MCP6141 datasheet(14/32 Pages) MICROCHIP

Numer części	MCP6141

Szczegółowy opis	600 nA, Non-Unity Gain Rail-to-Rail Input/Output Op Amps

PDF	32 Pages

Scroll/Zoom	100%

Producent	MICROCHIP [Microchip Technology]

Strona internetowa	http://www.microchip.com

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14 / 32 page

MCP6141/2/3/4

21668A-page 14

2002 Microchip Technology Inc.

In this configuration, the amplifier outputs the sum of

the three input voltages. The ratio of the sum and the

output voltage is defined using the feedback and input

resistors. VREF is used to offset the output voltage. This

family of amplifiers is stable for noise gain (Gn) of 10 V/

V or higher. The Gn and the signal gain of the summing

amplifier is calculated as shown below:

EQUATION

At a noise gain of 10 V/V, the amplifier bandwidth is

approximately 10 kHz. The bandwidth to quiescent cur-

rent ratio of MCP6141/2/3/4 makes this device an

appropriate choice for battery-powered applications.

1RF

------





10 V/V

≥

Noise Gain:

Signal Gain:

V01

–

--------- V1

V02

–

--------- V2

V03

–

--------- V3

V04

------



 V

REF

VOUT

VREF V1

–

-----------------------

VREF V2

–

-----------------------

VREF V3

–

-----------------------

VREF

VOUT

V01 V02 V03 V04

+++

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