ICmic
ICM7363/7343/7323
Q
UAD
12/10/8-
BIT
V
OLTAGE
-O
UTPUT
DAC
S
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
BLOCK DIAGRAM
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.
REF
D
REFOUT
Reference
REF
C
REF
B
REF
A
V
DD
ICM 7363/7343/7323
Input and
DAC Latch
12/10/8 -Bit
DAC A
x2
V
OUT A
Input and
DAC Latch
12/10/8 -Bit
DAC B
x2
V
OUT B
Input and
DAC Latch
12/10/8 -Bit
DAC C
x2
V
OUT C
Input and
DAC Latch
12/10/8 -Bit
DAC D
x2
V
OUT D
SDI
Input Control Logic, Registers and Latches
Power-On-
Reset
SCK
CS
CLR
GND
SDO
Rev. A8
ICmic reserves the right to change the specifications without prior notice.
1
ICMIC [ IC MICROSYSTEMS ]
