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Burr-Brown Corporation - Dual Monolithic CMOS 12-Bit Multiplying DIGITAL-TO-ANALOG CONVERTERS

Numéro de référence DAC7802K
Description Dual Monolithic CMOS 12-Bit Multiplying DIGITAL-TO-ANALOG CONVERTERS
Fabricant Burr-Brown Corporation 
Logo Burr-Brown Corporation 





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DAC7802K fiche technique
® DAC7800
DAC7801
DAC7802
Dual Monolithic CMOS 12-Bit Multiplying
DIGITAL-TO-ANALOG CONVERTERS
FEATURES
q TWO D/As IN A 0.3" WIDE PACKAGE
q SINGLE +5V SUPPLY
q HIGH SPEED DIGITAL INTERFACE:
Serial—DAC7800
8 + 4-Bit Parallel—DAC7801
12-Bit Parallel—DAC7802
q MONOTONIC OVER TEMPERATURE
q LOW CROSSTALK: –94dB min
q FULLY SPECIFIED OVER –40OC TO +85OC
APPLICATIONS
q PROCESS CONTROL OUTPUTS
q ATE PIN ELECTRONICS LEVEL SETTING
q PROGRAMMABLE FILTERS
q PROGRAMMABLE GAIN CIRCUITS
q AUTO-CALIBRATION CIRCUITS
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.
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.
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.
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 12-Bit Interface
DAC7801
8 8-Bit Interface
8 Bits + 4 Bits
Serial
DAC7800
Serial Interface
VREF A
12 12-Bit MDAC
DAC A
RFB A
IOUT A
AGND A
VREF B
12 12-Bit MDAC
DAC B
RFB B
IOUT B
AGND B
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1990 Burr-Brown Corporation
PDS-11079G
DAC7800Pr,int0ed1in,U0.S.2A. January, 1998
®

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