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_______________General Description

The MAX500 is a quad, 8-bit, voltage-output digital-to-

analog converter (DAC) with a cascadable serial inter-

face. The IC includes four output buffer amplifiers and

input logic for an easy-to-use, two- or three-wire serial

interface. In a system with several MAX500s, only one

serial data line is required to load all the DACs by cas-

cading them. The MAX500 contains double-buffered

logic and a 10-bit shift register that allows all four DACs

to be updated simultaneously using one control signal.

There are three reference inputs so the range of two of

the DACs can be independently set while the other two

DACs track each other.

The MAX500 achieves 8-bit performance over the full

operating temperature range without external trimming.

________________________Applications

Minimum Component Count Analog Systems

Digital Offset/Gain Adjustment

Industrial Process Control

Arbitrary Function Generators

Automatic Test Equipment

____________________________Features

o Buffered Voltage Outputs

o Double-Buffered Digital Inputs

o Microprocessor and TTL/CMOS Compatible

o Requires No External Adjustments

o Two- or Three-Wire Cascadable Serial Interface

o 16-Pin DIP/SO Package and 20-Pin LCC

o Operates from Single or Dual Supplies

______________Ordering Information

CMOS, Quad, Serial-Interface

8-Bit DAC

________________________________________________________________

Maxim Integrated Products

1

TOP VIEW

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

MAX500

SRO

SCL

LOAD

SDA

LDAC

DGND

AGND

DIP/SO

_________________Pin Configurations

MAX500

DAC A

DAC B

DAC C

DAC D

DAC

REG A

INPUT

REG A

DAC

REG B

INPUT

REG B

DAC

REG C

INPUT

REG C

DAC

REG D

INPUT

REG D

10/11-

BIT

SHIFT

REGISTER

CONTROL

LOGIC

LOAD

SCL

SDA

SRO

AGND

LDAC

________________Functional Diagram

19-1016; Rev 2; 2/96

PART

MAX500ACPE

MAX500BCPE

MAX500ACWE

0°C to +70°C

0°C to +70°C

0°C to +70°C

TEMP. RANGE PIN-PACKAGE

16 Plastic DIP

16 Plastic DIP

16 Wide SO

MAX500BCWE

0°C to +70°C

16 Wide SO

MAX500BC/D

0°C to +70°C

Dice*

MAX500AEPE -40°C to +85°C

16 Plastic DIP

MAX500BEPE -40°C to +85°C

16 Plastic DIP

MAX500AEWE -40°C to +85°C

16 Wide SO

MAX500BEWE -40°C to +85°C

16 Wide SO

MAX500AEJE -40°C to +85°C

16 CERDIP

MAX500BEJE -40°C to +85°C

16 CERDIP

MAX500AMJE -55°C to +125°C

16 CERDIP

MAX500BMJE -55°C to +125°C

16 CERDIP

ERROR (LSB)

±1

±2

±1

±2

±2

±1

±2

±1

±2

±1

±2

±1

±2

*Contact factory for dice specifications.

Pin Configurations continued on last page.

MAX500AMLP -55°C to +125°C

20 LCC

±1

MAX500BMLP -55°C to +125°C

20 LCC

±2