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ACPL-7970

AVAGO
Part Number ACPL-7970
Manufacturer AVAGO
Description Optically Isolated Sigma-Delta Modulator
Published Feb 21, 2017
Detailed Description ACPL-7970 Optically Isolated Sigma-Delta Modulator Data Sheet Description The ACPL-7970 is a 1-bit, second-order sigma-...
Datasheet PDF File ACPL-7970 PDF File

ACPL-7970
ACPL-7970

Overview
ACPL-7970 Optically Isolated Sigma-Delta Modulator Data Sheet Description 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.
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.
The analog input is continuously sampled by a means of sigma-delta over-sampling using an on-board clock.
The signal information is contained in the modulator data, as a density of ones with data rate of 10 MHz, and the data are encoded and transmitted across the isolation boundary where they are recovered and decoded into high-speed data stream of digital ones and zeros.
The original signal information can be recons...


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