ICM7361/7341/7321

Rev. A8

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

1

IC MICROSYSTEMS

FEATURES

•

12/10/8-Bit Monotonic DACs in 6 lead SOT-23

Package

•

Wide Output Voltage Swing

•

Micro-Power

•

On Board 1.25V Reference

•

Serial Interface with three-wire SPI/QSPI and

Microwire Interface Compatible

•

8µs Full-Scale Settling Time

APPLICATIONS

•

Battery-Powered Applications

•

Industrial Process Control

•

Digital Gain and Offset Adjustment

OVERVIEW

The ICM7361, ICM7341 and ICM7321 are 12-Bit, 10-Bit

and 8-Bit wide output voltage swing DACs respectively,

with guaranteed monotonic behavior. These DACs are

available in both a tiny 6-pin SOT-23 package and an 8-

pin MSOP package. They include a 1.25V reference for

ease of use and flexibility. The reference output is

available on a separate pin, in the 8-pin package version,

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

compatible interface. The DAC has a double buffered

BLOCK DIAGRAM

PACKAGE

SOT-23

8-Pin MSOP

Input Control Logic, Registers and Latches

ICM 7361/7341/7321

x2

12/10/8 -Bit

DAC

Reference

Input and

DAC Latch

REFOUT

(MSOP-8

Package Only)

Power-On-

Reset

SDI

4

V

OUT

1

V

DD

2

REFOUT

3

NC

8 GND

7 SDI

6 SCK

5 CS

4

V

OUT

4

V

OUT

1

V

DD

1

V

DD

2

REFOUT 2

REFOUT

3

NC 3

NC

8 GND

8 GND

7 SDI

7 SDI

6 SCK

6 SCK

5 CS

5 CS

1

V

OUT

2

GND

3

V

DD

6 CS

5 SCK

4 SDI

1

V

OUT

1

V

OUT

2

GND 2

GND

3

V

DD

3

V

DD

6 CS

6 CS

5 SCK

5 SCK

4 SDI

4 SDI

GND

CS

SCK