The LM is a monolithic integrated circuit that. 2• Fast Responding Electronic VU Meter senses analog voltage levels and drives ten LEDs,. • Drivers LEDs. LM Dot/Bar Display Driver. General Description. The LM is a monolithic integrated circuit that senses analog voltage levels and drives ten LEDs. Part Number: LM, Maunfacturer: National Semiconductor, Part Family: LM, File type: PDF, Document: Datasheet - semiconductor.
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lm - Download as PDF File .pdf), Text File .txt) or read online. Dot/Bar Display Driver, LM datasheet, LM circuit, LM data sheet: NSC, alldatasheet, datasheet, Datasheet search site for Electronic Components. LM Dot/Bar Display Driver, LM datasheet, LM circuit, LM data sheet: TI1, alldatasheet, datasheet, Datasheet search site for Electronic.
.The meter requires only one resistor in addition to the ten LEDs. These high-impedance ends should be bypassed to pin 2 with 0. The input Buffer drives 10 individual Comparators referenced to the precision divider.
A simple, low cost approach is to set the reference voltage of the two chips 16 dB apart as in Figure 5. Best results are obtained if the circuit is rents flowing out of the ground pin cause voltage drops in adjusted for the correct output when a low-level AC signal external wiring, and thus errors and oscillations.
The high-impedance input Expandable to displays of 70 dB buffer accepts signals down to ground and up to within 1.
One more resistor programs the full-scale anywhere from 1. Audio applications include average or peak level indicators, and power meters.
Half-Wave Peak Detector one or both ends of the internal voltage divider terminated at relatively high value resistors.