EL5191C
1GHz Current Feedback Amplifier
Typical Performance Curves
Frequency Response for Various C
Frequency Response for Various R
L
F
14
10
6
6
2
150Ω
250Ω
6pF added
4pF added
-2
375Ω
2
-6
500Ω
A =2
R =250Ω
F
A =2
V
R =R
G F
V
-2
-10
0pF added
R =150Ω
L
R =150Ω
L
-6
-14
1M
10M
100M
1G
1M
10M
100M
Frequency (Hz)
1G
Frequency (Hz)
Group Delay vs Frequency
Frequency Response for Various Common-mode
Input Voltages
3.5
3
6
2
V
=3V
V
=0V
CM
CM
2.5
2
-2
A =2
R =250Ω
F
A =1
V
R =390Ω
F
V
V
=-3V
CM
1.5
1
-6
A =2
-10
-14
V
0.5
0
R =250Ω
F
R =150Ω
L
1M
10M
100M
1G
1M
10M
100M
Frequency (Hz)
1G
Frequency (Hz)
Transimpedance (ROL) vs Frequency
PSRR and CMRR vs Frequency
10M
1M
20
0
0
Phase
PSRR+
-90
100k
10k
1k
-20
-40
-60
-80
PSRR-
-180
-270
-360
Gain
CMRR
100
1k
10k
100k
1M
10M
100M
1G
10k
100k
1M
10M
100M
1G
Frequency (Hz)
Frequency (Hz)
4