AD8331ARQ-REEL Analog Devices Inc, AD8331ARQ-REEL Datasheet - Page 15

• Manufacturer Part Number: AD8331ARQ-REEL
• Description: IC VGA SINGLE W/PREAMP 20-SSOP
• Manufacturer: Analog Devices Inc
• Series: X-AMP®r
• Type: Variable Gain Amplifierr

Specifications of AD8331ARQ-REEL

• Rohs Status: RoHS non-compliant
• Design Resources: Interfacing the High Frequency AD8331 to AD9215 (CN0096)
• Applications: Signal Processing
• Mounting Type: Surface Mount
• Package / Case: 20-QSOP
• For Use With: AD8331-EVALZ - BOARD EVAL FOR AD8331

100
500
400
300
200
100
2.5
2.0
1.5
1.0
0.5
Figure 26. Short-Circuit, Input-Referred Noise vs. Frequency
0.1
10
100k
1
0
Figure 27. Short-Circuit, Input-Referred Noise vs. V
0
0
R
HILO = LO OR HI
f
S
= 10MHz
= 0, R
Figure 25. Output-Referred Noise vs. V
HI GAIN
LO GAIN
IZ
0.2
0.2
=
∞
, V
R
HILO = LO OR HI, f = 10MHz
GAIN
1M
S
= 0, R
FREQUENCY (Hz)
= 1V,
0.4
0.4
AD8332
AD8334
AD8331
V
V
IZ
GAIN
GAIN
=
∞
,
(V)
(V)
0.6
0.6
10M
GAIN
0.8
0.8
GAIN
100M
1.0
1.0
Rev. G | Page 15 of 56
Figure 28. Short-Circuit, Input-Referred Noise vs. Temperature
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.1
10
1
7
6
5
4
3
2
1
0
–50
1
50
Figure 30. Noise Figure vs. R
f = 5MHz, R
V
R
V
INCLUDES NOISE OF VGA
SIMULATED RESULTS
GAIN
GAIN
S
= 0, R
= 1V
= 1V, f = 10MHz
–30
Figure 29. Input-Referred Noise vs. R
IZ
IZ
=
100
∞
=
R
∞
,
–10
R
R
R
IN
,
SOURCE RESISTANCE (Ω)
IN
IN
SOURCE RESISTANCE (Ω)
IN
AD8331/AD8332/AD8334
R
10
= 100Ω
= 50Ω
= 200Ω
IZ
= 75Ω
TEMPERATURE (°C)
R
=
S
∞
10
THERMAL NOISE
ALONE
S
for Various Values of R
30
100
50
S
70
IN
1k
90
1k