ICM7323 ICMIC [IC MICROSYSTEMS], ICM7323 Datasheet

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ICM7323

Manufacturer Part Number
ICM7323
Description
QUAD 12/10/8-BIT VOLTAGE-OUTPUT DACS
Manufacturer
ICMIC [IC MICROSYSTEMS]
Datasheet
FEATURES
APPLICATIONS
OVERVIEW
The ICM7363, ICM7343 and ICM7323 are Quad 12-Bit,
10-Bit and 8-Bit wide output voltage swing DACs
BLOCK DIAGRAM
Rev. A8
ICmic
IC MICROSYSTEMS
Battery-Powered Applications
Industrial Process Control
Digital Gain and Offset Adjustment
REFOUT
12/10/8-Bit Monotonic Quad DACs in 16 lead
QSOP Package
Wide Output Voltage Swing
150 A per DAC at 5V Supply
100 A per DAC at 3V Supply
On Board Reference
Three-wire SPI Interface
Serial Data Out for Daisy-Chaining
8 s Full-Scale Settling Time
SDI
DAC Latch
DAC Latch
DAC Latch
DAC Latch
Input and
Input and
Input and
Input and
Reference
SCK
ICmic reserves the right to change the specifications without prior notice.
Input Control Logic, Registers and Latches
REF
D
CS
REF
C
REF
B
12/10/8 -Bit
12/10/8 -Bit
12/10/8 -Bit
12/10/8 -Bit
REF
DAC B
DAC D
DAC A
DAC C
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
applications.
CLR
serial
A
ICM 7363/7343/7323
Q
UAD
data
12/10/8-
ICM7363/7343/7323
Power-On-
Reset
output
x2
x2
x2
x2
BIT
GND
V
to
DD
V
OLTAGE
allow
V
SDO
V
V
V
OUT D
OUT B
OUT A
OUT C
for
-O
UTPUT
daisy-chaining
DAC
S
1

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ICM7323 Summary of contents

Page 1

... Serial Data Out for Daisy-Chaining 8 s 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 REFOUT Reference Input and DAC Latch ...

Page 2

ICmic IC MICROSYSTEMS PACKAGE PIN DESCRIPTION Pin No Symbol 1 V Supply Voltage DAC A Output OUT A 3 REF DAC A Reference Input DAC B Output OUT B 5 REF DAC B Reference ...

Page 3

... DD = REF IN = Symbol Parameter DC PERFORMANCE ICM7363 N Resolution DNL Differential Nonlinearity INL Integral Nonlinearity ICM7343 N Resolution DNL Differential Nonlinearity INL Integral Nonlinearity ICM7323 N Resolution DNL Differential Nonlinearity INL Integral Nonlinearity GE Gain Error OE Offset Error POWER REQUIREMENTS V Supply Voltage DD I Supply Current DD Symbol Parameter ...

Page 4

... Settling Time Mid-scale Transition Glitch Energy Note 1: Linearity is defined from code 64 to 4095 (ICM7363) Linearity is defined from code 16 to 1023 (ICM7343) Linearity is defined from code 4 to 255 (ICM7323) Note 2: Guaranteed by design; not tested in production Note 3: See Applications Information Note 4: All digital inputs are either at GND or Vdd ...

Page 5

... Figure 1: Serial Interface Timing Diagram D10 Figure 2: Contents of ICM7363 Input Shift Register Figure 3: Contents of ICM7343 Input Shift Register Figure 4: Contents of ICM7323 Input Shift Register ICM7363/7343/7323 12/10/ UAD BIT OLTAGE UTPUT Input Word for DAC N LSB D5 D4 ...

Page 6

ICmic IC MICROSYSTEMS DATA Data Data Data Data Data Data 0 1 ...

Page 7

... The ICM7343 has the last two LSBs as don’t cares and the ICM7323 has the last 4 LSBs as don’t cares. Each DAC is double buffered with an input latch and a DAC latch. All the digital inputs are CMOS/TTL compatible. The current dissipation of the device however, will be higher when the inputs are driven at TTL levels ...

Page 8

ICmic IC MICROSYSTEMS APPLICATIONS INFORMATION Power Supply Bypassing and Layout Considerations As in any precision circuit, careful consideration has to be given to layout of the supply and ground. The return path from the GND to the supply ground should ...

Page 9

ICmic IC MICROSYSTEMS PACKAGE INFORMATION Rev. A8 ICmic reserves the right to change the specifications without prior notice. ICM7363/7343/7323 Q 12/10/ UAD BIT OLTAGE DAC UTPUT S 9 ...

Page 10

... ICmic IC MICROSYSTEMS ORDERING INFORMATION ICM73X3 P G Device 6 - ICM7363 4 - ICM7343 2 - ICM7323 Rev. A8 ICmic reserves the right to change the specifications without prior notice. ICM7363/7343/7323 Q 12/10/8- V UAD BIT OLTAGE G = RoHS Compliant Lead-Free package. Blank = Standard package. Non lead-free. Package Q = 16-Lead QSOP -O DAC UTPUT S 10 ...

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