MLX90520KGO-AAA-000
The MLX90520 is a dual-input inductive encoder for absolute rotary or linear motion sensing. It is suitable for robotic & industrial applications where the simultaneous measurement of two positions is required. Designed as master/nonius, both inputs can detect an absolute position with high accuracy using the vernier principle.
Top features
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Synchronized dual input channel readout
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22-bit resolution with on‐chip Vernier angle calculation
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Height of the MLX90520 less than 3 mm (including IC, PCB, and target)
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High accuracy
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Immune to magnetic stray fields (ISO 11452-8)
Product description
The MLX90520 is a dual-input inductive position sensor used for absolute rotary or linear motion sensing. It is suitable for robotic and industrial applications where the simultaneous measurement of two positions is required. The position information derived from the two channels can be directly transferred to the output or used for the calculation of a high‐resolution Vernier angle.
The MLX90520 is designed to control an inductive sensor system formed by the transmitting coil, one or multiple targets and two sets of receiver coils, each composed of three receiver coils. The on‐chip LC oscillator generates an electromagnetic field together with the transmitting coil. This electromagnetic field induces, via the target(s), angle dependent voltages in the receiving coils. These signals are captured and processed by the MLX90520 internal DSP units according to the device configuration.
The MLX90520 offers multiple output modes. An SPI protocol allows fast protected data transfer and device programming. The SSI enables fast data output with a 2‐wire connection.
Application examples
- Contactless absolute rotary or linear position sensing
- High-resolution rotary sensor
- High-resolution linear sensor
- Robot, Cobot or Humanoid joint rotary position encoder
- Excavator hydraulic actuator linear position sensor
Features and benefits
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Synchronized dual input channel readout
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22-bit resolution with on‐chip Vernier angle calculation
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High accuracy
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maximum error ±0.36° electrical for each inductive channel
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Immune to magnetic stray fields (ISO 11452-8)
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16-point programmable linearization characteristic per input channel
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< 1 µs latency thanks to on‐chip propagation delay compensation
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On‐chip signal processing for enhanced accuracy and excellent dynamic behavior
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Output interface SPI or SSI with wide frame content flexibility
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Ambient Operating Temperature Range from ‐40°C to 125°C
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Package RoHS Compliant TSSOP‐16 (GO)
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Facilitates compliance with safety standards up to SIL 2
Documents and tools
Datasheet(s)
Application flyer(s)
Selection guide(s)
IC handling and assembly
If you have further questions please contact our team
Melexis Application flyer - Encoders and resolvers for robot joints
If you need further assistance please contact our team
Melexis Homepage: MLX90520 22-bit Dual-Input Inductive Encoder Interface IC 
Melexis News: MLX90520 High-Resolution 22-Bit Inductive Encoder Product Release Homepage (EN)
Melexis News: MLX90520 hochauflösender 22-Bit-Induktionsgeber (DE)
Melexis Applications: Humanoid robots
Melexis Applications: Service and wearable robot
Melexis Homepage: Inductive Position Sensing
Melexis Homepage: Inductive Position Sensor ICs Selection Tool
Melexis TechTalk: Key Technologies Enabling Automotive By-Wire Systems
Melexis TechTalk: Inductive resolver for e-motor, e-brake and e-steering
If you have further questions please contact our team.
Melexis MLX90520 22-bit Dual-Input Inductive Encoder Video
Unboxing the Inductive Position Sensing Demo.
Video about the inductive sensor interface IC MLX90510
Video of the inductive sensor demonstrator with the MLX90510
If you need further information on usage and coil- or pcb-design please contact our team
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