ICM7333Q ICMIC [IC MICROSYSTEMS], ICM7333Q Datasheet

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ICM7333Q

Manufacturer Part Number
ICM7333Q
Description
Dual 12/10/8-Bit Voltage Output DACs Serial Interface with Adjustable Output Gain
Manufacturer
ICMIC [IC MICROSYSTEMS]
Datasheet
FEATURES
APPLICATION
BLOCK DIAGRAM
Rev. A1
ICmic
IC MICROSYSTEMS
REFOUT
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
Battery-Powered Applications
Industrial Process Control
Digital Gain and Offset Adjustment
ICmic reserves the right to change the specifications without prior notice.
REFERENCE
ICM7373/7353/7333
INPUT AND DAC LATCH
INPUT AND DAC LATCH
SDI
INPUT CONTROL LOGIC, REGISTERS AND LATCHES
REFB
SCK
Serial Interface with Adjustable Output Gain
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.
Dual 12/10/8-Bit Voltage Output DACs
CS
DAC A
DAC B
REFA
ICM7373/7353/7333
CLR
+
+
-
-
SDO
VOA
FBA
VOB
FBB
1

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ICM7333Q Summary of contents

Page 1

ICmic IC MICROSYSTEMS 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 ...

Page 2

ICmic IC MICROSYSTEMS PACKAGE AGND VOA FBA REFA CLR SDI SCK PIN DESCRIPTION (16 Lead QSOP) Pin Name I/O 1 AGND I Analog Ground 2 VOA O DAC A Output Voltage 3 FBA I Inverting Input of The Output Amplifier ...

Page 3

ICmic IC MICROSYSTEMS ABSOLUTE MAXIMUM RATING Symbol Parameter Supply Voltage V DD Input Current I IN Digital Input Voltage (SCK, SDI CLR ) V IN_ Reference Input Voltage V IN_REF Storage Temperature T STG Soldering Temperature T SOL ...

Page 4

ICmic IC MICROSYSTEMS Symbol Parameter OUTPUT CHARACTERISTICS Output Voltage Range Short Circuit Current VO SC Amp Output Impedance R OUT Output Line Regulation LOGIC INPUTS Digital Input High V IH Digital Input Low V IL Digital Input Leakage REFERENCE Reference ...

Page 5

ICmic IC MICROSYSTEMS SCK t 2 SDI DAC INPUT WORD Rev. A1 ICmic reserves the right to change the specifications without prior notice. ICM7373/7353/7333 Dual 12/10/8-Bit Voltage Output DACs Serial Interface with Adjustable Output ...

Page 6

ICmic IC MICROSYSTEMS (ENABLE SCK SCK SDI CONTROL WORD SDO Figure 2. Serial Interface Operation Diagram Rev. A1 ICmic reserves the right to change the specifications without prior notice. ...

Page 7

ICmic IC MICROSYSTEMS CONTENTS OF INPUT SHIFT REGISTER ICM7373 (12-Bit DAC) MSB D11 CONTROL WORD Figure 3. Contents of ICM7373 Input Shift Register ICM7353 (10-Bit DAC) MSB CONTROL WORD Figure 4. ...

Page 8

ICmic IC MICROSYSTEMS DETAILED DESCRIPTION The ICM7373 is a 12-bit voltage output dual DAC. The ICM7353 is the 10-bit version of this family and the ICM7333 is the 8-bit version. This family of DACs employs a resistor string architecture guaranteeing ...

Page 9

ICmic IC MICROSYSTEMS DEADBAND NEGATIVE OFFSET Figure 6. Effect of Negative Offset V DD DEADBAND POSITIVE OFFSET Figure 7. Effect of Gain Error and Positive Offset Rev. A1 ICmic reserves the right to change the specifications without prior notice. ICM7373/7353/7333 ...

Page 10

ICmic IC MICROSYSTEMS PACKAGE INFORMATION 16 QSOP 0.012 (0,30) 0.008 (0,20) Note: 1. All Linear dimensions are in inches (millimeters) format 2. This drawing is subject to change without notice 3. Body dimensions do not include mold ...

Page 11

ICmic IC MICROSYSTEMS ORDERING INFORMATION ICM73X3 P G Device 7 - ICM7373 5 - ICM7353 3 - ICM7333 Rev. A1 ICmic reserves the right to change the specifications without prior notice ICM7373/7353/7333 D 12/10/8- V UAL BIT OLTAGE G = ...

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