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MAX394

Low-Voltage, Quad, SPDT, CMOS Analog Switch

Maxim Integrated 

19-0391; Rev 2; 9/08

Low-Voltage, Quad, SPDT,

CMOS Analog Switch

_______________General Description

The MAX394 is a precision, low-voltage, quad, single-

pole/double-throw (SPDT) analog switch. The four inde-

pendent switches operate with bipolar supplies ranging

from ±2.7V to ±8V, or with a single supply of +2.7V to

+15V. The MAX394 offers low on-resistance (less than

35Ω), guaranteed to match within 2Ω between channels

and to remain flat over the analog signal range (Δ4Ω

max). It also offers break-before-make switching (10ns

typical), with turn-off times less than 75ns and turn-on

times less than 130ns. The MAX394 is ideal for portable

operation since quiescent current runs less than 1µA with

all inputs high or low.

This monolithic, quad switch is fabricated with Maxim’s

low voltage silicon-gate process. Design improvements

guarantee extremely low charge injection (10pC), low

power consumption (10µW), and electrostatic discharge

(ESD) greater than 2000V.

Logic inputs are TTL and CMOS compatible and guaran-

teed over a +0.8V to +2.4V range for supply voltages up

to +8V. When supplies exceed +8V, the inputs are typi-

cally +0.8V to +4V. Logic inputs and switched analog sig-

nals can range anywhere between the supply voltages

without damage.

________________________Applications

Test Equipment

Portable Instruments

Communications Systems Audio Signal Routing

PBX, PABX

Set-Top Boxes

Heads-Up Displays

__________________Pin Configuration

____________________________Features

♦ Low On-Resistance, < 17Ω Typical (35Ω max)

♦ Guaranteed Matched On-Resistance Between

Channels, < 2Ω

♦ Guaranteed Flat On-Resistance over Analog

Signal Range, Δ4Ω Max

♦ Guaranteed Charge Injection < 10pC

♦ Guaranteed Off-Channel Leakage < 2.5nA at +85°C

♦ ESD Guaranteed > 2000V per Method 3015.7

♦ Single-Supply Operation (+2.7V to +15V)

Bipolar-Supply Operation (±2.7V to ±8V)

♦ TTL/CMOS-Logic Compatibility

♦ Rail-to-Rail Analog Signal Handling Capability

♦ Pin Compatible with MAX333, MAX333A

Ordering Information

PART

TEMPERATURE PIN-PACKAGE

MAX394CPP

0°C to +70°C

20 Plastic DIP

MAX394CWP

0°C to +70°C

20 Wide SO

MAX394C/D

0°C to +70°C

Dice*

MAX394EPP

-40°C to +85°C

20 Plastic DIP

MAX394EWP

-40°C to +85°C

20 Wide SO

MAX394EUP

-40°C to +85°C

20 TSSOP

MAX394MJP

-55°C to +85°C

20 CERDIP**

MAX394MWP/PR

-55°C to +125°C

20 Wide SO**

MAX394MWP/PR-T -55°C to +125°C

20 Wide SO**

*Contact factory for dice specifications.

**Contact factory for availability.

Typical Operating Circuit

INPUTS

OUTPUTS

TOP VIEW

IN1 1

NO1 2

COM1 3

NC1 4

V- 5

GND 6

NC2 7

COM2 8

NO2 9

IN2 10

MAX394

20 IN4

19 NO4

18 COM4

17 NC4

16 V+

15 N.C.

14 NC3

13 COM3

12 NO3

11 IN3

DIP/SO/TSSOP

SWITCHES ARE SHOWN WITH LOGIC "0" INPUT

N.C. = NOT INTERNALLY CONNECTED

V1

V1 - V2

V2

OSC

IN

V3

V3 - V4

V4

FLYING CAPACITOR

LEVEL TRANSLATOR

(2-CHANNEL)

________________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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