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ADS1278-EP Datasheet 24-Bit ADC

Manufacturer: Texas Instruments

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General Description

Based on the single-channel ADS1271, the ADS1278 (octal) is a 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) with data rates up to 128 k samples per second (SPS), allowing simultaneous sampling of eight channels.

Traditionally, industrial delta-sigma ADCs offering good drift performance use digital filters with large passband droop.

As a result, they have limited signal bandwidth and are mostly suited for dc measurements.

Overview

ADS1278-EP www.ti.com SBAS579 – AUGUST 2012 OCTAL SIMULTANEOUS-SAMPLING 24-BIT ANALOG-TO-DIGITAL CONVERTER Check for Samples:.

Key Features

  • 1.
  • 234 Simultaneously Measure Eight Channels.
  • Up to 128-kSPS Data Rate.
  • AC Performance: 62-kHz Bandwidth 111-dB SNR (High-Resolution Mode).
  • 108-dB THD.
  • DC Accuracy: 0.8-μV/°C Offset Drift 1.3-ppm/°C Gain Drift.
  • Selectable Operating Modes: High-Speed: 128 kSPS, 106 dB SNR High-Resolution: 52 kSPS, 111 dB SNR Low-Power: 52 kSPS, 31 mW/ch Low-Speed: 10 kSPS, 7 mW/ch.
  • Linear Phase Digital Filter.
  • SPI™ or Frame-Sync Serial Interfac.

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