High precision 16 bit absolute angle measurement with CONNTEK KTH7812 X N SOP8 Hall magnetic encoder

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Product Description

KTH7812 16-bit High-Precision Low-Latency Hall Magnetic Encoder

The KTH7812 is a high-precision absolute angle Hall sensor chip offering up to 16-bit resolution for absolute angle output. It enables contactless magnetic field angle measurement in both on-axis and off-axis scenarios. With an ultra-low latency of data updates every 1s, it accurately outputs angle information across a wide speed range (0-120,000rpm), making it suitable for applications requiring precise angle measurement and speed control. The KTH7812 provides flexible output modes including programmable ABZ quadrature pulse output (up to 4096 steps/revolution) and programmable UVW incremental output (1-8 pole pairs). It also supports SPI communication for angle reading, register read/write, and features built-in magnetic field strength detection with programmable thresholds for monitoring and alarm functions. The integrated MTP (Multiple Time Programmable) memory stores key configuration parameters like zero angle position, ABZ encoder settings, and magnetic field detection thresholds for flexible configuration.

Product Attributes

  • Brand: KTH
  • Model: KTH7812
  • Type: Hall Magnetic Encoder
  • Output Modes: Programmable ABZ and UVW
  • Resolution: 16-bit absolute angle, up to 4096 steps/revolution (ABZ)
  • Latency: 1s data update
  • Communication Interface: SPI
  • Memory: Integrated MTP (Multiple Time Programmable)
  • Features: Magnetic field strength detection/alarm, zero point setting, rotation direction setting, off-axis calibration
  • Operating Voltage: 3.3V and 5V compatible
  • Operating Temperature: -40C to 125C
  • Package Options: QFN-16L, SOP-8

Technical Specifications

Parameter Description Min Typ. Max Unit Notes
Electrical Characteristics (@3.3V) Working Voltage 3.0 3.3 3.6 V
Working Current 11.6 mA
Electrical Characteristics (@5V) Working Voltage 4.5 5 5.5 V
Working Current 13.6 mA
Performance Magnetic Field Strength 30 60 150 mT
Performance Startup Time 1 ms
Performance Latency Time 1 us
Performance Output Noise (1 sigma) 0.015
Performance Temperature Drift 0.002 /C
Performance Non-linearity Error (INL) 0.35
Performance Max Speed 120000 rpm
Protection ESD (HBM) 5 KV
Magnet Mounting Radial Magnet Diameter (Dmag) 10 30 mm On-axis & Off-axis
Magnet Mounting Recommended Magnet Thickness (Tmag) 2.5 5 mm On-axis & Off-axis
Magnet Mounting Air Gap (AG) 1.0 5.0 mm On-axis
Magnet Mounting Air Gap (AG) 0.5 5 mm Off-axis
Magnet Mounting Multi-pole Magnet Pole Pitch (Wmag) 2 10 mm Multi-pole
SPI Timing SCK Clock Period (TSCK) 100 ns Min
SPI Timing SCK Low Period (TSCKL) 50 ns Min
SPI Timing SCK High Period (TSCKH) 50 ns Min

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Changsha Purple Horn E-Commerce Co., Ltd.
Location 2332 Kaibin Commercial Plaza, No. 419 Shaoshan Middle Road, Shazitang Street, Yuhua District, Changsha City, Hunan Province
Contact Person Coral

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