Datasheet

MCP6286
DS22196A-page 12 © 2009 Microchip Technology Inc.
Note: Unless otherwise indicated, T
A
= +25°C, V
DD
= +1.8V to +6.0V, V
SS
= GND, V
CM
= V
DD
/3, V
OUT
≈ V
DD
/2,
V
L
= V
DD
/2, R
L
= 10 kΩ to V
L
and C
L
= 60 pF.
FIGURE 2-31: The MCP6286 Shows No
Phase Reversal.
FIGURE 2-32: Closed Loop Output
Impedance vs. Frequency.
FIGURE 2-33: Measured Input Current vs.
Input Voltage (below V
SS
).
-1.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
Time (1 ms/div)
Input, Output Voltages (V)
V
DD
= 5.5V
G = +2 V/V
V
OUT
V
IN
0.1
1
10
100
1000
10 100 1000 10000 100000 1E+06 1E+07
Frequency (Hz)
Closed Loop Output
Impedance (Ω)
G
N
:
101 V/V
11 V/V
1 V/V
10 100 1k 10k 100k 1M 10M
1
10
100
1000
10000
100 000
1000000
10000000
100000000
1000000000
-1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.0
V
IN
(V)
-I
IN
(A)
1m
100
µ
10
µ
1µ
100n
10n
1n
100
p
10p
1p
1m
100
µ
10
µ
1µ
100n
10n
1n
100
p
10p
1m
100
µ
10
µ
1µ
1p
100n
10n
1n
100p
10p
1m
100
µ
10µ
1µ