Datasheet
AD812
–11–
REV. B
10
90
100
0%
50ns
2V
V
IN
V
OUT
2V
Figure 34. Large Signal Pulse Response, Gain = –1,
(R
F
= 750
Ω
, R
L
= 150
Ω
, V
S
=
±
5 V)
–1
–6
1 10 1000100
–2
–3
–4
–5
0
1
–270
–180
–90
0
FREQUENCY – MHz
CLOSED-LOOP GAIN (NORMALIZED) – dB
G = –1
R
L
= 150V
PHASE SHIFT – Degrees
PHASE
GAIN
V
S
= 615V
65V
5V
3V
V
S
= 615V
65V
5V
3V
Figure 35. Closed-Loop Gain and Phase vs. Frequency,
Gain = –1, R
L
= 150
Ω
130
30
20
60
40
2
50
0
90
70
80
100
110
120
1816141210864
–3dB BANDWIDTH – MHz
SUPPLY VOLTAGE – 6Volts
G = –1
R
L
= 150V
PEAKING # 1.0dB
R
F
= 681V
R
F
= 715V
PEAKING # 0.2dB
Figure 36. –3 dB Bandwidth vs. Supply Voltage,
Gain = –1, R
L
= 150
Ω
10
90
100
0%
500mV
20ns
500mV
V
IN
V
OUT
Figure 37. Small Signal Pulse Response, Gain = –1,
(R
F
= 750
Ω
, R
L
= 150
Ω
, V
S
=
±
5 V)
–1
–6
1 10 1000100
–2
–3
–4
–5
0
1
–270
–180
–90
0
FREQUENCY – MHz
CLOSED-LOOP GAIN (NORMALIZED) – dB
G = –10
R
L
= 1kV
65V
5V
3V
PHASE
V
S
= 615V
GAIN
5V
3V
65V
V
S
= 615V
PHASE SHIFT – Degrees
Figure 38. Closed-Loop Gain and Phase vs. Frequency,
Gain = –10, R
L
= 1 k
Ω
100
0
20
30
10
2
20
0
60
40
50
70
80
90
1816141210864
–3dB BANDWIDTH – MHz
SUPPLY VOLTAGE – 6Volts
G = –10
R
L
= 1kV
R
F
= 357V
R
F
= 649V
R
F
= 154V
Figure 39. –3 dB Bandwidth vs. Supply Voltage,
Gain = –10, R
L
= 1 k
Ω