iC-RT2624, as it will be known, is aimed at both housed and kit encoders, and will achieve its 26bit resolution using interpolation with standard 26mm code discs, the company claims “even in demanding, dynamic applications”.
AB quadrature and Z outputs are available as is, in <1μs, digitised angle information through BiSS, SSI, or SPI serial interfaces.
Native sin/cos resolution is provided through a one signal path, and an internal programmable sin/cos generator can be set to 2n (n = 0..15) counts per revolution and outputs though a separate path.
“Thanks to auto-calibration and eccentricity compensation, encoder systems with the IC achieve an angular accuracy of less than 0.01°,” said the company. “On-chip calibration can be performed via the BiSS and SPI serial interfaces, or at the push of a button. The dimensions of the code disc can be adjusted with a FlexCode design starting at an outer diameter of 20mm. This allows compact motor feedback, and larger hollow shaft encoders, to be developed with the same sensor.”
The IC is can be used with blue, red or infra-red light, and can automatically adjust the intensity of the illuminating LED.
Diagnostics is built-in: “For instance, a contrast measurement detects when condensation or precipitation from out-gassing ball bearing grease impairs the optical projection before the angle detection is critically disrupted”, said iC-Haus.
Operation is across 3 to 5.5V and -40 to +125°C, and packaging is 7 x 5mm opto-QFN.
Find the device on stand 146 in hall 4A at SPS (25-27 Nov), or on this iC-Haus web page
