ICM7373 Datasheet, PDF (1/11 Pages) IC MICROSYSTEMS – Dual 12/10/8-Bit Voltage Output DACs Serial Interface with Adjustable Output Gain

ICmic
IC MICROSYSTEMS
ICM7373/7353/7333
Dual 12/10/8-Bit Voltage Output DACs
Serial Interface with Adjustable Output Gain
FEATURES
• 12/10/8-Bit Monotonic Dual DAC in 16 Lead
QSOP Package
• Adjustable Output Gain
• Rail-to-Rail Voltage Output
• 150 µA per DAC at 5V Supply
• 100 µA per DAC at 3V Supply
• On Board Reference
• Serial Interface with three-wire SPI/QSPI and
Microwire Interface Compatible
• Serial Data Out for Daisy-Chaining
• 8 µS Full scale Settling Time
APPLICATION
• Battery-Powered Applications
• Industrial Process Control
• Digital Gain and Offset Adjustment
OVERVIEW
The ICM7373, ICM7353 and ICM7333 are Dual 12-Bit, 10-
Bit and 8-Bit Rail-to-Rail voltage output DACs respectively,
with guaranteed monotonic behavior. These DACs are
available in 16 Lead QSOP package. They include
adjustable output gain 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. And there is a serial data
output port to allow daisy-chaining applications.
BLOCK DIAGRAM
ICM7373/7353/7333
INPUT AND DAC LATCH
REFB
INPUT AND DAC LATCH
REFA
DAC A
+
-
DAC B
+
-
REFOUT
REFERENCE
INPUT CONTROL LOGIC, REGISTERS AND LATCHES
SDI
SCK
CS
CLR
VOA
FBA
VOB
FBB
SDO
Rev. A1
ICmic reserves the right to change the specifications without prior notice.
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