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參數資料
| 型號： | 7106G-R40-T |
| 廠商： | UNISONIC TECHNOLOGIES CO LTD |
| 元件分類： | ADC |
| 英文描述： | 1-CH PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO40 |
| 封裝： | HALOGEN FREE, SSOP-40 |
| 文件頁數： | 17/18頁 |
| 文件大小： | 438K |
| 代理商： | 7106G-R40-T |
7106
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
8 of 18
www.unisonic.com.tw
QW-R502-018.D
DETAILED DESCRIPTION(Cont.)
DIFFERENTIAL REFERENCE
The reference voltage can be generated anywhere within the power supply voltage of the converter. The main
source of common mode error is a roll-over voltage caused by the reference capacitor losing or gaining charge to
stray capacity on its nodes. If there is a large common mode voltage, the reference capacitor can gain charge
(increase voltage) when called up to de-integrate a positive signal but lose charge (decrease voltage) when called up
to de-integrate a negative input signal. This difference in reference for positive or negative input voltage will give a
roll-over error. However, by selecting the reference capacitor such that it is large enough in comparison to the stray
capacitance, this error can be held to less than 0.5 count worst case. (See Component Value Selection)
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