Nxp B.v.

Linhao Cao

Jie Jin

Yizhong Zhang

Yikun Mo

Hongyan Yao

Sitong Wang

A self-calibrated buffered-voltage DAC includes a DAC configured to receive an input digital signal and output a first analog voltage signal, a buffer amplifier configured to receive the first voltage signal from the DAC and provide a buffered second analog voltage signal, a voltage to frequency converter configured to selectively receive the first and second voltage signals and provide first and second output signals at respective first and second frequencies, a counter configured to receive the output signals from the voltage to frequency converter and provide respective first and second digital output signals corresponding to the respective first and second frequencies, a comparator configured to receive the first and second digital output signals and provide a digital calibration offset, and a DAC error code module configured to receive a digital input code and the digital calibration offset and to provide an offset corrected input digital signal to the DAC.

Growing community of inventors

Suzhou, China

Linhao Cao