC_ Voltage with
Power On (Note 1).............................................. -36V to +36V
COM_, NO_, NC_ Voltage with
Power Off (Note 1).............................................. -40V to +40V
Peak Current COM_, NO_, NC_
Continuous Power Dissipation (T = +70°C)
A
16-Pin SO (derate 8.7mW/°C above +70°C)................696mW
16-Pin Plastic DIP (derate 10.53mW/°C
above +70°C) ........................................................ 842mW
Operating Temperature Range .......................... -40°C to +85°C
Junction Temperature .................................................... +150°C
Storage Temperature Range ........................... -65°C to +160°C
Lead Temperature (soldering, 10s) ............................... +300°C
(pulsed at 1ms, 10% duty cycle) ................................ 300mA
Note 1: COM_, NO_, and NC_ pins are fault protected. Signals on COM_, NO_, and NC_ exceeding -36V to +36V may damage the
device during power-on conditions. When the power is off, the maximum range is -40V to +40V.
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— ꢂꢃV Dual Supplies
(V+ = +15V, V- = -15V, V = +2.4V, V = +0.8V, GND = 0V, T = T
to T
, unless otherwise noted. Typical values are at
MAX
IH
IL
A
MIN
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
T
MIN
TYP
MAX
UNITS
A
ANALOG SWITCH
V
,
COM_
, V
Fault-Free Analog Signal Range
On-Resistance
E
V-
V+
V
Ω
V
NO_ NC_
+25°C
8
10
13
I
V
= 10mA;
COM_
R
ON
, V
=
10V
NO_ NC_
E
+25°C
0.05
0.25
0.5
0.75
1
On-Resistance Match Between
Channels (Note 4)
I
V
= 10mA;
COM_
∆R
Ω
ON
, V
NO_ NC_
=
10V
E
+25°C
On-Resistance Flatness
(Note 5)
I
V
= 10mA;
COM_
R
Ω
FLAT(ON)
, V
NO_ NC_
=
5V, 0V
E
1.25
+1
+25°C
-1
-60
-1
NO_, NC_ Off-Leakage Current
(Note 6)
I
I
,
V
V
=
COM_
, V
NO_ NC_
10V;
= 10V
NO_(OFF)
nA
nA
nA
NC_(OFF)
E
+60
+1
+25°C
COM_ Off-Leakage Current
(Note 6)
V
V
=
10V;
= 10V
COM_
I
COM_(OFF)
, V
NO_ NC_
E
-60
-2
+60
+2
+25°C
COM_ On-Leakage Current
(Note 6)
V
V
= 10V;
COM_
I
COM_(ON)
, V
NO_ NC_
= 10V or floating
E
-60
+60
FAULT
V+ = +15V, V- = -15V
V+ = 0V, V- = -15V
V+ = V- = 0V
E
-36
-36
-40
-1
+36
+36
+40
+1
Fault-Protected Analog Signal
Range
V
,
COM_
E
V
V
I
V
NO_, NC_
E
+25°C
NO_ or NC_ Off-Leakage
Current (Note 6)
,
V
, V
NO_ NC_
= 36V; V+ = +15V,
NO_(OFF)
µA
µA
I
0V; V- = -15V
NC_(OFF)
E
-10
-1
+10
+1
+25°C
COM_ Off-Leakage Current
(Note 6)
V
=
COM_
36V; V+ = +15V, 0V;
I
COM_(OFF)
V- = -15V
E
-10
+10
2
_______________________________________________________________________________________
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
ELECTRICAL CHARACTERISTICS— 15V Dual Supplies (continued)
(V+ = +15V, V- = -15V, V = +2.4V, V = +0.8V, GND = 0V, T = T
to T
, unless otherwise noted. Typical values are at
MAX
IH
IL
