Datasheet

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General Description

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 ±36V with power on

and up to ±40V with power off. During 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 10Ω (max) and is matched

between switches to 0.5Ω (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 ±4.5V to ±20V or a single supply between +9V

and +36V. All digital inputs have +0.8V and +2.4V logic

thresholds, ensuring both TTL and CMOS logic com-

patibility when using ±15V or a single +12V supply.

For supply voltages of ±5V, +5V, and +3V, refer to the

MAX4711/MAX4712/MAX4713 data sheet.

Applications

Communications Systems

Signal Routing

Test Equipment

Data Acquisition

Industrial and Process Control Systems

Avionics

Redundant/Backup Systems

ATE

Hot Swap

Features

♦ 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

♦ ±40V Fault Protection with Power Off

♦ ±36V Fault Protection with ±15V Supplies

♦ Control Line Fault Protection from

V- - 0.3V to V- + 40V

♦ Pin Compatible with Industry-Standard

DG411/DG412/DG413

♦ 600ns (typ) Fault Response Time

♦ 10Ω (max) R

with ±15V Supplies

♦ ±4.5V to ±20V Dual Supplies

♦ +9V to +36V Single Supply

♦ TTL- and CMOS-Compatible Logic Inputs with

±15V or Single +9V to +15V Supplies

MAX312F/MAX313F/MAX314F

Quad, Rail-to-Rail, Fault-Protected,

SPST Analog Switches

19-2737; Rev 0; 1/03

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.

Ordering Information

PART TEMP RANGE PIN-PACKAGE

MAX312FESE

-40°C to +85°C 16 SO

MAX312FEPE

-40°C to +85°C 16 Plastic DIP

N.C. = NOT CONNECTED. SWITCHES SHOWN FOR LOGIC 0 INPUT.

ALL SWITCHES ARE OFF WITH POWER REMOVED.

TOP VIEW

DIP/SO

MAX312F

LOGIC SWITCH

OFF

IN2

COM2

NC2

V+

V-

NC1

COM1

IN1

MAX312F

N.C.

NC3

COM3

IN3

IN4

COM4

NC4

GND

Pin Configurations

________________________________________________________________ Maxim Integrated Products 1

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

Pin Configurations continued at end of data sheet.

Functional Diagram appears at end of data sheet.

Ordering Information continued at end of data sheet.

Summary of content (15 pages)

