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參數(shù)資料
| 型號： | EVAL-AD7859CB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADCs |
| 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)： | 10/28頁 |
| 文件大小： | 535K |
| 代理商： | EVAL-AD7859CB |
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AD7859/AD7859L
REV. A
–10–
Table IV. Calibration Selection
CALMD
CALSLT1
CALSLT0
Calibration Type
0
0
0
A
full internal calibration
is initiated. First the internal DAC is calibrated, then the
internal gain error and finally the internal offset error are removed. This is the default setting.
First the
internal gain error
is removed, then the
internal offset error
is removed.
The
internal offset error
only is calibrated out.
The
internal gain error
only is calibrated out.
A
full system calibration
is initiated. First the internal DAC is calibrated, followed by the
system gain error calibration, and finally the system offset error calibration.
First the
system gain error
is calibrated out, followed by the
system offset error
.
The
system offset error
only is removed.
The
system gain error
only is removed.
0
0
0
1
0
1
1
0
1
0
1
0
1
1
1
0
1
1
1
0
1
Table IIIa. Channel Selection for AD7859/AD7859L
Differential Sampling (SGL/DIFF = 0)
AMODE
CHSLT
2
AIN(+)*AIN(–)*
Bipolar or
Unipolar
1
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
x
0
1
0
1
x
AIN1
AIN3
AIN5
AIN7
x
AIN2
AIN4
AIN6
AIN8
x
Unipolar
Unipolar
Unipolar
Unipolar
Not Used
1
1
1
1
1
0
0
0
0
1
0
0
1
1
x
0
1
0
1
x
AIN1
AIN3
AIN5
AIN7
x
AIN2
AIN4
AIN6
AIN8
x
Bipolar
Bipolar
Bipolar
Bipolar
Not Used
*AIN(+) refers to the positive input seen by the AD7859/AD7859L sample-and-
hold circuitry.
AIN(–) refers to the negative input seen by the AD7859/AD7859L sample-and-
hold circuitry.
Table IIIb. Channel Selection for AD7859/AD7859L
Single-Ended Sampling (SGL/DIFF = 1)
AMODE
CHSLT
2
AIN(+)*AIN(–)*
Bipolar or
Unipolar
1
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
1
AIN1
AIN3
AIN5
AIN7
AGND
AGND
AGND
AGND
Unipolar
Unipolar
Unipolar
Unipolar
0
0
0
0
1
1
1
1
0
0
1
1
0
1
0
1
AIN2
AIN4
AIN6
AIN8
AGND
AGND
AGND
AGND
Unipolar
Unipolar
Unipolar
Unipolar
1
1
1
1
0
0
0
0
0
0
1
1
0
1
0
1
AIN1
AIN3
AIN5
AIN7
AIN8
AIN8
AIN8
AIN8
Unipolar
Unipolar
Unipolar
Unipolar
1
1
1
1
1
1
1
1
0
0
1
1
0
1
0
1
AIN2
AIN4
AIN6
AIN8
AIN8
AIN8
AIN8
AIN8
Unipolar
Unipolar
Unipolar
Unipolar
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