Patent ID: 7106237
Filing Date: 2006-09-12
Classification: H03M

Abstract:
1. An analog-digital converter of the SAR type, comprising: switched-capacitor quantization means having an input for receiving an analog quantity to be converted; a register having an output for providing a digital quantity corresponding to the analog quantity; a timing pulse generator configured to generate timing pulses; and a logic unit connected to the quantization means, the register, and the timing pulse generator, and adapted to respond to a conversion request signal by activating the quantization means so that the logic unit will carry out predetermined operations timed by the timing pulses and load in the register the digital quantity to be furnished as output, the logic unit identifying, through successive attempts, bit values of the digital quantity corresponding to the analog quantity, the logic unit producing regulation signals that are received by the timing pulse generator, the timing pulse generator having a regulation circuit capable of modifying the timing pulses in response to the regulation signals produced by the logic unit to increase a duration of a half-period of the timing pulses that precede identifying the bit values.