_______________General Description

The MAX532 is a complete, dual, serial-input, 12-bit

multiplying digital-to-analog converter (MDAC) with out-

put amplifiers. No external user trims are required to

achieve full specified performance. The MAX532’s 3-

wire serial interface minimizes the number of package

pins, so it uses less board space than parallel-interface

parts. The interface is SPI™, QSPI™ and Microwire™

compatible. A serial output, DOUT, allows cascading

of two or more MAX532s and read-back of the data

written to the device.

The device’s serial interface minimizes digital-noise

feedthrough from its logic pins to its analog outputs.

Serial interfacing also simplifies opto-coupler-isolated

or transformer-isolated applications.

The MAX532 is specified with ±12V to ±15V power sup-

plies. All logic inputs are TTL and CMOS compatible. It

comes in space-saving 16-pin DIP and wide SO packages.

________________________Applications

Automatic Test Equipment

Arbitrary Waveform Generators

Programmable-Gain Amplifiers

Motion Control Systems

Servo Controls

____________________________Features

o Two 12-Bit MDACs with Output Amplifiers

o Fast, 6MHz 3-Wire Interface

o SPI, QSPI, and Microwire Compatible

o ±12V Output Swing

o ±10mA Output Current

o 2.5µs Settling Time to ±1/2LSB

o Guaranteed Monotonic Over Temperature

o Low Integral Nonlinearity: ±1/2LSB Max

o Low Gain Tempco: 2ppm/°C

o Operates from ±12V to ±15V Supplies

o Power-On Reset

o Available in 16-Pin DIP and Wide SO Packages

______________Ordering Information

Dual, Serial-Input,

Voltage-Output, 12-Bit MDAC

________________________________________________________________

Maxim Integrated Products

1

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

LDAC

CS

DIN

AGNDA

VOUTA

VREFA

RFBA

TOP VIEW

DOUT

SCLK

DGND

RFBB

VREFB

VOUTB

AGNDB

DIP/Wide SO

MAX532

__________________Pin Configuration

DACA

LATCH

24-BIT SHIFT

REGISTER

DACB

LATCH

DACA

RFBA

VOUTA

DOUT

RFBB

VOUTB

AGNDB

AGNDA

VREFA

DIN

SCLK

CS

LDAC

VREFB

DACB

DGND

MAX532

________________Functional Diagram

Call toll free 1-800-998-8800 for free samples or literature.

19-0046; Rev. 1; 3/94

PART

TEMP. RANGE PIN-PACKAGE

MAX532ACPE

0°C to +70°C

16 Plastic DIP

MAX532BCPE

0°C to +70°C

16 Plastic DIP

MAX532ACWE

0°C to +70°C

16 Wide SO

MAX532BCWE

0°C to +70°C

16 Wide SO

MAX532BC/D

0°C to +70°C

Dice*

™Microwire is a trademark of National Semiconductor Corp. SPI and QSPI are trademarks of Motorola, Inc.

±1/2

±1

±1/2

±1

±1

ERROR

(LSBs)

Ordering Information continued on last page.

* Contact factory for dice specifications.