An integrated and new interface circuit with temperature compensation has been developed to enhance the ISFET readout circuit stability. The bridge-type floating source circuit suitable for sensor array processing has been proposed to maintain reliable constant drain–source voltage and constant drain current (CVCC) conditions for measuring the threshold voltage variation of ISFET due to the cor...

OBJECTIVE This paper describes a low power closed-loop compressive sensing (CS) based neural recording system. This system provides an efficient method to reduce data transmission bandwidth for implantable neural recording devices. By doing so, this technique reduces a majority of system power consumption which is dissipated at data readout interface. The design of the system is scalable and is...

This article describes the most recent generation of full-custom analog integrated circuit that is intended for low-power, high-speed sampling of Radio-Frequency (RF) transients in excess of the Nyquist minimum. A direct descendant of the Self-Triggered Recorder for Analog Waveforms (STRAW) architecture, and earlier variants of the LABRADOR (Large Analog Bandwidth Recorder and Digitizer with Or...

A crucial detector of the NA62 experiment is the beam spectrometer named Gigatracker. It consists of three stations of hybrid silicon pixels sensors with 150 ps (rms) of time resolution and 100 μm (rms) of space resolution. In addition the system operates under a high radiation environment and a high density of particles (up to 1.5 MHz/mm in the centre and 0.8 1 GHz in total). To meet these req...

The continuous improvements of CMOS image sensors (CIS) in terms of quantum efficiency, speed, resolution, etc. brought this low-cost devices into high-performance applications replacing progressively the charge coupled devices (CCDs). Photoelectron counting capability is the next step for CIS for ultimate low light performance and new imaging paradigms. With Recent improvements of CIS sensitiv...

Implementation of high resolution passive THz cameras operated at cryogenic temperatures of a few Kelvin benefits from a large number of pixels. At present, building a cryogenic multiplexed read-out circuit represents a challenging task. Here we propose and demonstrate broadband niobium-based tunnel junction bolometers operating in equilibrium regime at 4 K, and read out with a room temperature...

The paper presents a fully integrated low-noise readout circuit for the purpose of front-end amplification in pyroelectric infrared focal Ž . Ž . plane arrays IRFPA . A low-noise and low-power charge sensitive amplifier CSA has been fabricated and characterised in a standard CMOS process. A value of 11.4 nVr6Hz at 100 Hz input referred noise voltage has been measured for a maximum power dissipa...

The timescale-invariant recognition of temporal stimulus sequences is vital for many species and poses a challenge for their sensory systems. Here we present a simple mechanistic model to address this computational task, based on recent observations in insects that use rhythmic acoustic communication signals for mate finding. In the model framework, feedforward inhibition leads to burst-like re...

To overcome light interference, including a large DC offset and ambient light variation, a robust photoplethysmogram (PPG) readout chip is fabricated using a 0.13-μm complementary metal-oxide-semiconductor (CMOS) process. Against the large DC offset, a saturation detection and current feedback circuit is proposed to compensate for an offset current of up to 30 μA. For robustness against optical...

We present here our recent results on qubit reset scheme based a quantum-circuit refrigerator (QCR). In particular, we use the photon-assisted quasiparticle tunneling through superconductor–insulator–normal-metal–insulator–superconductor junction to controllably decrease energy relaxation time of during QCR operation. experiment, transmon with dispersive readout. The is capacitively coupled its...