Installation and Operation
2.3.1.10
NON-INVERTING DIFFERENTIATOR (NOT CURRENTLY SUPPORTED)
? Differentiates and inverts a voltage with a differentiating frequency. Additional
components(R 7 , C 3 ) achieve stabilization and noise. Input and output voltages
are shifted by a reference for single supply
? The Mindi? Amplifier Designer gives design recommendations for the non-invert-
ing differentiator circuit; see the circuit diagram shown in Figure 2-18
- Fill the sockets with the recommended resistors and capacitors
- Set JP1 and JP2 in the correct positions
(for the given example, JP1: Position A, JP2: Position C)
Note: The MCP6XXX Amplifier Evaluation Board 1 currently only supports the
non-inverting differentiator with center trip point = 2.5V.
V S
C 2
V DD
C U1
Power
Supply
V IN
R 5
U 1
V OUT
Output
Load
V L
Mid-supply
Reference
VR
R 7
C 1
R 3
C 3
FIGURE 2-18:
Non-Inverting Differentiator Circuit Diagram.
Figure 2-19 shows an example of the non-inverting differentiator 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
VIN
JP1
A
C5
R7
CL
RL
VL
GND
B
FIGURE 2-19:
Non-Inverting Differentiator Example Supported by the
MCP6XXX Amplifier Evaluation Board 1.
? 2007 Microchip Technology Inc.
DS51667A-page 17
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