The LM3915 Audio Level Indicator is a versatile and reliable component designed for driving visual displays like LEDs, LCDs, or vacuum fluorescents. With a 3 dB/step display over a 30 dB range, this indicator can be set to bar or dot modes by the user and expanded to handle displays up to 90 dB. Its internal voltage reference ranges from 1.2V to 12V, and it operates with a single power supply from 3V to 25V, making it suitable for various applications in Bangladesh.
Product Details
- 3 dB/step, 30 dB range
- Drives LEDs, LCDs, or vacuum fluorescents
- Bar or dot display mode selectable by user
- Expandable to displays of 90 dB
- Internal voltage reference: 1.2V to 12V
- Single supply operation: 3V to 25V
- Inputs operate down to ground
- Output current programmable: 1 mA to 30 mA
- Withstands ±35V input without damage
- Current regulated, open collectors
- Drives TTL or CMOS directly
- Floating 10-step divider, wide voltage reference range
Use of the Product
This indicator is ideal for audio level metering and other applications requiring visual displays of signal levels. Its ability to drive various types of displays and support different modes makes it a flexible choice for electronics enthusiasts and professionals alike.
Benefits of the Product
- Accurate 3 dB/step level indication
- Versatile display driving capabilities
- Expandable to handle higher dB ranges
- Easy to integrate with single supply operation
- Wide voltage reference range for flexibility
Frequently Asked Questions
Q: What types of displays can the LM3915 drive?
A: It can drive LEDs, LCDs, and vacuum fluorescent displays.
Q: Can the display mode be changed?
A: Yes, you can select between bar or dot display modes.
Q: What is the operating voltage range?
A: It operates with a single supply voltage ranging from 3V to 25V.
Tips for Use
- Ensure proper integration with your circuit design
- Regularly check for firmware updates
- Utilize the programmable output current feature for customization
- Store in a safe place when not in use to avoid damage
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What is the latest and best price of LM3915 in Bangladesh (BD) ?
The latest and special price of LM3915 in Bangladesh is BDT 46 Taka. Buy best quality LM3915 from
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