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The Interpolator iCs are fast analog-to-digital converters especially made for the conversion of sine/cosine sensor signals.

The phase angle is retrieved using flash, vector tracking, or sample&hold SAR conversion principles. Incremental output signals are supplied as A/B/Z encoder quadrature signals; BiSS, SSI or SPI interfaces are used when absolute position data is available.

Applications:

• Motion control
• Position measuring systems
• Robotics

Download the whitepaper "High-Precision Sine/Cosine Interpolation" (Chinese)

iC-Haus Interpolator iCs:

iC-MG	8-Bit Sin/Cos Interpolation iC with RS422 Driver Key Features: Real-time tracking, no-missing-code interpolation Selectable interpolation factors: x1, x2, x5, x10, x20, x25, x50 100 kHz input frequency at highest resolution Differential and single-ended PGA inputs for voltage or current signals Signal conditioning for offset, amplitude and phase Controlled 50 mA current source as LED or MR bridge supply Encoder quadrature output via short-circuit-proof 20 mA push-pull line drivers (RS422) Fail-safe counting assured by a guaranteed minimum phase distance Index signal generation at selectable positions with adjustable length Sub-system power switch offers reverse polarity protection for the overall system Loss-of-signal indicator Applications: Optical and magnetic position sensors Rotary encoders Linear encoders Download iC-MG technical documentation Download iC-MG Software More information about iC-MG (iC-Haus website in English)
iC-MNF	26-bit Nonius Encoder with 3-Ch. Sampling 14-bit Sin/D Interpolation Key Features: Fast 14-bit sine-to-digital conversion within 3 μs Simultaneous sampling of 3 channels 2 or 3 track nonius calculation of up to 26 bit singleturn position SPI interface and fail-safe RS422 transceiver for BiSS C, SSI Differential 1 Vpp sin/cos outputs to 100 Ω, short-circuit-proof Differential and single-ended PGA inputs for up to 200 kHz Adjustable signal conditioning for offset, amplitude and phase Input signal stabilization by LED or MR bridge current control Serial 2-wire interface to multiturn sensors (BiSS, SSI, 2-bit) Signal and system monitoring with diagnosis memory CRC-protected configuration, OEM and USER data from external EEPROM (I2C) Reverse-polarity-proof and tolerant against faulty output wiring Power-good switch protecting the peripheral circuitry Applications: Optical and magnetic position sensors Multi-channel sine-to-digital converter Singleturn and multiturn absolute encoders Linear scales for absolute position Download iC-MNF Flyer (Chinese) Download iC-MNF technical documentation Download material about iC-MNF Evaluation Kits and Tools Download iC-MNF Software BiSS-C Protocol Description (Chinese) More information about iC-MNF (iC-Haus website in English)
iC-MQ	Programmable 9-Bit Sin/Cos Interpolation IC with Fail-Safe RS422 Line Driver Key Features: No-latency sine-to-digital conversion to 400 angle steps 200 kHz input frequency for interpolation factors of x1 to x5 (10 kHz for x100) Flexible I/O pin configuration due to signal path multiplexers PGA inputs for differential and single-ended voltage/current signals Signal conditioning for offset, amplitude and phase Controlled 50 mA current source as LED or MR bridge supply Fault-tolerant RS422 line drivers to 50 mA Quadrature signals with selectable min. phase distance for glitch free counter control Index signal processing with adjustable position and length Supply monitoring with power switch for reverse polarity tolerant systems Excessive temperature protection with sensor calibration Signal and operation monitoring with programmable alarm output, driver shutdown and error memory Applications: Optical and magnetic position sensors Rotary encoders Linear encoders Download iC-MQ technical documentation Download material about iC-MQ Evaluation Kits and Tools Download iC-MQ Software More information about iC-MQ (iC-Haus website in English)
