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.
Features
- 1.
- 2 3 dB/step, 30 dB Range.
- Drives LEDs, LCDs, or Vacuum Fluorescents.
- Bar or Dot Display Mode Externally Selectable
by User.
- Expandable to Displays of 90 dB.
- Internal Voltage Reference from 1.2V to 12V.
- Operates with Single Supply of 3V to 25V.
- Inputs Operate Down to Ground.
- Output Current Programmable from 1 mA to 30
mA.
- Input Withstands ±35V without Damage or
False Outputs.
- Outputs are Current Regulated,.
LM3915-etcTI.pdf
