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ADS1258 Datasheet 24-Bit ADC

Manufacturer: Texas Instruments

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General Description

The ADS1258 is a 16-channel (multiplexed), low-noise, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel.

A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5V or true bipolar range of ±2.5V when operating with a 5V reference.

The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance.

Overview

ADS1258 ADS1258 www.ti.com SBAS297G – JUNE 2005 – REVISED MARCH 2011 16-Channel, 24-Bit Analog-to-Digital Converter Check for Samples:.

Key Features

  • 1.
  • 23 24 Bits, No Missing Codes.
  • Fixed-Channel or Automatic Channel Scan.
  • Fixed-Channel Data Rate: 125kSPS.
  • Auto-Scan Data Rate: 23.7kSPS/Channel.
  • Single-Conversion Settled Data.
  • 16 Single-Ended or 8 Differential Inputs.
  • Unipolar (+5V) or Bipolar (±2.5V) Operation.
  • Low Noise: 2.8μVRMS at 1.8kSPS.
  • 0.0003% Integral Nonlinearity.
  • DC Stability (typical): 0.02μV/°C Offset Drift, 0.4ppm/°C Gain Drift.
  • Ope.

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