LMN Datasheet: LMN / DIP 8 Pin / Low Voltage Audio Power Amplifier, LMN PDF Download FCISemiconductor, LMN Datasheet PDF, Pinouts. These are the first monolithic JFET input operational ampli- fiers to incorporate well matched, high voltage JFETs on the same chip with standard bipolar. LFN/NOPB Texas Instruments Operational Amplifiers – Op Amps JFET INPUT OP AMP datasheet, inventory, & pricing.

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Depending on the value of the sense resistor there is a chance that the opamp output might not be able to swing low enough to drive Q1 correctly.

By that logic my base current, 3. Hopefully, I was clear in my explanation. Your name or email address: Quote of the day. Dec 28, 8. Hope this helped, Kevin. Why does your schematic drawing software produce backwards negative white lines on a black background instead of a normal positive image??

Also can’t you turn off the “chicken pox” dots?? With that information I assumed I would reference the 3rd entry for the behavior I could expect. In this case, something in the 1K to 10K range might help, but I wouldn’t put it in until needed. Dec 27, 2.


LMN Datasheet, PDF – Alldatasheet

Delete R1 for now. You only need 4mA, so beta isn’t a critical parameter. Lastly, I’ve heard it is poor practice to use an op-amp as a comparator without some sort of hysteresis. I’d like to make a few comments: Use a ohm resistor for Rsense and set the voltage divider to give you 0. Beta is also dependent on Vce.

lmn Datasheet PDF, lmn

Dec 20, 10, 1, Yes, my password is: AC gain confusion Posted by vustudent in forum: You can omit the base resistor. The second key to this circuit is that the transistor emitter current equals to the collector current.

Its purpose is to protect Q1 from too much base dafasheet, which is not a problem in this circuit. Most importantly, the opamp gain at DC is around , so that additional 70 doesn’t really figure into the gain equations.

Stock/Availability for: LM356N

Dec 27, 3. My Rationale Using the datasheet, to the best of my ability, it looks like my DC current gain would be Dec 28, 4.


I am trying to setup a constant current source using a 2n and a Motorolla LMN. The output voltage is only guaranteed to be 3. What exactly am I screwing up here?

If you have 3. Dc gain Posted by Yuvaloh1 in forum: How I see it if I’m fully on, what would my collector current be?

Mar 14, 20, 5, Sep 20, You May Also Like: I know I may have to implement some hysteresis into this circuit. Datasueet have several problems. I want to ensure 4mA collector current regardless of my load. Dec 29, That will also help with the max output voltage.