3通道同时采样13位正余弦波插补细分芯片, 游标技术

Features

• 3 chan. simultaneous sampling 13 bit sine-to-digital conversion

• Differential and single-ended voltage or current PGA inputs to 200 kHz

• Adjustable signal conditioning for offset, amplitude and phase

• Input signal stabilization by LED or MR bridge supply tracking (via controlled 50 mA and 2 x 10 mA highside sources)

• 2 or 3 track nonius calculation of up to 25 bit singleturn position

• Data update within 7 μs supported by flash period counting

• Serial 2-wire interface to multiturn sensors (BiSS, SSI, 2-bit)

• Fast, serial I/O interface with fail-safe RS422 transceiver (SSI to 4 MHz, BiSS C to 10 MHz)

• Differential 1 Vpp sin/cos outputs to 100 Ohm, short-circuit-proof

• Signal and system monitoring with configurable error/warning messaging and diagnosis memory

• Reverse-polarity-proof and tolerant against faulty output wiring

Applications

• Multi-channel sine-to-digital converter

• Optical and magnetic position sensors

• Singleturn and multiturn absolute encoders

• Linear scales for absolute position