Datasheet

MCP6401/1R/1U/2/4/6/7/9
DS22229D-page 12 © 2009-2011 Microchip Technology Inc.
Note: Unless otherwise indicated, T
A
= +25°C, V
DD
= +1.8V to +6.0V, V
SS
= GND, V
CM
= V
DD
/2, V
OUT
≈ V
DD
/2,
V
L
= V
DD
/2, R
L
= 100 kΩ to V
L
and C
L
= 60 pF.
FIGURE 2-19: Open-Loop Gain, Phase vs.
Frequency.
FIGURE 2-20: DC Open-Loop Gain vs.
Power Supply Voltage.
FIGURE 2-21: DC Open-Loop Gain vs.
Output Voltage Headroom.
FIGURE 2-22: Gain Bandwidth Product,
Phase Margin vs. Ambient Temperature.
FIGURE 2-23: Gain Bandwidth Product,
Phase Margin vs. Ambient Temperature.
FIGURE 2-24: Output Short Circuit Current
vs. Power Supply Voltage.
-20
0
20
40
60
80
100
120
1.0E-01 1.0E+00 1.0E+01 1.0E+02 1.0E+03 1.0E+04 1.0E+05 1.0E+06 1.0E+07
Frequency (Hz)
Open-Loop Gain (dB)
-210
-180
-150
-120
-90
-60
-30
0
Open-Loop Phase (°)
Open-Loop Gain
Open-Loop Phase
V
DD
= 6.0V
0.1 1 10 100 1k 10k 100k 1M 10M
100
105
110
115
120
125
130
135
140
145
150
1.52.02.53.03.54.04.55.05.56.0
Power Supply Voltage (V)
DC Open-Loop Gain (dB)
R
L
= 10 kΩ
V
SS
+ 0.3V < V
OUT
< V
DD
- 0.3V
100
105
110
115
120
125
130
135
140
145
150
0.00 0.05 0.10 0.15 0.20 0.25
Output Voltage Headroom
V
DD
- V
OH
or V
OL
-V
SS
(V)
DC Open-Loop Gain (dB)
V
DD
= 6.0V
V
DD
= 1.8V
Large Signal A
OL
45
50
55
60
65
70
75
80
85
90
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
-50 -25 0 25 50 75 100 125 150
Phase Margin (°)
Gain Bandwidth Product (MHz)
Temperature (°C)
Gain Bandwidth Product
Phase Margin
V
DD
= 6.0V
45
50
55
60
65
70
75
80
85
90
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
-50 -25 0 25 50 75 100 125 150
Phase Margin (°)
Gain Bandwidth Product (MHz)
Temperature (°C)
Gain Bandwidth Product
Phase Margin
V
DD
= 1.8V
0
5
10
15
20
25
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
Output Short Circuit Current
(mA)
Power Supply Voltage (°V)
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
T
A
= +125°C
T
A
= +150°C