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Tiny 24-bit Precision Wideband ADC Rolls

Texas Instruments (TI) has introduced what it claims is the smallest 24-bit wideband analog-to-digital converter (ADC) that delivers industry-leading signal-measurement precision at wider bandwidths than competing ADCs. The ADS127L11 achieves ultra-precise data acquisition in a 50% smaller package, significantly optimizing power consumption, resolution and measurement bandwidth for a wide range of industrial systems.

The ADS127L11 offers wideband and low-latency filter options to optimize ADC performance and deliver tailored, high-performance data acquisition in a broad range of industrial systems, says TI. Embedded designers can use wideband mode to improve AC measurement resolution with 50% wider bandwidth, data rates as high as 400kSPS, and a 30% higher signal-to-noise ratio than competing data converters, while minimizing noise at high frequencies. In low-latency mode, the ADS12711 delivers 25% lower latency at up to 1,067kSPS and 83.3% lower offset drift—50 nV/°C—to help designers improve DC measurement resolution, data throughput and response times in data acquisition and condition-monitoring applications.

Until now, miniaturized, battery-powered industrial equipment designers had to choose between an ADC’s size and measurement precision at higher frequencies, says TI. The ADS127L11 eliminates this trade-off. In a 3-mm-by-3-mm quad flat no-lead (WQFN) package, this single-channel device is 50% smaller than the closest competing ADCs. In addition to reducing design size, the new ADC increases system functionality by enabling designers to pack additional channels into a compact design. To learn more about how to optimize channel density by using multiple ADC channels operating in simultaneous-sampling mode, read the application brief, “ADS127L11 in Simultaneous-Sampling Systems.”

The ADS127L11 consumes half the power of other ADCs, enabling designs such as portable electroencephalogram (EEG) machines and power-quality analyzers to better optimize power consumption against bandwidth requirements using the device’s power-scalable modes. Power consumption is as low as 3.3mW with sampling rates as high as 50kSPS, improving signal resolution and battery life. Read more about the benefits of this lower power consumption in the article, “Balancing ADC size, power, resolution and bandwidth in precision data-acquisition systems.”

The ADS127L11 is available for purchase on TI.com, and comes in a 20-pin, 3-mm-by-3-mm WQFN package or a 20-pin, 6.5-mm-by-4.4-mm thin shrink small-outline package (TSSOP). Pricing starts at US$5.75 in 1,000-unit quantities. Evaluation modules are available on TI.com for US$149.00. TI offers multiple convenient payment and shipping options on TI.com.

Texas Instruments | www.tI.com

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Tiny 24-bit Precision Wideband ADC Rolls

by Circuit Cellar Staff time to read: 2 min