Lighting
Imaging
Telecom
Imaging Product Line
L-Series Linear CMOS Spectroscopy Sensor
25 or 50 µm pitch, 2.5 mm aperture, 128 to 1024 elements
Description
Features
The PerkinElmer L-series of monolithic
self-scanning linear photodiode arrays
offers a high quality, low cost solution
for spectroscopy and colorimetry appli-
cations in the 300 – 1000 nm range.
The combination of high sensitivity,
low dark current, low switching noise
and high saturation charge of the
L-series provides excellent dynamic
range and great flexibility in setting
integration time.
L-series sensors consist of a linear array
of silicon photodiodes, each connected
to a MOS switch for readout controlled
by an integrated shift register scanning
circuit. Under external clock control,
the shift register sequentially enables
each of the switches directing the
charge on the associated photodiode to
an output line. A dummy output pro-
vides clock noise cancellation. The
L-series devices are mounted in ceramic
side-brazed 22-pin dual-inline pack-
ages with ground and polished fused
silica windows and are pin-compatible
with earlier PerkinElmer SB and TB
series sensors.
• 128, 256, 512 or 1024 photodiode
elements with 25 µm center-to-center
spacing
• 128, 256 or 512 photodiode elements
with 50 µm center-to-center spacing
• 2.5 mm photodiode aperture
• Extremely low dark leakage current
• Low power dissipation
• Clock-controlled sequential readout
at rates up to 1 MHz
• Single-supply operation with
HCMOS-compatible inputs
• Single shift register design
• Wide dynamic range
Caution: While the L-Series imagers have been
designed to resist electrostatic discharge (ESD),
they can be damaged from such discharges.
Always observe proper ESD precautions when
handling and storing these sensors.
• Differential video output for clock
noise cancellation
• High saturation charge 10 pC
(25 µm) or 20 pC (50 µm)
• Antiblooming function for low
crosstalk
• Line Reset Mode for simultaneous
reset of all photodiodes
• Wide spectral response: 300 to
1000 nm
• Polished fused silica window
• On-chip diodes (two) for
temperature monitoring
www.perkinelmer.com/opto
DSP-106.01C - 10/2001W Page 1