MCP621/1S/2/3/4/5/9
DS22188C-page 10
2009-2011 Microchip Technology Inc.
Note: Unless otherwise indicated, TA =+25°C, VDD = +2.5V to 5.5V, VSS = GND, VCM =VDD/3, VOUT =VDD/2,
VL =VDD/2, RL =2 kΩ to VL, CL = 50 pF, and CAL/CS =VSS.
FIGURE 2-7:
High Input Common Mode
Voltage Headroom vs. Ambient Temperature.
FIGURE 2-8:
Input Offset Voltage vs.
Common Mode Voltage with VDD =2.5V.
FIGURE 2-9:
Input Offset Voltage vs.
Common Mode Voltage with VDD =5.5V.
FIGURE 2-10:
CMRR and PSRR vs.
Ambient Temperature.
FIGURE 2-11:
DC Open-Loop Gain vs.
Ambient Temperature.
FIGURE 2-12:
Input Bias and Offset
Currents vs. Ambient Temperature with
VDD =+5.5V.
1.0
1.1
1.2
1.3
1.4
-50
-25
0
255075
100
125
Ambient Temperature (°C)
H
ig
h
In
p
u
tC
o
mmo
n
M
o
de
H
ead
ro
o
m
(V
)
VDD = 2.5V
VDD = 5.5V
1 Lot
High (VDD – VCMR_H)
-1000
-800
-600
-400
-200
0
200
400
600
800
1000
-0.
6
-0.
4
-0.
2
0.
0
0.
2
0.
4
0.
6
0.
8
1.
0
1.
2
1.
4
1.
6
1.
8
2.
0
Input Common Mode Voltage (V)
In
put
Of
fset
V
o
lt
age
(V
)
VDD = 2.5V
Representative Part
+125°C
+85°C
+25°C
-40°C
-1000
-800
-600
-400
-200
0
200
400
600
800
1000
-0
.5
0.
0
0.
5
1.
0
1.
5
2.
0
2.
5
3.
0
3.
5
4.
0
4.
5
5.
0
Input Common Mode Voltage (V)
Inpu
tOf
fset
V
o
lt
age
(V
)
VDD = 5.5V
Representative Part
+125°C
+85°C
+25°C
-40°C
60
65
70
75
80
85
90
95
100
105
110
-50
-25
0
25
50
75
100
125
Ambient Temperature (°C)
CM
RR
,PSRR
(d
B)
PSRR
CMRR, VDD = 5.5V
CMRR, VDD = 2.5V
100
105
110
115
120
125
130
-50
-25
0
25
50
75
100
125
Ambient Temperature (°C)
D
C
Open-
Loop
Gai
n
(d
B
)
VDD = 5.5V
VDD = 2.5V
1
10
100
1,000
10,000
25
45
65
85
105
125
Ambient Temperature (°C)
Input
B
ias
,Of
fs
et
C
u
rrent
s
(p
A
)
VDD = 5.5V
VCM = VCMR_H
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