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AD7949 Datasheet 250 kSPS PulSAR ADC

Manufacturer: Analog Devices

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General Description

The AD7949 is an 8-channel, 14-bit, charge redistribution successive approximation register (SAR) analog-to-digital converter (ADC) that operates from a single power supply, VDD.

The AD7949 contains all components for use in a multichannel, low power data acquisition system, including a true 14-bit SAR ADC with no missing codes;

an 8-channel, low crosstalk multiplexer that is useful for configuring the inputs as singleended (with or without ground sense), differential, or bipolar;

Overview

14-Bit, 8-Channel, 250 kSPS PulSAR ADC AD7949.

Key Features

  • 14-bit resolution with no missing codes 8-channel multiplexer with choice of inputs Unipolar single-ended Differential (GND sense) Pseudobipolar Throughput: 250 kSPS INL/DNL: ±0.5/±0.25 LSB typical SINAD: 85 dB @ 20 kHz THD:.
  • 100 dB @ 20 kHz Analog input range: 0 V to VREF with VREF up to VDD Multiple reference types Internal selectable 2.5 V or 4.096 V External buffered (up to 4.096 V) External (up to VDD) Internal temperature sensor (TEMP) Channel sequencer, selectable 1-pole filter, b.

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