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Sender: "piclist-bounces@mit.edu" Date: Mon, 25 Oct 2021 12:59:23 -0700 Subject: Re: [EE] Where to get a uCurrent or tinyCurrent, Low Current Measurement Shunt and Amplifier? Thread-Topic: [EE] Where to get a uCurrent or tinyCurrent, Low Current Measurement Shunt and Amplifier? Thread-Index: AdfJ3zQrgY8T9oAlSr+QxOQuFpGdpw== Message-ID: References: List-Help: List-Subscribe: , List-Unsubscribe: , In-Reply-To: Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US 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: Pass (protection.outlook.com: domain of gmail.com designates 209.85.214.172 as permitted sender) receiver=protection.outlook.com; client-ip=209.85.214.172; helo=mail-pl1-f172.google.com; dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=DADwF5Nzdeq/gct0Z/M/U7Bi0xd7nWCtsfSJ//hEhNY=; b=QDdH+kIukJ3F4u0jilmSaYZCpztQD4uwVCA6JXhi7kFIEs+RS88NgcrYQyqi+RNQ1e yGAH1S2Ebxocs8X1/hi76fTaXSn71FMUhxPMZS6kN6NcD28HGPpLjQqQhiifHgg9/h+1 IvgXr5t61fo5VblTmoK2aIsA2ilR9XeS0t8F5FBCOqo0u2aMV7ogZtjr2nXHZLY0cnZP OZD6g3M5PFMZ6MqgUSBzQxv1juGzAvNeC+627q8KrnYuLMSoV4vwr7HC0kY6qXxI18Z8 NJLAhepVsqgPrw+J5ccShMUHKMiU31KzvJARPua3hoIJEWO1iqP35WXS77gatkZCwqLb KRhQ== authentication-results: spf=pass (sender IP is 209.85.214.172) smtp.mailfrom=gmail.com; mit.edu; dkim=pass (signature was verified) header.d=gmail.com; mit.edu; dmarc=pass action=none header.from=gmail.com; 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-received: by 2002:a17:90b:30d8:: with SMTP id hi24mr14488020pjb.60.1635191999500; Mon, 25 Oct 2021 12:59:59 -0700 (PDT) x-topics: [EE] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Although I am not entirely happy with the looks of it, particularly the battery setup (not coin cell - apparently one must provide their own lithium poly battery), I did find reference to one active product called the "currentranger" [1]. It is some sort of uCurrent derivative that is microcontroller based. [1] https://lowpowerlab.com/guide/currentranger/ On Mon, Oct 25, 2021 at 3:46 PM Jason White wrote: > > Hi everyone, > > I am in a situation where I need to measure a time varying current > that ranges from 5uA to 15mA with a bandwidth of roughly 100kHz (50 > microsecond rectangular current pulses). > > The application is accurately characterizing the power consumption of > a "black box" using an oscilloscope. > > I was thinking of using a uCurrent (from EEVblog) or a tinyCurrent (a > clone of the uCurrent which has a BNC output). But, I can't buy either > since they are out of stock! > > Does anyone know where I could get a device like the uCurrent / > tinyCurrent ? I would prefer to buy one over building one. > > -- > Jason White --=20 Jason White --=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 .