DAC2815 Datasheet, PDF (1/11 Pages) Burr-Brown (TI) – DUAL 12-BIT DIGITAL-TO-ANALOG CONVERTER 8-Bit Port Interface

®
DAC2815
DUAL 12-BIT DIGITAL-TO-ANALOG
CONVERTER (8-Bit Port 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 8 + 4-BIT PARALLEL
INTERFACE
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 DAC2815 is one in a family of dual and quad 12-
bit digital-to-analog converters (DACs). Serial, 8-bit,
12-bit interfaces are available.
The DAC2815 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 10
+V_S 12
–V_S 8
AGND 11
DGND 28
The DAC2815 has a 2-byte (8 + 4) double-buffered
interface. Data is first loaded (level transferred) into
the input registers in two steps for each DAC. Then
both DACs are updated simultaneously. 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 calibra-
tion. The DAC2815 is packaged in a 28-pin plastic
DIP rated for the –40°C to +85°C extended industrial _8-Bit
temperature range.
Port and
Logic
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.
DAC2815
10V
Ref
10kΩ
10kΩ
A₃
DAC A
DAC B
20kΩ
20kΩ
A₁
20kΩ
20kΩ
A₂
17 +V_REF Out
18 Inv In
14 Inv Out
13 V_REF In
20 BPO A
16 V_OUT A
19 BPO B
15 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-1110B
Printed in U.S.A. October, 1993