Patent ID: 9246507
Filing Date: 2016-01-26
CPC Classification: H03M

Claim Text:
1. An analogue to digital conversion device comprising: an analogue to digital conversion section comprising a plurality of analogue to digital conversion units (TADi, i=1, 2, . . . m), each of the analogue to digital conversion units (TADi) comprising a pulse delay circuit, each of the pulse delay circuits comprising a plurality of delay units (NAND, INV) connected in a daisy chain, wherein each of the delay units delays a pulse signal by a delay time which corresponds to an input voltage (Vin), and the analogue to digital conversion section counts the number of pulse signals which have passed through the delay units during a period counted from a timing when a start signal is switched to an activation state from a non-activation level to a timing when a sampling signal is received, where each of m timing signals CKi (i=1, 2, . . . , m) has a same specific period and two successive timing signals CKi have a different phase shifted by 1/m of the specific period to each other, and each of the analogue to digital conversion units (TADi) receives the timing signal CK