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LM3915

Part Number	LM3915
Manufacturer	National Semiconductor
Description	Dot/Bar Display Driver
Published	Mar 22, 2005
Detailed Description	LM3915 Dot/Bar Display Driver January 2000 LM3915 Dot/Bar Display Driver General Description The LM3915 is a monolithi...
Datasheet	LM3915 PDF File

Overview

LM3915 Dot/Bar Display Driver January 2000 LM3915 Dot/Bar Display Driver General Description The LM3915 is a monolithic integrated circuit that senses analog voltage levels and drives ten LEDs, LCDs or vacuum fluorescent displays, providing a logarithmic 3 dB/step analog display.
One pin changes the display from a bar graph to a moving dot display.
LED current drive is regulated and programmable, eliminating the need for current limiting resistors.
The whole display system can operate from a single supply as low as 3V or as high as 25V.
The IC contains an adjustable voltage reference and an accurate ten-step voltage divider.
The high-impedance input buffer accepts signals down to ground an...

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