MCP651/2/5
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
= 1 kΩ to V
L
, C
L
= 20 pF, and CAL/CS = V
SS
.
1.4
High Input Common
Mode Headroom (V)
1.3
V
DD
= 2.5V
1 Lot
High (V
DD
– V
CMR_H
)
1.2
1.1
1.0
-50
-25
0
25
50
75
100
Ambient Temperature (°C)
125
V
DD
= 5.5V
110
105
100
95
90
85
80
75
70
65
60
-50
-25
CMRR, PSRR (dB)
PSRR
CMRR, V
DD
= 5.5V
CMRR, V
DD
= 2.5V
0
25
50
75
Ambient Temperature (°C)
100
125
FIGURE 2-7:
High Input Common Mode
Voltage Headroom vs. Ambient Temperature.
1000
800
600
400
200
0
-200
-400
-600
-800
-1000
FIGURE 2-10:
CMRR and PSRR vs.
Ambient Temperature.
130
DC Open-Loop Gain (dB)
125
120
115
110
105
100
95
-50
-25
0
25
50
75
Ambient Temperature (°C)
100
125
V
DD
= 2.5V
V
DD
= 5.5V
Input Offset Voltage (µV)
V
DD
= 2.5V
Representative Part
-40°C
+25°C
+85°C
+125°C
-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
Input Common Mode Voltage (V)
FIGURE 2-8:
Input Offset Voltage vs.
Common Mode Voltage with V
DD
= 2.5V.
1000
800
600
400
200
0
-200
-400
-600
-800
-1000
-0.5
2.0
FIGURE 2-11:
DC Open-Loop Gain vs.
Ambient Temperature.
10,000
Input Bias, Offset Currents
(pA)
Input Offset Voltage (µV)
V
DD
= 5.5V
Representative Part
V
DD
= 5.5V
V
CM
= V
CMR_H
1,000
I
B
100
-40°C
+25°C
+85°C
+125°C
10
-I
OS
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
1
25
45
65
85
105
Ambient Temperature (°C)
125
Input Common Mode Voltage (V)
FIGURE 2-9:
Input Offset Voltage vs.
Common Mode Voltage with V
DD
= 5.5V.
FIGURE 2-12:
Input Bias and Offset
Currents vs. Ambient Temperature with
V
DD
= +5.5V.
DS22146A-page 8
©
2009 Microchip Technology Inc.
MICROCHIP [ MICROCHIP TECHNOLOGY ]
