公开(公告)号：US06239733B1

公开(公告)日：2001-05-29

申请号：US09322503

申请日：1999-05-28

Applicant: Chung-Ming Lin

Inventor： Chung-Ming Lin

IPC: H03M136

CPC classification number: H03M1/204 ,  H03M1/365

Abstract: A current interpolation circuit for use in an A/D converter is disclosed. The current interpolation circuit comprises current division circuits or current mirror circuits. Several reference voltages are converted into positive currents and negative currents by some folding amplifiers. Then the positive currents and the negative currents are fed to the current division circuits or the current mirror circuits, generating some positive currents and negative currents. Finally, a number of current comparators are configured to receive the generated positive currents and negative currents to produce differential voltage signals which are then used as interpolated levels.

Abstract translation: 公开了一种用于A / D转换器的电流内插电路。 当前的内插电路包括分流电路或电流镜电路。 几个参考电压由一些折叠放大器转换成正电流和负电流。 然后将正电流和负电流馈送到电流分流电路或电流镜电路，产生一些正电流和负电流。 最后，许多电流比较器配置成接收产生的正电流和负电流，以产生差分电压信号，然后将其用作内插电平。