Installation and Operation
2.3.1.4
INVERTING AMPLIFIER
? Amplifies a voltage with an inverting gain. Input and output voltages are shifted by
a reference voltage for single supply.
? The Mindi? Amplifier Designer gives design recommendations for an inverting
amplifier circuit; see the circuit diagram shown in Figure 2-6
- Fill the sockets with the recommended resistors and capacitors
- Set JP1 and JP2 in the correct positions
(for the given example, JP1: Position B, JP2: Position C)
V S
V DD
Power
Supply
Mid-supply
Reference
V R R 5
C U1
U 1
V OUT
Output
Load
V L
V IN
R 2
R 3
FIGURE 2-6:
Inverting Amplifier Circuit Diagram.
Figure 2-7 shows an example of the inverting amplifier circuit diagram supported by
MCP6XXX Amplifier Evaluation Board 1.
* Test Points
VDD
CR2
0.1 μF
RR1
20 k Ω
RR2
20 k Ω
0.1 μF
CR1
UR1
JP2
C
D
R5
C4
R6
VDD
0.1 μF
Power Supply
VDD
VREF
C2
R4
CU1
U1
DP1
CP1
R1
R2
R3
1.0 μF
GND
C1
C3
RISO
V IN
JP1
A
C5
R7
CL
RL
VL
GND
B
FIGURE 2-7:
Inverting Amplifier Example Supported by the MCP6XXX
Amplifier Evaluation Board 1.
? 2007 Microchip Technology Inc.
DS51667A-page 11
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