MLX90520 - 22-bit dual-Input Inductive Encoder Interface IC
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.
MLX90520 - 22-bit dual-Input Inductive Encoder Interface IC
|
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. |
Features and benefits of MLX90520
- 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
Application examples:
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
Do you require a reliable sensor? Contact us – we will be happy to advise you:
DacomWest offers expert advice and fast delivery for Melexis sensor systems – tailored to your specific requirements.
