DAC7644_08 Datasheet, PDF (1/25 Pages) Texas Instruments – 16-Bit, Quad Voltage Output DIGITAL-TO-ANALOG CONVERTER

®
DAC7644
DAC7644
SBAS121
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information, visit www.burr-brown.com
16-Bit, Quad Voltage Output
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q LOW POWER: 10mW
q UNIPOLAR OR BIPOLAR OPERATION
q SETTLING TIME: 10µs to 0.003%
q 15-BIT LINEARITY AND MONOTONICITY:
–40°C to +85°C
q PROGRAMMABLE RESET TO MID-SCALE
OR ZERO-SCALE
q DATA READBACK
q DOUBLE-BUFFERED DATA INPUTS
APPLICATIONS
q PROCESS CONTROL
q CLOSED-LOOP SERVO-CONTROL
q MOTOR CONTROL
q DATA ACQUISITION SYSTEMS
q DAC-PER-PIN PROGRAMMERS
DAC7644
V_DD
V_SS
V_CC
DESCRIPTION
The DAC7644 is a 16-bit, quad voltage output digital-
to-analog converter with guaranteed 15-bit monotonic
performance over the specified temperature range. It
accepts 16-bit parallel input data, has double-buffered
DAC input logic (allowing simultaneous update of all
DACs), and provides a readback mode of the internal
input registers. Programmable asynchronous reset clears
all registers to a mid-scale code of 8000_H or to a zero-
scale of 0000_H. The DAC7644 can operate from a single
+5V supply or from +5V and –5V supplies.
Low power and small size per DAC make the DAC7644
ideal for automatic test equipment, DAC-per-pin pro-
grammers, data acquisition systems, and closed-loop
servo-control. The DAC7644 is available in a 48-lead
SSOP package and offers guaranteed specifications
over the –40°C to +85°C temperature range.
V_REFL
V_REFH
AB Sense V_REFL AB V_REFH AB AB Sense
DATA I/O
16
I/O
Buffer
Input
Register A
Input
Register B
A1
A0
Control
CS
Logic
R/W
Input
Register C
Input
Register D
DAC
Register A
DAC
Register B
DAC
Register C
DAC
Register D
DAC A
DAC B
DAC C
DAC D
V_OUTA
V_OUTA Sense
V_OUTB
V_OUTB Sense
V_OUTC
V_OUTC Sense
V_OUTD
V_OUTD Sense
AGND DGND
RST
RSTSEL LOADDACS ^VREF^{L V}REF^{L CD V}REF^{H CD V}REF^H
CD Sense
CD Sense
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© 1999 Burr-Brown Corporation
PDS-₁1535B
®
P_Drint_Aed _Cin U₇.S₆.A₄. ₄November, 1999