Datasheet

MCP6071/2/4
DS22142B-page 10 © 2010 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
= 10 kΩ to V
L
and C
L
= 60 pF.
FIGURE 2-19: DC Open-Loop Gain vs.
Power Supply Voltage.
FIGURE 2-20: DC Open-Loop Gain vs.
Output Voltage Headroom.
FIGURE 2-21: Channel-to-Channel
Separation vs. Frequency ( MCP6072/4 only).
FIGURE 2-22: Gain Bandwidth Product,
Phase Margin vs. Common Mode Input Voltage.
FIGURE 2-23: Gain Bandwidth Product,
Phase Margin vs. Ambient Temperature.
FIGURE 2-24: Gain Bandwidth Product,
Phase Margin vs. Ambient Temperature.
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 k
Ω
V
SS
+ 0.2V < V
OUT
< V
DD
- 0.2V
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
80
90
100
110
120
130
140
150
1.00E+02 1.00E+03 1.00E+04 1.00E+05 1.00E+06
Frequency (Hz)
Channel to Channel
Separation (dB)
Input Referred
100 1k 10k 100k 1M
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
-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 6.5
Common Mode Input Voltage (V)
Gain Bandwidth Product
(MHz)
0
20
40
60
80
100
120
140
160
180
Phase Margin (°)
Phase Margin
Gain Bandwidth Product
V
DD
= 6.0V
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
-50 -25 0 25 50 75 100 125
Ambient Temperature (°C)
Gain Bandwidth Product
(MHz)
0
20
40
60
80
100
120
140
160
180
Phase Margin (°)
Gain Bandwidth Product
Phase MarginV
DD
= 6.0V
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
-50-250 255075100125
Ambient Temperature (°C)
Gain Bandwidth Product
(MHz)
0
20
40
60
80
100
120
140
160
180
Phase Margin (°)
Gain Bandwidth Product
Phase Margin
V
DD
= 1.8V