MCP6021/1R/2/3/4
DS20001685E-page 10 2001-2017 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
/2, V
OUT
V
DD
/2,
R
L
=10k to V
DD
/2 and C
L
=60 pF.
FIGURE 2-19: DC Open-Loop Gain vs.
Load Resistance.
FIGURE 2-20: Small Signal DC Open-Loop
Gain vs. Output Voltage Headroom.
FIGURE 2-21: Gain Bandwidth Product,
Phase Margin vs. Temperature.
FIGURE 2-22: DC Open-Loop Gain vs.
Temperature.
FIGURE 2-23: Gain Bandwidth Product,
Phase Margin vs. Common-Mode Input Voltage.
FIGURE 2-24: Gain Bandwidth Product,
Phase Margin vs. Output Voltage.
80
90
100
110
120
130
1.E+02 1.E+03 1.E+04 1.E+05
DC Open-Loop Gain (dB)
Load Resistance (ΩΩ)
V
DD
= 5.5V
V
DD
= 2.5V
100
1k
10k
100k
70
80
90
100
110
120
0.00 0.05 0.10 0.15 0.20 0.25 0.30
DC Open-Loop Gain (dB)
Output Voltage Headroom (V);
V
DD
- V
OH
or V
OL
- V
SS
V
CM
= V
DD
/2
V
DD
= 2.5V
V
DD
= 5.5V
0
10
20
30
40
50
60
70
80
90
100
0
1
2
3
4
5
6
7
8
9
10
-50-25 0 255075100125
Phase Margin, G = +1 (°)
Gain Bandwidth Product (MHz)
Ambient Temperature (°C)
PM, V
DD
= 5.5V
GBWP, V
DD
= 2.5V
PM, V
DD
= 2.5V
GBWP, V
DD
= 5.5V
90
95
100
105
110
115
120
-50-250 255075100125
DC Open-Loop Gain (dB)
Ambient Temperature (°C)
V
DD
= 5.5V
V
DD
= 2.5V
0
15
30
45
60
75
90
105
0
2
4
6
8
10
12
14
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Phase Margin, G = +1 (°)
Gain Bandwidth Product (MHz)
Common Mode Input Voltage (V)
Gain Bandwidth Product
Phase Margin, G = +1
V
DD
= 5.0V
0
15
30
45
60
75
90
105
0
2
4
6
8
10
12
14
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Phase Margin, G = +1 (°)
Gain Bandwidth Product (MHz)
Output Voltage (V)
Gain Bandwidth Product
Phase Margin, G = +1
V
DD
= 5.0V
V
CM
= V
DD
/2
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