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ET2010

ANALOG SIGNAL PROCESSOR with BALANCE TRIM and VARIABLE GAIN

The ET2010 ASP is a monolithic bipolar ASIC designed to transform nanoamp-level differential photocurrents into 1Vpp sinewaves that are suitable for interpolation.  A gain adjustment is provided that affects all channels in concert. Separate balance adjustments are provided for each output, for centering the waveforms on the reference voltage.  In most encoder designs, the LED optical output level changes with supply voltage, temperature, and age.  This causes corresponding changes in the photocurrent signal levels.  The ASP rejects these variations in the input signals, resulting in output levels that are stable over time, temperature, and supply voltage.

ET2010