LM are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for LM LM LM – Precision Reference, Package: TO, Pin Nb=4. The LM series are precision, temperature-stabilized monolithic zeners offering. Title, > 5V. Description, Precision Reference. Company, Linear Technology Corporation. Datasheet, Download LM datasheet. Quote. Find where to buy.

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One could top it off with a Petri dish? The model has been scheduled for obsolescence, but may still be purchased for a limited time. I’m just saying that we should remove all product safety labels and let natural selection do its work.

Model Package Pins Temp. At work I am using some customized thermostats out of – you guessed right – tuner boxes embedded in styrodur-like foam. Sign up using Facebook.

By using our site, you acknowledge that datassheet have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. This circuit seems to work, but I do admit I’m having a hard time convincing myself that it wouldn’t suffer from start-up problems what would prevent the op amp from just staying at 0V?


The k gets a couple of volts across and it is that I refer to as start up. Seems to work quite well. Once an order has been placed, Analog Devices, Inc.

Due to environmental concerns, ADI offers many of our products in lead-free versions. Post as a guest Name. With best regards Andreas. Spehro Pefhany k 4 Please Select a Region.

National Semiconductor

Pin Count Pin Count is the number of pins, balls, or pads on the device. So I tried wrapping my brain around making a high-side current source, and this is what I came up with: Read the first post of this thread.

Please Select a Language. Given that the output will have stabilized at around 10 volts, the bias current into the LM will be approximately 10 volts minus 6.

Search Results for LM399 : 3 documents found

Uh oh, 10 minutes at the breadboard and I’m officially addicted to volt-nutting. An R2 of 6. There are some differences to mention: My first attempts were a traditional op-amp with current sense resistor on the low side. The subsurface Zener operates over a current range of 0.

LM Datasheet(PDF) – National Semiconductor (TI)

I’ve really enjoyed these volt-nut threads and though I’m a newb, I’ve started down my own path of designing an LM reference. This struck me as being interesting, because this greatly reduces the parts count, and also daatasheet the only pins which need to touch a voltage regulator are the op amp supply pins.


The model is currently being produced, and generally available for purchase and sampling. So, the first step down this path is coming up with a current source. I fear I’ll dstasheet justifying upgrading to a used A all too soon Please login or register.

I’m not saying we should kill all stupid people. Test setup is the same as datasehet post. CaptnYellowShirt on May 13, The Sample button will be displayed if a model is available for web samples.

The LM requires that its operating current is between 0. The datasheet may not be very accurate during start up but it will be a few volts and the op-amp will produce some amplification and then deliver enough current through the 5 kohm to properly bias the LM