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DAC7731EC1K Datasheet

  • DAC7731EC1K

  • 16-Bit, Voltage Output, Serial Input DIGITAL-TO-ANALOG CONVE...

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DAC7731
DAC
773
1
SBAS249 鈥?DECEMBER 2001
16-Bit, Voltage Output, Serial Input
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q
LOW POWER: 150mW MAXIMUM
q
+10V INTERNAL REFERENCE
q
UNIPOLAR OR BIPOLAR OPERATION
q
SETTLING TIME: 5
碌
s to
鹵
0.003% FSR
q
16-BIT MONOTINICITY, 鈥?0
擄
C TO +85
擄
C
q
鹵
10V,
鹵
5V, OR +10V CONFIGURABLE VOLTAGE
OUTPUT
q
RESET TO ZERO OR MID-SCALE
q
DOUBLE-BUFFERED DATA INPUT
q
DAISY-CHAIN FEATURE FOR MULTIPLE
DAC7731s ON A SINGLE BUS
q
SMALL SSOP-24 PACKAGE
DESCRIPTION
The DAC7731 is a 16-bit Digital-to-Analog Converter (DAC)
which provides 16 bits of monotonic performance over the
specified operating temperature range and offers a +10V
internal reference. Designed for automatic test equipment
and industrial process control applications, the DAC7731鈥檚
output swing can be configured in a
鹵10V, 鹵5V,
or +10V
range. The flexibility of the output configuration allows the
DAC7731 to provide both unipolar and bipolar operation by
pin strapping. The DAC7731 includes a high-speed output
amplifier with a maximum settling time of 5碌s to
鹵0.003%
FSR for a 20V full-scale change and only consumes 100mW
(typical) of power.
The DAC7731 features a standard 3-wire, SPI-compatible
serial interface with double buffering to allow asynchronous
updates of the analog output as well as a serial data output
line for daisy-chaining multiple DAC7731鈥檚. A user program-
mable reset control forces the DAC output to either min-scale
(0000
H
) or mid-scale (8000
H
), overriding both the input and
DAC register values. The DAC7731 is available in a
SSOP-24 package and three performance grades specified
to operate from 鈥?0擄C to +85擄C.
APPLICATIONS
q
PROCESS CONTROL
q
ATE PIN ELECTRONICS
q
CLOSED-LOOP SERVO CONTROL
q
MOTOR CONTROL
q
DATA ACQUISITION SYSTEMS
V
DD
V
SS
V
CC
REFADJ
REF
OUT
REF
IN
V
REF
R
OFFSET
Buffer
REFEN
RSTSEL
RST
LDAC
SCLK
CS
Control
Logic
+10V
Reference
RFB2
RFB1
SJ
SDO
SDI
Enable
Input
Register
DAC
Register
DAC
V
OUT
AGND
DGND
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 漏 2001, Texas Instruments Incorporated
www.ti.com

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