MagnTek · New Product | MT6620 Magnetic Angle Encoder Chip for Off Axis Applications
Magnetic angle encoder chip for off axis applications
MT6620 | Angle detection IC for fixed induction magnetic poles
■Fixed 2mm magnetic induction pole distance, suitable for off-axis angle and linear displacement detection
■Provide a simple self calibration mode for the client, which automatically calculates compensation without data interaction
■Supports multiple outputs such as ABZ, UVW, PWM, etc
■Incremental ABZ can provide up to 2500 lines (10000 LSBs) resolution per magnetic cycle (4mm)
■Built in EEPROM, programmable from 3.3 to 5.0
MT6620 is a new generation sensor chip developed by MagnTek based on fixed pole Hall magnetic induction technology for off axis angle and position detection. The chip integrates a Hall array with a pole distance of 2mm. When a magnetic grating ruler or magnetic ring with a corresponding pole distance of 2mm passes over the chip Hall array, the chip can sense the sine and cosine voltage signals that vary with the angle position through Hall principle, and calculate the corresponding position and angle data through subsequent processing. The MT6620 provides incremental ABZ output similar to traditional photoelectric encoders, with a maximum resolution of 2500 pulses per magnetic pair or 10000 steps per magnetic pair; At the same time, MT6620 also provides incremental UVW output, with a resolution support of 1-63 pairs of poles/magnetic pairs. The core performance improvement of MT6620 lies in providing a convenient self calibration mode for the client (without data interaction). Through self calibration, various nonlinearities caused by imperfect magnets and structural installation deviations can be compensated, greatly improving linearity.