A
MIN
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
, V = 40V; V+ = V- = 0V
NO_ NC_
T
MIN
-1
TYP
MAX
+1
UNITS
A
+25°C
NO_ or NC_ Leakage Current
(Note 6)
I
, I
V
V
µA
NO_ NC_
E
-10
+10
+25°C
-1
+1
COM_ Leakage Current
(Note 6)
I
=
COM_
40V; V+ = V- = 0V
µA
V
COM_
E
E
-10
+10
Fault-Trip Threshold
V- - 0.4
V+ + 0.4
Fault Response Time
t
V
V
, V
=
=
36V; R = 300Ω
E
E
600
1
ns
µs
RES
NO_ NC_
L
Fault Recovery Time
t
, V
NO_ NC_
36V; R = 300Ω
L
REC
SWITCH DYNAMICS
+25°C
= 10V, R = 300Ω,
NC_ L
115
70
225
275
185
235
V
or V
NO_
Turn-On Time
Turn-Off Time
t
ns
ns
ns
pC
ON
OFF
BBM
Q
C = 35pF, Figure 2
L
E
+25°C
= 10V, R = 300Ω,
NC_ L
V
or V
NO_
t
C = 35pF, Figure 2
L
E
+25°C
= 10V, R = 100Ω,
NC_ L
5
2
45
Break-Before-Make Time Delay
(MAX314F Only) (Note 7)
V
or V
NO_
t
C = 10pF, Figure 3
L
E
V
= 0V, R = 0Ω, C = 1nF,
GEN L
GEN
Charge Injection
+25°C
70
Figure 4
NO_ or NC_ Off-Capacitance
COM_ Off-Capacitance
COM_ On-Capacitance
C
f = 1MHz, Figure 5
f = 1MHz, Figure 5
f = 1MHz, Figure 5
+25°C
+25°C
+25°C
20
20
43
pF
pF
pF
N_(OFF)
C
COM_(OFF)
C
COM_(ON)
f = 1MHz, R = 50Ω, C = 15pF,
L
L
Off-Isolation (Note 8)
V
+25°C
+25°C
-55
dB
dB
ISO
P
= 0dBm, Figure 6
IN
Channel-to-Channel Crosstalk
(Note 9)
f = 1MHz, R = 50Ω, C = 15pF,
L
L
V
-104
CT
P
= 0dBm, Figure 6
IN
LOGIC INPUT
Input Logic High
Input Logic Low
V
E
E
E
2.4
-1
V
V
IH
V
0.8
+1
IL
Input Leakage Current
POWER SUPPLY
Power-Supply Range
I
IN
V
= 0V or V+
µA
IN_
V+, V-
I+
E
4.5
20
500
700
250
350
V
+25°C
340
140
All V
All V
= +5V, V
= 0V
COM_
IN_
IN_
E
V+ Supply Current
µA
+25°C
= 0V or V+, V
= 0V
COM_
E
_______________________________________________________________________________________
3
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
ELECTRICAL CHARACTERISTICS— 15V Dual Supplies (continued)
(V+ = +15V, V- = -15V, V = +2.4V, V = +0.8V, GND = 0V, T = T
to T
, unless otherwise noted. Typical values are at
MAX
IH
IL
A
MIN
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
T
MIN
TYP
MAX
200
300
250
350
300
400
1
UNITS
A
+25°C
140
All V
All V
All V
All V
= +5V, V
= 0V
COM_
IN_
IN_
IN_
IN_
E
V- Supply Current
I-
µA
+25°C
140
200
0
= 0V or V+, V
= 0V
COM_
E
+25°C
= +5V, V
= 0V
COM_
E
GND Supply Current
I
µA
GND
+25°C
= 0V or V+, V
= 0V
COM_
E
10
ELECTRICAL CHARACTERISTICS—Single +12V Supply
(V+ = +12V, V- = 0V, V = +2.4V, V = +0.8V, GND = 0V, T = T
to T
, unless otherwise noted. Typical values are at
MAX
IH
IL
A
MIN
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
T
MIN
TYP
MAX
UNITS
A
ANALOG SWITCH
V
,
COM_
, V
Fault-Free Analog Signal Range
E
0
V+
V
Ω
Ω
Ω
V
NO_ NC_
+25°C
E
16
0.4
3
25
30
1.5
2
I
V
= 10mA;
COM_
On-Resistance
R
ON
, V
NO_ NC_
= +10V
+25°C
E
On-Resistance Match Between
Channels (Note 4)
I
V
= 10mA;
COM_
