DAC813 Datasheet, PDF (1/11 Pages) Burr-Brown (TI) – Microprocessor-Compatible 12-BIT DIGITAL-TO-ANALOG CONVERTER

®
DAC813
DAC813
DAC813
Microprocessor-Compatible
12-BIT DIGITAL-TO-ANALOG CONVERTER
FEATURES
q ±1/2LSB NONLINEARITY OVER
TEMPERATURE
q GUARANTEED MONOTONIC OVER
TEMPERATURE
q LOW POWER: 270mW typ
q DIGITAL INTERFACE DOUBLE
BUFFERED: 12 AND 8 + 4 BITS
q SPECIFIED AT ±12V AND ±15V POWER
SUPPLIES
q RESET FUNCTION TO BIPOLAR ZERO
q 0.3" WIDE DIP AND SO PACKAGES
DESCRIPTION
The DAC813 is a complete monolithic 12-bit digital-
to-analog converter with a flexible digital interface.
It includes a precision +10V reference, interface con-
trol logic, double-buffered latch and a 12-bit D/A
converter with voltage output operational amplifier.
Fast current switches and laser-trimmed thin-film
resistors provide a highly accurate, fast D/A con-
verter.
Digital interfacing is facilitated by a double buffered
latch. The input latch consists of one 8-bit byte and
one 4-bit nibble to allow interfacing to 8-bit (right
justified format) or 16-bit data buses. Input gating
logic is designed so that the last nibble or byte to be
loaded can be loaded simultaneously with the transfer
of data to the D/A latch saving computer instructions.
A reset control allows the DAC813 D/A latch to
asynchronously reset the D/A output to bipolar zero,
a feature useful for power-up reset, recalibration, or
for system re-initialization upon system failure.
The DAC813 is specified to ±1/2LSB maximum lin-
earity error (J, A grades) and ±1/4LSB (K grade).
It is packaged in 28-pin 0.3" wide plastic DIP and
28-lead plastic SOIC
Reset
4 MSBs
Input Latch
4
D/A Latch
10V
Reference
49.5kΩ
V_{REF OUT}
V_{REF IN}
8 LSBs
Input Latch
8
12
12-Bit D/A
Converter
24.9kΩ
25kΩ
25kΩ
BPO
20V Span
20V Span
V_OUT
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: [phone] • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: [phone] (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
© 1990 Burr-Brown Corporation
PDS-₁1077G
®
DAC813 ^{Printed in U.S.A. March, 1998}