Texas Instruments DAC8771EVM, Руководство пользователя

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Overview
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2 SLAU727 – August 2017
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Copyright © 2017, Texas Instruments Incorporated
DAC8771 Evaluation Module
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1 Overview
The DAC8771 is a single-channel (quad) 16-bit precision digital-to-analog converter (DAC). The 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. It 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 DAC8771 includes an integrated buck-boost converter 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 DAC8771
features additional peripherals including: HART input pins for coupling of FSK HART voltage signals, slew-
rate control for the analog output, 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 DAC8771EVM Kit
Item # Item QTY Description or Use
1 DAC8771EVM 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 DAC8771EVM. This user’s guide is available from the TI website under the literature
number SLAU727. 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 # Literature Number
DAC8771 product data sheet SLASEE2
REF5050 product data sheet SBOS410
SM-USB-DIG platform user’s guide SBOU098