May 21, 2012 -- Texas Instruments, Inc. (TI) today introduced a successive-approximation-register (SAR) analog-to-digital converter (ADC) with a downloadable TINA-TI Spice model, enabling system designers to simulate and characterize the full analog signal chain in software for the first time. 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 analog voltage reference range, wide analog and digital supply ranges, and an internal temperature sensor.

Key features and benefits of the ADS8028

• TINA-TI reference design and product-evaluation module (EVM) include the OPA836 driver amplifier for fast software simulation and hardware evaluation.
• Integrates an internal 2.5-V reference, +1°C accurate temperature sensor and internal multiplexer with sequencer; it also eliminates the need for an external decoupling capacitor.
• 3X wider analog supply range of 2.7V to 5.25V, 80% wider digital supply range of 1.65V to 5.25V and 2.5X wider external reference range of 1V to 5V.
• Consumes a maximum of 36µW in power-down mode across a wide operating temperature range of -40°C to 125°C in a small 4x4-mm package to support 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. It can be ordered today for $199.

Availability and Pricing

The ADS8028 is available today in a 4x4-mm QFN package for a suggested retail price of $3.25 in 1,000-unit quantities.

	Go to the Texas Instruments, Inc. (TI) website for details.