78L03 Datasheet, 78L03 PDF, 78L03 Data sheet, 78L03 manual, 78L03 pdf, 78L03, datenblatt, Electronics 78L03, alldatasheet, free, datasheet, Datasheets. 78L03 datasheet, 78L03 circuit, 78L03 data sheet: KEXIN – Three-Terminal Voltage Regulator,alldatasheet, datasheet, Datasheet search site for Electronic. The information in this datasheet is intended to illustrate the operation and completeness of the information contained in this datasheet nor grant any license to.
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Spehro Pefhany k 4 Your reported voltage will only be as accurate as the VDD. Some sensors are ratio-metric and thus tolerate variations in VREF. You must provide the reference voltage, which will directly affect the accuracy of your ADC. I went through another document which was 18MB and found no Vref. datasbeet
TS 78L03 CX
A reasonable choice would be an external 2.
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There is a paper discussing this, for a thermistor of Kohm; check on robustcircuitdesign. ADC just survives with external ref.
Tie that to VDD. Have you examined the code-spread caused by external noise sources that couple into your sensor, or into your wiring between sensor and ADC, or into your ADC IC? I will connect a voltage divider to the input of the ADC to measure the voltage.
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You could use the supply voltage however that is usually a pretty crude and noisy reference source. Page 38 of datasheet shows a VREF pin. Sign up or log in Sign up using Google. Sign up using Facebook. This is a link to the data sheet and a pic of the ADC operation conditions. Remember to filter and decouple with a RC circuit if you do not have a separate Vref regulator such as the 78L If you want tighter tolerance than the 0.