Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: A method to generate stable transconductance (g/sub m/) without using precise external components is presented. The off-chip resistor in a conventional constant-g/sub m/ bias circuit is replaced with a variable on-chip resistor. A MOSFET biased in triode region is used as a variable resistor. The resistance of the MOSFET is tuned by a background tuning scheme to achieve the stable transconductance that is immune to process, voltage and temperature variation. The transconductance generated by the constant-g/sub m/ bias circuit designed in 0.18/spl mu/m CMOS process with 1.5F supply displays less than 1% variation for a 20% change in por supply voltage and less than /spl plusmn/1.5% variation for a 60/spl deg/C change in temperature. The whole circuit draws approximately 850/spl mu/A from a supply.
['Nema Talebbeydokhti', 'Pavan Kumar Hanumolu', 'Peter Kurahashi', 'Un-Ku Moon']
I am writing a research paper on a idea Constant transconductance bias circuit with an on-chip resistor
[{"from": "human", "value": "I am writing a research paper on a idea Constant transconductance bias circuit with an on-chip resistor"}, {"from": "gpt", "value": "Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: A method to generate stable transconductance (g/sub m/) without using precise external components is presented. The off-chip resistor in a conventional constant-g/sub m/ bias circuit is replaced with a variable on-chip resistor. A MOSFET biased in triode region is used as a variable resistor. The resistance of the MOSFET is tuned by a background tuning scheme to achieve the stable transconductance that is immune to process, voltage and temperature variation. The transconductance generated by the constant-g/sub m/ bias circuit designed in 0.18/spl mu/m CMOS process with 1.5F supply displays less than 1% variation for a 20% change in por supply voltage and less than /spl plusmn/1.5% variation for a 60/spl deg/C change in temperature. The whole circuit draws approximately 850/spl mu/A from a supply."}]