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:
Jan. 13, 2004
Filed:
Aug. 08, 2001
Robert John Brewer, Lambourn, GB;
Analog Devices, Inc., Norwood, MA (US);
Abstract
A multi-stage integrator achieves a relatively high small-signal gain, broad bandwidth, and very clean transient pulse response. Only simple inverters are used, making the design scalable to deep sub-micron with low supply voltages, a rail-to-rail output swing, and a relatively low output impedance and useful tolerance to capacitive loading. A high gain amplifier is coupled between an integrator input node and amplifier output node. A broadband transconductor is coupled between the integrator input node and integrator output node. A resistor connects the amplifier output node and the integrator output, while a capacitor is coupled from the integrator input to the amplifier output. The conductance of the resistor (the reciprocal of the resistance, or 1/R) is selected to be substantially equal to the transconductance g of the transconductor. A method for achieving clean transient pulse response is also described.