Key result
A custom integrated noncontact sensor front-end amplifier achieved an input impedance of 60 fF||50 TΩ, input referred noise of 0.05 fA/√Hz and 200 nV/√Hz at 1 Hz, and power consumption of 1.5 μA.
Comparison
Custom integrated noncontact sensor front-end… vs Discrete off-the-shelf amplifiers
Design
Other
Authors
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May enable unobtrusive monitoring; leaves open clinical validation before adoption.
A novel custom integrated noncontact sensor front-end amplifier demonstrates ultra-high input impedance and low noise for unobtrusive physiological monitoring.
Yu et al. (2011) studied this question. Custom integrated noncontact sensor front-end amplifier was evaluated on Amplifier performance (input impedance, noise, power consumption). A custom integrated noncontact sensor front-end amplifier achieved an input impedance of 60 fF||50 TΩ, input referred noise of 0.05 fA/√Hz and 200 nV/√Hz at 1 Hz, and power consumption of 1.5 μA.
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