iC-MN QFN48

3-Ch. 13-Bit Sin/D Interpolator with Nonius Calc.

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Product description

Encoder device iC-MN is a 3-ch., simultaneous sampling sine-to-digital converter which interpolates sine/cosine sensor signals using a high precision SAR converter with a selectable resolution of up to 13 bits.

Various 2- and 3-track Nonius scale computations can be configured for the calculation of high resolution angle positions; these computations permit angle resolutions of up to 25 bits.

Features

  • 3 chan. simultaneous sampling 13 bit sine-to-digital conversion
  • Differential and single-ended PGA inputs to 200 kHz
  • 2 or 3 track Nonius calculation of up to 25 bit singleturn position
  • Input adaptation to current or voltage signals
  • 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)
  • 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 Ω, short-circuit-proof
  • Position preset function, selectable up/down code direction
  • Signal and system monitoring with configurable error/warning messaging and diagnosis memory
  • Device setup via I/O interface (BiSS) or serial EEPROM
  • Reverse-polarity-proof and tolerant against faulty output wiring
  • Power-good switch protecting the peripheral circuitry
  • Single 5 V supply, operation from -40 °C to +110 °C

Applications

  • Multi-channel sine-to-digital converter
  • Optical and magnetic position sensors
  • Singleturn and multiturn absolute encoders
  • Linear scales for absolute position
  • Resolver systems
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