thumb|LM3914 driving an LED [[bargraph display]] thumb|LM3915 IC in Dual in-line package|DIP-18 package The LM3914 is an integrated circuit (IC), designed by National Semiconductor in the late 1970s, used to operate displays that visually show the magnitude of an analog signal. It can drive up to 10 LEDs, LCDs, or vacuum fluorescent displays on its outputs. The linear scaling of the output thresholds makes the device usable, for example, as a voltmeter. In the basic configuration it provides a ten step scale which is expandable to over 100 segments with other LM3914 ICs in series.
thumb|LM3914 driving an LED [[bargraph display]] thumb|LM3915 IC in Dual in-line package|DIP-18 package The LM3914 is an integrated circuit (IC), designed by National Semiconductor in the late 1970s, used to operate displays that visually show the magnitude of an analog signal. It can drive up to 10 LEDs, LCDs, or vacuum fluorescent displays on its outputs. The linear scaling of the output thresholds makes the device usable, for example, as a voltmeter. In the basic configuration it provides a ten step scale which is expandable to over 100 segments with other LM3914 ICs in series.
==Features== The LM3914 / LM3915 / LM3916 are identical except for the ten resistor divider inside each part. LM3914 – linear steps, scaled by a resistor divider consisting of ten 1000 ohm resistors. LM3915 – 3dB logarithmic steps, scaled by a resistor divider consisting of 6630, 4690, 3310, 2340, 1660, 1170, 830, 590, 410, 1000 ohm resistors. LM3916 – VU-meter steps, scaled by a resistor divider consisting of 1087, 970, 864, 769, 1298, 1031, 819, 923, 1531, 708 ohm resistors.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).