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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I went through another document which was 18MB and found no Vref. Remember to filter and decouple with a RC circuit if you do not have a separate Vref regulator such as the 78L Sign up using Datashert. I will connect a voltage divider to the input of the ADC to measure the voltage.

78L03 データシート, Datasheet – alldatasheet

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? You must provide the reference voltage, which will directly affect the accuracy of your ADC. There is a paper discussing this, for a thermistor of Kohm; check on robustcircuitdesign. The Varef pin has high impedance when the converter is not operating, however it draws 30pC typically per conversion.


Post as a guest Name. Some sensors are ratio-metric and thus tolerate variations in VREF. Sign up using Email and Password. Your reported voltage will only be as accurate as the VDD. Bridges, such as strain gauges, are one such sensor.

If you want tighter tolerance than the 0. Email Required, but datashfet shown. I see no mention of internal reference in the Table of Contents. Even an inexpensive TL will be okay at maximum conversion rate.

This is a link to the data sheet and a pic of the ADC operation conditions. Home Questions Tags Users Unanswered. Tie that to VDD.

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ADC just survives with external ref. I found the equations to calculate the result. Page 38 of datasheet shows a VREF pin.

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You can go as low as 1. Spehro Pefhany k 4 By using our site, you acknowledge that you have datssheet and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

TS 78L03 CX

You could use the supply voltage however that is usually a pretty crude and noisy reference source. A reasonable choice would be an external 2. AngeloQ 1, 1 5 Post Your Answer Discard By clicking “Post Your Vatasheet, you acknowledge that you have read our updated terms datasheeet serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

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