Datasheet

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General Description

The MAX4511/MAX4512/MAX4513 are quad, single-

pole/single-throw (SPST), fault-protected analog switch-

es. They are pin-compatible with the industry-standard

nonprotected DG201/DG202/DG213. These new switch-

es feature fault-protected inputs and Rail-to-Rail

signal

handling capability. The normally open (NO_) and

normally closed (NC_) terminals are protected from

overvoltage faults up to 36V during power-up or

power-down. During a fault condition, the NO_ or NC_

terminal becomes an open circuit and only nanoamperes

of leakage current flow from the source, but the switch

output (COM_) furnishes up to 10mA of the appropriate

polarity supply voltage to the load. This ensures unam-

biguous rail-to-rail outputs when a fault begins and ends.

On-resistance is 175Ω max and is matched between

switches to 10Ω max. The off-leakage current is only

0.5nA at +25°C and 10nA at +85°C.

The MAX4511 has four normally closed switches. The

MAX4512 has four normally open switches. The

MAX4513 has two normally closed and two normally

open switches.

These CMOS switches can operate with dual power

supplies ranging from ±4.5V to ±18V or a single supply

between +9V and +36V.

All digital inputs have +0.8V and +2.4V logic thresh-

olds, ensuring both TTL- and CMOS-logic compatibility

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

Applications

Features

♦ ±40V Fault Protection with Power Off

±36V Fault Protection with ±15V Supplies

♦ All Switches Off with Power Off

♦ Rail-to-Rail Signal Handling

♦ Output Clamped to Appropriate Supply Voltage

During Fault Condition; No Transition Glitch

♦ 175Ω max Signal Paths with ±15V Supplies

♦ No Power-Supply Sequencing Required

♦ ±4.5V to ±18V Dual Supplies

+9V to +36V Single Supply

♦ Low Power Consumption, <2mW

♦ Four Separately Controlled SPST Switches

♦ Pin-Compatible with Industry-Standard

DG411/DG412/DG413, DG201/DG202/DG213

♦ TTL- and CMOS-Compatible Logic Inputs with

Single +9V to +15V or ±15V Supplies

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.

MAX4511/MAX4512/MAX4513

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

SPST Analog Switches

________________________________________________________________ Maxim Integrated Products 1

TOP VIEW

DIP/SO/TSSOP

MAX4511

LOGIC SWITCH

OFF

IN2

COM2

NC2

V+

V-

NC1

COM1

IN1

MAX4511

N.C.

NC3

COM3

IN3

IN4

COM4

NC4

GND

N.C. = NOT CONNECTED

SWITCHES SHOWN FOR LOGIC "0" INPUT.

ALL SWITCHES ARE OFF WITH POWER REMOVED.

19-4760; Rev 1; 8/02

Ordering Information continued at end of data sheet.

*Contact factory for dice specifications.

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

Ordering Information

PART TEMP RANGE PIN-PACKAGE

MAX4511C/D 0°C to +70°C Dice*

MAX4511CPE

0°C to +70°C 16 Plastic DIP

MAX4511CSE 0°C to +70°C 16 Narrow SO

Continued at end of data sheet.

MAX4511EPE -40°C to +85°C 16 Plastic DIP

MAX4511MJE -55°C to +125°C 16 CERDIP

MAX4511ESE -40°C to +85°C 16 Narrow SO

Pin Configurations/

Functional Diagrams/Truth Tables

ATE Equipment

Data Acquisition

Industrial and Process-

Control Systems

Avionics

Redundant/Backup

Systems

MAX4511CUE 0°C to +70°C 16 TSSOP

MAX4511EUE -40°C to +85°C 16 TSSOP

Summary of content (17 pages)

