®
DAC7800
DAC7801
DAC7802
Dual Monolithic CMOS 12-Bit Multiplying
DIGITAL-TO-ANALOG CONVERTERS
FEATURES
APPLICATIONS
● TWO D/As IN A 0.3" WIDE PACKAGE
● PROCESS CONTROL OUTPUTS
● ATE PIN ELECTRONICS LEVEL SETTING
● PROGRAMMABLE FILTERS
● SINGLE +5V SUPPLY
● HIGH SPEED DIGITAL INTERFACE:
Serial—DAC7800
● PROGRAMMABLE GAIN CIRCUITS
● AUTO-CALIBRATION CIRCUITS
8 + 4-Bit Parallel—DAC7801
12-Bit Parallel—DAC7802
● MONOTONIC OVER TEMPERATURE
● LOW CROSSTALK: –94dB min
● FULLY SPECIFIED OVER –40OC TO +85OC
DESCRIPTION
The DAC7800, DAC7801 and DAC7802 are mem-
bers of a new family of monolithic dual 12-bit CMOS
multiplying digital-to-analog converters. The digital
interface speed and the AC multiplying performance
are achieved by using an advanced CMOS process
optimized for data conversion circuits. High stability
on-chip resistors provide true 12-bit integral and dif-
ferential linearity over the wide industrial temperature
range of –40oC to +85oC.
DAC7802 has a single-buffered 12-bit data word in-
terface. Parallel data is loaded (edge triggered) into the
single D/A register for each D/A. DAC7802 is pack-
aged in a 24-pin 0.3" wide plastic DIP.
DAC7802
12-Bit Interface
RFB A
IOUT A
VREF A
12
12-Bit MDAC
DAC A
DAC7800 features a serial interface capable of clock-
ing-in data at a rate of at least 10MHz. Serial data is
clocked (edge triggered) MSB first into a 24-bit shift
register and then latched into each D/A separately or
simultaneously as required by the application. An
asynchronous CLEAR control is provided for power-
on reset or system calibration functions. It is packaged
in a 16-pin 0.3" wide plastic DIP.
12
12
AGND A
DAC7801
8-Bit Interface
8 Bits + 4 Bits
RFB B
IOUT B
VREF B
8
12-Bit MDAC
DAC B
AGND B
Serial
DAC7800
DAC7801 has a 2-byte (8 + 4) double-buffered
interface. Data is first loaded (level transferred) into
the input registers in two steps for each D/A. Then
both D/As are updated simultaneously. DAC7801 fea-
tures an asynchronous CLEAR control. DAC7801 is
packaged in a 24-pin 0.3" wide plastic DIP.
Serial Interface
International Airport Industrial Park
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Mailing Address: PO Box 11400, Tucson, AZ 85734
FAXLine: (800) 548-6133 (US/Canada Only)
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Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706
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Tel: (520) 746-1111
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Twx: 910-952-1111
Internet: http://www.burr-brown.com/
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Cable: BBRCORP
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Telex: 066-6491
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FAX: (520) 889-1510
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Immediate Product Info: (800) 548-6132
®
© 1990 Burr-Brown Corporation
PDS-1079G
Printed in U.S.A. January, 1998
1
DAC7800, 01, 02