MCP6441/2/4
DS22257C-page 6
2010-2012 Microchip Technology Inc.
Note: Unless otherwise indicated, T
A = +25°C, VDD = +1.4V to +6.0V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2,
VL = VDD/2, RL = 1 MΩ to VL and CL = 60 pF.
FIGURE 2-7:
Input Noise Voltage Density
vs. Frequency.
FIGURE 2-8:
Input Noise Voltage Density
vs. Common Mode Input Voltage.
FIGURE 2-9:
CMRR, PSRR vs.
Frequency.
FIGURE 2-10:
CMRR, PSRR vs. Ambient
Temperature.
FIGURE 2-11:
Input Bias, Offset Current
vs. Ambient Temperature.
FIGURE 2-12:
Input Bias Current vs.
Common Mode Input Voltage.
100
1,000
0.1
1
10
100
1000
10000
Frequency (Hz)
Input
Noise
Voltage
Density
(nV/Hz)
0.1
1
10
100
1k
10k
0
50
100
150
200
250
300
350
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
Common Mode Input Voltage (V)
Input
Noise
Voltage
Density
(nV/Hz)
f = 1 kHz
VDD = 6.0 V
20
30
40
50
60
70
80
90
100
0.1
1
10
100
1000
Frequency (Hz)
CM
RR,
PS
R
(d
B
)
CMRR
PSRR-
PSRR+
c
Representative Part
50
55
60
65
70
75
80
85
90
95
100
-50
-25
0
25
50
75
100
125
Ambient Temperature (°C)
CM
RR,
PS
RR
(
d
B
)
PSRR (VDD = 1.4V to 6.0V, VCM = VSS)
CMRR (VDD CM = -0.3V to 6.3V)
CMRR (VDD = 1.4V, VCM = -0.3V to 1.7V)
1
10
100
1000
25
45
65
85
105
125
Ambient Temperature (°C)
In
pu
t
B
ia
san
d
O
ff
se
t
C
u
rr
en
ts
(p
A
)
Input Bias Current
VDD = 6.0V
Input Offset Current
1
10
100
1000
0.
0
0.
5
1.
0
1.
5
2.
0
2.
5
3.
0
3.
5
4.
0
4.
5
5.
0
5.
5
6.
0
Common Mode Input Voltage (V)
In
pu
t
B
ias
C
u
rr
e
nt
(
p
A
)
VDD = 6.0V
TA = +125°C
TA = +85°C