CONNTEK 3D Hall Sensor KTH5701AQ3DNE: A High-Precision, Low-Power Intelligent Magnetic Sensing Solution

The KTH5701AQ3DNE from CONNTEK is a high-performance 3D Hall sensor designed for modern electronic systems, specializing in high-precision magnetic field detection and angle measurement. This device can simultaneously sense the magnetic field strength along the X, Y, and Z axes. Leveraging advanced semiconductor processes and an optimized circuit architecture, it excels in sensitivity, accuracy, and anti-interference capability, enabling it to stably output highly reliable data even in the presence of weak magnetic field variations, thereby meeting the demands of various rigorous application scenarios.

The KTH5701AQ3DNE features a wide dynamic magnetic field measurement range, capable of accurately detecting three-axis magnetic fields and delivering high-precision angle output with an error not exceeding ±1° under typical operating conditions. The chip integrates a CORDIC algorithm to provide multi-plane angle data directly, effectively reducing the processing burden on the host microcontroller. It supports multiple low-power operating modes, with an idle current as low as 1.4µA, making it particularly suitable for portable or wearable devices sensitive to battery life.

The supply voltage range is 2.8V to 5.5V, and its VDDIO supports a wide logic level compatibility from 1.8V to VDD, facilitating interfacing with different host platforms. It provides both SPI and I²C communication interfaces. Housed in a compact QFN16 package, it operates over a temperature range of –40°C to +125°C, complies with automotive-grade standards, and is suitable for high-reliability scenarios such as automotive and industrial applications. The chip includes a built-in temperature sensor with automatic temperature compensation and features magnetic threshold wake-up and push-button detection functions. Key parameters such as oversampling rate, digital filter strength, and angle output plane can be flexibly configured via registers to meet diverse application needs.

With its innovative magnetic encoding technology, CONNTEK's KTH5701AQ3DNE effectively overcomes the limitations of traditional sensing solutions in terms of response speed, stability, cost, and power consumption across several key fields:

1. Automotive Electronics: Non-Contact Position Detection

In applications like air conditioning knobs and seat adjustment, traditional mechanical potentiometers are prone to wear, leading to degraded accuracy or failure. The KTH5701AQ3DNE employs a contactless magnetic sensing method, completely eliminating mechanical wear, significantly extending service life, and providing a smooth, precise user control experience.

2. Industrial Automation: Contamination-Resistant, Highly Reliable Sensing

In scenarios such as robotic arm joints and linear displacement detection, optical encoders are susceptible to interference from oil, grease, and dust. Based on magnetic field principles, the KTH5701AQ3DNE possesses inherent resistance to contamination, enabling stable operation in harsh industrial environments. Combined with its high resolution and low latency, it enhances production line positioning accuracy and efficiency.

3. Consumer Electronics: Low-Power Attitude Sensing

For portable devices like smartwatches, VR/AR headsets, and game controllers, the ultra-low 1.4µA standby current of the KTH5701AQ3DNE greatly extends battery life. Its contactless measurement mechanism ensures data continuity and accuracy even during vigorous movement, improving the naturalness of human-machine interaction.

4. Medical & Smart Home: High-Precision, Miniaturized Integration

In applications with dual demands for both miniaturization and precision, such as surgical robot end-effectors and smart locks, traditional solutions struggle to balance both. The KTH5701AQ3DNE achieves ±1° angular accuracy with temperature compensation within a compact 3x3mm package, meeting stringent space and performance requirements.

The CONNTEK KTH5701AQ3DNE is not merely a high-performance 3D Hall sensor; it is a sensor solution that integrates high precision, ultra-low power consumption, automotive-grade reliability, and intelligent algorithms. Through its innovative magnetic encoding architecture, it effectively addresses the pain points of traditional sensing technologies concerning lifespan, environmental adaptability, power consumption, and integration level. It brings significant technological upgrades to automotive electronics, industrial automation control, consumer electronics, wearables, and medical devices. As an indispensable 3D Hall sensor in future intelligent devices, the KTH5701AQ3DNE is propelling non-contact position and angle detection towards new heights of precision, reliability, and efficiency.

About Mandu Technology

Shenzhen Mandu Technology Co., Ltd. has steadfastly centered its operations on the distribution of high-performance, high-quality, and highly reliable integrated circuit products. Its portfolio encompasses memory chips, differential crystal oscillators, and MCU microcontrollers, while progressively integrating analog signal chain products. The company prides itself on delivering comprehensive and cost-effective solutions to its customers. Its products find applications across a broad spectrum of industries, including but not limited to network communication, industrial control, robotics, medical equipment, personal health, and numerous other fields.

Business: sales@manduic.com