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參數(shù)資料
| 型號： | RHF1401KSO-01V |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | ADC |
| 英文描述： | 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO48 |
| 封裝： | HERMETIC SEALED, SOP-48 |
| 文件頁數(shù)： | 15/34頁 |
| 文件大?。?/td> | 1474K |
| 代理商： | RHF1401KSO-01V |
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Electrical characteristics (after 300 kRad)
RHF1401
22/34
Doc ID 13317 Rev 5
Figure 45.
Differential implementation using a balun
Some applications may require a single-ended input, which can easily be achieved with the
configuration shown in Figure 46. However, with this type of configuration, a degradation in
the rated performance of the RHF1401 may occur, compared with a differential
configuration. A sufficiently decoupled DC reference should be used to bias the RHF1401
inputs. An AC-coupled analog input can also be used and the DC analog level set with a
high value resistor R (10 k
Ω to 100 kΩ) connected to a proper DC source. Cin and R behave
like a high-pass filter and are calculated to set the lowest-possible cut-off frequency.
Figure 46.
AC-coupling single-ended input configuration
AM04571
100 nF* ceramic
(as close as
possible to
INCM pin)
50
Ω
100 pF
ADT1 -1
1:1
Analog input signal
50
Ω track
Short track
470 nF* ceramic
(as close as possible
to the transformer)
External
INCM
(optional)
*the use of a ceramic technology is
preferable for a large bandwidth
stability of the capacitor
VIN
VINB
INCM
(50
Ω output)
AM04572
100 nF ceramic*
(as close as possible
to INCM pin)
R
Cin
Short track
50
Ω
External INCM
(optional)
R
VIN
VINB
INCM
Short track
470 pF
ceramic*
100 nF
ceramic*
*the use of a ceramic technology is
preferable for a large bandwidth
stability of the capacitor
Analog input signal
(50
Ω output)
50
Ω track
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