AD8331 Analog Devices, AD8331 Datasheet - Page 13

• Manufacturer Part Number: AD8331
• Description: Ultralow Noise VGAs with Preamplifier and Programmable RIN
• Manufacturer: Analog Devices

–1
–2
100
2
90
10
1
0
–40
0
200mV
Various Capacitive Loads, C
500mV
500mV
HILO = HI or LO, Top: Input, Bottom: Output Voltage
INPUT IS NOT TO SCALE
Figure 39. Large Signal Pulse Response, G = 30 dB,
20mV
–30
G = 30dB
Figure 40. Large Signal Pulse Response for
INPUT
Figure 41. Pin GAIN Transient Response,
–20
Top: V
–10
GAIN
0
, Bottom: Output Voltage
C
C
10
L
L
= 0pF
= 50pF
TIME (ns)
20
L
= 0 pF, 10 pF, 20 pF, 50 pF
30
40
50
10ns
400ns
60
70
80
Rev. C | Page 13 of 32
5
4
3
2
1
0
–1
–2
–3
–4
100
4
3
2
1
0
90
10
–10
0
0
Figure 44. LNA Overdrive Recovery, V
200mV
G = 40dB
1 V p-p Burst, V
0
Figure 43. Clamp Level Pulse Response
10
R
R
Figure 42. Clamp Level vs. R
CLMP
CLMP
10
= 48.1kΩ
= 7.15kΩ
HILO = HI
GAIN
20
= 0.27 V, VGA Output Shown
20
R
TIME (ns)
CLMP
HILO = LO
(k Ω )
R
R
30
CLMP
30
CLMP
AD8331/AD8332
= 2.67kΩ
INH
= 16.5kΩ
CLMP
40
0.05 V p-p to
100ns
40
50
50
60