DAC2814 Datasheet, PDF (1/11 Pages) Burr-Brown (TI) – DUAL 12-BIT DIGITAL-TO-ANALOG CONVERTER Serial Interface

®
DAC2814
DUAL 12-BIT DIGITAL-TO-ANALOG
CONVERTER (Serial Interface)
FEATURES
q COMPLETE DUAL DAC —
INCLUDES INTERNAL REFERENCES AND
OUTPUT AMPLIFIERS
q GUARANTEED SPECIFICATIONS OVER
TEMPERATURE
q GUARANTEED MONOTONIC OVER
TEMPERATURE
q HIGH-SPEED SERIAL INTERFACE
(10MHz CLOCK)
q LOW POWER: 300mW (150mW/DAC)
q LOW GAIN DRIFT: 5ppm/°C
q LOW NONLINEARITY: ±1/2 LSB max
q UNIPOLAR OR BIPOLAR OUTPUT
q CLEAR/RESET TO UNIPOLAR OR
BIPOLAR ZERO
DESCRIPTION
The DAC2814 is one in a family of dual and quad 12-
bit digital-to-analog converters. Serial, 8-bit, 12-bit
interfaces are available.
The DAC2814 is complete. It contains CMOS logic,
switches, a high-performance buried-zener reference,
and low-noise bipolar output amplifiers. No external
components are required for either unipolar 0 to 10V,
0 to –10V, or bipolar ±10V output ranges.
+V_L 6
+V_S 10
–V_S 7
AGND 8
DGND 1
The DAC2814 has a high-speed serial interface
capable of being clocked at 10MHz. Serial data are
clocked DAC B MSB first into a 24-bit shift register,
then strobed into each DAC separately or simulta-
neously as required. The DAC has an asynchronous
clear control for reset to unipolar or bipolar zero
depending on the mode selected. This feature is useful
for power-on reset or system calibration. The DAC2814
is packaged in a 24-pin plastic DIP rated for the –40°C
Serial
Data and
Logic
to +85°C extended industrial temperature range.
Control In
High-stability laser-trimmed thin film resistors assure
high reliability and true 12-bit integral and differential
linearity over the full specified temperature range.
Serial
Data ⁵
Out
DAC2814
10V
Ref
10kΩ
10kΩ
A₃
DAC A
DAC B
20kΩ
20kΩ
A₁
20kΩ
20kΩ
A₂
16 +V_REF Out
15 Inv In
12 Inv Out
11 V_REF In
19 BPO A
14 V_OUT A
18 BPO B
17 V_OUT B
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 • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
© 1991 Burr-Brown Corporation
PDS-1103B
Printed in U.S.A. October, 1993