参数资料
型号: AD7609BSTZ
厂商: ANALOG DEVICES INC
元件分类: ADC
英文描述: 8-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP64
封装: ROHS COMPLIANT, MS-026BCD, LQFP-64
文件页数: 11/35页
文件大小: 1737K
代理商: AD7609BSTZ
Preliminary Technical Data
AD7609
Rev. PrD | Page 19 of 35
22
20
18
16
14
12
10
8
AV
CC
S
U
P
L
Y
CURR
E
NT
(m
A)
OVERSAMPLING RATIO
AVCC, VDRIVE = 5V
TA = 25°C
INTERNAL REFERENCE
fSAMPLE VARIES WITH OS RATE
NO OS
OS2
OS4
OS8
OS16
OS32
OS64
09
76
0-
22
7
0
10
20
30
40
50
60
70
80
90
1
10
100
1k
10k
100k
1M
CM
RR
(
d
B
)
FREQUENCY (Hz)
±10V RANGE
±5V RANGE
AVCC, VDRIVE = 5V
TA = 25°C
fSAMPLE = 200kSPS
INTERNAL REFERENCE
09
76
0-
0
28
Figure 32. CMRR vs. Common Mode Ripple Frequency
Figure 30. 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
U
P
L
Y
RE
JE
C
T
IO
N
RA
T
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
09
76
0-
13
0
Figure 31. PSRR
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