AD7750 Product to Frequency Converter Datasheet

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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

Choice of On-Chip or External Reference

Choice of Output Pulse Frequencies Available

High Frequency Pulse Output for Calibration Purposes

HPF on Current Channel for Offset Removal

Single 5V Supply and Low Power

Pin Layout

Pin Description

Pin Number	Description
1	Vdd - Positive Supply
2	G1 - Gain Select
3	V1+ - CH1 Differential Inputs
4	V1- - CH1 Differential Inputs
5	AGND - Analog Ground
6	V2+ - CH2 Differential Inputs
7	V2- - CH2 Differential Inputs
8	REFOUT - Internal Reference Output
9	REFIN - Reference Input
10	DGND - Digital Ground
11	FS - Frequency Select
12	S2 - Mode Selection
13	S1 - Mode Selection
14	ACDC - High Pass Filter Control
15	CLKIN - Clock In
16	CLKOUT - Clock Out
17	REVP - Reverse Polarity
18	Fout - High-Speed Frequency Output
19	F2 - Frequency Output
20	F1 - Frequency Output

Dimensional Drawing

Technical Data

Datasheet

Analog Devices website - Datasheet for AD7750

Application Notes