Aufbau/internal: IC (__ Trans., __ Widerst., __ Dioden); Form/Case: TO-99 (LM131H) | DIP-8 (LM231/LM331) | SOP-14 (LM231WN); Typ/Content: Precision Voltage-to-Frequency Converter; Daten/electr.data: Vcc: 5 V, max. 40 V; Icc: 3...4 mA; Pd: 15 mW; f: 1 Hz...100 kHz; t op: -25...85 °C*; Variants: LM131/LM131A = -55...+125 °C*, LM231/LM231A = -25...+85 °C* (see above), LM331[N]/LM331A = 0...+70 °C*. Manufactured by National Semiconductor Corp. (USA) -