TI ADC pushes data-acquisition performance higher
Article By : Texas Instruments Inc.
TI's latest 24-bit wideband ADCs deliver industry-leading signal-measurement precision at wider bandwidths than competing devices.
Texas Instruments Inc. (TI) has launched a 24-bit wideband analog-to-digital converter (ADC) that delivers industry-leading signal-measurement precision at wider bandwidths than competing ADCs. The ADS127L11, the newest product in TI’s portfolio of precision wideband ADCs, 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 highly flexible 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. 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. The ADS127L11 eliminates this trade-off. In a 3-by-3mm 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.
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.
