32 Bit Over-Sampling ADC with Configurable Digital Filter
Technology News
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By
Wisse Hettinga
Offset drift is 7 parts per billion per degree C, gain drift is 50 parts per billion, and the signal-to- noise ratio is 104dB at 1Msps. Such applications have traditionally used sigma delta ADCs, but the LTC2500 is much more versatile. Unlike a sigma delta ADC, the choice of digital filter is arbitrary, and the LTC2500-32 provides 78 filter options to suite a variety of applications.
The filtered output achieves up to 148 dB of dynamic range at 61sps. The LTC2500 also provides both no-latency data and filtered data simultaneously, matched perfectly in both time and analog accuracy.
See the video here.
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