Multiplexed InGaAs PIN
Photodiode Array
MXA-256-X
Description
EVERYTHING
IN A
The MXA-256-X detector is a hybrid
focal plane Indium Gallium Arsenide
PIN photodiode array with wavelength
response ranging from 800 nm to 1700
nm. The array has 256 elements
configured in a linear orientation with
standard pixel height of 0.5 mm. A
buffered multiplexer provides individual
CMOS amplifiers for each photodiode.
The integrating amplifier maintains zero
volt bias across each InGaAs
NEW
800 - 1700 nm
LIGHT.
photodiode, minimizing dark current
and low frequency noise and allowing
for longer exposure times with
increased sensitivity. A static shift
register scanning circuit sequentially
selects sample-and-hold integrator
output voltages which are proportional
to input optical power. On-chip
Features
correlated double sampling removes
integrator offsets and further
• 256 multiplexed elements
• High resolution (50 micron pitch)
• Exposure times 10 micro sec. - 10 sec.
• Wide dynamic range (14-bit)
• Correlated double sampling
• 800 - 1700 nm response
suppresses low frequency noise. The
array is available in a 28 pin dual-in-line
package. Included in the assembly are
a single-stage thermoelectric cooler,
silicon multiplexer, bias resistor and
bypass capacitors.
Applications
• Fiber optics, WDM monitor
• NIR spectroscopy
• NIR imaging
• NIR astronomy
• Far-field analysis
