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AD7770 - Simultaneous Sampling ADC

Description

The AD7770 is an 8-channel, simultaneous sampling ADC.

Eight full sigma-delta (Σ-Δ) ADCs are on chip.

The AD7770 provides a low input current to allow direct sensor connection.

Features

  • 8-channel, 24-bit simultaneous sampling analog-to-digital converter (ADC) Single-ended or true differential inputs Programmable gain amplifier (PGA) per channel (gains of 1, 2, 4, and 8) Low dc input current ±4 nA (differential) and ±8 nA (single-ended) Up to 32 kSPS output data rate (ODR) per channel Programmable ODRs and bandwidth Sample rate converter (SRC) for coherent sampling Sampling rate resolution up to 15.2 × 10.
  • 6 SPS Low latency sinc3 filter path Adjustable phase synchronizati.

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Full PDF Text Transcription

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Data Sheet FEATURES 8-channel, 24-bit simultaneous sampling analog-to-digital converter (ADC) Single-ended or true differential inputs Programmable gain amplifier (PGA) per channel (gains of 1, 2, 4, and 8) Low dc input current ±4 nA (differential) and ±8 nA (single-ended) Up to 32 kSPS output data rate (ODR) per channel Programmable ODRs and bandwidth Sample rate converter (SRC) for coherent sampling Sampling rate resolution up to 15.2 × 10−6 SPS Low latency sinc3 filter path Adjustable phase synchronization Internal 2.5 V reference Two power modes optimizing power dissipation and performance: high resolution mode and low power mode Low resolution successive approximation register (SAR) ADC for system and chip diagnostics Power supply Bipolar (±1.65 V) or unipolar (3.
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