Datasheet

AD812
–15–
REV. B
1 10 1000100
FREQUENCY –MHz
–1
–6
1
0
–2
–3
–4
–5
CLOSED-LOOP GAIN – dB
90
0
–90
–180
–270
PHASE SHIFT – Degrees
3V
5V
PHASE
GAIN
G = +2
R
L
= 150
V
V
S
=
6
15V
6
5V
V
S
=
6
15V
6
5V
5V
3V
Figure 47. Closed-Loop Gain and Phase vs. Frequency for
the Line Driver
120
20
20
50
30
2
40
0
80
60
70
90
100
110
1816141210864
SUPPLY VOLTAGE – 6Volts
–3dB BANDWIDTH – MHz
G = +2
R
L
= 150V
R
F
= 590V
R
F
= 715V
R
F
= 750V
PEAKING # 1dB
NO PEAKING
Figure 48. –3 dB Bandwidth vs. Supply Voltage,
Gain = +2, R
L
= 150 Ω
15
0.06
0.02
6
0.04
5
0.08
14121110 13987
SUPPLY VOLTAGE – 6Volts
DIFFERENTIAL PHASE – Degrees
0.06
0.02
0.04
DIFFERENTIAL GAIN – %
0
DIFFERENTIAL GAIN
DIFFERENTIAL PHASE
Figure 49. Differential Gain and Phase vs. Supply Voltage,
Gain = +2, R
L
= 150 Ω
–0.1
–0.6
1M 100M10M
–0.2
–0.3
–0.4
–0.5
0
0.1
NORMALIZED GAIN – dB
100k
FREQUENCY – Hz
0.2
0.3
0.4
G = +2
R
L
= 150V
5V
3V
V
S
= 615V
65V
Figure 50. Fine-Scale Gain Flatness vs. Frequency,
Gain = +2, R
L
= 150 Ω
1.0
0
–1.0
10 100
–0.2
–0.4
–0.6
–0.8
0.2
0.4
0.6
0.8
GAIN MATCH – dB
1
FREQUENCY – MHz
1000
V
S
= 3V
R
F
= 681V
G = +2
R
L
= 150V
V
S
= 615V
R
F
= 715V
Figure 51. Closed-Loop Gain Matching vs. Frequency,
Gain = +2, R
L
= 150 Ω
0
1M 10M
–0.2
–0.4
0.2
0.4
GROUP DELAY – ns
100k
FREQUENCY – Hz
100M
4
2
6
8
DELAY
DELAY MATCHING
0
3V
5V
65V
615V
V
S
= 3V TO 615V
Figure 52. Group Delay and Group Delay Matching vs.
Frequency, G = +2, R
L
= 150 Ω