PAGE 1
9-2737; Rev 0; 1/03 Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches The MAX312F/MAX313F/MAX314F are quad, singlepole/single-throw (SPST), fault-protected analog switches. They are pin compatible with the industry-standard nonprotected MAX312/MAX313/MAX314. These switches feature fault-protected inputs and Rail-to-Rail signalhandling capability. All analog signal terminals are protected from overvoltage faults up to ±36V with power on and up to ±40V with power off.
PAGE 2
MAX312F/MAX313F/MAX314F Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to GND.) V+ ...........................................................................-0.3V to +44V V- ............................................................................-44V to +0.3V V+ to V-...................................................................-0.3V to +44V IN_ ......................................................... (V- - 0.
PAGE 3
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches (V+ = +15V, V- = -15V, VIH = +2.4V, VIL = +0.8V, GND = 0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 2, 3) PARAMETER NO_ or NC_ Leakage Current (Note 6) COM_ Leakage Current (Note 6) SYMBOL INO_, INC_ ICOM_ CONDITIONS VNO_, VNC_ = ±40V; V+ = V- = 0V VCOM_ = ±40V; V+ = V- = 0V Fault-Trip Threshold TA MIN TYP MAX +25°C -1 +1 E -10 +10 +25°C -1 +1 E -10 +10 E V- - 0.4 V+ + 0.
PAGE 4
MAX312F/MAX313F/MAX314F Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches ELECTRICAL CHARACTERISTICS—±15V Dual Supplies (continued) (V+ = +15V, V- = -15V, VIH = +2.4V, VIL = +0.8V, GND = 0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 5
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches (V+ = +12V, V- = 0V, VIH = +2.4V, VIL = +0.8V, GND = 0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 6
Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) ON-RESISTANCE vs. VCOM AND TEMPERATURE (DUAL SUPPLIES) 12 V+ = +15V V- = -15V TA = +85°C 10 V+ = +9V V- = 0V V+ = +12V V- = 0V V+ = +15V V- = 0V 25 20 9 RON (Ω) 15 V+ = +15V V- = -15V RON (Ω) RON (Ω) V+ = +10V V- = -10V 30 MAX312F/13F/14F toc02 V+ = +5V V- = -5V 20 15 MAX312F/13F/14F toc01 25 ON-RESISTANCE vs. VCOM (SINGLE SUPPLY) TA = +25°C MAX312F/13F/14F toc03 ON-RESISTANCE vs.
PAGE 7
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches 80 150 tON 100 tON 40 160 50 tOFF 27 36 0 -40 -15 10 35 60 85 -40 -15 10 35 60 85 TEMPERATURE (°C) FREQUENCY RESPONSE TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY FAULT CURRENT vs. FAULT VOLTAGE (DUAL SUPPLIES) THD + N (%) ON-RESPONSE -40 OFF-ISOLATION -60 ±15V DUAL SUPPLIES: IN = OUT = 600Ω, VP-P = 5V 0.
PAGE 8
MAX312F/MAX313F/MAX314F Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) FAULT RECOVERY TIME (POSITIVE INPUT) INPUT OVERVOLTAGE vs.
PAGE 9
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches PIN NAME FUNCTION MAX312F MAX313F MAX314F 1, 16, 9, 8 1, 16, 9, 8 1, 16, 9, 8 IN1, IN2, IN3, IN4 2, 15, 10, 7 2, 15, 10, 7 2, 15, 10, 7 COM1, COM2, COM3, COM4 Analog Switch Common Terminals 3, 14, 11, 6 — — NC1, NC2, NC3, NC4 Analog Switch Normally Closed Terminals — 3, 14, 11, 6 — NO1, NO2, NO3, NO4 Analog Switch Normally Open Terminals — — 3, 6 NO1, NO4 Analog Switch Normally Open Terminals — — 14, 11 NC2, NC3 Analo
PAGE 10
MAX312F/MAX313F/MAX314F Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches state. If the switch state is off, all FETs are turned off and 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.
PAGE 11
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches NORMALLY OPEN SWITCH CONSTRUCTION V+ HIGH FAULT P1 NO_ COM_ N1 LOW FAULT ON IN_ MAX312F MAX313F MAX314F GND VESD DIODE Figure 1. Functional Diagram V+ V+ 3V NO_ OR NC_ VIN_ 10V 50% 0V VIN_ MAX312F MAX313F MAX314F COM_ GND V- 10V VOUT 90% 90% VOUT RL CL V- 0V tOFF tON V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION. Figure 2.
PAGE 12
MAX312F/MAX313F/MAX314F Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches Test Circuits/Timing Diagrams (continued) V+ VIN_ IN_ IN_ NO_ NC_ 10V VIN_ MAX314F COM_ VOUT COM_ GND tF < 5ns tR < 5ns 3V V+ V- CL RL 50% 0V VNO_, VNC_ 90% VOUT V- 0V tBBM V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION. Figure 3.
PAGE 13
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches 50Ω RESISTOR ONLY NEEDED FOR CROSSTALK AND ISOLATION V+ 0.1µF NETWORK ANALYZER VIN V+ 50Ω 50Ω COM_ 3.0V IN_ MAX312F MAX313F MAX314F 50Ω VOUT MEAS NO_, NC_ GND V- REF 50Ω 50Ω 0.1µF VMEASUREMENTS 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.
PAGE 14
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.) PDIPN.
PAGE 15
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches 16L SOIC.EPS 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.