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ACPL-796J Datasheet Optically Isolated Sigma-Delta Modulator

Manufacturer: Avago Technologies (now Broadcom)

General Description

The ACPL-796J is a 1-bit, second-order sigma-delta () modulator converts an analog input signal into a highspeed data stream with galvanic isolation based on optical coupling technology.

The ACPL-796J operates from a 5 V power supply with dynamic range of 80 dB with an appropriate digital filter.

The differential inputs of ±200 mV (full scale ±320 mV) are ideal for direct connection to shunt resistors or other low-level signal sources in applications such as motor phase current measurement.

Overview

ACPL-796J Optically Isolated Sigma-Delta Modulator Data Sheet.

Key Features

  • 5 MHz to 20 MHz external clock input range.
  • 1-bit, second-order sigma-delta modulator.
  • 16 bits resolution no missing codes (12 bits ENOB).
  • 74 dB minimum SNR.
  • 3.5 V/°C maximum offset drift.
  • ±1% maximum gain error.
  • Internal reference voltage.
  • ±200 mV linear range with single 5 V supply.
  • 3 V to 5.5 V wide supply range for digital interface.
  • 40°C to +105°C operating temperature range.
  • SO-16 package.
  • 25 kV/s common-mode transient.