Datasheet MCP6441, MCP6442, MCP6444 (Microchip) - 17

MCP6441/2/4 5.0 DESIGN AIDS 5.4 Analog Demonstration and Evaluation Boards
Microchip provides the basic design tools needed for the MCP6441/2/4 op amp. Microchip offers a broad spectrum of Analog Demonstration and Evaluation Boards that are
5.1 SPICE Macro Model
designed to help you achieve faster time to market. For a complete listing of these boards and their The latest SPICE macro model for the MCP6441/2/4 corresponding user’s guides and technical information, op amp is available on the Microchip web site at visit the Microchip web site at www.microchip.com. The model was written and tested www.microchip.com/analogtools. in the official OrCAD (Cadence®) owned PSpice®. For the other simulators, translation may be required. Some boards that are especially useful are: The model covers a wide aspect of the op amp's • MCP6XXX Amplifier Evaluation Board 1 electrical specifications. Not only does the model cover • MCP6XXX Amplifier Evaluation Board 2 voltage, current and resistance of the op amp, but it • MCP6XXX Amplifier Evaluation Board 3 also covers the temperature and the noise effects on • MCP6XXX Amplifier Evaluation Board 4 the behavior of the op amp. The model has not been • Active Filter Demo Board Kit verified outside of the specification range listed in the • 5/6-Pin SOT-23 Evaluation Board, P/N VSUPEV2 op amp data sheet. The model behaviors under these conditions cannot ensure it will match the actual op amp performance.
5.5 Application Notes
Moreover, the model is intended to be an initial design The following Microchip Analog Design Note and tool. Bench testing is a very important part of any Application Notes are available on the Microchip web design and cannot be replaced with simulations. Also, site at www.microchip.com/appnotes, and are simulation results using this macro model need to be recommended as supplemental reference resources. validated by comparing them to the data sheet •
ADN003 –
“Select the Right Operational Amplifier specifications and characteristic curves. for your Filtering Circuits”, DS21821
5.2 FilterLab® Software
•
AN722 –
“Operational Amplifier Topologies and DC Specifications”, DS00722 Microchip’s FilterLab software is an innovative software •
AN723 –
“Operational Amplifier AC Specifications tool that simplifies analog active filter design using op and Applications”, DS00723 amps. Available at no cost from the Microchip web site •
AN884 –
“Driving Capacitive Loads With Op at www.microchip.com/filterlab, the FilterLab design Amps”, DS00884 tool provides full schematic diagrams of the filter circuit •
AN990 –
“Analog Sensor Conditioning Circuits – with component values. It also outputs the filter circuit An Overview”, DS00990 in SPICE format, which can be used with the macro •
AN1177 –
“Op Amp Precision Design: DC Errors”, model to simulate the actual filter performance. DS01177
5.3 Microchip Advanced Part Selector
•
AN1228 –
“Op Amp Precision Design: Random Noise”, DS01228
(MAPS) • AN1297 –
“Microchip’s Op Amp SPICE Macro MAPS is a software tool that helps semiconductor Models”, DS01297 professionals efficiently identify the Microchip devices
• AN1332:
“Current Sensing Circuit Concepts and that fit a particular design requirement. Available at no Fundamentals”’ DS01332 cost from the Microchip website at These application notes and others are listed in the www.microchip.com/ maps, the MAPS is an overall design guide: selection tool for Microchip’s product portfolio that includes Analog, Memory, MCUs and DSCs. Using this • “Signal Chain Design Guide”, DS21825 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 Data Sheets, Purchase and Sampling of Microchip parts. © 2010-2012 Microchip Technology Inc. DS22257C-page 17 Document Outline 1.0 Electrical Characteristics 2.0 Typical Performance Curves FIGURE 2-1: Input Offset Voltage. FIGURE 2-2: Input Offset Voltage Drift. FIGURE 2-3: Input Offset Voltage vs. Common Mode Input Voltage with VDD = 6.0V. FIGURE 2-4: Input Offset Voltage vs. Common Mode Input Voltage with VDD = 1.4V. FIGURE 2-5: Input Offset Voltage vs. Output Voltage. FIGURE 2-6: Input Offset Voltage vs. Power Supply Voltage. FIGURE 2-7: Input Noise Voltage Density vs. Frequency. FIGURE 2-8: Input Noise Voltage Density vs. Common Mode Input Voltage. FIGURE 2-9: CMRR, PSRR vs. Frequency. FIGURE 2-10: CMRR, PSRR vs. Ambient Temperature. FIGURE 2-11: Input Bias, Offset Current vs. Ambient Temperature. FIGURE 2-12: Input Bias Current vs. Common Mode Input Voltage. FIGURE 2-13: Quiescent Current vs. Ambient Temperature. FIGURE 2-14: Quiescent Current vs. Power Supply Voltage. FIGURE 2-15: Open-Loop Gain, Phase vs. Frequency. FIGURE 2-16: DC Open-Loop Gain vs. Power Supply Voltage. FIGURE 2-17: DC Open-Loop Gain vs. Output Voltage Headroom. FIGURE 2-18: Gain Bandwidth Product, Phase Margin vs. Ambient Temperature. FIGURE 2-19: Gain Bandwidth Product, Phase Margin vs. Ambient Temperature. FIGURE 2-20: Output Short Circuit Current vs. Power Supply Voltage. FIGURE 2-21: Output Voltage Swing vs. Frequency. FIGURE 2-22: Output Voltage Headroom vs. Output Current. FIGURE 2-23: Output Voltage Headroom vs. Ambient Temperature. FIGURE 2-24: Slew Rate vs. Ambient Temperature. FIGURE 2-25: Small Signal Non-Inverting Pulse Response. FIGURE 2-26: Small Signal Inverting Pulse Response. FIGURE 2-27: Large Signal Non-Inverting Pulse Response. FIGURE 2-28: Large Signal Inverting Pulse Response. FIGURE 2-29: The MCP6441/2/4 Device Shows No Phase Reversal. FIGURE 2-30: Closed Loop Output Impedance vs. Frequency. FIGURE 2-31: Measured Input Current vs. Input Voltage (below VSS). FIGURE 2-32: Channel-to-Channel Separation vs. Frequency (MCP6442/4 only). 3.0 Pin Descriptions TABLE 3-1: Pin Function Table 4.0 Application Information FIGURE 4-1: Simplified Analog Input ESD Structures. FIGURE 4-2: Protecting the Analog Inputs. FIGURE 4-3: Protecting the Analog Inputs. FIGURE 4-4: Output Resistor, RISO Stabilizes Large Capacitive Loads. FIGURE 4-5: Recommended RISO Values for Capacitive Loads. FIGURE 4-6: Example Guard Ring Layout for Inverting Gain. FIGURE 4-7: Battery Current Sensing. FIGURE 4-8: Precision Half-Wave Rectifier. FIGURE 4-9: Two Op Amp Instrumentation Amplifier. 5.0 Design Aids 6.0 Packaging Information 6.1 Package Marking Information Appendix A: Revision History Product Identification System Trademarks Worldwide Sales and Service