EL2228C - Preliminary
Dual Low Noise Amplifier
Typical Performance Curves
Non-inverting Frequency Response for Various
Non-inverting Frequency Response for Various R
L
Input Signal Levels
4
4
3
V =±12V
S
3
2
R =420W
F
R =500W
L
2
A =+1
V
1
1
R =1kW
L
0
0
V =100mV
IN PP
-1
-2
-3
-4
-5
-6
-1
-2
-3
-4
-5
-6
R =50W
L
V
=1V
PP
IN
R =150W
L
V
IN
=2V
PP
V =±12V
S
R =500W
L
A =+1
V
=500mV
IN
V
PP
R =420W
F
100M
100k
1M
10M
Frequency (Hz)
100M
100k
1M
10M
Frequency (Hz)
Non-inverting Frequency Response for Various C
Non-inverting Frequency Response for Various
Output DC Levels
L
4
3
4
3
C =30pF
L
2
2
V =-10
O
V =+10
O
1
1
V =0
O
0
0
-1
-2
-3
-4
-5
-6
C =3pF
-1
-2
-3
-4
-5
-6
L
C =10pF
L
V =±12V
S
V =±12V
S
V =+5
O
R =420W
R =420W
F
F
R =500W
R =500W
L
L
V =-5
O
A =+1
V
A =+1
V
100M
100M
100k
1M
10M
Frequency (Hz)
100k
1M
10M
Frequency (Hz)
-3dB Bandwidth vs ±Supply Voltage for Non-
inverting Gains
-3dB Bandwidth vs ±Supply Voltage for Inverting
Gains
80
60
40
20
0
25
20
15
10
5
G=-1
V =±12V
R =420W
F
S
G=1
V =±12V
S
R =420W
F
R =500W
L
R =500W
L
A =+1
V
A =+1
V
G=-2
G=-5
G=2
G=5
G=-10
G=10
0
12.5
2.5
4.5
6.5
8.5
10.5
2.5
4.5
6.5
8.5
10.5
12.5
Supply Voltage (±V)
Supply Voltage (±V)
5
ELANTEC [ ELANTEC SEMICONDUCTOR ]
