Interleaved analog-to-digital converting and integrating circuit and telecommunication device comprising such a circuit

摘要

The invention relates to an integrator circuit (INT) including one or more integrating cells (ICL1...ICLP). The invention also relates to a telecommunication device comprising such a circuit. The integrator circuit (INT) according to the invention includes:
·means (CM) for comparing an output signal of a given integrating cell with a first reference signal (V1), a second reference signal (V2) being then applied at the input of said given integrating cell, and
·means (CNT) for counting pulses of a clock signal (Cks) as long as said given integrating cell's output signal exceeds the first reference signal (V1). By virtue of the invention, there is no physical seperation between integrating means and analog-to-digital converting means, such means being instead interleaved and interdependent, thus allowing to perform almost simultaneously the integration and the analog-to-digital conversion functions.