LM1819 Datasheet (National Semiconductor)

LM1819, Air-Core Meter Driver

The LM1819 is a function generator driver for air-core (moving-magnet) meter movements A Norton amplifier and an NPN transistor are included on chip for signal conditioning as required Driver outputs are self-centering and develop g 4 5V swing at 20 mA Better than 2% linearity is guaranteed over a f

LM1819 Features

* Y Y Y Y Self-centering 20 mA outputs 12V operation Norton amplifier Function generator Applications Y Y Y Air-core meter driver Tachometers Ruggedized instruments Typical Application www.DataSheet.net/ TL H 5263

* 1 FIGURE 1 Automotive Tachometer Application Circuit shown operates wit