參數(shù)資料
型號: AD7609BSTZ
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: 8-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP64
封裝: ROHS COMPLIANT, MS-026BCD, LQFP-64
文件頁數(shù): 10/35頁
文件大小: 1737K
代理商: AD7609BSTZ
AD7609
Preliminary Technical Data
Rev. PrD | Page 18 of 35
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
160
140
120
100
80
60
40
20
–140
C
HANNE
L
-T
O
-CHANN
E
L
I
S
O
L
AT
IO
N
(
d
B)
NOISE FREQUENCY (kHz)
±10V RANGE
±5V RANGE
AVCC, VDRIVE = 5V
INTERNAL REFERENCE
AD7606 RECOMMENDED DECOUPLING USED
fSAMPLE = 150kSPS
TA = 25°C
INTERFERER ON ALL UNSELECTED CHANNELS
09
76
0-
22
5
Figure 26. Channel-to-Channel Isolation
0
97
60
-0
23
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
±10V RANGE
±5V RANGE
Figure 27. 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
F
O
UT
V
O
L
T
AG
E
(
V
)
TEMPERATURE (°C)
AVCC = 4.75V
AVCC = 5V
AVCC = 5.25V
09
76
0-
02
9
Figure 28. Reference Output Voltage vs. Temperature for Different Supply
Voltages
–15
–10
–5
0
5
10
–20
–15
–10
–5
0
5
10
15
20
CURR
E
NT
(
A)
DIFFERENTIAL ANALOG INPUT VOLTAGE (Vx+ –(Vx–)) (V)
+25°C IN+
+25°C IN–
+85°C IN–
+85°C IN+
–40°C IN–
–40°C IN+
AVCC, VDRIVE = 5V
fSAMPLE = 200kSPS
09
76
0-
02
5
Figure 29. Analog Input Current vs. Input Voltage Over Temperature
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