∆R
ON
, V
NO_ NC_
= +10V
+25°C
6
I
V
= 10mA;
COM_
On-Resistance Flatness
R
FLAT(ON)
, V
NO_ NC_
= +2V, +6V, +10V
E
7
+25°C
E
-1
-60
-1
+1
+60
+1
+60
NO_, NC_ Off-Leakage Current
(Note 6)
I
I
,
V
V
= +1V, +10V;
COM_
NO_(OFF)
nA
nA
, V
NO_ NC_
= +10V, +1V
NC_(OFF)
+25°C
COM_ Off-Leakage Current
(Note 6)
V
V
= +1V, +10V;
COM_
I
COM_(OFF)
, V
NO_ NC_
= +10V, +1V
E
-60
V
V
= +1V, +10V;
COM_
+25°C
-2
+2
COM_ On-Leakage Current
(Note 6)
, V
= +1V, +10V,
I
nA
NO_ NC_
COM_(ON)
E
-60
+60
or floating
FAULT
V+ = +12V, V- = 0V
NO_ NC_ V+ = V- = 0V
E
-36
-40
-1
+36
+40
+1
Fault-Protected Analog
Signal Range
V
,
COM_
, V
V
V
E
+25°C
E
NO_ or NC_ Off-Leakage
Current (Note 6)
I
,
V
, V
NO_ NC_
=
36V; V+ = +12V;
NO_(OFF)
µA
µA
I
V- = 0V
NC_(OFF)
-10
-1
+10
+1
+25°C
E
COM_ Off-Leakage Current
(Note 6)
V
, V
=
36V; V+ = +12V;
NO_ NC_
I
COM_(OFF)
V- = 0V
-10
-1
+10
+1
+25°C
NO_ or NC_ Leakage Current
(Note 6)
I
, I
V+ = V- = 0V; V , V =
NO_ NC_
40V
µA
NO_ NC_
E
-10
+10
4
_______________________________________________________________________________________
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
ELECTRICAL CHARACTERISTICS—Single +12V Supply (continued)
(V+ = +12V, V- = 0V, V = +2.4V, V = +0.8V, GND = 0V, T = T
to T
, unless otherwise noted. Typical values are at
MAX
IH
IL
A
MIN
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
V+ = V- = 0V; V , V
T
MIN
-1
TYP
MAX
+1
UNITS
A
+25°C
COM_ Leakage Current
(Note 6)
I
=
40V
µA
COM_
NO_ NC_
E
E
E
-10
+10
Fault Response Time
Fault Recovery Time
SWITCH DYNAMICS
t
V
V
, V
= +36V; R = 300Ω
200
1
ns
µs
RES
NO_ NC_
L
t
, V
= +36V; R = 300Ω
REC
NO_ NC_ L
+25°C
= +10V, R = 300Ω,
NC_ L
140
75
325
425
175
225
V
or V
NO_
Turn-On Time
Turn-Off Time
t
ns
ns
ns
pC
ON
C = 35pF, Figure 2
L
E
+25°C
= +10V, R = 300Ω,
NC_ L
V
or V
NO_
t
OFF
C = 35pF, Figure 2
L
E
+25°C
= +10V, R = 100Ω,
NC_ L
10
5
65
Break-Before-Make Time Delay
(MAX314F Only) (Note 6)
V
or V
NO_
t
BBM
Q
C = 10pF, Figure 3
L
E
V
= 0V, R = 0Ω, C = 1nF,
GEN L
GEN
Charge Injection
+25°C
-10
Figure 4
LOGIC INPUT
Input Logic High
Input Logic Low
V
E
E
2.4
-1
V
V
IH
V
0.8
+1
IL
Input Leakage Current
(Note 6)
I
IN
V
= 0V or V+
IN_
E
µA
POWER SUPPLY
Power-Supply Range
V+
I+
E
+9
+36
300
400
150
250
V
+25°C
160
70
All V
All V
= +5V, V
= +6V
COM_
IN_
IN_
E
V+ Supply Current
µA
+25°C
= 0V or V+, V
= +6V
COM_
E
Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3: Electrical specifications at -40°C are guaranteed by design and not production tested.
Note 4: ∆R
= R
- R
ON
ON(MAX) ON(MIN).
Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance over the specified analog
signal range.
Note 6: Single-supply leakage parameters are guaranteed by testing with dual supplies at the maximum rated temperature.
