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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Some black magick trick.

I’ve been really surprised how stable its voltage is for an unheated style of Vref. Did you miss your activation email? PCB is on the table aka. I’ve had a raw LM hanging on magnet wire from a HP power supply for about a month now — just swinging in the air over my lm3399.

I hate how the LM’s datasheet shows the example circuits in reverse to how the die is wired.

A 10V buffered reference application is shown below. I’m not saying we should kill all stupid people. It’s a better way to create a constant current as stable as the LM it is powering. Transit times from these sites may vary. It looks like it forms a voltage divider with the k resistor, but I cannot figure out why they have that in there? The voltage 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 An R2 of 6.


Sample availability may be better than production availability. Rather, I’ll achieve trim by adjusting the current driven through the LM zener. I came across an interesting current source in the LM datasheet: If I’m remembering correctly, the LM has a negative tempco. Worst-case the K provides 55uA at 18V in whereas the 5K resistor provides uA so the line regulation is improved by more than I am using a double walled glass teacup I purchased in China.

Also, please note the warehouse location for the product ordered. Genius is one percent inspiration, ninety-nine percent perspiration Thomas Alva Edison It’s a bootstrapped bias circuit.

I fear I’ll be justifying upgrading to a used A all too soon The package for this IC i. Can you explain “start-up the device” a little bit more? May 13, We do take orders for items that are not in stock, so delivery may be scheduled at a future date.

LM Datasheet(PDF) – Linear Technology

Please consult the datasheet for more information. Tony EE rocketscientist 62k 2 21 It is important to note the scheduled dock date on the order entry screen.


The specific part is obsolete and no longer available. However, I realized having the datahseet sense resistor on the low side would introduce current error one way or another. Product Categories Analog Functions. At least one model within this product family is in production and available for purchase.

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Search Results for LM399 : 3 documents found

Pin Count Pin Count is the number of pins, balls, or pads on the device. This means I can immerse the entire circuit in an oil bath and not have to crack it open while calibrating to tweak a pot, etc. Uh oh, 10 minutes at the breadboard and I’m officially addicted to volt-nutting.

Why is there an extra resistor on the opamp in the LM datasheet? This is the acceptable operating range of the device.