Low-Voltage Low-Power CMOS Rail-to-Rail Voltage-to-Current Converters

  title={Low-Voltage Low-Power CMOS Rail-to-Rail Voltage-to-Current Converters},
  author={Cristina Azcona and Bel{\'e}n Calvo and Santiago Celma and Nicol{\'a}s J. Medrano-Marqu{\'e}s and Pedro A. Mart{\'i}nez},
  journal={IEEE Transactions on Circuits and Systems I: Regular Papers},
This paper presents three compact CMOS voltage-to-current converters based on OTA/common-source configurations, which attain rail-to-rail input-output operation. The three converters present a high impedance input node while provide a highly linear V-I relationship over a ( -40, +120°C) temperature range with a maximum transconductance temperature coefficient of 175 ppm/°C. Measurement results for 1.2-V 0.18- μm CMOS implementations confirm rail-to-rail operation with bandwidths of up to 14.5… CONTINUE READING
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