參數(shù)資料
型號: AD7643BSTZ
廠商: Analog Devices Inc
文件頁數(shù): 5/28頁
文件大?。?/td> 0K
描述: IC ADC 18BIT DIFFER W/REF 48LQFP
標準包裝: 1
系列: PulSAR®
位數(shù): 18
采樣率(每秒): 1.25M
數(shù)據(jù)接口: 串行,并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 80mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 托盤
輸入數(shù)目和類型: 1 個差分,雙極
配用: EVAL-AD7643CBZ-ND - BOARD EVALUATION FOR AD7643
AD7643
Rev. 0 | Page 13 of 28
FREQUENCY (kHz)
A
M
P
L
ITU
D
E
(d
B
of
Ful
l
S
ca
le
)
0
–180
0600
0
–180
0600
FREQUENCY (kHz)
A
M
P
L
ITU
D
E
(d
B
of
Ful
l
S
ca
le
)
06
02
4-
01
1
–20
–40
–60
–80
–100
–120
–140
–160
100
200
300
400
500
fS = 1.25MSPS
fIN = 20.03kHz
SNR = 93.4dB
THD = –113dB
SFDR = 108dB
SINAD = 93.4dB
06
02
4-
01
4
–20
–40
–60
–80
–100
–120
–140
–160
100
200
300
400
500
fS = 1.25MSPS
fIN = 100.03kHz
SNR = 93dB
THD = –106dB
SFDR = 109dB
SINAD = 92.8dB
Figure 11. FFT 20 kHz
95
75
1
1000
FREQUENCY (kHz)
S
NR,
S
INAD
(
d
B)
SINAD
ENOB
SNR
06
02
4-
01
2
93
91
89
87
85
83
81
79
77
16.0
12.0
E
N
OB
(
B
it
s)
15.6
15.2
14.8
14.4
14.0
13.6
13.2
12.8
12.4
10
100
Figure 12. SNR, SINAD, and ENOB vs. Frequency
–70
–140
1
1000
FREQUENCY (kHz)
T
HD,
HAR
M
O
NI
CS
(
d
B)
SFDR
THD
06
02
4-
01
3
120
20
S
F
DR
(
d
B)
110
100
90
80
70
60
50
40
30
10
100
–80
–90
–100
–110
–120
–130
THIRD HARMONIC
SECOND HARMONIC
Figure 13. THD, Harmonics, and SFDR vs. Frequency
Figure 14. FFT 100 kHz
95
94
93
92
91
90
19
18
17
16
15
14
–55
125
105
SNR
85
65
45
25
5
–15
–35
TEMPERATURE (°C)
S
NR,
S
INAD
(
d
B)
EN
O
B
(B
it
s)
06
02
4-
0
15
ENOB
SINAD
Figure 15. SNR, SINAD, and ENOB vs. Temperature
–85
–90
–95
–100
–105
–110
–115
–120
–125
–130
–135
–140
–145
120
60
70
80
90
100
110
–55
125
105
85
65
45
25
5
–15
–35
TEMPERATURE (°C)
T
HD,
HARM
O
NI
C
S
(
d
B)
S
F
DR
(
d
B
)
06
02
4-
0
16
SFDR
THD
SECOND
HARMONIC
THIRD
HARMONIC
Figure 16. THD, Harmonics, and SFDR vs. Temperature
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