Note 7: Guaranteed by design.
Note 8: Off-isolation = 20 log10 [V /(V
COM NC
or V )], V
or V
= output, V
= input to off switch.
NO
NC
NO
COM
Note 9: Between any two switches.
_______________________________________________________________________________________
5
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
Typical Operating Characteristics
(T = +25°C, unless otherwise noted.)
A
ON-RESISTANCE vs. V
AND TEMPERATURE
COM
ON-RESISTANCE vs. V
COM
ON-RESISTANCE vs. V
(SINGLE SUPPLY)
COM
(DUAL SUPPLIES)
(DUAL SUPPLIES)
25
15
12
9
30
25
20
15
10
5
V+ = +9V
V- = 0V
V+ = +15V
V- = -15V
V+ = +5V
V- = -5V
20
V+ = +12V
V- = 0V
V+ = +10V
V- = -10V
T
= +85°C
= +25°C
A
V+ = +15V
V- = 0V
15
V+ = +15V
V+ = +24V
V- = 0V
T
A
V- = -15V
10
T
= -40°C
6
A
5
3
V+ = +28V
V- = 0V
V+ = +20V
V+ = +36V
V- = 0V
V- = -20V
0
0
0
-20 -15 -10 -5
0
5
10 15 20
-15
-10
-5
0
5
10
15
0
6
12
18
24
30
36
V
(V)
V
(V)
COM
V
(V)
COM
COM
ON-RESISTANCE vs. V
AND TEMPERATURE
COM
ON/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
CHARGE INJECTION vs. V
(SINGLE SUPPLY)
COM
10,000
1000
100
10
200
25
20
15
10
5
DUAL SUPPLIES: 15V
I
COM(ON)
150
100
50
T
= +85°C
A
T
= +25°C
= -40°C
A
I
I
,
T
NO(OFF)
NC(OFF)
A
I
COM(OFF)
1
0
SINGLE SUPPLY: +12V
0.1
-50
-100
V+ = +12V
V- = 0V
DUAL SUPPLIES:
V+ = +15V, V- = -15V
0.01
0
-40
-15
10
35
60
85
-15
-10
-5
0
5
10
15
0
2
4
6
8
10
12
TEMPERATURE (°C)
V
(V)
V
(V)
COM
COM
TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE (DUAL SUPPLIES)
LOGIC-LEVEL THRESHOLD VOLTAGE
vs. SUPPLY VOLTAGE
SUPPLY CURRENT vs. TEMPERATURE
3.0
2.5
2.0
1.5
1.0
500
400
300
200
100
0
500
400
300
200
100
0
DUAL SUPPLIES:
V+ = +15V, V- = -15V, V = +5V
IN_
I+
DUAL SUPPLIES
t
ON
t
SINGLE SUPPLY
OFF
I-
-100
-200
-300
I
GND
5
10
15
20
0
5
10 15 20 25 30 35 40
SUPPLY VOLTAGE (V)
-40
-15
10
35
60
85
SUPPLY VOLTAGE (V+, V-)
TEMPERATURE (°C)
6
_______________________________________________________________________________________
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
Typical Operating Characteristics (continued)
(T = +25°C, unless otherwise noted.)
A
TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE (SINGLE SUPPLY)
TURN-ON/TURN-OFF TIME
vs. TEMPERATURE (DUAL SUPPLIES)
TURN-ON/TURN-OFF TIME
vs. TEMPERATURE (SINGLE SUPPLY)
200
160
120
80
250
200
150
100
50
200
160
120
80
V+ = +12V, V- = 0V
t
ON
t
ON
t
OFF
t
t
ON
OFF
40
40
t
OFF
DUAL SUPPLIES: 15V
V- = GND
0
0
0
9
18
27
36
-40
-15
10
35
60
85
-40
-15
10
35
60
85
SUPPLY VOLTAGE (V+)
TEMPERATURE (°C)
TEMPERATURE (°C)
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
FAULT CURRENT vs. FAULT VOLTAGE
(DUAL SUPPLIES)
FREQUENCY RESPONSE
0.01
0.001
20
0
200
150
100
50
15V DUAL SUPPLIES:
DUAL SUPPLIES:
V+ = +15V, V- = -15V
V+ = +15V, V- = -15V
IN = OUT = 600Ω, V = 5V
P-P
ON-RESPONSE
OFF-ISOLATION
-20
-40
-60
-80
0
-50
-100
-150
-200
-100
-120
FOR |V
| < V
COM
,
L
COM
I
SUPPLY
CROSSTALK
= V
/R
COM
0.0001
10
100
1k
10k
-60
-40
-20
0
20
40
60
0.001 0.01
0.1
1
10
100 1000
FREQUENCY (Hz)
V
(V)
FREQUENCY (MHz)
COM
FAULT CURRENT vs. FAULT VOLTAGE
(SINGLE SUPPLY)
200
150
100
50
+12V SINGLE SUPPLY
0
-50
-100
-150
-200
FOR 0V < V
I
< V
= V
,
L
COM
COM
SUPPLY
/R
COM
-60
-40
-20
0
20
40
60
V
(V)
COM
_______________________________________________________________________________________
7
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
Typical Operating Characteristics (continued)
(T = +25°C, unless otherwise noted.)
