LH0091 LH0091 True RMS to DC Converter

National Semiconductor

Description

LH0091 True RMS to DC Converter September 1993 LH0091 True RMS to DC Converter General .
The LH0091 rms to dc converter generates a dc output equal to the rms value of any input per the transfer function EOUT(DC) e Features Y Y Y 0 1 T.

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Datasheet Specifications

Part number: LH0091
Manufacturer: National Semiconductor
File Size: 126.53 KB
Datasheet: LH0091_NationalSemiconductor.pdf
Description: LH0091 True RMS to DC Converter

Features

* Y Y Y 0 1 T EIN2(t) dt T 0 Y Y Y The device provides rms conversion to an accuracy of 0 1% of reading using the external trim procedure It is possible to trim for maximum accuracy (0 5 mV g 0 05% typ) for decade ranges i e 10 mV x 100 mV 0 7V x 7V etc Y Y Low cost True rms conversion 0 5% of

Applications

* (All applications require power supply by-pass capacitors ) TL H 5694
* 4 CEXT t 1mF frequency t 1 kHz FIGURE 1 LH0091 Basic Connection (No Trim) 3 Typical Applications (Continued) RT e 240k CEXT t 1mF f t 1 kHz Note The easy trim procedure is used for ac coupled input signals It invol

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LH0091 LH0091 True RMS Converter National Semiconductor

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