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DAC725
Dual 16-Bit
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q
COMPLETE DUAL V
OUT
DAC
q
DOUBLE-BUFFERED INPUT REGISTER
q
HIGH-SPEED DATA INPUT:
Serial or Parallel
q
HIGH ACCURACY:
鹵
0.003% Linearity Error
q
14-BIT MONOTONICITY OVER
TEMPERATURE
q
PLASTIC PACKAGE
q
CLEAR INPUT TO SET ZERO OUTPUT
DESCRIPTION
The DAC725 is a dual 16-bit DAC, complete with
internal reference and output op amps. The DAC725 is
designed to interface to an 8-bit microprocessor bus,
but can also be interfaced to wider buses. The hybrid
construction minimizes the digital feedthrough typi-
cally associated with products that combine the digital
bus interface circuitry with high-accuracy analog cir-
cuitry.
The 16-bit data word is loaded into either of the DACs
in two 8-bit bytes per 16-bit word. The versatility of
the control lines allows the data word to be directed to
either DAC, in any order. The voltage-out DACs are
dedicated to a bipolar output voltage of
鹵10V.
The
output is immediately set to 0V when the Clear com-
mand is given. This feature, combined with the bus
interfacing and complete DAC circuitry, makes the
DAC725 ideal for automatic test equipment, power
control, servo systems, and robotics applications.
8
D/A
Latch
8
16
High
Byte
Low
Byte
16-
Bit
D/A
(A)
CS (A)
8-Bit
Data Bus
WR (A)
A
0
A
1
A
2
WR (B)
16-
Bit
D/A
(B)
CLR
Control Logic
CS (B)
High
Byte
Low
Byte
8
D/A
Latch
8
16
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400 鈥?Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd. 鈥?Tucson, AZ 85706
Tel: (520) 746-1111 鈥?Twx: 910-952-1111 鈥?Cable: BBRCORP 鈥?Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
漏 1987 Burr-Brown Corporation
PDS-757D
Printed in U.S.A. August, 1993