ICM7372/7352/7332

with Serial Interface and Adjustable Output Offset

Rev. A10

ICmic reserves the right to change the specifications without prior notice.

1

IC MICROSYSTEMS

FEATURES

•

12/10/8-Bit Monotonic Dual DAC in 16 Lead

QSOP Package

•

Adjustable Output Offset

•

Wide Output Voltage Swing

•

100 µA per DAC at 3V Supply

•

On Board Reference

•

Three-wire SPI/QSP and Microwire Interface

Compatible

•

Serial Data Out for Daisy-Chaining

•

8 µS Full scale Settling Time

APPLICATIONS

Battery-Powered Applications

Industrial Process Control

Digital Gain and Offset Adjustment

OVERVIEW

The ICM7372, ICM7352 and ICM7332 are 12-Bit, 10-Bit

and

8-Bit

voltage

output

DACs

respectively,

with

guaranteed

monotonic

behavior.

These

DACs

are

available

in

16-pin

QSOP

package.

They

include

adjustable output offset for ease of use and flexibility. The

reference output is available on a separate pin and can be

used to drive external loads. The operating supply range is

2.7V to 5.5V.

The input interface is an easy to use three-wire SPI/QSPI

and Microwire compatible interface. The DAC has a

double buffered digital input for added flexibility.

BLOCK DIAGRAM

INPUT AND DAC LATCH

INPUT CONTROL LOGIC, REGISTERS AND LATCHES

INPUT AND DAC LATCH

DAC B

DAC A

REFERENCE

REFB

REFA

VOA

VOB

OSA

OSB

SDO

SDI

SCK

ICM7372/7352/7332

+

-

+

-

50 K

50 K

50 K

50 K

CS

CLR