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參數(shù)資料
| 型號(hào)： | EVAL-AD7858CB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADC |
| 中文描述： | 3 V至5 V單電源，200 kSPS的8通道，12位采樣ADC |
| 文件頁數(shù)： | 11/32頁 |
| 文件大?。?/td> | 315K |
| 代理商： | EVAL-AD7858CB |
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AD7858/AD7858L
REV. B
–11–
Table III. Channel Selection
SGL/
DIFF
CH2
CH1
CH0
AIN(+)*
AIN(–)*
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
AIN
1
AIN
3
AIN
5
AIN
7
AIN
2
AIN
4
AIN
6
AIN
8
AIN
1
AIN
3
AIN
5
AIN
7
AIN
2
AIN
4
AIN
6
AIN
8
AIN
2
AIN
4
AIN
6
AIN
8
AIN
1
AIN
3
AIN
5
AIN
7
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
*AIN(+) refers to the positive input seen by the AD7858/AD7858L sample and hold circuit,
*
AIN(
–
) refers to the negative input seen by the AD7858/AD7858L sample and hold circuit.
Table IV. Calibration Selection
CALMD
CALSLT1
CALSLT0
Calibration Type
0
0
0
A
Full Internal Calibration
is initiated where the Internal DAC is calibrated
followed by the Internal Gain Error, and finally the Internal Offset Error is
calibrated out. This is the default setting.
Here the
Internal Gain Error
is calibrated out followed by the
Internal Offset
Error
calibrated out.
This calibrates out the
Internal Offset Error
only.
This calibrates out the
Internal Gain Error
only.
A
Full System Calibration
is initiated here where first the Internal DAC is
calibrated followed by the System Gain Error, and finally the System Offset
Error is calibrated out.
Here the
System Gain Error
is calibrated out followed by the
System Offset
Error
.
This calibrates out the
System Offset Error
only.
This calibrates out the
System Gain Error
only.
0
0
1
0
0
1
1
1
0
0
1
0
1
0
1
1
1
1
1
0
1
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