iC-MR3	13-Bit S&H Sin/Cos Interpolator with MCU Interface for Functional Safety Key Features: Triggered 13-bit sine-to-digital conversion within 2 μs Precision PGA for differential and single-ended signals of up to 500 kHz Voltage or current input mode with signal monitoring Adjustable signal conditioning for offset, amplitude, and phase Input signal stabilization through LED or MR bridge current control of up to 50 mA 8-bit parallel and serial I/O interfaces (BiSS, SSI, and SPI) with separate low-voltage supply Absolute data interface (ADI: BiSS/SSI) for initialization For position data of up to 50 bit with adjustable singleturn/multiturn data length Position data preset using ST/MT offset registers 12-bit A/D converter for temperature sensing Special functions for safety applications (signal monitoring, sign-of-life counter, and extended CRC) Current-limited, differential 1 Vpp sine/cosine outputs to 100 Ω Device configurable through I/O interfaces or a serial EEPROM Single-sided 5 V operation from -40 to +125 °C Applications: Fast position decoding for safety-oriented encoder systems Motor feedback systems Download iC-MR3 Flyer (Chinese) Download iC-MR3 technical documentation Download material about iC-MR3 Evaluation Kits and Tools Download iC-MR3 Software BiSS-C Protocol Description (Chinese) More information about iC-MR3 (iC-Haus website in English)
iC-NQC	13-Bit Signal Conditioning Interpolator with BiSS-C Interface Key Features: Resolution of up to 8,192 angle steps per sine period Count-safe vector follower principle, real-time system (conversion time 250 ns) with 70 MHz sampling rate Input frequency of up to 250 kHz Signal conditioning for offset, amplitude and phase A/B quadrature signals of up to 2 MHz with adjustable minimum transition distance Zero signal processing, adjustable in index position and width Absolute angle output via fast serial interface (BiSS, SSI) Period counting with up to 24 bits Error monitoring of frequency, amplitude and configuration Applications: Interpolator IC for angle resolution from sine/cosine sensor signals Optical encoders MR sensor systems Download iC-NQC technical documentation Download material about iC-NQC Evaluation Kits and Tools Download iC-NQC Software BiSS-C Protocol Description (Chinese) More information about iC-NQC (iC-Haus website in English)
iC-NQI	13-bit Signal Conditioning Interpolator with 2-Wire Interface Key Features: Resolution of up to 8,192 angle steps per sine period Count-safe vector follower principle, real-time system (conversion time 250 ns) with 70 MHz sampling rate Input frequency of up to 250 kHz Signal conditioning for offset, amplitude and phase A/B quadrature signals of up to 2 MHz with adjustable minimum transition distance Zero signal processing, adjustable in index position and width Serial output of absolute angle data at clock rates of up to 10 MHz Period counting with up to 24 bits Error monitoring of frequency, amplitude and configuration Applications: Interpolator IC for angle resolution from sine/cosine sensor signals Optical encoders MR sensor systems Download material about iC-NQI Evaluation Kits and Tools Download iC-NQI Software More information about iC-NQI (iC-Haus website in English)
iC-NV	6-Bit Sin/Cos Flash Converter with Pin-Selectable Interpolation (to x16) Key Features: Fast flash converter Selectable resolution of up to 64 steps per cycle and up to 16-fold interpolation Integrated instrumentation amplifiers with adjustable gain 200kHz input frequency with the highest resolution Incremental A QUAD B output of up to 3.2 MHz Integrated glitch filter Reversed A/B phase selectable Index signal processing Pin-configurable Applications: Angle interpolation from sine/cosine input signals Linear and rotary encoders MR sensor systems Download iC-NV technical documentation Download material about iC-NV Evaluation Kits and Tools More information about iC-NV (iC-Haus website in English)
iC-NVH	6-Bit Sin/Cos Flash Converter with Pin-Selectable Interpolation (to x16) Key Features: Fast flash converter Selectable resolution of up to 64 steps per cycle and up to 16-fold interpolation Integrated instrumentation amplifiers with adjustable gain 200kHz input frequency with the highest resolution Incremental A QUAD B output of up to 3.2 MHz Integrated glitch filter Reversed A/B phase selectable Index signal processing with half cycle index output Pin-configurable Applications: Angle interpolation from sine/cosine input signals Linear and rotary encoders MR sensor systems Download iC-NVH technical documentation More information about iC-NVH (iC-Haus website in English)
