HP an 346-4 free download

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Hints for Successful Impedance Measurements Application Note 346-4 How to evaluate electronic devices used in circuits in order to achieve design performance. 1 Impedance Measurements for Engineers Impedance is measured using a broadest frequency range (5Hz to variety of techniques. The 110GHz). This technique delivers advantages of each technique exceptional accuracy near 50 or depend on test frequency, the 75, depending on the system. impedance to be measured, as well as preferred display parameters. LCR Meters and Impedance Analyzers are differentiated The Auto Balancing Bridge primarily by display properties. technique is exceptionally An LCR Meter displays numeric accurate over a broad impedance data, while an Impedance Analyzer range (m to the order of 100M). can display data in either numeric The frequency range this or graphic format. The techniques technique can be applied to is from employed by these instrument a few Hz to 110MHz. types are independent of analyzer type, and can be RF-IV, IV or Auto The IV and RF-IV techniques are Balancing Bridge (depending on also very accurate over a broad frequency). impedance range (m to M). The frequency range this technique can Engineers perform impedance be applied to is from 40Hz to measurements for a variety of 1.8GHz. reasons. In a typical application, an electronic device used in a The Transmission/Reflection designed circuit is characterized. technique is applied over the Normally, a manufacturer states only the nominal value of the electronic device. Engineering concerns as well as production, procurement and