Chopper-Stabilized Instrumentation Amplifier with Automatic Frequency Tuning Loop
نویسندگان
چکیده
منابع مشابه
A 0.06mm2 14nV/√Hz chopper instrumentation amplifier with automatic differential-pair matching
A small-area low-power low-noise instrumentation amplifier (IA) is desired in arrayed sensor devices that are used for high-spatial-resolution biomedical and environment monitoring systems. This paper presents a 0.06mm chopper-stabilized current-feedback IA with 13.5nV/√Hz input-referred noise and less than 3.5μV offset voltage. For significantly reducing the ripple due to chopping, the propose...
متن کاملA chopper current-feedback instrumentation amplifier with a 1mHz 1/ƒ noise corner and an AC-coupled ripple-reduction loop
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 noise corner was achieved at an input-referred noise power spectral density (PSD) of 15 nV/ Hz. ...
متن کاملChopper Stabilized Low Resistance Comparator
The paper describes an improvement of the chopper method for elimination of parasitic voltages in a low resistance comparison and measurement procedure. The basic circuit diagram along with a short description of the working principle are presented and the appropriate low resistance comparator prototype was designed and realized. Preliminary examinations confirm the possibility of measuring ext...
متن کاملA current noise reduction technique in chopper instrumentation amplifier for high-impedance sensors
A current noise reduction technique in chopper instrumentation amplifier (CIA) for high-impedance sensor is presented. The proposed technique is based on a time gating method to reduce time varying shot noise which is induced by channel charge injection of chopper switch transistors. An implemented CIA with the proposed time gating technique achieves more than 80-% noise reduction capability.
متن کاملCancellation of Amplifier Offset and 1/f Noise: An Improved Chopper Stabilized Technique
In this brief, a theoretical analysis on the limits of conventional chopper stabilization technique is presented and a solution conceived to improve the amplifier performance is proposed. The expected replicas of the 1 noise at the chopping frequency and its multiples are attenuated by a modified chopping control. Simulations done by using records of real 1 noise outputs showed that, by followi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Micromachines
سال: 2018
ISSN: 2072-666X
DOI: 10.3390/mi9060289