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AD7949 - 250 kSPS PulSAR ADC

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.

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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Datasheet preview – AD7949

Datasheet Details

Part number AD7949
Manufacturer Analog Devices
File Size 788.69 KB
Description 250 kSPS PulSAR ADC
Datasheet download datasheet AD7949 Datasheet
Additional preview pages of the AD7949 datasheet.

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Full PDF Text Transcription

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14-Bit, 8-Channel, 250 kSPS PulSAR ADC AD7949 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, busy indicator No pipeline delay, SAR architecture Single-supply 2.3 V to 5.5 V operation with 1.8 V to 5.5 V logic interface Serial interface compatible with SPI, MICROWIRE, QSPI, and DSP Power dissipation 2.9 mW @ 2.5 V/200 kSPS 10.
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