1874I 查看數據表（PDF） - STMicroelectronics
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1874I Datasheet PDF : 26 Pages
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TS1871-TS1872-TS1874
Electrical characteristics
Figure 31. Slew rate vs. temperature
Figure 32. Slew rate vs. temperature
0.70
Vcc = 3V
0.65 gain = +1
Vin = 1 to 2V
0.60 RL = 10kohm
CL = 100 pF
0.55
0.50
0.45
0.40
positive slew rate
negative slew rate
0.75
Vcc = 5V
0.70 gain = +1
Vin = 2 to 3V
0.65 RL = 10kohms
CL = 100 pF
0.60
0.55
0.50
0.45
0.40
positive slew rate
negative slew rate
0.35
-40 -20 0 20 40 60 80 100 120 140
Temperature (°C)
0.35
-40 -20 0 20 40 60 80 100 120 140
Temperature (°C)
Figure 33. Phase margin vs. load capacitor Figure 34. Phase margin vs. output current
60
80
Vcc = 1.8V
50
gain = 40dB
75
RL = 1Kohm
40
70
Vcc = 1.8V
65
RL = 1 kOhm
30
CL = 220 pF
60
20
55
10
50
0
45
-10
10
100
Load capacitor (pF)
40
1000
-10
-5
0
5
10
DC output current (mA)
Figure 35. Gain margin vs. output current
0
Figure 36. Equivalent input noise vs.
frequency
35
30
-5
-10
Vcc = 1.8V
RL = 1 kOhm
25
CL = 220 pF
20
-15
15
Vcc = 1.8V
gain = 100
-20
Rs = 100 ohms
10
-25
-10
-5
0
5
DC output current (mA)
5
10
1E+1
1E+2
1E+3
1E+4
Frequency (Hz)
1E+5
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