MCP625 查看數據表（PDF） - Microchip Technology
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MCP625 Datasheet PDF : 44 Pages
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MCP621/2/5
Note: Unless otherwise indicated, TA = +25°C, VDD = +2.5V to 5.5V, VSS = GND, VCM = VDD/3, VOUT = VDD/2,
VL = VDD/2, RL = 2 kΩ to VL, CL = 50 pF, and CAL/CS = VSS.
2.3 Frequency Response
100
90
80
70
60
50
40
30
20
10
11.0E0+2
1.1Ek+3
CMRR
PSRR+
PSRR-
11.E0+k4
11.0E0+k5
Frequency (Hz)
11.EM+6
1.0EM+7
FIGURE 2-24:
Frequency.
CMRR and PSRR vs.
45
70
40
65
35 PM
60
30
VDD = 5.5V
55
VDD = 2.5V
25 GBWP
50
20
45
15
40
Common Mode Input Voltage (V)
FIGURE 2-27:
Gain Bandwidth Product
and Phase Margin vs. Common Mode Input
Voltage.
140
0
120
-30
100
-60
80
∠AOL -90
60
-120
40
-150
| AOL |
20
-180
0
-210
-20
-240
1.E1+0 1.1E0+1 11.E0+02 1.1Ek+3 11.E0+k4 110.E0+k5 11.EM+6 1.0EM+7 110.E0+M8
Frequency (Hz)
FIGURE 2-25:
Frequency.
Open-Loop Gain vs.
45
70
40
65
PM
35
60
30
55
VDD = 5.5V
25
VDD = 2.5V
50
GBWP
20
45
15
-50
40
-25 0 25 50 75 100 125
Ambient Temperature (°C)
FIGURE 2-26:
Gain Bandwidth Product
and Phase Margin vs. Ambient Temperature.
45
70
40
35
PM
30
25
GBWP
20
65
60
VDD = 5.5V
VDD = 2.5V
55
50
45
15
40
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
Output Voltage (V)
FIGURE 2-28:
Gain Bandwidth Product
and Phase Margin vs. Output Voltage.
100
10 G = 101 V/V
G = 11 V/V
G = 1 V/V
1
0.1
1.0E1k+03 1.01E0+k04 1.01E00+k05 1.01EM+06 1.01E0M+07 1.100E0+M08
Frequency (Hz)
FIGURE 2-29:
Closed-Loop Output
Impedance vs. Frequency.
DS22188A-page 12
© 2009 Microchip Technology Inc.
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