參數(shù)資料
型號: AD7608BSTZ-RL
廠商: Analog Devices Inc
文件頁數(shù): 9/32頁
文件大小: 0K
描述: IC DAS W/ADC 18BIT 8CH 64LQFP
標準包裝: 1,500
類型: 數(shù)據(jù)采集系統(tǒng)(DAS),ADC
分辨率(位): 18 b
采樣率(每秒): 200k
數(shù)據(jù)接口: DSP,MICROWIRE?,并聯(lián),QSPI?,串行,SPI?
電壓電源: 模擬和數(shù)字
電源電壓: 2.3 V ~ 5.25 V,4.75 V ~ 5.25 V
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(10x10)
包裝: 帶卷 (TR)
Data Sheet
AD7608
Rev. A | Page 17 of 32
80
85
90
95
100
105
110
NO OS
OS × 2
OS × 4 OS × 8 OS × 16 OS × 32 OS × 64
DY
NAM
IC
RANG
E
(
d
B)
OVERSAMPLING RATIO
AVCC, VDRIVE = 5V
TA = 25 °C
INTERNAL REFERENCE
fSAMPLE SCALES WITH OS RATIO
fIN SCALES WITH OS RATIO
±5V RANGE
±10V RANGE
08938-
026
Figure 26. Dynamic Range vs. Oversampling Ratio
2.5010
2.5005
2.5000
2.4995
2.4990
2.4985
–40
–25
–10
5
20
35
50
65
80
2.4980
R
E
FOU
T
V
OLTA
GE
(
V
)
TEMPERATURE (°C)
AVCC = 4.75V
AVCC = 5V
AVCC = 5.25V
08938-
129
Figure 27. Reference Output Voltage vs. Temperature for Different
Supply Voltages
8
–10
–8
–6
–4
–2
10
8
6
4
2
0
–10
–8
–6
–4
–2
0
2
4
6
INP
UT
CURRE
NT
(
A)
INPUT VOLTAGE (V)
–40°C
+25°C
+85°C
AVCC, VDRIVE = 5V
fSAMPLE = 200kSPS
08938-
028
Figure 28. Analog Input Current vs. Input Voltage Across Temperature
22
20
18
16
14
12
10
8
AV
CC
S
UP
P
L
Y
CURRE
NT
(
mA)
OVERSAMPLING RATIO
AVCC, VDRIVE = 5V
TA = 25°C
INTERNAL REFERENCE
fSAMPLE VARIES WITH OS RATE
NO OS
OS2
OS4
OS8
OS16
OS32
OS64
08938-
027
Figure 29. Supply Current vs. Oversampling Rate
140
0
1100
1000
900
800
700
600
500
400
300
200
100
60
70
80
90
100
110
120
130
P
O
W
E
R
S
UP
P
L
Y
RE
JE
CT
IO
N
RAT
IO
(
d
B)
AVCC NOISE FREQUENCY (kHz)
AVCC, VDRIVE = 5V
INTERNAL REFERENCE
AD7608 RECOMMENDED DECOUPLING USED
fSAMPLE = 200kSPS
TA = 25°C
±10V RANGE
±5V RANGE
08938-
130
Figure 30. PSRR
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