A
FAULT RECOVERY TIME (POSITIVE INPUT)
INPUT OVERVOLTAGE vs. OUTPUT
MAX312F/13F/14F toc18
MAX312F/13F/14F toc17
+25V
V
, V
NO_ NC_
INPUT
+25V
V
, V
NO_ NC_
INPUT
GND
+5V
GND
-25V
+15V
+5V
V
COM_
OUTPUT
GND
GND
-15V
1µs/div
2ms/div
FAULT RESPONSE TIME
(POSITIVE INPUT)
FAULT RECOVERY TIME
(NEGATIVE INPUT)
MAX312F/13F/14F toc20
MAX312F/13F/14F toc19
GND
-5V
V
, V
NO_ NC_
INPUT
V
, V
NO_ NC_
INPUT
10V/div
-25V
GND
GND
V
COM_
OUTPUT
V
COM_
OUTPUT
-5V
10V/div
GND
400ns/div
1µs/div
FAULT RESPONSE TIME
(NEGATIVE INPUT)
FAULT RESPONSE
(V+ = 0V, V- = -15V)
MAX312F/13F/14F toc21
MAX312F/13F/14F toc22 +25V
V
, V
NO_ NC_
INPUT
GND
V
, V
NO_ NC_
INPUT
GND
10V/div
-25V
GND
GND
V
COM_
OUTPUT
10V/div
V
COM_
OUTPUT
500mV/div
1µs/div
200µs/div
8
_______________________________________________________________________________________
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
Pin Description
PIN
NAME
FUNCTION
Logic-Control Digital Inputs
Analog Switch Common Terminals
MAX312F
MAX313F
1, 16, 9, 8
MAX314F
1, 16, 9, 8
1, 16, 9, 8
IN1, IN2, IN3, IN4
COM1, COM2, COM3,
COM4
2, 15, 10, 7
2, 15, 10, 7
2, 15, 10, 7
3, 14, 11, 6
—
—
—
NC1, NC2, NC3, NC4 Analog Switch Normally Closed Terminals
NO1, NO2, NO3, NO4 Analog Switch Normally Open Terminals
—
—
—
3, 14, 11, 6
—
—
3, 6
NO1, NO4
NC2, NC3
Analog Switch Normally Open Terminals
Analog Switch Normally Closed Terminals
14, 11
Negative-Supply Voltage Input. Connect to GND for single-
supply operation. Bypass with a 0.1µF capacitor to GND.
4
4
4
V-
5
5
5
GND
N.C.
Ground. Connect to digital ground.
12
12
12
No Connection. Not internally connected.
Positive-Supply Voltage Input. Bypass with a 0.1µF capacitor
to GND.
13
13
13
V+
direct replacement in existing printed circuit boards
since the NO_, NC_, and COM_ pins of each switch are
fault protected.
Detailed Description
The MAX312F/MAX313F/MAX314F are fault-protected
CMOS analog switches with unique operation and
construction. These switches differ considerably from
traditional fault-protection switches, with several advan-
tages. First, they are constructed with two parallel
FETs, allowing very low on-resistance when the switch
is on. Second, they allow signals on the NO_ or NC_
pins that are within, or slightly beyond, the supply rails
to be passed through the switch to the COM_ terminal
(or vice versa), allowing true rail-to-rail signal operation.
