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Date: 22-07-15

32-bit ADCs from TI offers high-resolution at low noise and offset drift

Texas Instruments has unveiled new ADC chips of high resolution but also with low noise and low offset drift. ADS1262 and ADS1263 offering 32-bit resolution with a maximum output data rate of 38 kSPS are suggested for industrial electronics applications such as of programmable logic controllers (PLCs), industrial automation equipment and sensor-measurement applications.

ADS1262 and ADS1263 features low noise of 7 nVRMS at 2.5 SPS, so that you can even measure 10 mV or even lesser signals in bridge applications. Texas instrument claims these devices feature an Offset error drift which is 80 percent lower than competitive solutions.

The ADS1262 packs a programmable gain amplifier (PGA), 2.5-V reference, oscillator, level shifter, temperature sensor, dual-excitation current sources (IDACs) and eight general-purpose input/output (GPIO) pins. Whereas in ADS1263 you also have an auxiliary 24-bit delta-sigma ADC for systems needing parallel main-channel conversions, sensor-temperature compensation or sensor diagnostics.

ADS1262 and ADS1263 feature internal signal-chain monitoring, data-error detection, sensor-burnout detection and a test digital-to-analog converter (DAC)

ADS1262 and ADS1263 operate in the temperature range of -40°C to +125C, higher compared to competing products .

Package, price and availability: The ADS1262 is available today in a 9.7-mm-by-6.4-mm thin-shrink small outline package (TSSOP) for US$9.10. The ADS1263 is also available in a 9.7-mm-by-6.4-mm TSSOP for $12.65. All pricing is in 1,000-unit quantities.

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