Microchip Technology LX34070 Inductive Position Sensors

Microchip Technology LX34070 Inductive Position Sensors are analog front-end interface ICs that integrate an exciter circuit for controlling external LC oscillators. Here, the inductance (L) of the external tank circuit is the primary coil of an inductive sensor formed by wire traces on a printed circuit board (PCB). The signals generated from two magnetically coupled secondary coils are the analog position input signals to the LX34070 devices. The received signals that vary depending on the position of metallic targets are processed by the LX34070 sensors to extract the amplitudes from the high-frequency carrier.

Microchip Technology LX34070 Inductive Position Sensors are available in 14-pin TSSOP packages with AEC-Q100 certification to grade 0 exhibiting an extended -40°C to +150°C operating temperature range. This makes the sensors suitable for a wide range of commercial, industrial, medical, and automotive sensors, and high-speed and noise-immune applications.

Features

AEC-Q100 Grade 0 certification
ISO26262 ASIL C(D) SEOOC compliant
Built-in oscillator for driving the primary coil
Two independent analog channels with demodulation
4.5V to 5.5V input range with protection up to 18V
Calibration through V_IN or GPIO

Differential output buffers with accurate common-mode levels and protection circuitry against output shorts
Detection of faults at the exciter coil pins and receive coil pins
Detection of loss of power supply and ground
-40°C to +150°C operating temperature range