Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: Bill Sloman <bill.sloman@ieee.org>
Newsgroups: sci.electronics.design
Subject: Re: Absurd offset voltage spread
Date: Sun, 25 Aug 2024 13:50:52 +1000
Organization: A noiseless patient Spider
Lines: 21
Message-ID: <vae9ms$1oafp$1@dont-email.me>
References: <MjeyIsWQiboTrBlJXkiLlOaIMilRjtJV@bonus.frugalusenet.com>
 <rl9kcjh9isklnhuutqlqclnq6qrbvlju98@4ax.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Injection-Date: Sun, 25 Aug 2024 05:50:53 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="64a44ad2ca09c9e6a6878b3666759570";
	logging-data="1845753"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/HOUJ/NdeFpSnIa2crRk4GQVcZdN6eQb0="
User-Agent: Mozilla Thunderbird
Cancel-Lock: sha1:f0Z0Rl4jRpD6gPTjg28yoDd0m0k=
X-Antivirus: Norton (VPS 240824-4, 24/8/2024), Outbound message
Content-Language: en-US
In-Reply-To: <rl9kcjh9isklnhuutqlqclnq6qrbvlju98@4ax.com>
X-Antivirus-Status: Clean
Bytes: 1745

On 25/08/2024 4:38 am, john larkin wrote:
> On Sat, 24 Aug 24 16:57:45 UTC, bitrex <user@example.net> wrote:
> 
>> <https://www.mouser.com/ProductDetail/Texas-Instruments/OPA4991>
>>
>> Typ: 125uV, max 925uV
>>
>> Get outta here! They're just gaming the search results IMO
> 
> That is a gigantic offset for a modern opamp.
> 
> It's noisy too.

There are lots of different "modern" ops amps, optimised for lots of 
different jobs. The OPA4991 has lots of unique advantages, but low 
offset and low noise aren't any of them.

-- 
Bill Sloman, Sydney