I need the data sheet. 3914 is ALL I have for info.

 

hi
d/s link
E
https://www.ti.com/lit/ds/symlink/lm3914.pdf

 

Thank you ericgibbs

 

There are a few on the surplus market, but you can make one out of ten comparators (two and a half LM339s) and 11 resistors, and it will probably turn out cheaper.

It’s ironic that That’s how it was done before National invented the LM3914, and now it’s been discontinued so we are back to the LM339 and resistors.

 

I bought 30 knockoffs on AliExpress a couple years ago for less than $0.20 each. I tested 100% of them for functionality in bar mode, but not accuracy.

 

hi BJ,
Amazon link.
E
https://www.amazon.co.uk/s?k=lm3914...m3914,aps,231&ref=nb_sb_ss_mvt-t11-ranker_2_6

 

Link won't open for me. Get an error message. Maybe I can't open a UK link ? ? ?

 

Hi BJ,
This is a clip for reference
E

a

 

There are a few on the surplus market, but you can make one out of ten comparators (two and a half LM339s) and 11 resistors, and it will probably turn out cheaper.

It’s ironic that That’s how it was done before National invented the LM3914, and now it’s been discontinued so we are back to the LM339 and resistors.

That's a good point. It's interesting how older solutions often become relevant again when dedicated ICs are discontinued. Sometimes the classic approach is still the most practical.

 

Digi-Key shows the surface mount version out of stock, but available.

The 3914 is a linear display driver. That is, the voltage increment for each display step is the same. This makes the 3914 relatively easy to emulate with more discrete components. Not true for the 3915 and 3916, which have two different logarithmic displays.

ak

 

Here is one that works in the US.
https://www.amazon.com/s?k=lm3914&crid=2CTX56DWIZGCT&sprefix=lm391,aps,566

 

Jameco also has them at a higher price.
https://www.jameco.com/z/LM3914N-1-...Dot-Bar-Display-Driver-10-Segment_300003.html

 

Thank you all. I just discovered I omitted a word in the title 'AT". I'm looking AT an IC marked 3914. I wanted to see a data sheet on the device. Thank you again, I have what I wanted.

 

any MCU will have ADC and handful of pins to drive LEDs. and you can have many modes that old analog ICs couldn't dream of.