Datasheet

AD8331/AD8332/AD8334
Rev. G | Page 13 of 56
60
50
40
30
20
10
0
–10
100k 1M 10M 100M 500M
GAIN (dB)
FREQUENCY (Hz)
03199-013
V
GAIN
= 1V
V
GAIN
= 0.8V
V
GAIN
= 0.6V
V
GAIN
= 0.4V
V
GAIN
= 0.2V
V
GAIN
= 0V
Figure 13. Frequency Response for Various Values of V
GAIN
, HILO = HI
30
20
–30
–20
–10
0
10
100k 1M 10M 100M 500M
GAIN (dB)
FREQUENCY (Hz)
03199-014
R
IN
= R
S
= 50
R
IN
= R
S
= 75
R
IN
= R
S
= 100
R
IN
= R
S
= 200
R
IN
= R
S
= 500
R
IN
= R
S
= 1k
V
GAIN
= 0.5V
Figure 14. Frequency Response for Various Matched Source Impedances
30
–30
–20
–10
0
10
20
100k 1M 10M 100M 500M
GAIN (dB)
FREQUENCY (Hz)
03199-015
V
GAIN
= 0.5V
R
IZ
= 
Figure 15. Frequency Response, Unterminated LNA, R
S
= 50 Ω
0
–120
–100
–80
–60
–40
–20
100k 1M 10M 100M
CROSSTALK (dB)
FREQUENCY (Hz)
03199-016
V
OUT
= 1V p-p
V
GAIN
= 1.0V
V
GAIN
= 0.7V
V
GAIN
= 0.4V
AD8332
AD8334
Figure 16. Channel-to-Channel Crosstalk vs.
Frequency for Various Values of V
GAIN
50
0
5
10
15
20
25
30
35
40
45
100k 1M 10M 100M
GROUP DELAY (ns)
FREQUENCY (Hz)
03199-017
0.1µF
COUPLING
1µF
COUPLING
Figure 17. Group Delay vs. Frequency for Two Values of AC Coupling
03199-018
20
–20
–10
0
10
20
–20
–10
0
10
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1
OFFSET VOLTAGE (mV)
V
GAIN
(V)
T = +85°C
T = +25°C
T = –40°C
T = +85°C
T = +25°C
T = –40°C
HI GAIN
LO GAIN
Figure 18. Representative Differential Output Offset Voltage vs.
V
GAIN
at Three Temperatures