https://github.com/vargalaszlo87/widlar-bandgap

It's a temperature independent voltage reference with transistor only.
https://github.com/vargalaszlo87/widlar-bandgap

bandgap ltspice ltspice-simulation-files ltspicexvii temperature-independent transistor-only voltage-reference widlar widlar-bandgap

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It's a temperature independent voltage reference with transistor only.

• Host: GitHub
• URL: https://github.com/vargalaszlo87/widlar-bandgap
• Owner: vargalaszlo87
• Created: 2024-01-04T19:32:42.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2025-03-12T13:48:51.000Z (3 months ago)
• Last Synced: 2025-03-12T14:41:47.863Z (3 months ago)
• Topics: bandgap, ltspice, ltspice-simulation-files, ltspicexvii, temperature-independent, transistor-only, voltage-reference, widlar, widlar-bandgap
• Homepage:
• Size: 8.79 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Widlar Bandgap Voltage Reference

It's a temperature independent voltage reference with transistor only.

## How it works

Vref = 1.278V. In the temperature range 0-50 °C, the output voltage varies by 0.056%. (Boundary condition: Input voltage = 5V)

![image](https://github.com/user-attachments/assets/b57e7f0b-6101-470c-97e5-111bc2423cd4)

Oscillogram from LTSpice:

![image](https://github.com/user-attachments/assets/92afff69-af87-415e-a364-f61b368ffe9b)

## 👨‍⚖️ License

Distributed under the [MIT](https://choosealicense.com/licenses/mit/) License. See `LICENSE.txt` for more information.

## 📬 Contact

Varga Laszlo - https://vargalaszlo.com - [email protected]

Project Link: https://github.com/vargalaszlo87/widlar-bandgap

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