iC-PI	Programmable 12-Bit Sin/Cos Interpolation iC with RS422 Driver Key Features: Latency-free sine-to-digital conversion of up to 4000/4096 angle steps Input frequency: 500 kHz (x10), 80 kHz (x100), 8 kHz (x1000) Flexible pin assignment due to signal path multiplexers PGA inputs for differential and single-ended signals Variable input resistance for current/voltage conversion Signal conditioning for offset, amplitude and phase Controlled 50 mA current source for LED or MR sensor supply Fault-tolerant RS422 output via adjustable drivers (up to 50 mA) Glitch-free due to guaranteed minimum edge distance Zero signal conditioning and electronic index pulse generation Signal and operation monitoring with configurable alarm output, output shutdown and error storage I2C multimaster interface for in-circuit calibration and parameters (EEPROM) Adjustable overtemperature alarm and shutdown Supply from 4.3 to 5.5 V, operation from -40 to +100 °C Reverse-polarity-proof including the sub-system Applications: Optical and magnetic position sensors Linear scales High-resolution angle sensing Download iC-PI Flyer (Chinese) Download iC-PI technical documentation Download material about iC-PI Evaluation Kits and Tools Download iC-PI Software More information about iC-PI (iC-Haus website in English)
iC-TW28	10-Bit Sin/Cos Interpolator with Auto-Calibration Key Features: Differential PGA inputs for sine, cosine, and index 700 kHz input frequency at full resolution AB output frequency of up to 12.5 MHz Automatic compensation of amplitude, offset, and phase errors Low latency (typ. 1.5 μs) Differential RS422 line driver outputs for ABZ or UVW Simultaneous single-ended outputs for ABZ and UVW Digital filtering for ultra-low output jitter Configured by pins or SPI In-field re-configuration via Encoder Link interface Easy to use with built-in line driver, EEPROM, and oscillator Push-button automatic calibration for fast commissioning LED intensity control by PWM output 10-bit angle data and 14-bit multi-cycle counter available to SPI Single 3.3 V supply Applications: Rotary and linear encoders Magnetic or optical sin/cos sensor interface Brushless motor commutation (2...64 poles) Embedded motion control Download iC-TW28 Flyer (Chinese) Download iC-TW28 technical documentation Download material about iC-TW28 Evaluation Kits and Tools Download iC-TW28 Software More information about iC-TW28 (iC-Haus website in English)
iC-TW29	26-Bit Encoder Processor with Interpolation and BiSS Interface Key Features: Any output resolution with any input resolution Independently-programmed ABZ, UVW, and BiSS resolutions Absolute data interface for external revolution counters BiSS C-Mode interface (Encoder Profiles 3, 3S, and 4) 26-bit single-turn position and 32-bit revolution count via SPI Four capture registers for coded reference marks and touch-probe applications Eccentricity compensation Input frequency up to 700 kHz AB output frequency of up to 12.5 MHz Differential RS422 line driver outputs for ABZ or UVW Simultaneous single-ended outputs for ABZ, UVW, BiSS Automatic compensation of amplitude, offset, and phase errors Digital filtering for ultra-low output jitter Encoder Link interface for in-field re-configuration Internal EEPROM and oscillator LED intensity control by PWM output Low latency (2.4 µs or 5.0 μs) Pin-compatible with iC-TW28 Applications: Rotary and linear incremental or absolute encoders Magnetic or optical sin/cos sensor interface Brushless motor commutation (2...64 poles) Embedded motion control Download iC-TW29 Flyer (Chinese) Download iC-TW29 technical documentation Download material about iC-TW29 Evaluation Kits and Tools Download iC-TW29 Software BiSS-C Protocol Description (Chinese) More information about iC-TW29 (iC-Haus website in English)
iC-TW8	16-Bit Sin/Cos Interpolator with Automatic Calibration Key Features: Input frequency of up to 125 kHz Differential sine/cosine input signal range of 20 mV to 1.4 V peak-peak Binary/decimal interpolation factors from x0.25 to x16384 Post-AB divider [1/1 to 1/32] allows fractional resolution Simple automatic one-pin calibration Easy configuration: by static pins (for generic ABZ output) Advanced configuration: 1-wire interface, 3 and 4-wire SPI (32 MHz), serial I²C EEPROM PWM or ABZ quadrature encoder output signals Incremental ABZ output to 8 MHz (32 MHz edge separation) Position and velocity read-out (32 bit SPI) Sophisticated error handling and signal monitoring Static 64 position LUT to compensate for arbitrary sensor distortions Supply voltage range of 3.1 V to 5.5 V Applications: Sine/cosine interpolation Signal conditioning with auto calibration Linear and rotary encoders Flexible incremental encoder systems Download iC-TW8 Flyer (Chinese) Download iC-TW8 technical documentation Download material about iC-TW8 Evaluation Kits and Tools Download iC-TW8 Software More information about iC-TW8 (iC-Haus website in English)

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