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ADS1281 - ADC

Datasheet Summary

Description

The ADS1281 is an extremely high-performance, single-chip analog-to-digital converter (ADC) designed for the demanding needs of energy exploration and seismic monitoring environments.

The single-chip design promotes board area savings for improvements in high-density applications.

Features

  • 1.
  • 2 High Resolution:.
  • 130dB SNR (250SPS).
  • 127dB SNR (500SPS).
  • High Accuracy:.
  • THD:.
  • 122dB (typ),.
  • 115dB (max).
  • INL: 0.6ppm.
  • Inherently Stable Modulator with Fast Responding Over-Range Detection.
  • Flexible Digital Filter:.
  • Sinc + FIR + IIR (Selectable).
  • Linear or Minimum Phase Response.
  • Programmable High-Pass Filter.
  • Selectable FIR Data Rates:.
  • 250SPS to 4kSPS.

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Full PDF Text Transcription

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ADS1281 ADS1281 www.ti.com SBAS378D – AUGUST 2007 – REVISED JUNE 2010 High-Resolution Analog-to-Digital Converter Check for Samples: ADS1281 FEATURES 1 •2 High Resolution: – 130dB SNR (250SPS) – 127dB SNR (500SPS) • High Accuracy: – THD: –122dB (typ), –115dB (max) – INL: 0.6ppm • Inherently Stable Modulator with Fast Responding Over-Range Detection • Flexible Digital Filter: – Sinc + FIR + IIR (Selectable) – Linear or Minimum Phase Response – Programmable High-Pass Filter – Selectable FIR Data Rates: – 250SPS to 4kSPS • Filter Bypass Option • Low Power Consumption: – Operating: 12mW – Shutdown: 10mW • Calibration Engine for Offset and Gain Correction • SYNC Input • Analog Supply: – Unipolar (+5V) or Bipolar (±2.5V) • Digital Supply: 1.8V to 3.
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