Description
iC-LF1401 is an integrating light-to-voltage converter with a line of 128 pixels pitched at 63.5 μm (center-to- center distance). Each pixel consists of a 56.4 μm x 200 μm photodiode and an integration capacitor with a sample-and-hold circuit. The integrated control logic makes operation very simple, with only a start and clock signal necessary. A third control input (DIS) enables the integration to be suspended at any time (electronic shutter). When the star t signal is given hold mode is activated for all pixels simultaneously with the next leading clock edge; starting with pixel 1 the hold voltages are switched in sequence to the push-pull output amplifier. The second clock pulse resets all integration capacitors and the integration period starts again in the background during the output phase. A run is complete after 128 clock pulses. iC-LF1401 is suitable for high clock rates of up to 5 MHz. If this is not required the supply current can be reduced via the external bias setting (current into pin RSET).
Features