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AD7750 Datasheet Product-to-Frequency Converter

Manufacturer: Analog Devices

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General Description

PRODUCT HIGHLIGHTS The AD7750 is a Product-to-Frequency Converter (PFC) that can be configured for power measurement or voltage-tofrequency conversion.

The part contains the equivalent of two channels of A/D conversion, a multiplier, a digital-to-frequency converter, a reference and other conditioning circuitry.

Channel 1 has a differential gain amplifier with selectable gains of 1 or 16.

Overview

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Key Features

  • Two Differential Analog Input Channels Product of Two Channels Voltage-to-Frequency Conversion on a Single Channel Real Power Measurement Capability < 0.2% Error Over the Range 400% Ibasic to 2% Ibasic Two or Four Quadrant Operation (Positive and Negative Power) Gain Select of 1 or 16 on the Current Channel (Channel 1) Choice of On-Chip or External Reference Choice of Output Pulse Frequencies Available (Pins F1 and F2) High Frequency Pulse Output for Calibration Purposes (FOUT ) HPF on Current C.

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