The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2013
Filed:
Oct. 05, 2009
Berry Anthony Johannus Buter, Veldhoven, NL;
Hans Van DE Vel, Geel, BE;
Berry Anthony Johannus Buter, Veldhoven, NL;
Hans Van de Vel, Geel, BE;
Integrated Device Technology, Inc., San Jose, CA (US);
Abstract
A circuit for an N-bit stage () of a pipeline ADC having L=2levels, the circuit comprising: an operational amplifier (); a first feedback capacitor (C) having a first plate connected to an input of the operational amplifier and a second plate switchably connected on a first clock signal (φ) to a first input voltage (±V) and on a second clock signal (φ) to an output of the operational amplifier; a second feedback capacitor (C) having a first plate connected to the input of the operational amplifier and a second plate switchably connected on the first clock signal to a discharge connection and on the second clock signal (φ) to an output of the operational amplifier; and a plurality of K sampling capacitors (C), each sampling capacitor having a first plate connected on the first clock signal to the input of the operational amplifier and a second plate switchably connected on the first clock signal to a second input voltage (V) and on the second clock signal to one of a positive and negative reference voltage (+V, −V) dependent on a quantized value of an analog input signal (Vm).