MCP6XXX Amplifier Evaluation Board 3 User’s Guide
The power supply voltage needs to be in the allowed range for the installed op amps.
Any of Microchip’s op amps that operate below 5.5V can be used. Moreover, the power
supply is protected by a zener diode with nominal voltage 6.2V and bypassed by a
1.0 μF capacitor. (See Figure 2-3: “Power Supply Block.” )
The mid-supply reference consists of a voltage divider and a buffer amplifier. (See
The resistors that are part of an amplifier are placed in pin sockets which are labeled.
All of the component labels on board keep consistent with those on the schematic
generated in the Mindi? Amplifier Designer. The op amps are bypassed by 0.1 μF
capacitors and the single op amp U1 can have either a PDIP-8 or SOIC-8 package.
? PDIP-8 packages are inserted into the DIP-8 socket to the right of the U1 label
? SOIC-8 packages can be accommodated; see Section 2.4.3 “Amplifier
The (surface mount) test points for power supply, ground, input signal and output signal
allow lab equipment to be connected to the board. The MCP6XXX Amplifier Evaluation
Board 3 top view is shown in Figure 2-2.
DS51673A-page 8
FIGURE 2-2:
MCP6XXX Amplifier Evaluation Board 3 Top View.
? 2007 Microchip Technology Inc.
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