Electronically tunable current-mode instrumentation amplifier with high CMRR and wide bandwidth |
| |
| Affiliation: | 1. Electronic Information School of Wuhan University, Wuhan 430072, China;2. Shenzhen Institute of Wuhan University, Shenzhen 518057, China;3. The 28th Research Institute of China Electronics Technology Group Corporation, Nanjing 210007, China;1. Electrical Engineering Department, Khaje Nasir Toosi University, Tehran, Iran;2. Electrical Engineering Department, Shahid Beheshti University, Tehran, Iran;3. School of New Technologies, Iran University of Science and Tech., Tehran, Iran;4. Electrical and Electronics Engineering Department, University of Qom, Qom, Iran;1. Dept. of Electrical and Electronics Engineering, Bandirma Onyedi Eylul University, Balikesir, Turkey;2. Dept. of Electrical and Electronics Engineering, Erzincan Binali Yildirim University, Erzincan, Turkey;3. Dept. of Electrical and Electronics Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey;1. Department of Electrical and Computer Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran;2. Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran |
| |
| Abstract: | A current-mode instrumentation amplifier consists of only two current follower differential input transconductance amplifiers is proposed in this paper. The proposed circuit of instrumentation amplifier is realized without using any passive components. Thus, the proposed circuit structure is very simple and suitable to the integrated circuit technology. The input impedance is low and output impedance is high, therefore the proposed circuit is easily cascadable. The gain of the proposed instrumentation amplifier is electronically controllable. The proposed circuit also enjoys the features of high common mode rejection ratio, wide bandwidth and low power consumption. Additionally, performance of the proposed circuit is tested under process, supply voltage and temperature variations. Furthermore, another circuit of instrumentation amplifier, which is capable of providing higher differential mode gain is also shown. The non-ideal and parasitic studies are included. HSPICE simulations are performed to validate the proposed circuits of instrumentation amplifier. |
| |
| Keywords: | CFDITA Current-mode Electronic control Instrumentation amplifier |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
