Magn Tek MT6701CT-STD

MT6701 is a next-generation angle position sensor IC based on the differential horizontal Hall magnetic sensing principle. The chip integrates two pairs of differential Hall Wheatstone bridges arranged at 90° to each other, capable of sensing the Z-axis magnetic field component of a rotating magnet in the chip's X-Y plane. As the magnetic field angle α varies, two sinusoidal voltage signals are output, which are then amplified, compensated, and processed by dedicated internal circuitry to derive the angle value α. The IC provides an incremental ABZ output interface as a replacement for traditional photoelectric encoders, with a maximum incremental output resolution of 1024 pulses/revolution or 4096 steps/revolution. It also provides incremental UVW signals as a replacement for switching Hall commutation, with 1~16 pole pairs programmable. A standard I²C or SSI interface is available for a host controller or MCU to read the chip's internal 14-bit angle value, while single-wire PWM or analog output can provide angle data with 12-bit resolution. The PUSH pin indicates rapid changes in the gap between the magnet and the chip, enabling contactless push-knob applications; alternatively, the magnet's distance variation along the Z-axis can be determined by reading the internal magnetic field strength value to detect press actions. An EEPROM is integrated on-chip; VDD voltage must be >4.5V during programming, and parameters support repeated erase/write cycles.

• Hall-effect based, 0~360° absolute angular position sensing
• 3.3V~5.0V supply voltage, built-in EEPROM (VDD>4.5V required during programming)
• Independent output interfaces: I²C, SSI, ABZ, UVW, analog voltage, PWM, and Z-axis push detection
• Maximum speed up to 55,000 RPM
• System latency of angle output < 5μs
• Incremental ABZ output supports 1~1024 pulses/revolution, user-programmable with any integer resolution
• Incremental UVW output supports 1~16 pole pairs, user-programmable with any integer pole pair count
• Excellent stray magnetic field rejection
• RoHS 2011/65/EU compliant
• SOP-8 and QFN3x3-16L packages

• Absolute angular position sensor
• Closed-loop stepper, BLDC control
• Robotic joint control
• Contactless knob, button
• Contactless potentiometer