Sujet : Re: Datasheet help
De : pcdhSpamMeSenseless (at) *nospam* electrooptical.net (Phil Hobbs)
Groupes : sci.electronics.designDate : 01. Dec 2024, 20:19:31
Autres entêtes
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John R Walliker <
jrwalliker@gmail.com> wrote:
On 01/12/2024 15:46, Jeroen Belleman wrote:
On 12/1/24 16:11, Cursitor Doom wrote:
Hi all,
I cannot see any reference to input impedance on this datasheet. I'd have
thought it was a key parameter!
https://disk.yandex.com/i/kWf8paLDWKn5rg
(The link shows the LM124/LM324 datasheet. You could have
told us up front.)
Not really.
If it's important to you, choose one that has that spec.
Jeroen Belleman
The data sheet is from 1995, so whatever you can buy now will be
slightly different. You do get the input bias current and input
offset current, so you can derive something useful from that.
The TI data sheet gives more information for the LM324B:
ZID Differential 10M� || 0.1pF
ZICM Common-mode 4G� || 1.5p
John
The 324B is a somewhat different part.
Cheers
Phil Hobbs
-- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC /Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics 
Datasheet help
Re: Datasheet help