Searched for: subject:"Chopping"
(1 - 5 of 5)
document
Chaturvedi, V. (author), Vogel, J.G. (author), Makinwa, K.A.A. (author), Nihtianov, S. (author)
This paper presents an eddy-current sensor (ECS) interface intended for sub-nanometer (sub-nm) displacement sensing in hi-tech applications. The interface employs a 126-MHz excitation frequency to mitigate the skin effect, and achieve high resolution and stability. An efficient on-chip sensor offset compensation scheme is introduced which...
journal article 2018
document
Jiang, H. (author), Ligouras, C. (author), Nihtianov, S. (author), Makinwa, K.A.A. (author)
When chopping is applied to a continuous-time sigmadelta modulator (CTΣΔM), quantization noise fold-back often occurs, leading to increased in-band noise. This can be prevented by employing a return-to-zero (RZ) digital-to-analog converter (RZ DAC) in the modulator's feedback path and arranging the chopping transitions to coincide with its RZ...
journal article 2018
document
Wang, Guijie (author), Heidari, A. (author), Makinwa, K.A.A. (author), Meijer, G.C.M. (author)
This paper describes the design of a precision bipolar junction transistor based temperature sensor implemented in standard 0.7-μmCMOS technology. It employs substrate p-n-ps as sensing elements,which makes it insensitive<br/>to the effects of mechanical (packaging) stress and facilitates the use of low-cost packaging technologies. The sensor...
journal article 2017
document
Wu, R. (author), Chae, Y. (author), Huijsing, J.H. (author), Makinwa, K.A.A. (author)
This paper presents a 20-b read-out IC with ±40-mV full-scale range that is intended for use with bridge transducers. It consists of a current-feedback instrumentation amplifier (CFIA) followed by a switched-capacitor incremental ΔΣ ADC. The CFIA's offset and 1/ <i>f</i> noise are mitigated by chopping, while its gain accuracy and gain drift are...
journal article 2012
document
Wu, R. (author), Makinwa, K.A.A. (author), Huijsing, J.H. (author)
This paper presents a chopper instrumentation amplifier for interfacing precision thermistor bridges. For high CMRR and DC gain, the amplifier employs a three-stage current-feedback topology with nested-Miller compensation. By chopping both the input and intermediate stages of the amplifier, a 1 mHz 1/f noise corner was achieved at an input...
journal article 2009
Searched for: subject:"Chopping"
(1 - 5 of 5)