Low power band gap voltage reference circuit

Image sensors (as most circuits) need a stable band gap reference for reference voltages and bias currents.

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Concept of a bandgap voltage reference that is sampled and only powered for short periods of time controlled by signal 'pon'.

Project tasks

 Investigate high performance bandgap voltage generator with ~mW of active power, and ~nW average power. Components may include:

  • Normal band gap with sampled output.
  • Low leakage sampling switch, very long duty cycle.
  • Challenging because image sensors operate in a wide temperature range.

 

Design and develop a band gap circuit with dynamic power off, short start-up time and low leakage sampling switches on output.

Published May 12, 2026 10:56 AM - Last modified May 18, 2026 10:23 AM

Supervisor(s)

Scope (credits)

60

Relevant Programmes

Electronics, Informatics and Technology - Microelectronics and Sensor Technology