iC-LGC
21-BIT OPTICAL POSITION ENCODER WITH
SERIAL/PARALLEL AND SIN/COS OUTPUT
iC-LGC is an optoelectronic encoder iC for absolute position
sensors. Photosensors, amplifiers and comparators, the entire
signal conditioning and data processing unit and fast I/O inter-
faces are monolithically integrated on the chip.
Applications
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Absolute position encoders for safety-related controls
Analog and digital motor feedback systems
Robotics, tooling machines, servo drives
Features
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System-on-chip design with integrated photosensors
Excellent matching and reliability
Differential scanning for EMI immunity and operation
up to 125 °C
Enlarged assembly tolerance due to pre-positioned
and post-positioned code scanning
13 digital tracks pitched at just 500 μm
2 sine/cosine tracks with analog signal conditioning
Singleturn resolution of 16 to 21 bits by 3-bit flash or
8-bit S&H ADC
Multiturn data processing via 2-pin A/B or SSI interface,
embedded low power counter for battery supply
LED power control with a 50 mA highside driver
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Adjustable temperature sensor with min/max alarm
Operational monitoring and alarm/warning messaging:
missing code step, disc data error, configuration error,
LED end-of-life, out-of-range temperature
Safety features: CRC-protected setup with verification,
CRC-protected data output with life counter
Operating modes: hardware encoder (up to 16 bits), serial
encoder (SSI, BiSS C), parallel encoder (8-bit parallel μC)
4 to 5.5 V single supply operation, low power consumption
Small-outline optoBGA or BLCC package for SMT
Available accessories: LED lamps and code discs
Options: extended temperature range of -40 to +125 °C,
customized COB modules, customized code designs
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40-pin BLCC Package LG5C
10.2 mm x 11.9 mm
44-pin optoBGA Package LG21C
8.0 mm x 10.0 mm
Am Kuemmerling 18 • D-55294 Bodenheim, Germany
Tel. +49 61 35 / 92 92-30 0 • Fax +49 61 35 / 92 92-19 2 • http://www.ichaus.com
ICHAUS [ IC-HAUS GMBH ]
