LM3915 www.
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com SNVS740C – JANUARY 2000 – REVISED MARCH 2013 LM3915 Dot/Bar Display Driver Check for Samples: LM3915 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, Open Collectors • Directly Drives TTL or CMOS • The Internal 10-step Divider is Floating and can be Referenced to a Wide Range of Voltages The LM39...

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