ICM7363/7343/7323

Rev. A8

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

1

IC MICROSYSTEMS

FEATURES

•

12/10/8-Bit Monotonic Quad DACs in 16 lead

QSOP Package

•

Wide Output Voltage Swing

•

150 µA per DAC at 5V Supply

•

100 µA per DAC at 3V Supply

•

On Board Reference

•

Three-wire SPI Interface

•

Serial Data Out for Daisy-Chaining

•

8µs Full-Scale Settling Time

APPLICATIONS

Battery-Powered Applications

Industrial Process Control

Digital Gain and Offset Adjustment

OVERVIEW

The ICM7363, ICM7343 and ICM7323 are Quad 12-Bit,

10-Bit and 8-Bit wide output voltage swing DACs

respectively, with guaranteed monotonic behavior. They

include a 1.25V reference for ease of use and flexibility.

The reference output is available on a separate pin and

can be used to drive the reference input of each DAC.

Alternately, each DAC can be driven by an external

reference. There is a wide operating supply range of 2.7V

to 5.5V.

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

compatible interface. Each DAC can be individually

controlled and has a double buffered digital input. There is

a

serial

data

output

to

allow

for

daisy-chaining

applications.

BLOCK DIAGRAM

x2

Input Control Logic, Registers and Latches

ICM 7363/7343/7323

x2

x2

12/10/8 -Bit

DAC B

x2

12/10/8 -Bit

DAC A

Reference

Input and

DAC Latch

12/10/8 -Bit

DAC C

12/10/8 -Bit

DAC D

Input and

DAC Latch

Input and

DAC Latch

Input and

DAC Latch

REFOUT

Power-On-

Reset

SDI

SDO

GND

CLR

CS

SCK