參數(shù)資料
型號: AD9481-PCBZ
廠商: Analog Devices Inc
文件頁數(shù): 5/28頁
文件大?。?/td> 0K
描述: BOARD EVAL 8BIT 250MSPS 44-TQFP
標準包裝: 1
ADC 的數(shù)量: 1
位數(shù): 8
采樣率(每秒): 250M
數(shù)據(jù)接口: 并聯(lián)
輸入范圍: 1 Vpp
在以下條件下的電源(標準): 439mW @ 250MSPS
工作溫度: -40°C ~ 85°C
已用 IC / 零件: AD9481
已供物品:
相關(guān)產(chǎn)品: AD9481BSUZ-250-ND - IC ADC 8BIT 250MSPS 3.3V 44-TQFP
AD9481
Rev. 0 | Page 13 of 28
75
70
65
60
55
50
45
40
0
300
SFDR
SNR
SINAD
250
200
150
100
50
05045-010
SAMPLE CLOCK (MHz)
(dB)
Figure 10. SNR, SINAD, SFDR vs. Sample Clock Frequency,
AIN = 70 MHz @ 1 dB
80
70
60
50
40
30
20
10
0
–70
0
–10
–20
–30
–40
–50
–60
05045-011
ANALOG INPUT DRIVE LEVEL (dBFS)
(dB)
SFDR (dBFS)
SFDR (dBc)
60dB
REFERENCE LINE
Figure 11. SFDR vs. AIN Input Level; AIN = 70 MHz @ 250 MSPS
0
–90
–80
–70
–60
–50
–40
–30
–20
–10
040
80
20
60
100
120
05045-012
(MHz)
(dB)
F1, F2 = –7dBFS
2F2–F1 = –65.9dBc
2F1–F2 = –64.9dBc
Figure 12. Two-Tone Intermodulation Distortion
(69.3 MHz and 70.3 MHz; fS = 250 MSPS)
0
140
IAVDD
IDRVDD
120
100
80
60
40
20
0
100
200
50
150
250
300
05045-013
SAMPLE CLOCK (MSPS)
CURRE
NT
(mA)
Figure 13. IAVDD and IDRVDD vs. Clock Rate, CLOAD = 5 pF
AIN = 70 MHz @ 1 dBFS
40
50
49
48
47
46
45
44
43
42
41
20
40
60
30
50
70
80
05045-014
CLOCK POSITIVE DUTY CYCLE (%)
(dB)
DCS ON
DCS OFF
Figure 14. SNR, SINAD vs. Clock Pulse-Width High,
AIN = 70 MHz @ 1 dBFS, 250 MSPS, DCS On/Off
40.0
50.0
47.5
45.0
42.5
55
75
70
65
60
0.5
1.1
0.9
1.5
0.7
1.3
1.7
1.9
05045-015
EXTERNAL VREF VOLTAGE (V)
S
NR,
S
INAD
(dB)
S
F
DR
(dBc
)
SNR
SINAD
SFDR
Figure 15. SNR, SINAD, and SFDR vs. VREF in External Reference Mode, AIN =
70 MHz @ 1 dBFS, 250 MSPS
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