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DAC8871
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SBAS396–JUNE 2007
16-Bit, Single-Channel, ±18V Output (Unbuffered), Ultra-Low Power, Serial Interface
DIGITAL-TO-ANALOG CONVERTER
FEATURES
DESCRIPTION
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16-Bit Resolution
The DAC8871 is a 16-bit, single-channel, serial
input, voltage output digital-to-analog converter
(DAC). The output range is determined by the
reference voltage, VREFH and VREFL. By properly
selecting the reference, the output can be unipolar or
bipolar, and up to ±18V. These converters provide
excellent linearity (1LSB INL), low noise, and fast
settling (1µs to 1LSB of full scale output) over the
specified temperature range of –40°C to +105°C.
The output is unbuffered, which reduces the power
consumption and the error introduced by the buffer.
The device features a standard high-speed clock (up
to 50MHz), and a 3V or 5V SPI serial interface to
communicate with the DSP or microprocessors.
Output: ±18V for ±18V Reference Input
±18V Supply Operation
Very Low Power
High Accuracy INL: 1LSB
Low Noise: 10nV/√Hz
Fast Settling: 1µs to 1LSB
Fast SPI™ Interface: Up To 50MHz
16-Pin TSSOP Package
Selectable Reset to Zero or Midscale
APPLICATIONS
For optimum performance,
a
set of Kelvin
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Portable Equipment
connections to external reference are provided. The
DAC8871 is available in a TSSOP-16 package.
Automatic Test Equipment
Industrial Process Control
Data Acquisition Systems
Optical Networking
VSS
VCC
VDD
DGND
VREFH-S VREFH-F VREFL-F VREFL-S
RSTSEL
RST
Control
VOUT
DAC
Logic
LDAC
AGND
CS
SCLK
SDI
Input
Serial
DAC
Latch
Data
Interface
Register
DAC8871
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
TI DSP is a trademark of Texas Instruments.
SPI, QSPI are trademarks of Motorola, Inc.
Microwire is a trademark of National Semiconductor.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007, Texas Instruments Incorporated