Datasheet

© 2009-2011 Microchip Technology Inc. DS22229D-page 21
MCP6401/1R/1U/2/4/6/7/9
5.0 DESIGN AIDS
Microchip provides the basic design tools needed for
the MCP6401/1R/1U/2/4/6/7/9 family of op amps.
5.1 SPICE Macro Model
The latest SPICE macro model for the
MCP6401/1R/1U/2/4/6/7/9 op amp is available on the
Microchip web site at www.microchip.com. The model
was written and tested in official Orcad (Cadence)
owned PSPICE. For other simulators, translation may
be required.
The model covers a wide aspect of the op amp's
electrical specifications. Not only does the model cover
voltage, current, and resistance of the op amp, but it
also covers the temperature and noise effects on the
behavior of the op amp. The model has not been
verified outside of the specification range listed in the
op amp data sheet. The model behaviors under these
conditions cannot be guaranteed to match the actual
op amp performance.
Moreover, the model is intended to be an initial design
tool. 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
FilterLab 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 semiconductor
professionals efficiently identify Microchip devices that
fit a particular design requirement. Available at no cost
from the Microchip website 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, you 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 Datasheets, 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 you achieve faster time to market. For
a complete listing of these boards and their
corresponding user’s guides and technical information,
visit www.microchip.com/analogtools, the Microchip
web site.
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
• 5/6-Pin SOT-23 Evaluation Board, P/N VSUPEV2
• 8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board,
P/N SOIC8EV
• 14-Pin SOIC/TSSOP/DIP Evaluation Board, P/N
SOIC14EV
5.5 Application Notes
The following Microchip Analog Design Note and
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
• AN1297: “Microchip’s Op Amp SPICE Macro
Models”, DS01297
• AN1332: “Current Sensing Circuit Concepts and
Fundamentals”, DS01332
These application notes and others are listed in the
design guide:
• “Signal Chain Design Guide”, DS21825