AD8436ACPZ-R7 datasheet(16/24 Pages) AD

部件名	AD8436ACPZ-R7

功能描述	Low Cost, Low Power, True RMS-to-DC Converter

PDF	24 Pages

Scroll/Zoom	100%

制造商	AD [Analog Devices]

网页	http://www.analog.com

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16 / 24 page

AD8436

Data Sheet

Rev. B | Page 16 of 24

AC IN

VCC

VEE

OUT

10MΩ

VEE

CAVG

VCC

OBUFOUT

IGND

OBUFIN+

OBUFIN–

OBUFV+

OUT

DNC

IBUFIN–

IBUFOUT

IBUFIN+

SUM

IBUFV+

10µF

0.47µF

OGND

IBUFGN

CCF

470pF

CAVG

10µF

DNC

RMS

CLPF

3.3µF

0.1µF

AD8436

CAPACITOR CLPF, IN CONJUNCTION WITH

THE INTERNAL 16kΩ OUTPUT RESISTOR

FILTERS THE RECTIFIED OUTPUT, YIELDING

THE AVERAGE-RECTIFIED VALUE.

CAPACITOR CAVG COMPUTES THE

MEAN IN THE IMPLICIT RMS

EXPRESSION. FOR SMALL VALUES

OF CAVG, THE AC INPUT WAVEFORM

WILL STILL BE FULLY RECTIFIED AND

APPEAR AT THE OUTPUT.

DISCONNECTING CAVG DEFAULTS THE

COMPUTED RESULT TO AVERAGE-VALUE.

A MINIMUM OF 470pF CAPACITANCE IS

REQUIRED TO MAINTAIN STABILITY

Figure 41. Configuration for Average Rectified Value

AD8436ACPZ-R7 数据表(PDF) 16 Page - Analog Devices

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