Overview
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2
SBAU248 – November 2016
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Copyright © 2016, Texas Instruments Incorporated
DAC8775EVM User’s Guide
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1
Overview
The DAC8775 is a four-channel (quad) 16-bit precision digital-to-analog converter (DAC). Each output can
be configured to produce a current in output ranges of 0 to 20 mA, 0 to 24 mA, 3.5 to 23.5 mA, or ±24 mA.
Each channel can also be configured for voltage output in ranges of 0 to 5 V, 0 to 6 V, 0 to 10 V, 0 to 12
V, ±5 V, ±6 V, ±10 V, or ±12 V. The DAC8775 includes integrated buck-boost converters for each channel
to generate all necessary power supplies from a single external supply. The buck-boost converter features
various operating modes that can be used to enhance power dissipation and thermal performance. The
DAC8775 features additional peripherals including: HART input pins for coupling of FSK HART Voltage
signals, slew-rate control for the analog outputs, and reliability features such as CRC, watchdog timer, and
conditional alarms.
1.1
EVM Kit Contents
Table 1
details the contents of the EVM kit. Contact the nearest Texas Instruments Product Information
Center or visit the Texas Instruments E2E Community (
http://E2E.ti.com
) if any component is missing.
Table 1. Contents of DAC8775EVM Kit
ITEM NO
ITEM
QTY
DESCRIPTION OR USE
1
DAC8775EVM PCB
1
EVM hardware
2
USB Extension Cable
1
Connects PC USB port to SM-USB-DIG USB connector
3
SM-USB-DIG Platform
1
Platform used for digital communication from PC to EVM
1.2
Related Documentation From Texas Instruments
The following documents provide information regarding Texas Instruments integrated circuits used in the
assembly of the DAC8775EVM. This user’s guide is available from the TI website under the literature
number SBAU248. Any letter appended to the literature number corresponds to the document revision that
is current at the time of the writing of this document. Newer revisions may be available from the TI website
at
http://www.ti.com/
, or by calling the Texas Instruments Literature Response Center at 1-800-477-8924
or the Product Information Center at 1-972-644-5580. When ordering identify the document by both title
and literature number.
Table 2. Related Documentation
ITEM NO
LITERATURE NUMBER
DAC8775 product data sheet
SLVSBY7
REF5050 product data sheet
SBOS410
SM-USB-DIG platform user’s guide
SBOU098