An 87% Power-Efficiency Hybrid of Voltage- and Current-Mode Line Driver with an Adaptive Amplitude Tuning

This brief presents a hybrid of voltage- and current-mode line drivers for the turbo controller area network (CAN). The scheme prevents signal attenuation caused by source termination resistors, it enhances power efficiency. On top that, an adaptive amplitude tuning is implemented to mitigate non-linearity closed-loop gain variations against load impedance variations. proposed driver achieves 87.0% power-efficiency total harmonic distortion, plus noise (THD+N) −49.0 dB at input frequency 40 MHz output swing 2.8 VPP differential. allows from 80 Ω 160 Ω. consumption 37.6 mW with 1.8 V supply voltage in 180 nm CMOS, occupies 0.377 mm2.