This paper presents a novel analog front-end for EMG sensor signal processing powered by 1 V. Such low supply voltage requires specific design steps enabled using the 28 nm fully depleted silicon on insulator (FDSOI) technology from STMicroelectronics. An active ground circuit is implemented to keep input common-mode close and minimize external interference. The amplifier comprises an instrumentation (INA) programmable-gain (PGA). Both are in differential topology. actual performance of...

This work presents and discusses a test method developed to allow the measurement of total ionising dose induced changes in temperature effects on electronic devices for space nuclear applications. Two demonstration experiments testing commercial PMOS transistors were performed, using different methods I-V curve measurement. The during irradiation was controlled precisely thermoelectric cooler. A programmable controller combining digital analogue control techniques this project. experimental...

In this paper, a second-order asynchronous delta-sigma modulator (ADSM) is proposed based on the active-RCintegrators. The ADSM implemented in 0.18 μ m CMOS Logic or Mixed-Signal/RF, General Purpose process from Taiwan Semiconductor Manufacturing Company with center frequency of 848 kHz at supply voltage 1 V 92 dB peak signal-to-noise and distortion ratio ( S N D R ), which corresponds to 15 bit resolution. These parameters were achieved all endogenous bioelectric signals bandwidth 10 kHz....

This paper presents a system architecture for sensor signal digitization utilizing band-pass sigma-delta modulator (BP ΣΔM). The first version of the proposed was implemented in 5V 0.7µm CMOS technology. is useful our capacitive pressure measurement. describes possibilities using enhanced impedance spectroscopy and BP ΣΔM well suited wireless applications. shows another way how to use its advantages.

Abstract Nowadays, the technology advancements of signal processing, low-voltage low-power circuits and miniaturized have enabled design compact, battery-powered, high performance solutions for a wide range of, particularly, biomedical applications. Novel sensors human signals are creating new opportunities low weight wearable devices which allow continuous monitoring together with freedom movement users. This paper presents implementation novel sensor in integrated circuit (IC) form...

The paper deals with a design of the 16-bit MASH Delta-sigma (ΔΣ) converter utilizing switched capacitor technique (SC). attention was paid to reach 16bit ENOB resolution even same precision STF in band. This requirement is crucial evaluation signal amplitude independently on its frequency. Multistage structure two second order CIDIDF modulator used. system consists continuous time amplifier, and decimation digital filter. ONSemi I3T25 350nm CMOS technology used for design. value SNDR =...

This work presents results of a total ionising dose experiment, during which p-channel RADFETs were irradiated and measured under different gate bias conditions using an in-situ technique. The measurement system allowed threshold voltage shifts temperature sensitivity the shift to be irradiation 60 krad(Si) subsequent 55 day period annealing. experimental obtained allow improved insight into related problems RADFET based dosimetry systems for space terrestrial applications. show that...

A novel solution of the first-order asynchronous delta–sigma modulator (ADSM) is proposed. The circuit designed for commercial temperature range (0 °C to 70 °C) in a 28 nm fully depleted silicon on insulator (FD-SOI) technology from STMicroelectronics. This allows designing new subcircuit topologies, resulting an ADSM that offers 64.2 dB signal-to-noise and distortion ratio (SNDR) corresponding 10.37-bit resolution signal bandwidth 10 kHz. consumes 4.1 μW at power supply 1 V, obtained...

This work presents results of a total ionising dose experiment, during which commercial voltage references were irradiated and measured under different bias conditions using an in-situ technique. The measurement system allowed various electrical parameters the to be irradiation 100 krad(Si) subsequent 50 day period annealing. experimental obtained allow improved insight into induced degradation data acquisition systems for space terrestrial applications. show that selected can used...

The paper deals with bandpass sigma-delta modulator (BP SDM), which is used for conversion of signal from capacitive pressure sensor. This approach absolutely new and unique, because this kind modulators utilized only wireless video applications. main advantage BP SDM due to its defined band. That why it resistant against offsets subcuircits. Another important low power consumption, since the digitizes narrow band instead whole Nyquist similar dynamic range. shows basic ideas simulation...

A novel active resistor circuit offering less sensitivity to process and temperature variations without any extra trimming is proposed. The consists of two accurately matched, high resistance polysilicon (hripoly) resistors a voltage-controlled MOS resistor, it designed for the industrial range (-20 °C 85 °C) in TSMC 180 nm general-purpose process. actual performance analyzed by using Corner Monte Carlo analyses that comprise thousand samples global local variations. maximum error value ±6.2...

The paper deals with a design of the 12-bit sigma delta (ΣΔ) modulator using switched capacitor technique (SC). It is part system for vibration sensor output processing. Processing consists pre-amplifier, delta-sigma and decimation digital filter. Detailed description process ΣΔ described in article. starts by parameter requirements determination, continuing structure proposal, method coefficients selection, selecting compensation methods concluding on chip. ONSemi I2T100 700 nm CMOS...

The article deals with a custom based integrated measurement unit (IMU), which serves as processing device for MEMS pressure measurement. IMU consists of the three elementar stages, stage, stage and communication stage. They are implemented on one single board. block has 16-bit resolution 64 provided ranges to satisfy appropriate accuracy. power supply is 5 V, allows measure current 238 nA step within 1 mA range. upon 12C standard.

this work presents results of a total ionising dose experiment, during which commercial voltage references were irradiated and measured under different bias conditions using an in-situ technique. The automated test system allowed the output to be at various temperatures irradiation 100 krad(Si) subsequent 7 day period annealing. experimental obtained allow improved insight into induced degradation data acquisition systems for space applications. show that temperature coefficient selected...

The harmonic signal generator utilizing sigma-delta modulation for capacitive pressure sensor measurement was designed in AMIS CMOS 0.7 mum technology. Harmonic is one of the important parts complex system measurement. Whole based on bandpass (BP) Sigma-Delta modulation. Phasing and digital sampling main requirement proper function BP modulator. using VHDL. Synthesis synchronization accomplished Cadence BuildGates implemented Silicon Ensemble.

This paper describes the design of proposed capacity to digital converter. Some important simulations converter's behavior are presented as well. For value processing second order delta-sigma modulator with input adjusting circuitry was used. The switched current (SI) technique used in proposal. It brings small dimensions chip and easy integration into circuitry.

The paper deals with new background calibration technique, which is utilized in 10-bit low power pipelined ADC. switched-capacitor approach used designed ADC as well. Since portable applications demand for consumption, it one of the most important issues considered design. A modified operational-amplifier (op-amp) sharing technique was to decrease usage well capacitor scaling approach. To avoid clock feedthrough from digital part through switches, fully differential circuitry utilized....