IC-LFS_15 Datasheet, PDF (2/10 Pages) IC-Haus GmbH – 32x1 LINEAR IMAGE SENSOR

iC-LFS
32x1 LINEAR IMAGE SENSOR
Rev A2, Page 2/10
DESCRIPTION
iC-LFS is an integrating light-to-voltage converter with
a single line of 32 pixels pitched at 63.5 µm (center-
to-center distance). Each pixel consists of a 56.4 µm
x 200 µm photodiode, an integration capacitor and a
sample and hold circuit.
The integrated control logic makes operation very sim-
ple, with only a start and clock signal necessary. A
third control input enables the integration period to be
paused at any time (electronic shutter).
With the start signal the hold mode is activated for all
pixels simultaneously with the next rising clock edge;
starting with pixel 1 the hold voltages are switched in
sequence to the push-pull output amplifier. The sec-
ond clock pulse deletes all integration capacitors and
the integration period starts again in the background
during the output phase. A run is complete after 32
clock pulses.
iC-LFS is suitable for high clock rates of up to 5 MHz.
If this is not required the supply current can be re-
duced via the external bias setting.
PACKAGING INFORMATION cDFN10 4 mm x 4 mm
PIN CONFIGURATION cDFN10 4 mm x 4 mm
PIN FUNCTIONS
No. Name Function
10 9 8 7 6
1 2345
dra_cdfn10-4x4-2_lfs_0_pack_3a, 7:1
1 SI Start Integration Input
2 CLK Clock Input
3 AO Analogue Output
4 VDD +5 V Digital Supply Voltage
<P-CODE>5 VCC +5 V Analogue Supply Voltage
6 RSET Bias Current (resistor from VCC to
<A-CODE>
RSET; when connected to GND the in-
ternal bias setting is activated)
<D-CODE>_{7 n.c.}
8 AGND Analogue Ground
9 GND Digital Ground
10 DIS Shutter control
The E-Pad is to be connected to a Ground Plane (AGND) on the PCB.