LM3914 Datasheet - National Semiconductor

LM3914, Dot/Bar Display Driver

LM3914 Dot/Bar Display Driver January 2000 LM3914 Dot/Bar Display Driver General .
The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display.

Features

* n n n n n n n n n n Drives LEDs, LCDs or vacuum fluorescents Bar or dot display mode externally selectable by user Expandable to displays of 100 steps Internal voltage reference from 1.2V to 12V Operates with single supply of less than 3V Inputs operate down to ground Output current programmable fro

Applications

* 0V to 5V Bar Graph Meter DS007970-1 Note: Grounding method is typical of all uses. The 2.2 µF tantalum or 10 µF aluminum electrolytic capacitor is needed if leads to the LED supply are 6" or longer. www. national. com 2 LM3914 Absolute Maximum Ratings (Note 1) If Military/Aerospace specified dev

LM3914_NationalSemiconductor.pdf