MCP631_14 Datasheet, PDF (8/60 Pages) Microchip Technology – Unity-Gain Stable

MCP631/2/3/4/5/9
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 = 2 kto V_L, C_L = 50 pF and CS = V_SS.
2.0
V_DD = 2.5V
1.5 Representative Part
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
+125°C
+85°C
+25°C
-40°C
Input Common Mode Voltage (V)
FIGURE 2-7:
Input Offset Voltage vs.
Common-Mode Voltage with V_DD = 2.5V.
2.0
V_DD = 5.5V
1.5 Representative Part
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
+125°C
+85°C
+25°C
-40°C
Input Common Mode Voltage (V)
FIGURE 2-8:
Input Offset Voltage vs.
Common-Mode Voltage with V_DD = 5.5V.
130
125
120
V_DD = 5.5V
115
V_DD = 2.5V
110
105
100
-50
-25
0
25 50 75 100 125
Ambient Temperature (°C)
FIGURE 2-10:
DC Open-Loop Gain vs.
Ambient Temperature.
130
125
120
115
110
105
100
95
1.1E0+002
V_DD = 5.5V
V_DD = 2.5V
1.E1+k03
1.1E0+k04
Load Resistance (Ω)
11.E0+00k5
FIGURE 2-11:
DC Open-Loop Gain vs.
Load Resistance.
110
105
100
95
90
85
80
75
70
65
60
-50
CMRR, V_DD = 2.5V
CMRR, V_DD = 5.5V
PSRR
-25
0
25 50 75 100 125
Ambient Temperature (°C)
FIGURE 2-9:
CMRR and PSRR vs.
Ambient Temperature.
1.E1-008n _{VDD = 5.5V}
V_CM = V_{CMR_H}
1.E-019n
I_B
1.E10-100p
1.E1-101p
1.E-112p
25
| I_OS |
45
65
85
105
125
Ambient Temperature (°C)
FIGURE 2-12:
Input Bias and Offset
Currents vs. Ambient Temperature with
V_DD = 5.5V.
DS20002197C-page 8
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