參數(shù)資料
型號: ADC12138CIWM
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: ADC
英文描述: 1.2UF/100VDC METAL POLY CAP
中文描述: 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO28
封裝: SSOP-28
文件頁數(shù): 25/41頁
文件大?。?/td> 1085K
代理商: ADC12138CIWM
Tables
TABLE 1. Data Out Formats
DO Formats
DB0
X
DB1
X
DB2
X
DB3
X
DB4
Sign
DB5
MSB
DB6
10
DB7
9
DB8
8
DB9
7
DB10
6
DB11
5
DB12
4
DB13
3
DB14
2
DB15
1
DB16
LSB
with
Sign
MSB
First
17
Bits
13
Bits
17
Bits
13
Bits
16
Bits
12
Bits
16
Bits
12
Bits
Sign
MSB
10
9
8
7
6
5
4
3
2
1
LSB
LSB
First
LSB
1
2
3
4
5
6
7
8
9
10
MSB
Sign
X
X
X
X
LSB
1
2
3
4
5
6
7
8
9
10
MSB
Sign
without
Sign
MSB
First
0
0
0
0
MSB
10
9
8
7
6
5
4
3
2
1
LSB
MSB
10
9
8
7
6
5
4
3
2
1
LSB
LSB
First
LSB
1
2
3
4
5
6
7
8
9
10
MSB
0
0
0
0
LSB
1
2
3
4
5
6
7
8
9
10
MSB
X = High or Low state.
TABLE 2. ADC12138 Multiplexer Addressing
Analog Channel Addressed
and Assignment
with A/DIN1 tied to MUXOUT1
and A/DIN2 tied to MUXOUT2
CH2
CH3
CH4
A/D Input
Polarity
Assignment
Multiplexer
Output
Channel
Assignment
MUXOUT1
CH0
CH2
CH4
CH6
CH0
CH2
CH4
CH6
CH0
CH2
CH4
CH6
CH1
CH3
CH5
CH7
Mode
MUX
Address
DI0
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
DI1
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
DI2
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
DI3
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
CH0
+
CH1
CH5
CH6
CH7
COM
A/DIN1
+
+
+
+
+
+
+
+
+
+
+
+
A/DIN2
+
+
+
+
MUXOUT2
CH1
CH3
CH5
CH7
CH1
CH3
CH5
CH7
COM
COM
COM
COM
COM
COM
COM
COM
+
+
+
Differential
+
+
+
+
+
+
+
+
Single-Ended
+
+
+
+
A
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