MagnTek | Novosense – MT6835: 21-Bit High-Accuracy Magnetic Angle Encoder IC a solution for high-speed and high-precision applications

MagnTek | Novosense - MT6835

MagnTek|Novosense – MT6835 21-Bit rotary encoder: Do you need precise angle measurements at a full turn?

If your application requires high-speed and high-precision control, the MT6835 magnetic angle encoder IC could be the ideal solution.

Searching for the right rotary encoder solution? Send us your request directly!

MagnTek | Novosense – MT6835 21-Bit rotary encoder at a glance

The MT6835 is a rotary position sensor IC based on advanced Anisotropic Magnetoresistive (AMR) technology.

It operates by detecting a rotating magnetic field in the X-Y sensor plane, producing two sinusoidal output signals that allow for the calculation of the absolute angle between the sensor and the magnetic field direction.

The MT6835 consists of a pair of AMR Wheatstone bridges, a signal processing ASIC circuit and it supports independent output interfaces including ABZ (ABI), UVW, PWM, and SPI. Some other remarkable features include:

High Speed Rotation

21-bit core resolution with a maximum rotation speed of up to 120,000 RPM

High Resolution & Fast Output – Optical Encoder Replacement

Supports incremental ABZ output with up to 16,384 pulses (65,536 steps) per revolution. Ideal for replacing optical encoders

Calibration Capabilities

Features automatic self-calibration at constant speed, correcting magnet and alignment errors without data interaction, reducing INL (Integral Non-Linearity) to ±0.07°, or down to ±0.02° using NLC (Non-Linearity Compensation) mode

Digital Interface

4-wire SPI interface for a host MCU to read digital absolute angle information from internal registers and to program the EEPROM

Stray Field Immunity & Mechanic Tolerance

Sensitive only to the magnetic field direction in the X-Y plane, with output independent of field strength, minimizing the effects of stray fields, air gap variations, and misalignment

Temperature Compensation

Built-in temperature compensation that minimizes the angle accuracy drift and reduces system speed fluctuations caused by temperature variations

Applications

Here are some possible applications where the MT6835 might be a good fit:

Servo Motor Control
- 2,500–16,384 line servo applications
- 17-bit absolute value servo motor systems
Stepping Motor Control (closed loop)

Datasheet MT6835

BLDC Motor Control
Absolute Angle Position Sensor
Optical Encoder Replacement

About MagnTek | Now Part of Novosense

MagnTek | Now part of Novosense – is dedicated to advanced magnetic semiconductor sensing technology, with a strong focus on developing high-quality products such as magnetic angle encoder ICs, magnetic sensing components, and signal processing chips. With a commitment to precision and reliability, MagnTek serves industries like intelligent manufacturing, transportation, and smart homes. Recently, MagnTek joined forces with Suzhou Novosense Microelectronics Co., Ltd., strengthening its position in the industry.

If you’re interested in the MT6835 or any other MagnTek | Novosense component, please contact us directly or send us your request here. We will be happy to assist you with any inquiries and support you need

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