Third, the MAX312F/MAX313F/MAX314F have the same
fault-protection performance on any of the NO_, NC_,
or COM_ switch inputs. Operation is identical for both
fault polarities. The fault protection extends to 36V
from GND with 15V supplies.
Internal Construction
Internal construction is shown in Figure 1, with the ana-
log signal paths shown in bold. A single NO switch is
shown. The NC configuration is identical except the
logic-level translator becomes an inverter. The analog
switch is formed by the parallel combination of N-chan-
nel FET (N1) and P-channel FET (P1), which are driven
on and off simultaneously according to the input fault
condition and the logic-level state.
Normal Operation
Two comparators continuously compare the voltage on
the COM_, NO_, and NC_ pins with V+ and V-. When
the signal on COM_, NO_, or NC_ is between V+ and
V-, the switch acts normally, with FETs N1 and P1 turn-
ing on and off in response to IN_ signals. The parallel
combination of N1 and P1 forms a low-value resistor
between NO_ (or NC_) and COM_ so that signals pass
equally well in either direction.
During a fault condition, the particular overvoltage input
(COM_, NO_, NC_) pin becomes high impedance
regardless of the switch state or load resistance. When
power is removed, the fault protection is still in effect. In
this case, the COM_, NO_, or NC_ terminals are a virtu-
al open circuit. The fault can be up to 40V with power
off. The switches turn off when V+ is not powered,
regardless of V-.
Positive Fault Condition
When the signal on NO_ (or NC_) and COM_ exceeds
V+, the high-fault comparator output is high, turning off
FETs N1 and P1. This makes the NO_ (or NC_) and
COM_ pins high impedance regardless of the switch
Pin Compatibility
These switches have identical pinouts to common non-
fault-protected CMOS switches. They allow for carefree
_______________________________________________________________________________________
9
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
state. If the switch state is off, all FETs are turned off and
Ground
There is no galvanic connection between the analog
signal 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.
However, the potential of the analog signals must be
defined or at least limited with respect to GND.
both NO_ (or NC_) and COM_ are high impedance.
Negative Fault Condition
When the signal on NO_ (or NC_) and COM_ exceeds V-,
the low-fault comparator output is high, turning off FETs
N1 and P1. This makes the NO_ (or NC_) and COM_ pins
high impedance regardless of the switch state. If the
switch state is off, all FETs are turned off and both NO_
(or NC_) and COM_ are high impedance.
V+ and GND power the internal logic and logic-level
translators and set the input logic thresholds. The logic-
level translators convert the logic levels to switched V+
and V- signals to drive the gates of the analog switch-
es. This drive signal is the only connection between the
power supplies and the analog signals.
Transient Fault Response and Recovery
When a fast rise-time and fall-time transient on NO_,
NC_, or COM_ exceeds V+ or V-, the output follows the
input to the supply rail with only a few nanoseconds
delay. This delay is due to the switch on-resistance and
circuit capacitance to ground. When the input transient
returns to within the supply rails, however, there is a
longer output recovery time delay. For positive faults,
the recovery time is typically 1µs. For negative faults,
the recovery time is typically 0.6µs. These values
depend on the output resistance and capacitance, and
are not production tested or guaranteed. The delays
are not dependent on the fault amplitude. Higher load
resistance and capacitance increase recovery times.
Bipolar Supplies
The MAX312F/MAX313F/MAX314F operate with bipolar
supplies between 4.5V and 20V. The V+ and V- sup-
plies need not be symmetrical, but their difference can-
not exceed the absolute maximum rating of 44V.
Single Supply
The MAX312F/MAX313F/MAX314F operate from a sin-
gle supply between +9V and +36V when V- is connect-
ed to GND.
Fault-Protection Voltage and Power Off
The maximum fault voltage on the NO_ (or NC_) and
COM_ pins is 36V with power applied and 40V with
power off.
Ordering Information (continued)
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 SO
Failure Modes
Exceeding the fault-protection voltage limits on NO_,
NC_, or COM_, even for very short periods, can cause
the device to fail (see the Absolute Maximum Ratings).
The failure modes may not be obvious, and failure in
one switch may or may not affect other switches in the
same package.
