公开(公告)号：US20140247171A1

公开(公告)日：2014-09-04

申请号：US14194181

申请日：2014-02-28

Applicant: Texas Instruments Incorporated

Inventor： Janakiraman S. ,  Udayan Dasgupta ,  Ganesan Thiagarajan ,  Abhijit A. Patki ,  Madhulatha Bonu ,  Venugopal Gopinathan

IPC: H03M1/12 ,  H03M1/08

CPC classification number: H03M1/125 ,  H03M1/08 ,  H03M1/0836 ,  H03M1/0845 ,  H03M1/0854 ,  H03M1/089 ,  H03M1/124 ,  H03M1/1265 ,  H03M1/186 ,  H03M1/36

Abstract: A method, comprising: receiving an analog input; determining an upper outer rail and a lower outer rail as polling values to be used by voltage comparators; blanking at least three comparators; determining which two of the at least three comparators are closest to the input analog voltage levels; defining the two comparators which are closest to the analog input signal to be the next comparators of the next sampling process; assigning a remaining comparator at a voltage level in between the new top and bottom voltage levels; enabling the outer rails, but blanking the inner rail; progressively narrowing down the voltage range spanned by the two outer comparators; and generating a 2-tuple value of an asynchronous voltage comparator crossing.

Abstract translation: 一种方法，包括：接收模拟输入; 确定上部外轨道和下部外部轨道作为要由电压比较器使用的轮询值; 至少阻止三位比较人; 确定所述至少三个比较器中的哪两个最接近所述输入模拟电压电平; 将最接近模拟输入信号的两个比较器定义为下一个采样过程的下一个比较器; 将剩余比较器分配在新的顶部和底部电压电平之间的电压电平; 使得外轨能够消除内轨; 逐渐缩小两个外部比较器跨越的电压范围; 并产生异步电压比较器杂交的2元组值。