Datasheet
Table Of Contents
- Package Types
- Typical Application
- 1.0 Electrical Characteristics
- 2.0 Typical Performance Curves
- Figure 2-1: Input Offset Voltage
- Figure 2-2: Input Offset Voltage Drift
- Figure 2-3: Input Offset Voltage vs. Common Mode Input Voltage
- Figure 2-4: Input Offset Voltage vs. Common Mode Input Voltage
- Figure 2-5: Input Offset Voltage vs. Output Voltage
- Figure 2-6: Input Offset Voltage vs. Power Supply Voltage
- FIGURE 2-7: Input Noise Voltage Density vs. Frequency.
- FIGURE 2-8: Input Noise Voltage Density vs. Common Mode Input Voltage.
- FIGURE 2-9: CMRR, PSRR vs. Frequency.
- FIGURE 2-10: CMRR, PSRR vs. Ambient Temperature.
- FIGURE 2-11: Input Bias, Offset Currents vs. Ambient Temperature.
- FIGURE 2-12: Input Bias Current vs. Common Mode Input Voltage.
- FIGURE 2-13: Quiescent Current vs. Ambient Temperature.
- FIGURE 2-14: Quiescent Current vs. Common Mode Input Voltage.
- FIGURE 2-15: Quiescent Current vs. Common Mode Input Voltage.
- FIGURE 2-16: Quiescent Current vs. Power Supply Voltage.
- FIGURE 2-17: Open-Loop Gain, Phase vs. Frequency.
- FIGURE 2-18: DC Open-Loop Gain vs. Ambient Temperature.
- FIGURE 2-19: Gain Bandwidth Product, Phase Margin vs. Ambient Temperature.
- FIGURE 2-20: Gain Bandwidth Product, Phase Margin vs. Ambient Temperature.
- FIGURE 2-21: Output Short Circuit Current vs. Power Supply Voltage.
- FIGURE 2-22: Output Voltage Swing vs. Frequency.
- FIGURE 2-23: Output Voltage Headroom vs. Output Current.
- FIGURE 2-24: Output Voltage Headroom vs. Output Current.
- FIGURE 2-25: Output Voltage Headroom vs. Ambient Temperature.
- FIGURE 2-26: Output Voltage Headroom vs. Ambient Temperature.
- FIGURE 2-27: Slew Rate vs. Ambient Temperature.
- FIGURE 2-28: Small Signal Non-Inverting Pulse Response.
- FIGURE 2-29: Small Signal Inverting Pulse Response.
- FIGURE 2-30: Large Signal Non-Inverting Pulse Response.
- FIGURE 2-31: Large Signal Inverting Pulse Response.
- FIGURE 2-32: The MCP6491/2/4 Shows No Phase Reversal.
- FIGURE 2-33: Closed Loop Output Impedance vs. Frequency.
- FIGURE 2-34: Measured Input Current vs. Input Voltage (below VSS).
- FIGURE 2-35: Channel-to-Channel Separation vs. Frequency (MCP6492/4 only).
- 3.0 Pin Descriptions
- 4.0 Application Information
- 5.0 Design Aids
- 6.0 Packaging Information
- Appendix A: Revision History
- Product Identification System
- Trademarks
- Worldwide Sales and Service
MCP6491/2/4
DS20002321C-page 10 2012-2013 Microchip Technology Inc.
Note: Unless otherwise indicated, T
A
=+25°C, V
DD
= +2.4V to +5.5V, V
SS
= GND, V
CM
=V
DD
/2, V
OUT
V
DD
/2,
V
L
=V
DD
/2, R
L
=10kto V
L
and C
L
=20pF.
FIGURE 2-19: Gain Bandwidth Product,
Phase Margin vs. Ambient Temperature.
FIGURE 2-20: Gain Bandwidth Product,
Phase Margin vs. Ambient Temperature.
FIGURE 2-21: Output Short Circuit Current
vs. Power Supply Voltage.
FIGURE 2-22: Output Voltage Swing vs.
Frequency.
FIGURE 2-23: Output Voltage Headroom
vs. Output Current.
FIGURE 2-24: Output Voltage Headroom
vs. Output Current.
20
30
40
50
60
70
4
6
8
10
12
14
P
hase Margin (°)
n
Bandwidth Product
(MHz)
Phase Margin
Gain Bandwidth Product
0
10
20
0
2
4
-50 -25 0 25 50 75 100 125
P
Gai
n
Ambient Temperature (°C)
V
DD
= 2.4V
Gain Bandwidth Product
30
40
50
60
70
6
8
10
12
14
P
hase Margin (°)
n
Bandwidth Product
(MHz)
Phase Margin
Gain Bandwidth Product
0
10
20
0
2
4
-50 -25 0 25 50 75 100 125
P
Gai
n
Ambient Temperature (°C)
V
DD
= 5.5V
-20
-10
0
10
20
30
40
50
60
S
hort Circuit Current
(mA)
125
°
C
-40°C
+25°C
+85°C
+125°C
-60
-50
-40
-30
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
S
Power Supply Voltage (V)
+
125
°
C
+85°C
+25°C
-40°C
1
10
t
Voltage Swing (V
P-P
)
V
DD
= 2.4V
V
DD
= 5.5V
0.1
100 1000 10000 100000 1000000 10000000
Outpu
t
Frequency (Hz)
100 1k 10k 100k 1M 10M
10
100
1000
o
ltage Headroom (mV)
V
DD
-V
OH
V
OL
-V
SS
V
DD
= 2.4V
V
DD
-V
OH
V
OL
-V
SS
V
DD
= 2.4V
0.1
1
0.01 0.1 1 10
Output V
o
Output Current (mA)
10
100
1000
V
oltage Headroom (mV)
V
DD
-V
OH
V
OL
-V
SS
V
DD
= 5.5V
0.1
1
0.01 0.1 1 10 100
Output
V
Output Current (mA)