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A novel voltage-to-current (V-I) converter with high linearity and wide tuning range was designed. The V-I converter consist of differential amplifier, voltage attenuator, source follower, and adaptive current mirror. The simulation result shows that the V-I converter has tuning range from 0.2V to supply voltage of 3.0V. The nonlinearity error of the V-I converter was less than 0.5% for the same range...
CMOS under-voltage lockout (UVLO) circuit configured Schmitt trigger was fabricated and tested. The UVLO circuit consist of current source inverter, Schmitt trigger, delay circuit, and waveform shaper of the output. The tested result shows that the UVLO has size of die was 136 μm × 85 μm, turn on and off voltage was at 1.85V and 1.70V, respectively. The fabrication process was Magna/Hynix CMOS 0.35...
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