MCP6486 datasheet(18/46 Pages) MICROCHIP

Part #	MCP6486

Description	10 MHz Operational Amplifier with EMI Filtering

PDF	46 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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18 / 46 page

MCP6486/6R/6U/7/9

DS20006679A-page 18

 2022 Microchip Technology Inc. and its subsidiaries

4.9

Application Circuits

4.9.1

MULTIPLE FEEDBACK LOW-PASS

FILTER

The MCP6486/6R/6U/7/9 Op Amp can be used in

active-filter applications. Figure 4-8 shows an inverting,

third-order, multiple feedback low-pass filter that can be

used as an anti-aliasing filter.

FIGURE 4-8:

Multiple Feedback

Low-Pass Filter.

4.9.2

PHOTODIODE AMPLIFIER

Figure 4-9 shows a photodiode biased in the

photovoltaic mode for high precision. The resistor R

converts the diode current ID to the voltage VOUT. The

capacitor is used to limit the bandwidth or to stabilize

the circuit against the diode's capacitance.

FIGURE 4-9:

Photodiode Amplifier.

VOUT

MCP6486

VIN

VDD/2

VOUT

MCP6486

VDD/2

light

MCP6486 Datasheet(PDF) 18 Page - Microchip Technology