MCP621 datasheet(29/68 Pages) MICROCHIP

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DS20002188E-page 29

MCP621/1S/2/3/4/5/9

5.0

DESIGN AIDS

Microchip provides the basic design aids needed for

the MCP621/1S/2/3/4/5/9 family of op amps.

5.1

SPICE Macro Model

The latest SPICE macro model for the MCP621/1S/2/

3/4/5/9 op amps is available on the Microchip web site

at www.microchip.com. This model is intended to be an

initial design tool that works well in the op amp’s linear

region of operation over the temperature range. See

the model file for information on its capabilities.

Bench testing is a very important part of any design and

cannot be replaced with simulations. Also, simulation

results using this macro model need to be validated by

comparing them to the data sheet specifications and

characteristic curves.

5.2

FilterLab® Software

Microchip’s FilterLab® software is an innovative

software tool that simplifies analog active filter (using

op amps) design. Available at no cost from the

Microchip web site at www.microchip.com/filterlab, the

Filter-Lab design tool provides full schematic diagrams

of the filter circuit with component values. It also

outputs the filter circuit in SPICE format, which can be

used with the macro model to simulate actual filter

performance.

5.3

Microchip Advanced Part Selector

(MAPS)

MAPS is a software tool that helps efficiently identify

Microchip devices that fit a particular design

requirement. Available at no cost from the Microchip

web site at www.microchip.com/maps, the MAPS is an

overall selection tool for Microchip’s product portfolio

that includes Analog, Memory, MCUs and DSCs. Using

this tool, a customer can define a filter to sort features

for a parametric search of devices and export

side-by-side technical comparison reports. Helpful links

are also provided for data sheets, purchase and

sampling of Microchip parts.

5.4

Analog Demonstration and

Evaluation Boards

Microchip offers a broad spectrum of Analog

Demonstration and Evaluation Boards that are

designed to help customers achieve faster time to

market. For a complete listing of these boards and their

corresponding user’s guides and technical information,

visit the Microchip web site at www.microchip.com/

analog tools.

Some boards that are especially useful are:

• MCP6XXX Amplifier Evaluation Board 1

• MCP6XXX Amplifier Evaluation Board 2

• MCP6XXX Amplifier Evaluation Board 3

• MCP6XXX Amplifier Evaluation Board 4

• Active Filter Demo Board Kit

• 8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board,

P/N SOIC8EV

5.5

Application Notes

The following Microchip Application Notes are

available on the Microchip web site at www.microchip.

com/appnotes and are recommended as supplemental

reference resources.

• ADN003: “Select the Right Operational Amplifier

for your Filtering Circuits” (DS21821)

• AN722: “Operational Amplifier Topologies and DC

Specifications” (DS00722)

• AN723: “Operational Amplifier AC Specifications

and Applications” (DS00723)

• AN884: “Driving Capacitive Loads With Op Amps”

(DS00884)

• AN990: “Analog Sensor Conditioning Circuits –

An Overview” (DS00990)

• AN1177: “Op Amp Precision Design: DC Errors”

(DS01177)

• AN1228: “Op Amp Precision Design: Random

Noise” (DS01228)

• AN1332: “Current Sensing Circuit Concepts and

Fundamentals” (DS01332)

Some of these application notes, and others, are listed

in the design guide:

• “Signal Chain Design Guide” (DS21825)

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