Received: from PCH.mit.edu (18.7.21.50) by mail.efplus.com (192.168.0.8) with Microsoft SMTP Server (TLS) id 8.3.485.1; Sat, 4 Sep 2021 04:39:30 -0700 Received: from PCH.MIT.EDU (localhost.localdomain [127.0.0.1]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 184BSMd5000790; Sat, 4 Sep 2021 07:29:27 -0400 Received: from outgoing-exchange-3.mit.edu (OUTGOING-EXCHANGE-3.MIT.EDU [18.9.28.13]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 184BSKYt000787 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Sat, 4 Sep 2021 07:28:21 -0400 Received: from w92exedge3.exchange.mit.edu (W92EXEDGE3.EXCHANGE.MIT.EDU [18.7.73.15]) by outgoing-exchange-3.mit.edu (8.14.7/8.12.4) with ESMTP id 184BSGwU021227 for ; Sat, 4 Sep 2021 07:28:20 -0400 Received: from w92expo11.exchange.mit.edu (18.7.74.65) by w92exedge3.exchange.mit.edu (18.7.73.15) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Sat, 4 Sep 2021 07:27:33 -0400 Received: from oc11exhyb3.exchange.mit.edu (18.9.1.99) by w92expo11.exchange.mit.edu (18.7.74.65) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Sat, 4 Sep 2021 07:27:25 -0400 Received: from NAM12-DM6-obe.outbound.protection.outlook.com (104.47.59.173) by oc11exhyb3.exchange.mit.edu (18.9.1.99) with Microsoft SMTP Server (TLS) id 15.0.1497.23 via Frontend Transport; Sat, 4 Sep 2021 07:27:25 -0400 Received: from MW4PR03CA0322.namprd03.prod.outlook.com (2603:10b6:303:dd::27) by SA0PR01MB6250.prod.exchangelabs.com (2603:10b6:806:ef::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4478.21; Sat, 4 Sep 2021 11:28:17 +0000 Received: from CO1NAM11FT012.eop-nam11.prod.protection.outlook.com (2603:10b6:303:dd:cafe::59) by MW4PR03CA0322.outlook.office365.com (2603:10b6:303:dd::27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4478.17 via Frontend Transport; Sat, 4 Sep 2021 11:28:17 +0000 Received: from chester.nocdirect.com (69.73.144.10) by CO1NAM11FT012.mail.protection.outlook.com (10.13.175.192) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4478.19 via Frontend Transport; Sat, 4 Sep 2021 11:28:16 +0000 Received: from 25.16.187.81.in-addr.arpa ([81.187.16.25]:54621 helo=[10.0.0.28]) by chester.nocdirect.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94.2) (envelope-from ) id 1mMToD-0005Ok-HT for piclist@mit.edu; Sat, 04 Sep 2021 07:26:07 -0400 From: John Lawton To: "piclist@mit.edu" Sender: "piclist-bounces@mit.edu" Date: Sat, 4 Sep 2021 04:26:06 -0700 Subject: Re: [EE] Looking for op-amp recommendations Thread-Topic: [EE] Looking for op-amp recommendations Thread-Index: AdehgYaSI88Zre2ORwmIVbdob09fLQ== Message-ID: <6de97f4a-7f8e-0772-5ccf-dfed2276e0a3@jle.co.uk> References: <61326986.1c69fb81.709cb.077c@mx.google.com> <3f024c9b-19a6-300d-b580-c3ee71a9547d@narwani.org> List-Help: List-Subscribe: , List-Unsubscribe: , In-Reply-To: Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US Content-Language: en-GB X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: Pass X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: None (protection.outlook.com: jle.co.uk does not designate permitted sender hosts) dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mitprod.onmicrosoft.com; s=selector2-mitprod-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=ydbE5/MY6nPXRYYQsOSSrj8Hr2xad3C4kgP41lAbpIo=; b=XCApQcaxG6SQMIKtjzhxal9gOxRRwa/ZUm08QGa+yDa3wX++KPGomsdUxEgv+siMR4p1OvLBHMbZA0CV4nWNBLf+HyKeQiDAenQf3jYC/7Simcn4zs0oSN7JwvoTnxOGTAnVtV/LS8uEdwV43RZvcj89MY3Cek5EXgJK7wyk9SU= authentication-results: spf=none (sender IP is 69.73.144.10) smtp.mailfrom=jle.co.uk; mit.edu; dkim=none (message not signed) header.d=none;mit.edu; dmarc=none action=none header.from=jle.co.uk; user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-source-args: x-source-dir: x-antiabuse: Sender Address Domain - jle.co.uk x-source: x-authenticated-sender: chester.nocdirect.com: piclist@jle.co.uk x-topics: [EE] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 I'm a fam of the OPA4191 which offers rail to rail I/O and wide supply=20 range. They are a mite expensive though. John On 03/09/2021 21:06, David VanHorn wrote: > And the crossover distortion is horrible on the 1/2/324 amps. A pullup o= n > the output will help, essentially making it class A. > > > On Fri, Sep 3, 2021 at 1:50 PM Neil wrote: > >> I've looked for the same thing a couple years ago and had found some >> decent youtube videos by TI and others. >> Unless it's for some specific instrumentation use, I usually just go dig >> through my samples/jellybean bin and check the datasheets of those. >> Usually end up with some MCP6xxx or INA part. >> FWIW, I'm always disappointed with the 741/324 for my purposes as it can >> be very far from rail-to-rail. >> >> Cheers, >> -Neil. >> >> >> >> On 9/3/2021 2:29 PM, Dwayne Reid wrote: >>> Good day to all. >>> >>> I'm starting a new project and am looking for an upgraded >>> LM324. That is: quad op-amp available in both DIP as well as SOIC >>> package, better input offset specs than the LM324, higher GBW than >>> the LM324. This will be operating from a 12 Vdc supply. >>> >>> There are tens of thousands of candidates available and I am asking >>> for help in narrowing that down to a few choices that I can examine in >> detail. >>> I can also use dual or even single op-amps but the quad fits the >>> project perfectly. >>> >>> I would ask on Electronics.Stack Exchange but I think that requests >>> for product recommendations are strictly verboten. >>> >>> Many thanks! >>> >>> dwayne >>> >> -- >> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .