DALLAS, July 23, 2015 – Texas Instruments (TI) (NASDAQ: TXN) today introduced a 32-bit delta-sigma analog-to-digital converter (ADC) that combines high resolution, low noise and fault detection to avoid the performance and feature trade-offs that typically occur during device evaluation and selection. The new ADS1262 and ADS1263 offer high integration, integrate the sensor and eliminate the need for external components that increase system cost and degrade noise and drift performance. (For more information, visit www.ti.com/ads1262-pr-kr.)

System designers who require high-resolution ADCs have had to sacrifice many integrated features as well as other expected specifications such as low noise and low offset drift. The ADS1262 and ADS1263 provide 32-bit resolution along with high integration, error detection, fast data rates, and wide temperature range without sacrificing these expected specifications, helping to maximize the performance of programmable logic controllers (PLCs), industrial automation equipment, and sensor measurement applications.

Key Features and Benefits of ADS1262 and ADS1263

· Accurate small signal measurements: High resolution of 32 bits and low noise of 7nVRMS at 2.5SPS enable measurements of the smallest signals, which is essential for bridge applications where typical full-scale signals are less than 10mV. 80% lower offset error drift than competing solutions ensures measurement stability across the entire temperature range.

· Reduce system cost, board space and design time with fewer components: The ADS1262 integrates a programmable gain amplifier (PGA), a 2.5-V reference, an oscillator, a level shifter, a temperature sensor, a dual-excitation current source (IDAC), and eight general-purpose input/output (GPIO) pins. The ADS1263 adds an auxiliary 24-bit delta-sigma ADC, making it suitable for systems that require parallel conversion, sensor temperature compensation, or sensor diagnostics for the main channel.

· Integrated monitoring and diagnostics: Integrated internal signal chain monitoring, data error detection, sensor burnout detection, and digital-to-analog converter (DAC) test functions provide internal and external error detection and diagnostics required for high-reliability systems. (For more information, see TI’s new white paper, “How Integrated Diagnostics in the ADS1262 and ADS1263 Improve System Reliability.”)

· Fast data rate: Maximum output data rate of 38kSPS allows use in high data throughput industrial applications.

· Supports harsh industrial environments: Provides an operating temperature range of -40°C to 125°C, which is 20C wider than competitive products.

Tools and support to reduce design time

TI offers a variety of support tools for the ADS1262 and ADS1263 to accelerate time to market, including a TI Designs reference design for high-resolution, low-drift precision weighbridge measurement using AC bridge excitation.

The ADS1262 and ADS1263 offer a complete support suite for system designers, including samples, IBIS models, an Excel calculator tool to aid in device configuration, and a performance development kit (PDK). The ADS1262EVM-PDK and ADS1263EVM-PDK are available for $199 from the TI store and authorized TI distributors.

Technical support for the ADS1262 and ADS1263 is available in the Precision Data Converters forum in the TI E2E™ Community. The TI E2E™ Community is an engineering forum where you can search for solutions, get help from fellow engineers and TI experts, share knowledge and solve problems.

Engineers looking to design with data converters such as the ADS1262 and ADS1263 can visit TI’s new Data Converter Learning Center for design-in-depth resources organized by topics such as Delta-Sigma ADC Fundamentals, ADC Noise Analysis and Filtering, and Driving ADCs.

Price and Availability

The ADS1262 is available now in a 9.7 mm x 6.4 mm TSSOP package and is priced at $9.10 in 1,000-unit quantities, and the ADS1263 is available in a 9.7 mm x 6.4 mm TSSOP package and is priced at $12.65 in 1,000-unit quantities.