iC-LNB
18-BIT OPTICAL ENCODER WITH SPI AND
SERIAL/PARALLEL OUTPUTS
iC-LNB is an optoelectronic encoder IC for absolute linear and
angle measuring systems, such as glass scales and encoders.
Photodiodes, amplifiers, and comparators, the entire signal
conditioning unit, and interfaces for position data output have
been monolithically integrated into the device.
Applications
•
•
•
Absolute and incremental position sensors
Linear scales and rotary encoders
Motion control
Features
•
•
•
•
•
•
•
•
•
System-on-chip design for excellent reliability
Very compact array size
Leading/trailing sampling of 10 binary tracks pitched at 400 µm
Analog sine/cosine scanning with enlarged photodiodes and
signal conditioning
Differential sine/cosine outputs with 1024 CPR and 500 mVpk
Absolute resolution of up to 18 bits by fast 8-bit vector-tracking
interpolation
Unique FlexCount
®
circuit: freely selectable resolution for
absolute and incremental data
Incremental quadrature outputs with 1 to 16,384 CPR and
programmable index signal
Scalable shift-register for 12 to 18 bits and 1 µs cycles
at 16 MHz clock frequency
•
•
•
•
•
•
•
•
•
•
Parallel data output of 16 bits in Gray code
Permanent RAM monitoring by parity bits
LED illumination control (mean or sin/cos square) by
50 mA high-side current source
Alarm indication for configuration and illumination error
(end of life)
Undervoltage detection
3.3 V-compatible SPI and I/O ports for configuration and
data
4 V to 5.5 V single supply operation
Operating temperature range of –40 °C to 110 °C
Small outline, optoBGA and optoQFN packages for SMT
Available accessories: LED and code discs (1024 CPR)
38-pin optoQFN
5.0 mm x 7.0 mm
30-pin optoBGA LNB2C
7.6 mm x 7.1 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 ]
