AD9631/AD9632
1
0
–1 VS = ؎5V
RL = 100⍀
–2 VO = 300mV p-p
–3
–4
RF
50⍀
RF
100⍀
RF
150⍀
RF
200⍀
–5
–6
–7
–8
–9
1M
10M
100M
1G
FREQUENCY – Hz
TPC 13. AD9631 Small Signal Frequency
Response, G = +1
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
VS = ؎5V
RL = 100⍀
G = +1
VO = 300mV p-p
RF
100⍀
RF
120⍀
RF
150⍀
RF
140⍀
–0.6
–0.7
–0.8
–0.9
1M
10M
100M
FREQUENCY – Hz
500M
TPC 14. AD9631 0.1 dB Flatness, N Package
(for R Package Add 20 W to RF)
90
80
70
60
50
40
30
20
10
0
–10
–20
10k
PHASE
GAIN
100k
1M
10M
FREQUENCY – Hz
100M
100
80
60
40
20
0
–20
–40
–60
–80
–100
–120
1G
TPC 15. AD9631 Open-Loop Gain and
Phase Margin vs. Frequency, RL = 100 W
450
VS = ؎5V
RL = 100⍀
GAIN = +1
400
N PACKAGE
350
RF
AD9631
130⍀
RL
300
R PACKAGE
250
20 40 60 80 100 120 140 160 180 200 220 240
VALUE OF FEEDBACK RESISTOR ( RF) – ⍀
TPC 16. AD9631 Small Signal –3 dB Bandwidth vs. RF
1
0
–1 VS = ؎5V
RL = 100⍀
–2 VO = 4V p-p
–3
RF
250⍀
RF = 50⍀ TO 250⍀
BY 50⍀
–4
–5
–6
–7
–8
–9
1M
10M
100M
FREQUENCY – Hz
500M
TPC 17. AD9631 Large Signal Frequency
Response, G = +1
1
0
–1 VS = ؎5V
RL = 100⍀
–2 VO = 300mV p-p
–3
–4
RF
267⍀
–5
–6
–7
–8
–9
1M
10M
100M
1G
FREQUENCY – Hz
TPC 18. AD9631 Small Signal Frequency
Response, G = –1
–6–
REV. C