EL2228C - Preliminary
Dual Low Noise Amplifier
Typical Performance Curves
Non-inverting Frequency Response for Various
Input Signal Levels
4
3
VS=±12V
RF=420Ω
2 RL=500Ω
1 AV=+1
0
VIN=100mVPP
-1
VIN=1VPP
-2
-3
VIN=2VPP
-4
-5
VIN=500mVPP
-6
100k
1M
10M
100M
Frequency (Hz)
Non-inverting Frequency Response for Various CL
4
3
2
1
0
-1
-2
-3 VS=±12V
-4 RF=420Ω
-5
RL=500Ω
AV=+1
-6
100k
CL=30pF
CL=3pF
CL=10pF
1M
10M
Frequency (Hz)
100M
-3dB Bandwidth vs ±Supply Voltage for Non-
inverting Gains
80
G=1
60
VS=±12V
RF=420Ω
RL=500Ω
AV=+1
40
G=2
20
G=5
G=10
0
2.5
4.5
6.5
8.5
10.5
12.5
Supply Voltage (±V)
Non-inverting Frequency Response for Various RL
4
3
2
1
0
-1
-2
-3
-4 VS=±12V
-5
AV=+1
RF=420Ω
-6
100k
RL=50Ω
RL=150Ω
RL=1kΩ
RL=500Ω
1M
10M
Frequency (Hz)
100M
Non-inverting Frequency Response for Various
Output DC Levels
4
3
2
VO=-10
VO=+10
1
0
VO=0
-1
-2
-3 VS=±12V
-4 RF=420Ω
-5
RL=500Ω
AV=+1
-6
100k
1M
VO=+5
VO=-5
10M
100M
Frequency (Hz)
-3dB Bandwidth vs ±Supply Voltage for Inverting
Gains
25
G=-1
20
VS=±12V
RF=420Ω
RL=500Ω
15 AV=+1
G=-2
10
G=-5
5
G=-10
0
2.5
4.5
6.5
8.5
10.5
12.5
Supply Voltage (±V)
5