dB - Linear V - I Converter Using Composite NMOS Transistor
نویسندگان
چکیده
A new CMOS exponential V-I converter (EVIC), based on Taylor’s concept and using NMOS transistor, is presented in this paper. The proposedmodified Taylor series expansion is used to extend the dBlinear output current range. In a 0.25 pm CMOS process, the simulations show more than 22 dB output current range and 17 dB linear range with the linearity error less than f 0.5 dB. The p&er dissipation is less than 0.3 mW with f 1.5 V supply voltage. The proposed EVIC can be used for the design of an extremely lowvoltage and low-power variable gain amplifier (VGA) and automatic gain control (AGC). Index terms -dBLinear, exponential function, Converter, VCA, and AGC.
منابع مشابه
Ultra Low-Voltage and Low-Power dB-Linear V-I Converter Using Composite NMOS Transistors
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