Microchip LX34070 & LX34211 Inductive Position Sensors
Providing accurate measurements and immunity to potential disruptions
Microchip’s LX34070 & LX34211 Inductive Position Sensors offer significant advantages over existing Hall effect and other magnetic sensors. The sensor interface ICs measure linear and angular/rotation movement found in a variety of automotive, industrial, aerospace and commercial applications.
Recommended in automotive applications such as automobile throttle body, transmission gear sensing, electronic power steering and accelerator pedals, the LX34070 & LX34211 are also excellent solutions for other high-reliability and safety-critical industrial applications.
These unique magnetic field sensors give accurate position measurements, are immune to stray magnetic fields and don’t require an external magnetic device. AEC-Q100 Grade 1 (−45 to +125 °C) and Grade 0 (−45 to +150 °C) certified and ISO 26262 compliant solutions are available.
Summary of Features
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LX34070
The LX34070 is an inductive position sensor IC for high-speed and noise-immune automotive and industrial applications and extremely flexible for other applications.
The two output signals that represent the absolute position can be configured as single ended for reduced pin count or differential to maximize noise immunity in remote applications.
The LX34070 uses PCB traces to both generate A magnetic excitation signal and detect the presence of metal targets positioned within the generated magnetic field. The advantage of this is a magnetic field sensor that does not require magnets, delivers higher accuracy and is extremely immune to stray magnetic fields.
LX34211
The LX34211 is a highly accurate inductive position sensor interface IC with features that simplify the sensor design for a wide range of applications. This IC has more automatic gain control (AGC) in and a dynamic calibration algorithm that makes it easier to design accurate sensors with larger air gap and more mechanical tolerances with less current.
The LX34211 includes an integrated oscillator circuit for driving the primary coil of an inductive sensor, along with two independent analog conversion paths for conditioning, converting, and processing of sine and cosine analog signals from the secondary coils of the sensor. The output signal is an DAC analog or PWM signal that represents the position with 12 bit measurement range resolution.
LX34211 Evaluation Board
Part number: EV86J15A
You can get your sensor prototyping going with the LX34211 360-degree rotary EVB through Microchip’s inductive sensor programmer (LXM9518) with your own computer and IPCE software to auto recognize your device. With the hardware and software, you can evaluate, auto-calibrate, and customize this sensor to your end application’s needs.
