AD8321(Rev0) View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
AD8321 Datasheet PDF : 19 Pages
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0.6
0.3
f = 10MHz
0
–0.3
f = 42MHz
–0.6
f = 65MHz
–0.9
–1.2 0
8 16 24 32 40 48 56 64 72
GAIN CONTROL – Decimal
Figure 4. Gain Error vs. Gain Control
Typical Performance Characteristics–AD8321
30
20
71D
10
0
46D
–10
23D
–20
–30
00D
–40
0.1
1
10
100
FREQUENCY – MHz
1000
Figure 5. AC Response
70
f = 10MHz
PD =1
60
50
40
30
20
10
0 8 16 24 32 40 48 56 64 72
GAIN CONTROL – Decimal
Figure 6. Output Referred Noise vs.
Gain Control
70
60
MAX GAIN
(71D)
50
PD = 1
40
30
MIN GAIN
(00D)
20
10
1
10
100
FREQUENCY – MHz
Figure 7. Output Referred Noise vs.
Frequency
–30
fO = 65MHz
VIN = 0.137V p-p
–40
(PIN = –15dBm)
(POUT = 11dBm @
MAX GAIN)
–50
HD3
–60
HD2
–70
–80 0
8 16 24 32 40 48 56 64 72
GAIN CONTROL – Decimal
Figure 8. Harmonic Distortion vs.
Gain Control
–47
PIN = –14dBm
(POUT = 12dBm @
MAX GAIN)
–50
PIN = –13dBm
(POUT = 13dBm @
MAX GAIN)
–53
PIN = –15dBm
(POUT = 11dBm @
MAX GAIN)
–56
–59
5
PIN = –17dBm
(POUT = 9dBm @
MAX GAIN)
15 25 35 45 55 65
FUNDAMENTAL FREQUENCY – MHz
Figure 9. Second Order Harmonic
Distortion vs. Frequency for Various
Input Levels
–47
PIN = –13dBm
(POUT = 13dBm @
MAX GAIN)
–50
PIN = –14dBm
(POUT = 12dBm @
MAX GAIN)
–53
–56
–59
5
PIN = –15dBm
(POUT = 11dBm @
MAX GAIN)
PIN = –17dBm
(POUT = 9dBm @
MAX GAIN)
15 25 35 45 55 65
FUNDAMENTAL FREQUENCY – MHz
Figure 10. Third Order Harmonic
Distortion vs. Frequency for Various
Input Levels
20
PO = 11dBm
MAX GAIN
0
–20
–40
–60
–80
41.0 41.4
41.8
42.2 42.6 43.0
FREQUENCY – MHz
Figure 11. Two-Tone Intermodula-
tion Distortion
30
29
PO = 11dBm
MAX GAIN
28
27
26
25
24
23
22
5 15 25 35 45 55 65
FREQUENCY – MHz
Figure 12. Third Order Intercept vs.
Frequency
REV. 0
–5–
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