Datasheet

© 2010-2012 Microchip Technology Inc. DS22257C-page 7
MCP6441/2/4
Note: Unless otherwise indicated, T
A
= +25°C, V
DD
= +1.4V to +6.0V, V
SS
= GND, V
CM
= V
DD
/2, V
OUT
≈ V
DD
/2,
V
L
= V
DD
/2, R
L
= 1 MΩ to V
L
and C
L
= 60 pF.
FIGURE 2-13: Quiescent Current vs.
Ambient Temperature.
FIGURE 2-14: Quiescent Current vs.
Power Supply Voltage.
FIGURE 2-15: Open-Loop Gain, Phase vs.
Frequency.
FIGURE 2-16: DC Open-Loop Gain vs.
Power Supply Voltage.
FIGURE 2-17: DC Open-Loop Gain vs.
Output Voltage Headroom.
FIGURE 2-18: Gain Bandwidth Product,
Phase Margin vs. Ambient Temperature.
200
250
300
350
400
450
500
550
600
-50 -25 0 25 50 75 100 125
Ambient Temperature (°C)
Quiescent Current
(nA/Amplifier)
V
DD
= 6.0V
V
DD
= 1.4V
0
100
200
300
400
500
600
700
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 7.0
Power Supply Voltage (V)
Quiescent Current
(nA/Amplifier)
T
A
= +125°C
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
-20
0
20
40
60
80
100
120
1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 1.0E+02 1.0E+03 1.0E+04 1.0E+05
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
1m 10m 0.1 1 10 100 1k 10k 100k
60
70
80
90
100
110
120
130
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Power Supply Voltage (V)
DC Open-Loop Gain (dB)
R
L
= 10 kΩ
V
SS
+ 0.1V < V
OUT
< V
DD
- 0.1V
120
130
B
)
V
DD
= 6.0V
110
120
a
in (d
B
DD
100
o
op G
a
V
DD
= 1.4V
80
90
O
pen-L
o
LSilA
70
DC
O
R
L
= 10k
:
L
arge
Si
gna
lA
OL
60
0.00 0.05 0.10 0.15 0.20 0.25
0
2
4
6
8
10
12
14
16
18
-50 -25 0 25 50 75 100 125
Ambient Temperature (°C)
Gain Bandwidth Product
(kHz)
0
10
20
30
40
50
60
70
80
90
Phase Margin (°)
Gain Bandwidth Product
Phase Margin
V
DD
= 6.0V