Current mode instrumentation amplifier with CDCCC
| Autor: | Sajal K. Paul, Rupam Das |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Current-feedback operational amplifier
Differential gain Computer science 020208 electrical & electronic engineering 020206 networking & telecommunications 02 engineering and technology Dissipation Surfaces Coatings and Films law.invention High impedance Hardware and Architecture law Signal Processing Current conveyor 0202 electrical engineering electronic engineering information engineering Electronic engineering Instrumentation amplifier Current (fluid) Resistor |
| Zdroj: | Analog Integrated Circuits and Signal Processing. 108:455-468 |
| ISSN: | 1573-1979 0925-1030 |
| Popis: | In this paper, a new current-mode instrumentation amplifier is presented using a single current differencing current controlled current conveyor building block and one grounded resistor. The proposed instrumentation amplifier (IA) can easily be cascaded due to the possession of low impedance current input, and high impedance current output. It offers a high differential gain (73.35 dB) and high bandwidth (BW), 44.8 MHz. Moreover, the common-mode rejection ratio (CMRR) is also very high (93.58 dB), and CMRR BW 5.5 kHz. Power dissipation is found to be low at 132 µW. Furthermore, the electronic tuning of gain is the added feature of the circuit. The non-ideality performance of IA is investigated. The proposed IA functionality is verified through the Cadence ORCAD PSPICE simulator using 0.18 µm TSMC (Level 7) technology parameters. The circuit's workability has also been presented experimentally using commercially available current feedback operational amplifier ICs AD844. Comparison of the performances such as differential gain, BW, CMRR, power consumption, and ease of cascading is reported. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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