PAGE 1
9-4760; Rev 1; 8/02 Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches On-resistance is 175Ω max and is matched between switches to 10Ω max. The off-leakage current is only 0.5nA at +25°C and 10nA at +85°C. The MAX4511 has four normally closed switches. The MAX4512 has four normally open switches. The MAX4513 has two normally closed and two normally open switches. These CMOS switches can operate with dual power supplies ranging from ±4.5V to ±18V or a single supply between +9V and +36V.
PAGE 2
ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to GND) V+ ........................................................................-0.3V to +44.0V V- .........................................................................-44.0V to +0.3V V+ to V-................................................................-0.3V to +44.0V COM_, IN_ (Note 1) ..............................(V- - 0.3V) to (V+ + 0.3V) NC_, NO_ (Note 2)..................................(V+ - 36V) to (V- + 36V) NC_, NO_ to COM_ ..................
PAGE 3
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches (V+ = +15V, V- = -15V, GND = 0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS TA MIN TYP (Note 3) MAX UNITS FAULT (V+ = +15V, V- = -15V, unless otherwise noted.
PAGE 4
MAX4511/MAX4512/MAX4513 Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches ELECTRICAL CHARACTERISTICS—Dual Supplies (continued) (V+ = +15V, V- = -15V, 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+ = +10.8V to +13.2V, V- = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 6
MAX4511/MAX4512/MAX4513 Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches ELECTRICAL CHARACTERISTICS—Single +12V Supply (continued) (V+ = +10.8V to +13.2V, V- = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS TA MIN TYP MAX (Note 3) UNITS LOGIC INPUT IN_ Input Logic Threshold High VIN_H C, E, M IN_ Input Logic Threshold Low VIN_L C, E, M 0.8 1.8 +25°C -1 0.
PAGE 7
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches SWITCH ON-RESISTANCE vs. VCOM AND TEMPERATURE (DUAL SUPPLIES) 200 150 100 V+ = +15V V- = -15V 50 V+ = +20V V- = -20V 120 100 80 60 TA = -55°C -15 -10 -5 0 5 10 15 40 V- = 0 V+ = +5V V+ = +15V V+ = +20V V+ = +24V V+ = +12V V+ = +30V V+ = +15V V- = -15V 100 -15 20 -10 -5 0 5 10 15 0 5 10 15 20 25 VCOM (V) VCOM (V) VCOM (V) SWITCH ON-RESISTANCE vs.
PAGE 8
Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) LOGIC-LEVEL THRESHOLD vs. V+ FREQUENCY RESPONSE -20 2.0 80 60 OFF LOSS LOSS (dB) -40 1.5 1.0 40 -50 20 -60 0 -70 -20 -80 -40 ON PHASE -90 0 -60 -100 -80 -110 -100 -120 0 5 10 15 20 25 30 35 V+ (V) 120 100 ON LOSS -30 0.5 -120 0.01 0.
PAGE 9
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches MAX4511/MAX4512/MAX4513 NORMALLY OPEN SWITCH CONSTRUCTION V+ P2 HIGH FAULT P1 COM_ NO_ (NC_) N1 LOW FAULT ON IN_ GND N2 V-ESD DIODE NC SWITCH Figure 1. Block Diagram Overview of MAX4511/MAX4512/MAX4513 The MAX4511/MAX4512/MAX4513 differ considerably from traditional fault-protection switches, with several advantages. First, they are constructed with two parallel FETs, allowing very low on-resistance when the switch is on.
PAGE 10
MAX4511/MAX4512/MAX4513 Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches (NO) switch is shown; the normally closed (NC) configuration is identical except the logic-level translator becomes an inverter. The analog switch is formed by the parallel combination of N-channel FET N1 and Pchannel FET P1, which are driven on and off simultaneously according to the input fault condition and the logic-level state.
PAGE 11
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches Single Supply The MAX4511/MAX4512/MAX4513 operate from a single supply between +9V and +36V when V- is connected to GND. High-Frequency Performance 20MHz, the on-response has several 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 capacitor and passes higher frequencies with less attenuation.
PAGE 12
MAX4511/MAX4512/MAX4513 Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches Test Circuits/Timing Diagrams (continued) V+ V+ V+ VIN_ IN_ 50Ω NO_ OR NC_ VIN_ 0V MAX4511 MAX4512 MAX4513 VOUT COM_ GND ∆ VOUT VOUT CL 1000pF V- V- ∆ VOUT IS THE MEASURED VOLTAGE DUE TO CHARGETRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF. Q = ∆ VOUT x CL V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION. Figure 4.
PAGE 13
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches V+ 10nF NETWORK ANALYZER V+ VIN 50Ω 50Ω COM_ MAX4511 MAX4512 MAX4513 IN_ ADDRESS SELECT VOUT NO_, NC_ V- GND MEAS. REF. 50Ω OFF ISOLATION = 20 log VOUT VIN ON LOSS = 20 log VOUT VIN CROSSTALK = 20 log VOUT VIN 50Ω 10nF V- MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT SOCKET TERMINALS. OFF ISOLATION IS MEASURED BETWEEN COM_ AND “OFF” NO_ OR NC_ TERMINALS. ON LOSS IS MEASURED BETWEEN COM_ AND “ON” NO_ OR NC_ TERMINALS.
PAGE 14
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches MAX4511/MAX4512/MAX4513 Chip Topographies MAX4511 NC1 COM1 IN1 IN2 COM2 NC2 V+ V- 0.138" (3.
PAGE 15
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches N E H INCHES MILLIMETERS MAX MIN 0.069 0.053 0.010 0.004 0.014 0.019 0.007 0.010 0.050 BSC 0.150 0.157 0.228 0.244 0.016 0.050 MAX MIN 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 1.27 BSC 3.80 4.00 5.80 6.20 0.40 SOICN .EPS DIM A A1 B C e E H L 1.27 VARIATIONS: 1 INCHES TOP VIEW DIM D D D MIN 0.189 0.337 0.386 MAX 0.197 0.344 0.394 MILLIMETERS MIN 4.80 8.55 9.80 MAX 5.00 8.75 10.
PAGE 16
Package Information (continued) 16 ______________________________________________________________________________________ CDIPS.EPS (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 17
Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches TSSOP4.40mm.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.