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General Description

The MAX4621/MAX4622/MAX4623 are precision, dual,

high-speed analog switches. The single-pole/single-

throw (SPST) MAX4621 and double-pole/single-throw

(DPST) MAX4623 dual switches are normally open

(NO). The single-pole/double-throw (SPDT) MAX4622

has two normally closed (NC) and two NO poles. All

three parts offer low 5

Ω on-resistance guaranteed to

match to within 0.5

Ω between channels and to remain

flat over the full analog signal range (

∆0.5Ω max). They

also offer low leakage (<500pA at +25°C, <5nA at

+85°C) and fast switching times (turn-on time <250ns,

turn-off time <200ns).

These analog switches are ideal in low-distortion appli-

cations and are the preferred solution over mechanical

relays in automatic test equipment or applications

where current switching is required. They have low

power requirements, use less board space, and are more

reliable than mechanical relays.

The MAX4621/MAX4622/MAX4623 are pin-compatible

replacements for the DG401/DG403/DG405, respective-

ly, offering improved overall performance. These mono-

lithic switches operate from a single positive supply

(+4.5V to +36V) or with bipolar supplies (±4.5V to ±18V)

while retaining CMOS-logic input compatibility.

Features

o Low On-Resistance: 3

Ω (typ), 5Ω (max)

(0.5

Ω max)

o Guaranteed Break-Before-Make Operation

(MAX4622)

o Guaranteed Off-Channel Leakage <5nA at +85°C

o Single-Supply Operation (+4.5V to +36V)

Bipolar-Supply Operation (±4.5V to ±18V)

o TTL/CMOS-Logic Compatible

o Pin Compatible with DG401/DG403/DG405

Applications

Reed Relay Replacement

Military Radios

Test Equipment

PBX, PABX Systems

Communication Systems

Audio-Signal Routing

Data-Acquisition Systems

Avionics

Dual, 5

________________________________________________________________

Maxim Integrated Products

1

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

NO1

IN1

V-

GND

N.C.

N.C.

N.C.

COM1

TOP VIEW

MAX4621

V+

IN2

NO2

COM2

N.C.

N.C.

N.C.

SO/DIP

MAX4621

LOGIC

SWITCH

0

1

OFF

ON

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

NO1

IN1

V-

GND

NC3

COM3

N.C.

COM1

MAX4622

V+

IN2

NO2

COM2

N.C.

COM4

NC4

SO/DIP

MAX4622

LOGIC

SWITCHES 1, 2

0

1

OFF

ON

SWITCHES 3, 4

ON

OFF

SWITCHES SHOWN FOR LOGIC "0" INPUT

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

NO1

IN1

V-

GND

NO3

COM3

N.C.

COM1

MAX4623

V+

IN2

NO2

COM2

N.C.

COM4

NO4

SO/DIP

MAX4623

LOGIC

SWITCH

0

1

OFF

ON

19-1497; Rev 0; 8/99

PART

MAX4621CSE

MAX4621CPE

0°C to +70°C

0°C to +70°C

TEMP. RANGE

PIN-PACKAGE

16 Narrow SO

16 Plastic DIP

Ordering Information continued at end of data sheet.

Pin Configurations/Functional Diagrams/Truth Tables

Ordering Information

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