AVDD, DRVDD = 3.0 V, T = 25°C, AIN
參數(shù)資料
型號： AD9248BSTZRL-40
廠商： Analog Devices Inc
文件頁數(shù)： 4/48頁
文件大?。?/td> 0K
描述： IC ADC 14BIT DUAL 40MSPS 64LQFP
標(biāo)準(zhǔn)包裝： 2,000
位數(shù)： 14
采樣率（每秒）： 40M
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 2
功率耗散（最大）： 330mW
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： 64-LQFP
供應(yīng)商設(shè)備封裝： 64-LQFP（7x7）
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 4 個(gè)單端，單極；2 個(gè)差分，單極
AD9248
Rev. B | Page 12 of 48
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD, DRVDD = 3.0 V, T = 25°C, AIN differential drive, full scale = 2 V, unless otherwise noted.
–120
10
MAGNITUDE
(dBFS
)
15
20
25
30
5
0
–100
–80
–60
–40
–20
0
FREQUENCY (MHz)
04446-060
SNR = 72.6dB
SINAD = 71.9dB
H2 = –81.5dBc
H3 = –86.8dBc
SFDR = 81.5dB
CROSSTALK
SECOND
HARMONIC
THIRD
HARMONIC
Figure 5. Single-Tone FFT of Channel A Digitizing fIN = 12.5 MHz
While Channel B Is Digitizing fIN = 10 MHz
–120
10
MAGNITUDE
(dBFS
)
15
20
25
30
5
0
–100
–80
–60
–40
–20
0
FREQUENCY (MHz)
04446-061
SNR = 70.5dB
SINAD = 69.4dB
H2 = –92.3dBc
H3 = –80.1dBc
SFDR = 80.1dBc
SECOND
HARMONIC
THIRD HARMONIC
CROSSTALK
Figure 6. Single-Tone FFT of Channel A Digitizing fIN = 70 MHz
While Channel B Is Digitizing fIN = 76 MHz
–120
10
M
A
G
N
ITUDE
(dBFS)
15
20
25
30
5
0
–100
–80
–60
–40
–20
0
FREQUENCY (MHz)
04446-
062
SNR = 68.1dB
SINAD = 68.0dB
H2 = –83.4dBc
H3 = –83.1dBc
SFDR = 75.1dBc
SECOND HARMONIC
CROSSTALK
Figure 7. Single-Tone FFT of Channel A Digitizing fIN = 120 MHz
While Channel B Is Digitizing fIN = 126 MHz
ADC SAMPLE RATE (MSPS)
90
55
40
S
F
DR/S
NR
(dBc
)
85
80
75
70
65
60
45
50
55
60
65
95
100
50
04446-007
SNR
SFDR
Figure 8. AD9248-65 Single-Tone SFDR/SNR vs. FS with fIN = 32.5 MHz
SNR
SFDR
SNR
ADC SAMPLE RATE (MSPS)
90
55
40
S
F
DR/S
NR
(dBc
)
85
80
75
70
65
60
95
100
50
35
30
25
20
04446-008
Figure 9. AD9248-40 Single-Tone SFDR/SNR vs. FS with fIN = 20 MHz
SFDR
SNR
ADC SAMPLE RATE (MSPS)
90
55
S
F
DR/S
NR
(dBc
)
85
80
75
70
65
60
95
100
50
0
5
10
15
20
04446-009
Figure 10. AD9248-20 Single-Tone SFDR/SNR vs. FS with fIN = 10 MHz
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