22-bit dual-Input Inductive Encoder Interface IC
MLX90520
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.
Top features
- Synchronized dual input channel readout
- 22-bit resolution with on‐chip Vernier angle calculation
-
High accuracy
-
maximum error +/-0.36 °electrical for each inductive channel
-
- Immune to magnetic stray fields (ISO 11452‐8)
- 16‐point programmable linearization characteristic per input channel
- < 1 µs latency thanks to on‐chip propagation delay compensation
- On‐chip signal processing for enhanced accuracy and excellent dynamic behavior
- Output interface SPI or SSI with wide frame content flexibility
- Ambient Operating Temperature Range from ‐40 °C to 125 °C
- Package RoHS Compliant TSSOP‐16 (GO)
- Facilitates compliance with safety standards up to SIL 2
22-bit dual-Input Inductive Encoder Interface IC - MLX90520
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:
- High resolution rotary sensor
- High resolution linear sensor
Features and benefits
- Synchronized dual input channel readout
- 22-bit resolution with on‐chip Vernier angle calculation
-
High accuracy
-
maximum error +/-0.36 °electrical for each inductive channel
-
- Immune to magnetic stray fields (ISO 11452‐8)
- 16‐point programmable linearization characteristic per input channel
- < 1 µs latency thanks to on‐chip propagation delay compensation
- On‐chip signal processing for enhanced accuracy and excellent dynamic behavior
- Output interface SPI or SSI with wide frame content flexibility
- Ambient Operating Temperature Range from ‐40 °C to 125 °C
- Package RoHS Compliant TSSOP‐16 (GO)
- Facilitates compliance with safety standards up to SIL 2
Documents and tools
Application flyer(s)
Datasheet(s)
Selection guide(s)
IC handling and assembly
Related tech talks
Videos
MLX90520 22-bit dual-input inductive encoder
Discover this novel inductive encoder with a resolution up to 22-bit. Supporting high-speed and high-resolution, it is well-suited for demanding robotics and industrial applications.
