Datasheet

MCP631/2/3/4/5/9
DS22197B-page 8  2009-2011 Microchip Technology Inc.
Note: Unless otherwise indicated, T
A
=+25°C, V
DD
= +2.5V to 5.5V, V
SS
= GND, V
CM
=V
DD
/3, V
OUT
=V
DD
/2,
V
L
=V
DD
/2, R
L
=2kto V
L
, C
L
= 50 pF and CS =V
SS
.
FIGURE 2-7: Input Offset Voltage vs.
Common Mode Voltage with V
DD
=2.5V.
FIGURE 2-8: Input Offset Voltage vs.
Common Mode Voltage with V
DD
=5.5V.
FIGURE 2-9: CMRR and PSRR vs.
Ambient Temperature.
FIGURE 2-10: DC Open-Loop Gain vs.
Ambient Temperature.
FIGURE 2-11: DC Open-Loop Gain vs.
Load Resistance.
FIGURE 2-12: Input Bias and Offset
Currents vs. Ambient Temperature with
V
DD
=+5.5V.
-2.0
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
-0.5
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Input Common Mode Voltage (V)
Input Offset Voltage (mV)
V
DD
= 2.5V
Representative Part
+125°C
+85°C
+25°C
-40°C
-2.0
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
-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
Input Common Mode Voltage (V)
Input Offset Voltage (mV)
V
DD
= 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)
CMRR, PSRR (dB)
PSRR
CMRR, V
DD
= 2.5V
CMRR, V
DD
= 5.5V
100
105
110
115
120
125
130
-50 -25 0 25 50 75 100 125
Ambient Temperature (°C)
DC Open-Loop Gain (dB)
V
DD
= 5.5V
V
DD
= 2.5V
95
100
105
110
115
120
125
130
1.E+02 1.E+03 1.E+04 1.E+05
Load Resistance (Ω)
DC Open-Loop Gain (dB)
V
DD
= 5.5V
V
DD
= 2.5V
100 1k 10k
100k
1.E-12
1.E-11
1.E-10
1.E-09
1.E-08
25 45 65 85 105 125
Ambient Temperature (°C)
Input Bias, Offset Currents
(pA)
V
DD
= 5.5V
V
CM
= V
CMR_H
| I
OS
|
I
B
1p
10p
100p
1n
10n