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DAC7644
DAC7644
For most current data sheet and other product
information, visit www.burr-brown.com
16-Bit, Quad Voltage Output
DIGITAL-TO-ANALOG CONVERTER
DESCRIPTION
FEATURES
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 8000H or to a zero-
scale of 0000H. The DAC7644 can operate from a single
+5V supply or from +5V and –5V supplies.
● LOW POWER: 10mW
● UNIPOLAR OR BIPOLAR OPERATION
● SETTLING TIME: 10µs to 0.003%
● 15-BIT LINEARITY AND MONOTONICITY:
–40°C to +85°C
● PROGRAMMABLE RESET TO MID-SCALE
OR ZERO-SCALE
● DATA READBACK
● DOUBLE-BUFFERED DATA INPUTS
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.
APPLICATIONS
● PROCESS CONTROL
● CLOSED-LOOP SERVO-CONTROL
● MOTOR CONTROL
● DATA ACQUISITION SYSTEMS
● DAC-PER-PIN PROGRAMMERS
VREF
L
VREF
H
AB Sense
AB Sense
VREFL AB VREFH AB
VDD
VSS
VCC
DAC7644
16
I/O
Buffer
Input
Register A
DAC
Register A
DATA I/O
DAC A
VOUT
A
A
VOUT
Sense
Sense
Sense
Sense
Input
Register B
DAC
Register B
DAC B
DAC C
DAC D
VOUT
B
B
VOUT
A1
A0
Input
Register C
DAC
Register C
Control
Logic
VOUT
C
C
CS
R/W
VOUT
Input
Register D
DAC
Register D
VOUT
D
D
VOUT
VREFL CD VREFH CD
VREF
CD Sense
L
VREF
CD Sense
H
AGND DGND
RST
RSTSEL LOADDACS
International Airport Industrial Park
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Mailing Address: PO Box 11400, Tucson, AZ 85734
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Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706
FAX: (520) 889-1510
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Tel: (520) 746-1111
Twx: 910-952-1111
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Internet: http://www.burr-brown.com/
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Cable: BBRCORP Telex: 066-6491
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Immediate Product Info: (800) 548-6132
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© 1999 Burr-Brown Corporation
PDS-11535B
PDrintAedCin U7.S6.A4. 4November, 1999