Reply-To: "Kevin Aylward"
From: "Kevin Aylward"
Subject: Re: Wrestlemania Royale: Tantalum vs. Electrolytic Vs. Polys, etc.
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Date: Thu, 24 Oct 2002 07:27:27 +0100
NNTP-Posting-Date: Thu, 24 Oct 2002 07:27:35 BST
"Dan Charette" wrote in message
> Hey Folks!
> On the subject of capacitors in a nutshell, what are the main
> selection points why one would choose say an electrolytic over a
> tantalum? i.e. Aside from ESR criteria, in say a decoupling situation
> on the power supply pins of an op-amp, what would be the couple of
> reasons why one would choose electrolytic over tantalum or vice versa?
> And on that same note, say the same op-amp used in a simple amplifier
> scheme with a HF rejection cap across the feedback path, what would
> you choose there, polypropylene, polyester, ceramic, foil, etc. and
> why? And say in a digital scheme on the decoupling caps, what
> there... ceramic...metalized polyester film... etc.?
> While on the subject of caps, why not discuss resistors too. Metal
> oxide film, carbon film or carbon composition?
> Given an unlimited budget on a circuit design, what are the high
> performance materials in the way of capacitors and resistors that one
> would use in say an audio amplifier circuit or a high speed digital
> I say the most colorful components are the ones that are the most
> worthy of selection.
Cost, size, temperature and time stability, linearity, ESL, ESR,
Leakage, dielectric absorption...
SuperSpice, a very affordable Mixed-Mode
Windows Simulator with Schematic Capture,
Waveform Display, FFT's and Filter Design.