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DAC reduces board space, lowers system cost

09 May 2014

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Texas Instruments (TI) has introduced a family of digital-to-analogue converters (DACs) that enables engineers to increase the accuracy and performance of programmable logic controller (PLC) I/O modules, field sensors and transmitters, and building automation systems, while decreasing overall system size and cost.

The DAC8760 family is also the industry's first to provide simultaneous voltage and current outputs, giving system designers the flexibility to use either one or both outputs. Key benefits of the DAC8760 family include maximum total unadjusted error (TUE) of 0.1 per cent, highest integration for reduced board space and bill of materials, greater design flexibility, and wide temperature range from -40?C to +125?C, which is 32 per cent wider than similar DACs.

TI offers a range of support tools for the DAC8760 family to speed time to market, including reference designs, simulation models, and hardware evaluation modules.

The following TI Designs reference design circuits provide theory, simulation, calculation, design methodology, and more:

  • Combined voltage and current output terminal for analogue outputs (AO) in industrial applications (TIPD119)
  • Single-channel industrial voltage and current output driver, isolated, EMC/EMI Tested (TIPD153)
  • 16bit analogue output module reference design for programmable logic controllers (TIDA-00118)

Evaluation modules (EVMs) are available for each device in the DAC8760 family, providing an easy way to evaluate device performance and operating characteristics. This includes an enhanced EVM, which features additional components to increase immunity from electrostatic discharge (ESD) and electromagnetic interference (EMI) events. An IBIS model to perform various board-level signal integrity simulations and timing analyses is also available.

Customer support for the DAC8760 family is available on the Precision Data Converters Forum in the TI E2E Community, where engineers can search for solutions, get help, share knowledge and solve problems with fellow engineers and TI experts.

To learn how to design AO with 4mA to 20mA DACs, watch the video below:




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