Morris Manning & Martin LLP
Self-calibrated current source and DAC using the same and operation method thereof
A background self-calibrated DAC is presented. A virtual-short theory, applicable to input/output terminals of an operational amplifier, is periodically employed so as to self-calibrate a current source serially connected with an equivalent resistor, and the DAC using the same. The DAC does not require an additional self-calibration period, and digital-to-analog conversion thereof can be realized in merely a small amount of die area. Correspondingly, a compact and high-speed current steering DAC can be realized.
Realtek Semiconductor Corp.
H H
H03M H03M
inventional additional
Chun-Ta Chuan-Ping
Ho Tu