Abstract
In low power-supply voltage systems, the method converting the input voltage signals into current signals by a resistor is useful in case that the amplitude of input voltage signals is larger than the supply voltage. This paper proposes a variable gain current amplifier as a current mode processing interface. The proposed circuit uses MOSFETs operated in the triode region to obtain a controllable current gain. High linearity is achieved by fixing the drain-to-source voltage of the MOSFETs. The proposed circuit is simulated by HSpice to confirm its performance.
| Original language | English |
|---|---|
| Pages (from-to) | 1511-1517+10 |
| Journal | IEEJ Transactions on Electronics, Information and Systems |
| Volume | 129 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2009 |
Keywords
- Current amplifier
- Low power-supply voltage
- Triode region
- Voltage-regulated
ASJC Scopus subject areas
- Electrical and Electronic Engineering
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Cite this
Retdian, N., Zhang, J., Sato, T., & Takagi, S. (2009). Low-voltage variable gain current amplifier for high-voltage signal processing. IEEJ Transactions on Electronics, Information and Systems, 129(8), 1511-1517+10. https://doi.org/10.1541/ieejeiss.129.1511