品圖片：MT6826.jpg)
MT6826S is a new generation of high-speed and high-precision angle encoder chips based on advanced anisotropic magnetoresistive (AMR) technology launched by McGoon Microelectronics. The chip integrates two pairs of AMR Wheatstone bridges positioned at 45° to each other as a sensitive element and a high-performance dedicated signal processing circuit. Since AMR devices operate in the saturation region (with a saturation field of 300 Gaussian) when used as an angle measurement application, the chip only responds to changes in the direction of the magnetic field parallel to the surface of the chip, regardless of the strength of the magnetic field. Therefore MT6826S in the process of use, the processing error of the magnet itself and the installation distance error of the magnet and the chip are relatively low.
MT6826S provides an incremental ABZ output interface to replace traditional optical encoders, with a maximum resolution of 4,096 pulses/revolution or 16,384 steps/revolution. At the same time MT6826S it also provides incremental UVW output, and the resolution supports 1~16 poles/circle.
MT6826S provides a 4-wire SPI interface for the host computer or MCU to read the 15-bit absolute angle value inside the chip. At the same time, the single-line output PWM can also provide absolute angle data with a resolution of 12 bits.
The core performance improvement of the MT6826S is that it provides a convenient self-calibration mode for the client, through which various nonlinearities caused by the unsatisfactory magnet and the deviation of the structure installation can be compensated, so as to greatly improve the INL characteristics.
Product Features
? Working voltage (V)：3.3~5.0
? Working temperature (℃)：-40~125
? System delay (constant speed)：2us~10us
? Maximum supported speed：<120,000 RPM
? ABZ incremental output：1~4096Pulsesper Revolution User Programmable
? UVW incremental output：1-16 Pole-Pairsper Revolution User Programmable
? PWM output：12bit
? Absolute value angle：15bit
? communication interface：4-wire SPI
? Packaging：TSSOP-16,QFN4X4
For more product information, please contact us.
