參數(shù)資料
型號: AD7643BSTZRL
廠商: Analog Devices Inc
文件頁數(shù): 6/28頁
文件大?。?/td> 0K
描述: IC ADC 18BIT DIFFER W/REF 48LQFP
標(biāo)準(zhǔn)包裝: 2,000
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: 帶卷 (TR)
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 14 of 28
96.0
93.0
–60
0
INPUT LEVEL (dB)
S
NR,
S
INAD
R
E
F
E
RRE
D
T
O
F
U
L
S
CAL
E
(
d
B)
SINAD
SNR
06
02
4-
01
7
95.5
95.0
94.5
94.0
93.5
–50
–40
–30
–20
–10
Figure 17. SNR and SINAD vs. Input Level (Referred to Full Scale)
16
0
125
–55
TEMPERATURE (°C)
O
P
E
RAT
ING
CUR
RE
NT
S
(
A
)
14
12
10
8
6
4
2
–35
–15
5
25
456585
105
DVDD
OVDD, 3.3V
OVDD, 2.5V
AVDD
06
02
4-
018
Figure 18. Power-Down Operating Currents vs. Temperature
100k
0.01
10
10M
SAMPLING RATE (SPS)
O
P
E
RA
T
ING
CURR
E
NT
S
(
A)
100
1k
10k
100k
1M
0.1
1
10
100
1k
10k
AVDD
DVDD
OVDD = 3.3V
OVDD = 2.5V
PDREF = PDBUF = HIGH
06
02
4-
01
9
Figure 19. Operating Current vs. Sampling Rate
20
4
0
CL (pF)
t 12
DE
L
A
Y
(
n
s)
18
16
14
12
10
8
6
50
100
150
200
OVDD = 2.5V @ 85°C
OVDD = 3.3V @ 85°C
OVDD = 3.3V @ 25°C
OVDD = 2.5V @ 25°C
06
02
4-
0
20
Figure 20. Typical Delay vs. Load Capacitance CL
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