TY - JOUR ID - 72098 TI - A Novel Low Voltage, Low Power and High Gain Operational Amplifier Using Negative Resistance and Self Cascode Transistors JO - International Journal of Engineering JA - IJE LA - en SN - 1025-2495 AU - MiarNaimi, H. AU - Fallah, Mohammad AD - Computer & Electrical Engineering, Babol Noshiravani University of Technology AD - Electerical Engineering, Noshirvani University of Technology, Babol Y1 - 2013 PY - 2013 VL - 26 IS - 3 SP - 303 EP - 308 KW - Negative Resistance KW - Op Amp KW - Self Cascode Transistors DO - N2 - In this work a low power, low voltage and high gain operational amplifier is proposed. For this purpose a negative resistance structure is used in parallel with output to improve the achievable gain. Because of using self cascode transistors in the output, the proposed structure remains approximately constant in a relatively large output voltage swing causing an invariable gain. To evaluate the proposed method an op amp was designed in 0.18μm CMOS technology. The simulation  results showed a gain of 84dB, unity gain bandwidth of 12.45MHz and phase margin of 81 degree; with 1V power supply and 1pF load capacitor. UR - https://www.ije.ir/article_72098.html L1 - https://www.ije.ir/article_72098_a3fc2754aace3ecbdc4aaeb27d0d3cb9.pdf ER -