一种超低功耗跨导运算放大器的设计

Scientific Publications of the State University of Novi Pazar Series A: Applied Mathematics, Informatics and mechanics Pub Date : 1900-01-01 DOI:10.5937/SPSUNP1901033J

G. Jovanovic, M. Stojcev, S. Vučković

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引用次数: 1

摘要

本文介绍了一种超低功耗、低电压跨导运算放大器的设计。两级OTA采用0.13 μ m SiGe BiCMOS技术实现。OTA工作时，所有晶体管都在亚阈值区域活动。在典型工作条件下，电路供电电压为0.5 V，供电电流为150 nA，功耗为75 nW。低频增益为53 dB，增益带宽积(GBW)为350 kHz，相位裕度为55°。-1 dB增益压缩点为-7.4 dBm，输出截距点(OIP3)为-21.5 dBm。OTA布局有源芯片面积为0.0014 mm2。

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A design of an ultra low-power operational transconductance amplifier

This paper describes a design of an ultra low-power, low-voltage operational transconductance amplifier (OTA). A two stage OTA is implemented in 0.13 μ m SiGe BiCMOS technology. The OTA operates with all transistors active in subthreshold region. Under the typical operating conditions, circuit supply voltage is 0.5 V, supply current 150 nA and power consumption is 75 nW. Low-frequency gain is 53 dB, gain-bandwidth product (GBW) 350 kHz and phase margin 55°. -1 dB gain compression point is -7.4 dBm and output intercept point (OIP3) -21.5 dBm. OTA layout active chip area is 0.0014 mm2.

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Scientific Publications of the State University of Novi Pazar Series A: Applied Mathematics, Informatics and mechanics

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