User manual

MCP6XXX Amplifier Evaluation Board 2 User’s Guide
DS51668A-page 14 © 2007 Microchip Technology Inc.
Figure 2-11 shows the same circuit redrawn to emphasize the inverting summing
amplifier.
FIGURE 2-11: Inverting Summing Amplifier Supported by the MCP6XXX
Amplifier Evaluation Board 2 Kit.
Each of the components in Figure 2-11 that needs to be inserted in a socket on the
MCP6XXX Amplifier Evaluation Board 2 is listed in Table 2-1 and Table 2-2.
TABLE 2-1: AMPLIFIER COMPONENTS LIST
TABLE 2-2: JUMPER POSITIONS
R
11
R
9
C
U1
V
R
V
L
V
OUT
Output
Load
Mid-supply
Reference
V
IN-1
R
1
R
2
R
3
U
1
V
S
V
DD
Power
Supply
V
IN-2
V
IN-3
PCB Labels Component Values
R1 7.96 kΩ
R2 7.96 kΩ
R3 7.96 kΩ
R9 2.00 kΩ
R11 7.96 kΩ
RISO 0Ω
RL 7.96 kΩ
CL 56 nF
U1 MCP6021, PDIP-8, 10 MHz
Jumper Position
JP1 A
JP2 C