FAN4272 Datasheet, PDF (5/11 Pages) Fairchild Semiconductor – Dual, Low Cost, +2.7V & +5V, Rail-to-Rail I/O Amplifier

FAN4272
DATA SHEET
Typical Operating Characteristics
(V_s = +5V, G = 2, R_L = 10kΩ to V_s/2, R_f = 5kΩ, T_a = 25°C; unless otherwise noted)
Harmonic Distortion vs. Freq. Vs = +5V
-45
-50 ^Vo ^{= 1V}pp
-55
2nd
RL = 1kΩ
3rd
RL = 1kΩ
-60
-65
2nd
RL = 10kΩ
-70
-75
-80
3rd
RL = 10kΩ
-85
10 20 30 40 50 60 70 80 90 100
Frequency (kHz)
2nd Harmonic Distortion vs. Vo for Vs = +5V
-40
-45
-50
-55
100kHz
-60
50kHz
-65
-70 ^20kHz
-75 _10kHz
-80
-85
0.5
1
1.5
2
2.5
Output Amplitude (Vpp)
3rd Harmonic Distortion vs. Vo for Vs = +5V
-40
100kHz
-45
-50
-55
50kHz
-60
-65
-70
20kHz
-75
10kHz
-80
-85
0.5
1
1.5
2
2.5
Output Amplitude (Vpp)
CMRR vs. Frequency
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
100
1000
10000
100000
Frequency (Hz)
1000000
PSRR vs. Frequency
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
100
1000
10000 100000
Frequency (Hz)
1000000
Output Swing vs. Load Vs = +5V
2.5
RL = 10kΩ
2.0
1.5
RL = 1kΩ
RL = 200Ω
1.0
RL = 75Ω
RL = 100Ω
0.5
0
-0.5
-1.0
-1.5
-2.0
-2.5
-3
-2
-1
0
1
2
3
Input Voltage (V)
Pulse Resp. vs. Common Mode Voltage
1.2V Offset
2.4V Offset
No Offset
-1.2V Offset
-2.4V Offset
Time (1µS/div))
Input Voltage Noise Vs = +5V
45
42
39
36
33
30
27
24
21
18
0.1
1
10
100
Frequency (kHz)
Rev. 2 December 2002
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