MCP6141/2/3/4
Note:
Unless otherwise indicated, T
A
= 25°C, V
DD
= +1.4V to +5.5V, V
SS
= GND, V
CM
= V
DD
/2, R
L
= 1 MΩ to V
DD
/2,
V
OUT
≈
V
DD
/2, and C
L
= 60 pF.
Input Bias and Offset Currents
(pA)
10000
10k
1k
1000
100
100
10
10
1
1
0.1
0.1
45
55
65
75
85
95
105 115 125
Ambient Temperature (°C)
| I
OS
|
V
DD
= 5.5V
V
CM
= V
DD
10k
10000
Input Bias, Offset Currents
(pA)
1k
1000
100
10
T
A
= +85°C
1
1
0.1
0.1
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
Common Mode Input Voltage (V)
T
A
= +125°C
I
B
V
DD
= 5.5V
I
B
| I
OS
|
FIGURE 2-13:
Input Bias, Offset Currents
vs. Ambient Temperature.
120
Open-Loop Gain (dB)
100
80
60
40
20
0
-20
Gain
Phase
0
Open-Loop Phase (°)
-30
-60
-90
-120
-150
-180
-210
FIGURE 2-16:
Input Bias, Offset Currents
vs. Common Mode Input Voltage.
130
DC Open-Loop Gain (dB)
120
110
100
90
80
70
60
100
1.E+02
V
OUT
= 0.1V to V
DD
- 0.1V
1k
10k
1.E+03
1.E+04
Load Resistance (Ω)
100k
1.E+05
V
DD
= 1.4V
V
DD
= 5.5V
-40
-240
10m 100m
1.E+ 1.E+ 1.E+ 1.E+ 1.E+ 1.E+
10 100 1k 10k 100k
1.E- 1.E-
1
02
01
00
Frequency (Hz)
01
02
03
04
05
FIGURE 2-14:
Frequency.
140
Open-Loop Gain, Phase vs.
FIGURE 2-17:
Load Resistance.
140
DC Open-Loop Gain (dB)
130
120
110
100
90
80
70
0.00
0.05
R
L
= 50 kΩ
DC Open-Loop Gain vs.
DC Open-Loop Gain (dB)
130
120
110
100
90
80
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Power Supply Voltage (V)
R
L
= 50 kΩ
V
OUT
= 0.1V to V
DD
- 0.1V
V
DD
= 5.5V
V
DD
= 1.4V
0.10
0.15
0.20
0.25
Output Voltage Headroom;
V
DD
– V
OH
or V
OL
– V
SS
(V)
FIGURE 2-15:
DC Open-Loop Gain vs.
Power Supply Voltage.
FIGURE 2-18:
DC Open-Loop Gain vs.
Output Voltage Headroom.
©
2005 Microchip Technology Inc.
DS21668B-page 7