ad8260 Analog Devices, Inc., ad8260 Datasheet - Page 10

• Manufacturer Part Number: ad8260
• Description: High Current Driver Amplifier And Digital Vga/preamplifier With 3 Db Steps
• Manufacturer: Analog Devices, Inc.

AD8260
Figure 16. Small-Signal Pulse Response of the High Current Driver for Various
Figure 17. Small-Signal Pulse Response of the High Current Driver for Various
Values of Load Capacitance, C
–0.05
–0.10
–0.15
–0.20
Figure 15. Missing Tone Power Ratio for the High Current Driver
–0.05
–0.10
–0.20
–0.15
0 .05
0.20
0.15
0.10
0.05
0.20
0.15
0.10
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
–30
0
0
–30
0
Values of Load Resistance, R
C
NONINVERTING
–20
–20
LOAD
2
–10
–10
4
= 5pF
6
0
0
8
FREQUENCY (MHz)
10
10
LOAD
10
R
NONINVERTING
LOAD
TIME (ns)
20
20
R
R
R
R
, and R
TIME (ns)
12
LOAD
LOAD
LOAD
LOAD
= 500Ω
30
30
LOAD
14
= 10Ω
= 50Ω
= 100Ω
= 500Ω
LOAD
—See Figure 56
40
40
= 500 Ω—See Figure 56
16
50
50
18
C
C
C
LOAD
LOAD
LOAD
60
60
20
= 5pF
= 10pF
= 47pF
70
22
70
24
80
80
Rev. 0 | Page 10 of 32
Figure 18. Small-Signal Pulse Response of the High Current Driver for Various
Figure 19. Large-Signal Pulse Response of the High Current Driver for Various
Figure 20. Large-Signal Pulse Response of the High Current Driver for Various
Values of Load Capacitance, C
Values of Load Capacitance, C
–0.05
–0.10
–0.15
–0.20
–0.5
–1.0
–1.5
–2.0
–1.0
–1.5
–2.0
–0.5
0.20
0.15
0.10
0.05
2.0
1.5
1.0
0.5
2.0
1.5
1.0
0.5
0
0
0
–30
–30
30
C
NONINVERTING
Values of Load Resistance, R
R
NONINVERTING
R
NONINVERTING
–20
–20
LOAD
20
LOAD
LOAD
–10
–10
= 5pF
= 500Ω
= 50Ω
10
0
0
0
10
10
10
LOAD
R
R
R
R
LOAD
LOAD
LOAD
LOAD
LOAD
TIME (ns)
TIME (ns)
TIME (ns)
20
20
20
, and R
, and 50 Ω Load—See Figure 56
= 10Ω
= 50Ω
= 100Ω
= 500Ω
30
30
30
LOAD
LOAD
—See Figure 56
40
40
40
= 500 Ω—See Figure 56
50
50
50
C
C
C
C
C
C
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
60
60
60
= 5pF
= 10pF
= 47pF
= 5pF
= 10pF
= 47pF
70
70
70
80
80
80