128x1 Linear Image Sensor 1401

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Part #:
Contact Symmetry For Lead Time
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iC-LF1401 is an integrating light-to-voltage converter with a line of 128 pixels pitched at 63.5µm (center-tocenter distance). Each pixel consists of a 56.4µm x 200µm 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 start 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).


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128 active photo pixels of 56 m at a 63.5 m pitch (400 DPI)
5 V single supply operation
Can run off external bias to reduce power consumption
Glitch-free analogue output
High clockrates of up to 5 MHz
High sensitivity and uniformity over wavelength
Integrating L-V conversion followed by a sample & hold circuit
Only 128 clocks required for readout
Pin-to-pin compatible with TSL1401
Push-pull output amplifier
Shutter function enables flexible integration times

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128x1 Linear Image Sensor 1401
128x1 Linear Image Sensor 1401