參數(shù)資料
型號(hào): AD7634BSTZRL
廠(chǎng)商: Analog Devices Inc
文件頁(yè)數(shù): 5/32頁(yè)
文件大小: 0K
描述: IC ADC 18BIT DIFF BIPO 48-LQFP
標(biāo)準(zhǔn)包裝: 2,000
系列: PulSAR®
位數(shù): 18
采樣率(每秒): 670k
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): 225mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類(lèi)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: 帶卷 (TR)
輸入數(shù)目和類(lèi)型: 1 個(gè)差分,單極;1 個(gè)差分,雙極
Data Sheet
AD7634
Rev. B | Page 13 of 32
0
–180
AM
P
L
IT
UD
E
(
d
B
O
F
UL
L
S
CAL
E
)
0
FREQUENCY (kHz)
200
250
300
50
100
150
–20
–40
–60
–80
–100
–120
–140
–160
fS = 670kSPS
fIN = 20.1kHz
SNR = 98.3dB
THD = –116.8dB
SFDR = 121dB
SINAD = 97.8dB
06
40
6-
0
11
Figure 11. FFT 20 kHz, Bipolar 5 V Range, Internal Reference
E
N
OB
(
B
it
s)
80
82
84
86
88
90
92
94
96
98
100
1
10
100
1000
13.0
13.5
14.0
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
SNR
SINAD
ENOB
06
40
6-
0
12
FREQUENCY (kHz)
S
NR,
S
INAD
(d
B)
Figure 12. SNR, SINAD, and ENOB vs. Frequency, Unipolar 5 V Range
97
98
99
100
101
102
103
–55
–35
–15
5
25
45
65
85
105
125
06
40
6-
0
13
TEMPERATURE (°C)
S
NR
(
d
B)
0V TO 10V
±10V
0V TO 5V
±5V
Figure 13. SNR vs. Temperature
±10V
±5V
0V TO 10V
0V TO 5V
–60
–50
–40
–30
–20
–10
0
SNR
SINAD
INPUT LEVEL (dB)
S
NR
,S
IN
AD
RE
F
E
RR
E
D
T
O
F
UL
L
S
CA
L
E
(
d
B)
06
40
6-
01
4
100.0
100.5
101.0
101.5
102.0
102.5
103.0
Figure 14. SNR and SINAD vs. Input Level (Referred to Full Scale)
SF
D
R
(d
B
)
1
10
100
1000
06
40
6-
0
15
FREQUENCY (kHz)
T
HD,
HAR
M
O
NI
CS
(d
B)
0
20
40
60
80
100
120
140
SFDR
THD
SECOND
HARMONIC
THIRD
HARMONIC
–140
–130
–120
–110
–100
–90
–80
–70
Figure 15. THD, Harmonics, and SFDR vs. Frequency, Unipolar 5 V Range
0V TO 10V
±10V
97
98
99
100
101
102
103
–55
–35
–15
5
25
45
65
85
105
125
06
40
6-
0
16
TEMPERATURE (°C)
S
INAD
(
d
B)
0V TO 5V
±5V
Figure 16. SINAD vs. Temperature
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