LH0045C Datasheet | National Semiconductor

Description The LH0045 LH0045C Two Wire Transmitters are linear integrated circuits designed to convert the voltage from a sensor to a current and send it through to a receiver utilizing the same simple twisted pair as the supply voltage The LH0045 and LH0045C contain an internal reference designed to power the sensor bridge a sensitive input amplifier and an output current source The output current scale can be adjusted to match the industry standards of 4 0 m A to 20 m A or 10 m A to 50 m A Designed for use with various sensors the LH0045 LH0045C will interface with thermocouples strain gauges or thermistors The use of the power supply leads as the signal output eliminates two or three extra wires in remote signal applications Also current output minimizes susceptibility to voltage noise spikes and eliminates line drop problems The LH0045 LH0045C is intended to fulfill a wide variety of...