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Burr-Brown Corporation - Microprocessor-Compatible 12-BIT DIGITAL-TO-ANALOG CONVERTER

Numéro de référence DAC811RH
Description Microprocessor-Compatible 12-BIT DIGITAL-TO-ANALOG CONVERTER
Fabricant Burr-Brown Corporation 
Logo Burr-Brown Corporation 





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DAC811RH fiche technique
® DAC811
For most current data sheet and other product
information, visit www.burr-brown.com
Microprocessor-Compatible
12-BIT DIGITAL-TO-ANALOG CONVERTER
FEATURES
q SINGLE INTEGRATED CIRCUIT CHIP
q MICROCOMPUTER INTERFACE:
DOUBLE-BUFFERED LATCH
q VOLTAGE OUTPUT: ±10V, ±5V, +10V
q MONOTONICITY GUARANTEED OVER
TEMPERATURE
q ±1/2LSB MAXIMUM NONLINEARITY OVER
TEMPERATURE
q GUARANTEED SPECIFICATIONS AT ±12V
AND ±15V SUPPLIES
q TTL/5V CMOS-COMPATIBLE LOGIC
INPUTS
DESCRIPTION
The DAC811 is a complete, single-chip integrated-
circuit, microprocessor-compatible, 12-bit digital-to-
analog converter. The chip combines a precision volt-
age reference, microcomputer interface logic, and
double-buffered latch, in a 12-bit D/A converter with
a voltage output amplifier. Fast current switches and a
laser-trimmed thin-film resistor network provide a
highly accurate and fast D/A converter.
Microcomputer interfacing is facilitated by a double-
buffered latch. The input latch is divided into three
4-bit nibbles to permit interfacing to 4-, 8-, 12-, or
16-bit buses and to handle right-or left-justified data.
The 12-bit data in the input latches is transferred to the
D/A latch to hold the output value.
Input gating logic is designed so that loading the last
nibble or byte of data can be accomplished simulta-
neously with the transfer of data (previously stored in
adjacent latches) from adjacent input latches to the
D/A latch. This feature avoids spurious analog output
values while using an interface technique that saves
computer instructions.
The DAC811 is laser trimmed at the wafer level and
is specified to ±1/4LSB maximum linearity error (B,
K, and S grades) at 25°C and ±1/2LSB maximum over
the temperature range. All grades are guaranteed mono-
tonic over the specification temperature range.
The DAC811 is available in six performance grades
and three package types. DAC811J and K are speci-
fied over the temperature ranges of 0°C to +70°C;
DAC811A and B are specified over –25°C to +85°C;
DAC811R and S are specified over –55°C to +125°C.
DAC811J and K are packaged in a reliable 28-pin
plastic DIP or plastic SOIC package, while DAC811A,
B, R and S are available in a 28-pin 0.6" wide dual-
inline hermetically sealed ceramic side-brazed pack-
age (H package).
4 MSBs
4 LSBs
Input Latch Input Latch Input Latch
D/A Latch
12-Bit D/A Converter
Voltage Reference
RBPO
BPO
SJ
RF 10V
RF
VOUT
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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1983 Burr-Brown Corporation
PDS1-503K
DAC811Printed in U.S.A. January, 2000
®

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