TI introduces industry’s first SAR ADC with SPICE model

The model is available for the new 12-bit, 1-MSPS, 8-channel ADS8028, a highly-integrated SAR ADC featuring a low-drift internal voltage reference, wide external analogue voltage reference range, wide analogue and digital supply ranges, and an internal temperature sensor.

Designers could previously only simulate, model and test up to the SAR ADC, requiring them to invest time and resources building the ADC circuit in hardware. With a downloadable TINA-TI SPICE model available for all new SAR ADCs, designers will be able to fully verify ADC driving circuitry, enabling them to speed product development.

Key features of the ADS8028 include tools to simulate and evaluate quickly and it integrates an internal 2.5-V reference, ±1 degree Celsius accurate temperature sensor and internal multiplexer with sequencer; it also eliminates the need for an external decoupling capacitor.

Other benefits include a wide supply range providing greater power supply flexibility and low power consumption, and a small size for battery-powered, space-constrained designs.

In addition to the TINA-TI SPICE model, an IBIS model is available to verify board signal integrity requirements. The ADS8028EVM-PDK is also available to expedite evaluation of the new ADC.

Texas Instruments

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