BurrĆBrown Products
from Texas Instruments
IVC
DAC8830
DAC8831
102
OP
A1
32
DA
®
C8
831
SLAS449B – FEBRUARY 2005 – REVISED APRIL 2006
16-Bit, Ultra-Low Power, Voltage-Output
Digital-to-Analog Converters
FEATURES
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DESCRIPTION
16-Bit Resolution
2.7 V to 5.5 V Single-Supply Operation
Very Low Power: 15 µW for 3 V Power
High Accuracy, INL: 1 LSB
Low Glitch: 10 nV-s
Low Noise: 10 nV/√Hz
Fast Settling: 1.0 µS
Fast SPI™ Interface, up to 50 MHz
Reset to Zero-Code
Schmitt-Trigger Inputs for Direct Optocoupler
Interface
Industry-Standard Pin Configuration
The DAC8830 and DAC8831 are single, 16-bit,
serial-input,
voltage-output
digital-to-analog
converters (DACs) operating from a single 3 V to 5 V
power supply. These converters provide excellent
linearity (1 LSB INL), low glitch, low noise, and fast
settling (1.0 µS to 1/2 LSB of full-scale output) over
the specified temperature range of –40°C to +85°C.
The output is unbuffered, which reduces the power
consumption and the error introduced by the buffer.
These parts feature a standard high-speed (clock up
to 50 MHz), 3 V or 5 V SPI serial interface to
communicate with the DSP or microprocessors.
The DAC8830 output is 0 V to VREF. However, the
DAC8831 provides bipolar output (±VREF) when
working with an external buffer. The DAC8830 and
DAC8831 are both reset to zero-code after power
up. For optimum performance, a set of Kelvin
connections to external reference and analog ground
input are provided on the DAC8831.
APPLICATIONS
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Portable Equipment
Automatic Test Equipment
Industrial Process Control
Data Acquisition Systems
Optical Networking
The DAC8830 is available in an SO-8 package, and
the DAC8831 in an SO-14 package. Both have
industry standard pinouts (see Table 3, the
cross-reference table in the Application Information
section for details). The DAC8831 is also available in
a QFN-14 package.
DAC8830
Functional Block Diagram
DAC8831
Functional Block Diagram
VDD
VDD
VREF−S
VREF−F
RINV
SCLK
Serial
Interface
CS
VOUT
AGND
Input
Register
DAC Latch
CS
SCLK
SDI
SDI
RFB
INV
DAC8830
DGND
RFB
LDAC
Serial Interface
and Control Logic
DAC
VREF
DAC
VOUT
+V
−
+
VO
−V
OPA277
OPA704
AGNDS OPA727
AGNDF
Input
Register
DAC Latch
DAC8831
DGND
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.
SPI, QSPI are trademarks of Motorola, Inc.
Microwire is a trademark of National Semiconductor Corp.
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 © 2005–2006, Texas Instruments Incorporated
