AVDD = 3.0 V, DRVDD = 2.5 V, maximum sample rate with D" />
參數(shù)資料
型號: AD9237BCPZRL7-20
廠商: Analog Devices Inc
文件頁數(shù): 3/24頁
文件大?。?/td> 0K
描述: IC ADC 12BIT SGL 20MSPS 32LFCSP
產(chǎn)品變化通告: Product Discontinuance 27/Oct/2011
標準包裝: 1,500
位數(shù): 12
采樣率(每秒): 20M
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 3
功率耗散(最大): 85mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 32-LFCSP-VQ(5x5)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 2 個單端,單極;1 個差分,單極
Data Sheet
AD9237
Rev. B | Page 11 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = 3.0 V, DRVDD = 2.5 V, maximum sample rate with DCS disabled, TA = 25°C, 2 V p-p differential input, AIN = –0.5 dBFS,
VREF = 1.0 V internal, FFT length 16 K, unless otherwise noted.
FREQUENCY (MHz)
AMPLITUDE
(dBFS)
0
–20
–40
–60
–80
–100
–120
0
10
6
8
4
2
05455-008
SNR = 66.9dBc
SFDR = 87.0dBc
Figure 8. AD9237-20 10 MHz FFT
FREQUENCY (MHz)
AMPLITUDE
(dBFS)
0
–20
–40
–60
–80
–100
–120
0
20
12
16
8
4
18
10
14
6
2
05455-009
SNR = 66.8dBc
SFDR = 83.1dBc
Figure 9. AD9237-40 20 MHz FFT
FREQUENCY (MHz)
AMPLITUDE
(dBFS)
0
–20
–40
–60
–80
–100
–120
05455-010
SNR = 66.0dBc
SFDR = 78.6dBc
0
30 32.5
25
20
15
10
5
Figure 10. AD9237-65 70 MHz FFT
CLOCK FREQUENCY (MSPS)
SNR/SFDR
(dBc)
90
85
80
75
70
65
60
10.0
20.0
17.5
15.0
12.5
05455-011
SNR
SFDR
Figure 11. AD9237-20 SNR/SFDR vs. Clock Frequency with fIN = 10 MHz
CLOCK FREQUENCY (MSPS)
SNR/SFDR
(dBc)
90
85
80
75
SFDR
SNR
70
65
20
40
35
30
25
05455-012
Figure 12. AD9237-40 SNR/SFDR vs. Clock Frequency with fIN = 20 MHz
CLOCK FREQUENCY (MSPS)
SNR/SFDR
(dBc)
90
85
80
75
70
65
60
40
65
55
60
50
45
05455-013
SNR
SFDR
Figure 13. AD9237-65 SNR/SFDR vs. Clock Frequency with fIN = 35 MHz
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