Datasheet

MCP6441/2/4
DS22257C-page 10 © 2010-2012 Microchip Technology Inc.
Note: Unless otherwise indicated, T
A
= +25°C, V
DD
= +1.4V to +6.0V, 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
and C
L
= 60 pF.
FIGURE 2-31: Measured Input Current vs.
Input Voltage (below V
SS
).
FIGURE 2-32: Channel-to-Channel
Separation vs. Frequency (MCP6442/4 only).
1.E-12
1.E-11
1.E-10
1.E-09
1.E-08
1.E-07
1.E-06
1.E-05
1.E-04
1.E-03
-1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.0
Input Voltage (V)
-I
IN
(A)
1m
100
µ
10µ
1µ
100n
10n
1n
100
p
10p
1p
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
T
A
= +125°C
60
70
80
90
100
110
120
130
140
150
100 1000 10000
C
h
a
n
n
e
l
t
o
C
h
a
n
n
e
l
S
e
p
a
r
a
t
i
o
n
(
d
B
)
Frequency (Hz)
1
00
1k
Input Referred
Channel to Channel Separation
(dB)
1k
100
10k