Title :
An efficient method to improve amplifier accuracy
Author :
Roman, Z. ; Zoltan, I.
Author_Institution :
Ritz Instrum. Transformers Inc., Augusta, GA, USA
Abstract :
The gain and phase error of amplifiers can be measured precisely and consequently reduced with at least one order of magnitude in the frequency range of 0…100 kHz. Better performance can be achieved in the 0…1 kHz range, where gain error can be reduced below 10 ppm. No precision component or instrument is needed. Implementation of the method is simple, inexpensive and suitable for industrial applications
Keywords :
calibration; gain measurement; instrumentation amplifiers; measurement errors; phase measurement; 0 to 100 kHz; amplifier accuracy improvement; error analysis; gain error measurement; industrial applications; phase error measurement; self-calibration; Frequency; Gain measurement; Instruments; Operational amplifiers; Performance gain; Phase measurement; Resistors; Switches; Uniform resource locators; Voltage;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.928241
