Microchip Technology

The LX3302A is a highly integrated programmable data conversion IC designed for interfacing to and managing of inductive position sensors. These sensors use printed circuit board (PCB) traces to accurately detect the location of the metal target and are immune to stray magnetics fields and eliminate the need of a magnet, required with other types of magnetic field based sensors. The device 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. Each path includes an EMI filter, demodulator, anti-alias filter, programmable amplifier, and a 13-bit sigma-delta analog-to-digital converter. The resulting output is an accurate 12-bit resolution signal that represent the movement of the metal target over the PCB based sensor. There's also an additional 10-bit ADC that makes temperature sensor and z-direction measurement options available. Each analog signal path includes digital calibration capability which allows the complete analog path (including the external sensors) to be calibrated during the system manufacturing process. The calibration information is written to an internal EEPROM resulting in improved production yields, and in-line system upgrades. The EEPROM is coupled with an internal 32-bit RISC processor to provide programmable advanced digital filtering, fault monitoring, and signal processing options to use the IC in wide range of applications. System output interfaces include a 16-bit PWM, a 12-bit digital-to-analog converter (DAC) in addition to a digital three wire SENT and a two wire current modulated PSI5 protocol. The LX3302A is offered in TSSOP14, the device is specified over a temperature range of -40°C to +150°C making it suitable for a wide range of commercial, industrial, medical, and/or automotive sensor applications. Download your first inductive Position sensor and get a head start on your design by visiting our [**Inductive Position Sensor Design Page**](https://www.microchip.com/en-us/products/sensors-and-motor-drive/inductive-position-sensors/getting-started-with-inductive-position-sensors). Combined with one of the position sensor designs on that page, the **LX3302AQPW-EASY** variant of the LX3302A will provide a true plug and play operation. Just solder the IC on the given layout and schematic, and moving the metal target will provide sensor information. No programming of the IC or reading of the datasheet is required! The below list of technical documents, software and reference designs are available upon request, for more information, please contact Dustin.Tenney@microchip.com or Mark.Smith@microchip.com. - LX3302A Datasheet - LX3302A Auto Calibration User Guide - IPCE Sensor Evaluation and Calibration Software Microchip can help with your own sensor design with its own unique mechanical constraints. You can start with [one of our Kits](https://www.microchip.com/design-centers/sensors/inductive-position-sensors/getting-started), but Microchip is ready to help you from day one. Talk with our sales team and describe your sensor requirement. We will work with you on getting a design up and running to take advantage of this advanced technology. Get started with your first design by ordering a [position sensor evaluation kit](https://www.microchip.com/design-centers/sensors/inductive-position-sensors/getting-started) for your first project. There are linear and rotational evaluation kits available. Each kits includes a Sensor evaluation board, a IPCE programmer, links to our IPCE software, and applicable cables. There are also separate evaluation boards and programmers available for orders.

The LX34050 is a integrated programmable data conversion IC designed for interfacing to and managing printed circuit board (PCB) based inductive position sensors. Inductive position sensors are ideal replacements for magnet based position and speed sensors (i.e Hall Effect Sensors), optical encoders, and Magnetic resolvers. They excel with improved accuracy, magnetic noise immunity and don't require a magnet as a target. The sensor itself is just a PCB, with primary and secondary windings placed to detect the movement of a metal target. The device 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 two analog signals from the secondary coils of the sensor. Each path includes an EMI filter, de-modulator,and programmable amplifier. Great for embedded applications, the LX34050 output interface include two single ended Sin(x) and Cos(x) signals that change as the metal target is moved over the sensor. The position of the target is then calculated by using the ratio of these signals. The propagation delay and bandwidth of the analog paths have been optimized for high speed automotive, industrial and medical sensor applications. The LX34050 is specified over a temperature range of -40°C to +150°C (Automotive Grade 0) and contains a 32-BIT Cortus APS1 MCU for fault detection and system monitoring. Get a head start on your design by visiting our [Inductive Position Sensor Design Page](https://www.microchip.com/design-centers/sensors/inductive-position-sensors/getting-started) Various technical documents, software(IPCE Sensor Evaluation and Calibration Software), and reference designs are available upon request, for more information, please contact your local Microchip sales representative. To request the LX34050 Datasheet, please contact Dustin.Tenney@microchip.com or Mark.Smith@microchip.com. Microchip can help with your own sensor design with its own unique mechanical constraints. You can start with one of our kits, but Microchip is ready to help you from day one. Talk with our sales team and describe your sensor requirement. We will work with you on getting a design up and running to take advantage of this advanced technology.

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 device 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. Each analog signal path includes adjustable AGC gain and digital calibration capability to match the mechanical system variation and maximize accuracy. The AGC unit has improved gain for an even wider range of target-to-sensor airgap applications. In addition, a unique dynamic calibration algorithm corrects for errors before the on board linearization stage, maintaining accuracy over a wider range of airgaps. The calibration information can be written to the internal nonvolatile EEPROM memory during end-of-line production resulting in improved production yields by compensating for a wider range of mechanical tolerances. The LX34211 is available in a 14-lead TSSOP package. The device is specified over a temperature range of -40°C to +125°C making it suitable for commercial, industrial, medical, and/or automotive sensor applications. The IC was developed using the ISO26262 standard to reach ASIL B levels as an SEooC. Redundant sensor system with two ICs can be used for ASIL-C and ASIL-D applications. Get a head start on your design by visiting our [Inductive Position Sensor Design Page](https://www.microchip.com/en-us/products/sensors-and-motor-drive/inductive-position-sensors/getting-started-with-inductive-position-sensors) The below list of technical documents, software and reference designs are available upon request, for more information, please contact Dustin.Tenney@microchip.com or Mark.Smith@microchip.com. - LX34211A Datasheet - IPCE Sensor Evaluation and Calibration Software Microchip can help with your own sensor design with its own unique mechanical constraints. You can start with one of our Kits, but Microchip is ready to help you from day one. Talk with our sales team and describe your sensor requirement. We will work with you on getting a design up and running to take advantage of this advanced technology. Get started with your first design by ordering a position sensor evaluation kit for your first project. There are linear and rotational evaluation kits available. Each kits includes a Sensor evaluation board, a IPCE programmer, links to our IPCE software, and applicable cables. There are also separate evaluation boards and programmers available for orders.