參數(shù)資料
型號: AD7678ASTZ
廠商: Analog Devices Inc
文件頁數(shù): 5/28頁
文件大?。?/td> 0K
描述: IC ADC 18BIT SAR 100KSPS 48-LQFP
標準包裝: 1
系列: PulSAR®
位數(shù): 18
采樣率(每秒): 100k
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): 26mW
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
供應商設備封裝: 48-LQFP(7x7)
包裝: 托盤
輸入數(shù)目和類型: 1 個差分,雙極
產(chǎn)品目錄頁面: 778 (CN2011-ZH PDF)
配用: EVAL-AD7678CB-ND - BOARD EVALUATION FOR AD7678
AD7678
Rev. A | Page 13 of 28
FREQUENCY (kHz)
–80
0
THD,
HARMONICS
(dB)
–90
–120
–150
–140
–100
10
40
50
03084-0-016
–110
–130
THD
THIRD
HARMONIC
SECOND
HARMONIC
20
30
Figure 11. THD and Harmonics vs. Frequency
INPUT LEVEL (dB)
–60
S
NR
RE
FE
RRE
D
TO
FULL
S
CALE
(dB)
101
98
100
03084-0-017
99
SNR
–50
0
–10
–20
–30
–40
104
102
103
VREF = 4.096V
S/(N+D)
Figure 12. SNR and S/(N+D) vs. Input Level
–55
S
NR,
S
/[N+D]
(dB)
99
97
03084-0-018
100
98
–35
125
85
65
5
–15
101
SNR
ENOB
14.5
15.0
15.5
16.5
16.0
S/(N+D)
25
45
105
TEMPERATURE (
C)
Figure 13. SNR, S/(N+D), and ENOB vs. Temperature
TEMPERATURE (
C)
–55
THD,
HARMONICS
(dB)
–120
–140
03084-0-019
–110
–130
–35
125
85
65
5
–15
–100
25
45
105
THIRD
HARMONIC
SECOND
HARMONIC
THD
Figure 14. THD and Harmonics vs. Temperature
SAMPLING RATE (SPS)
10000
OP
E
RATING
CURRE
NT
(
A)
0.001
1000
100
0.1
0.01
100k
10k
1k
100
1
10
AVDD
03084-0-020
DVDD
OVDD
10
1
Figure 15. Operating Current vs. Sampling Rate
TEMPERATURE (
C)
1000
–55
P
O
WE
R-DOWN
OP
E
RATING
CURRE
NTS
(nA)
800
0
400
200
600
125
DVDD
–35
–155
25456585
105
AVDD
OVDD
03084-0-021
Figure 16. Power-Down Operating Currents vs. Temperature
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