ACPL-7970 Datasheet (AVAGO) - Optically Isolated Sigma-Delta Modulator

ACPL-7970, Optically Isolated Sigma-Delta Modulator

The ACPL-7970 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-7970 operates from a 5 V power supply with dynamic range of 78 dB with an appropriate digital filter.

ACPL-7970 Features

* 10 MHz internal clock

* 1-bit, second-order sigma-delta modulator

* 16 bits resolution no missing codes (12 bits ENOB)

* 78 dB SNR

* 6 mV/°C maximum offset drift

* ±1% maximum gain error

* Internal reference voltage

* ±200 mV linear r