MAX313FESE
MAX313FEPE
MAX314FESE
MAX314FEPE
16 Plastic DIP
16 SO
16 Plastic DIP
Chip Information
TRANSISTOR COUNT: 251
PROCESS: CMOS
SUBSTRATE CONNECTED TO: V+
10 ______________________________________________________________________________________
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
Test Circuits/Timing Diagrams
NORMALLY OPEN SWITCH CONSTRUCTION
V+
HIGH
FAULT
P1
NO_
IN_
COM_
N1
LOW
FAULT
ON
MAX312F
MAX313F
MAX314F
GND
V-
ESD DIODE
Figure 1. Functional Diagram
V+
V+
MAX312F
3V
0V
V
V
50%
90%
NO_ OR NC_
IN_
10V
MAX313F
MAX314F
V
10V
IN_
V
90%
OUT
COM_
V-
OUT
GND
R
C
L
L
0V
t
V-
OFF
t
ON
V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.
Figure 2. Switch Turn-On/Turn-Off Times
______________________________________________________________________________________ 11
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
Test Circuits/Timing Diagrams (continued)
V+
V+
t < 5ns
F
3V
0V
t
< 5ns
V
R
IN_
NO_
NC_
IN_
IN_
10V
50%
V
IN_
MAX314F
COM_
COM_
V , V
NO_ NC_
V
OUT
90%
GND
V-
R
C
L
L
V
OUT
V-
0V
t
BBM
V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.
Figure 3. MAX314F Break-Before-Make Interval
V+
V+
R
GEN
V
IN_
IN_
NO_ OR NC_
3V
0V
V
GEN
V
IN_
MAX312F
MAX313F
MAX314F
V
OUT
V
COM_
OUT
∆V
OUT
GND
V-
C
L
V-
∆V
IS THE MEASURED VOLTAGE DUE TO CHARGE-
OUT
TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF.
V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.
Q = ∆V
x C
OUT
L
Figure 4. Charge Injection
V+
V+
NO_
NC_
V+
MAX312F
MAX313F
MAX314F
IN_
1MHz
CAPACITANCE
ANALYZER
COM_
V-
GND
V-
V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.
Figure 5. COM_, NO_, NC_ Capacitance
12 ______________________________________________________________________________________
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
Test Circuits/Timing Diagrams (continued)
50Ω RESISTOR
ONLY NEEDED
FOR CROSSTALK
AND ISOLATION
V+
V+
0.1µF
NETWORK
ANALYZER
V
IN
50Ω
50Ω
COM_
3.0V
MAX312F
MAX313F
MAX314F
50Ω
IN_
V
OUT
MEAS
REF
NO_, NC_
V-
GND
50Ω
50Ω
0.1µF
V-
MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AND OPEN AT SOCKET TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN COM_ AND OFF NO_ OR NC_ TERMINALS.
ON-RESPONSE IS MEASURED BETWEEN COM_ AND ON NO_ OR NC_ TERMINALS.
CROSSTALK IS MEASURED BETWEEN COM_ TERMINALS WITH ALL SWITCHES ON.
V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.
Figure 6. Frequency Response, Off-Isolation, and Crosstalk
Pin Configurations (continued)
TOP VIEW
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1
16
15
14
13
12
11
10
9
IN1
IN1
IN2
IN2
2
3
4
5
6
7
8
COM2
NO2
V+
COM2
NC2
V+
COM1
NO1
V-
COM1
NO1
V-
MAX314F
MAX313F
GND
NO4
GND
NO4
N.C.
NO3
COM3
IN3
N.C.
NC3
COM3
IN3
COM4
IN4
COM4
IN4
DIP/SO
DIP/SO
MAX313F
MAX314F
SWITCHES SWITCHES
LOGIC
SWITCH
LOGIC
1, 4
2, 3
0
1
OFF
ON
0
1
OFF
ON
ON
OFF
N.C. = NOT CONNECTED. SWITCHES SHOWN FOR LOGIC 0 INPUT.
ALL SWITCHES ARE OFF WITH POWER REMOVED.
______________________________________________________________________________________ 13
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
14 ______________________________________________________________________________________
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15
© 2003 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
相关型号：
MAX313L
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