_______________General Description

The MAX154/MAX158 are high-speed multi-channel

analog-to-digital converters (ADCs). The MAX154 has

four analog input channels while the MAX158 has eight

channels. Conversion time for both devices is 2.5µs.

The MAX154/MAX158 also feature a 2.5V on-chip refer-

ence, forming a complete high-speed data acquisition

system.

Both converters include a built-in track/hold, eliminating

the need for an external track/hold. The analog input

range is 0V to +5V, although the ADC operates from a

single +5V supply.

Microprocessor interfaces are simplified by the ADC’s

ability to appear as a memory location or I/O port without

the need for external logic. The data outputs use latched,

three-state buffer circuitry to allow direct connection to a

microprocessor data bus or system input port.

________________________Applications

Digital Signal Processing

High-Speed Data Acquisition

Telecommunications

High-Speed Servo Control

Audio Instrumentation

____________________________Features

o One-Chip Data Acquisition System

o Four or Eight Analog Input Channels

o 2.5µs per Channel Conversion Time

o Internal 2.5V Reference

o Built-In Track/Hold Function

o Single +5V Supply Operation

o No External Clock

o New Space-Saving SSOP Package

______________Ordering Information

CMOS High-Speed 8-Bit ADCs with

Multiplexer and Reference

________________________________________________________________

Maxim Integrated Products

1

24

23

22

21

20

19

18

17

1

2

3

4

5

6

7

8

N.C.

A0

A1

AIN1

AIN2

AIN3

AIN4

TOP VIEW

DB7

DB6

DB5

DB4

DB2

DB1

DB0

REF OUT

16

15

14

13

9

10

11

12

CS

RDY

GND

INT

RD

DB3

DIP/SO/SSOP

MAX154

28

27

26

25

24

23

22

21

1

2

3

4

5

6

7

8

AIN7

AIN8

A0

AIN3

AIN4

AIN5

AIN6

A1

A2

DB7

DB6

DB0

REF OUT

AIN1

AIN2

20

19

18

17

9

10

11

12

DB5

DB4

CS

RDY

RD

DB3

DB2

DB1

DIP/SO/SSOP

MAX158

16

15

13

14

GND

INT

__________________________________________________________Pin Configurations

19-0892; Rev 3; 12/96

PART

MAX154ACNG

MAX154BCNG

MAX154BC/D

0°C to +70°C

0°C to +70°C

0°C to +70°C

TEMP. RANGE

PIN-PACKAGE

24 Narrow

Plastic DIP

24 Narrow

Plastic DIP

Dice

MAX154ACWG

MAX154BCWG

MAX154ACAG

0°C to +70°C

0°C to +70°C

0°C to +70°C

24 Wide SO

24 Wide SO

24 SSOP

Ordering Information continued at end of data sheet.

ERROR

(LSB)

±1

±1

MAX154BCAG

0°C to +70°C

24 SSOP

±1

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