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Advantages
- Detection of picoampere currents at high bandwidths (~10 kHz)
- Increased sensitivity
- Improved energy efficiency
- Reduced noise from feedback
Potential Applications
- Biosensors
Additional Information
Background
Current structures for detecting sub-pA currents in biosensing limit the sensitivity, compactness, and energy efficiency of circuit systems. To detect such small currents with minimal noise, these structures typically require a transimpedance amplifier (TIA) and a delta-sigma analog-to-digital converter (ADC) that impose structural limitations and restrict the ability to enable simultaneous current sensing from multiple channels. The configurational demands of these circuits also require the area and power consumed to be large, causing the system to be energy inefficient. Consequently, conventional continuous-time delta-sigma ADCs also experience large noise from feedback which inhibits the minimum current detectable by the ADC.
Additional Technologies by these Inventors
Tech ID/UC Case
32664/2021-569-0
Related Cases
2021-569-0
Contact Information
- Name: Robert Takara
- Title :
- Department :
- Email: Takara@tia.ucsb.edu
- Phone : 805-893-5138
- Address :