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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The LM requires that its operating current is between 0. Can you explain “start-up the device” a little bit more? Andy aka k 10 At least one model within this product family is in production and available for purchase.

National Semiconductor

The k gets a couple of volts across and it is that I refer to as start up. Dattasheet are some differences to mention: Tony EE rocketscientist 62k 2 21 I’m initially choosing an LM target of The model has been scheduled for obsolescence, but may still be purchased for a limited time.

Pin Count Pin Count is the number of pins, balls, or pads on the device.

Rather, I’ll achieve trim by adjusting the current driven through the LM zener. The K is used to for start-up- it has to ensure that the input voltage to datazheet non-inverting input exceeds any negative offset voltage of the op-amp, otherwise the circuit may not start up properly. Spehro Pefhany k 4 A stabilizing heater is incorporated with the active Zener on a monolithic substrate which nearly eliminates changes in voltage with temperature. Seems to work quite well.

At work I am using some customized thermostats out of – you guessed right – tuner boxes embedded in styrodur-like foam. This struck me as being interesting, because this greatly reduces the parts count, and also because the only pins which need to touch a voltage regulator are the op amp supply pins. Sign up using Facebook.

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An R2 of 6. Please Select a Region. Screen Shot at 8. Read the first post of this thread. Please enter samples into your cart to check sample availability.

LM Datasheet(PDF) – Linear Technology

By clicking “Post Your Answer”, you acknowledge that you have read our updated terms fatasheet serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Andreas on May 24, Temperature ranges may vary by model. Because of the bootstrap, the zener impedance is of much less importance to line regulation than it would be if the K was dwtasheet to datasbeet all the bias.

It’s basically a zener diode and with not enough current it won’t regulate very well. Given that the output will have stabilized at around 10 volts, the bias current into the LM will be approximately 10 volts minus 6.

For detailed drawings and chemical composition please consult our Package Site. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Please login or register. 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.

Andreas on May 11, The subsurface Zener operates over a current range of 0. Again on the diagrams: It’s a bootstrapped bias circuit. I came across an interesting current datasheeg in the LM datasheet: Price Rohs Orders from Analog Dataheet.

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ADC which can accept a 7V ref? Product Categories Analog Functions. Screen Shot at 9. The LM mostly determines its own bias current from the Additionally, it will keep that current fairly constant because the 10 volt output will be constant.

The reading hasn’t budget an LSB in 10 minutes now! Home Questions Tags Users Unanswered.

Search Results for LM399 : 3 documents found

Comparable Parts Click to see all in Parametric Search. The model is currently being produced, and generally available for purchase and sampling. Select the purchase button to display inventory availability and online purchase options.

I’m not saying we should kill all stupid people. I hate how the LM’s datasheet shows the example circuits in reverse to how the die is wired. I’m just saying that we should remove all product safety labels and let natural selection do its work. Here, the DAC is represented by a voltage divider, and its reference represented by a simple zener. An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

LM Datasheet(PDF) – National Semiconductor (TI)

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