发明名称 |
DRIVING METHOD FOR OBTAINING A GAIN LINEAR VARIATION OF A TRANSCONDUCTANCE AMPLIFIER AND CORRESPONDING DRIVING CIRCUIT |
摘要 |
The disclosure relates to a driving method for obtaining a linear gain variation of a transconductance amplifier that includes a first differential transistor cell, with adjustment of a driving voltage value of a degenerative driving transistor of the transconductance amplifier The method includes generating an output current signal of a second differential cell corresponding to the first differential transistor cell of the transconductance amplifier, the output current signal having a linear relationship with a transconductance value of the second differential cell as the driving voltage varies; generating a reference current signal having a linear relationship with a differential input voltage; comparing the output current signal and the reference current signal for adjusting the driving voltage value; and modifying the transconductance value of the second differential cell up to a balance of the current signals. |
申请公布号 |
KR20120117808(A) |
申请公布日期 |
2012.10.24 |
申请号 |
KR20127017076 |
申请日期 |
2010.09.29 |
申请人 |
STMICROELECTRONICS S.R.L. |
发明人 |
ALBERTINI MATTEO;RONCHI DANIELE;ROSSI SANDRO;RICOTTI GIULIO |
分类号 |
H03F3/45;H03G1/00 |
主分类号 |
H03F3/45 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|