Datasheet

MCP6031/2/3/4
DS22041B-page 12 © 2008 Microchip Technology Inc.
Note: Unless otherwise indicated, T
A
= +25°C, V
DD
= +1.8V to +5.5V, V
SS
= GND, V
CM
= V
DD
/2, V
OUT
≈ V
DD
/2,
V
L
= V
DD
/2, R
L
= 1 MΩ to V
L
, C
L
= 60 pF and CS is tied low.
FIGURE 2-37: Closed Loop Output
Impedance vs. Frequency.
FIGURE 2-38: Measured Input Current vs.
Input Voltage (below V
SS
).
1
10
100
1000
10000
100000
1 10 100 1000 10000 100000
Frequency (Hz)
Closed Loop Output
Impedance (Ω)
G
N
:
101 V/V
11 V/V
1 V/V
100k
10k
1k
100
10
1
100k10k1k100101
1.00E-12
1.00E-11
1.00E-10
1.00E-09
1.00E-08
1.00E-07
1.00E-06
1.00E-05
1.00E-04
1.00E-03
1.00E-02
-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)
+125°C
+85°C
+25°C
-40°C
10m
1m
100µ
10µ
1µ
100n
10n
1n
100p
10p
1p