G9201_15 Datasheet, PDF (1/9 Pages) Hamamatsu Corporation – Image sensor for DWDM wavelength monitor

InGaAs linear image sensors
G9201 to G9204 series
Image sensor for DWDM wavelength monitor
The G9201 to G9204 series are InGaAs linear image sensors designed for WDM monitor detectors in optical communications.
These linear image sensors contain a CMOS charge amplifier array, a CDS circuit, an offset compensation circuit, a shift register
and a timing generator, along with an InGaAs photodiode array, and deliver high sensitivity and stable operation in the near in-
frared range. The package is hermetically sealed for high reliability and the light input window has an anti-reflective coating to
improve the light detection efficiency.
The signal processing circuit on the CMOS chip allows selecting two conversion efficiencies (CE) by external voltage. A wide dy-
namic range can be obtained when the image sensor is operated at CE=16 nV/e-, while a high gain can be obtained at CE=320
nV/e-.
Features
Wide dynamic range
Low noise and low dark current
Two selectable conversion efficiencies
Anti-saturation circuit
CDS circuit*¹
Offset compensation circuit
Simple operation (by built-in timing generator *²)
High resolution: 25 μm pitch (512 ch)
Low crosstalk
256 ch: 1 video line
512 ch: 2 video lines
Applications
DWDM wavelength monitor
Optical spectrum analyzer
Options
InGaAs multichannel detector head C8061-01*³
Multichannel detector head controller C7557-01*³
*1: A major source of noise in charge amplifiers is the reset noise generated when the integration capacitance is reset. A CDS circuit
greatly reduces this reset noise by holding the signal immediately after reset to find the noise differential.
*2: In conventional image sensor operation, external PLD (programmable logic device), etc. is used to input the required timing signals.
However, the G9201 to G9204 series image sensors internally generate all timing signals on the CMOS chip just by supplying CLK
and RESET pulses. This makes it simple to set the timings.
*3: The G9203-256D and G9204-512D are not available for the C7557-01.
Selection guide
Type no.
G9201-256S
G9202-512S
G9203-256D*⁴
G9203-256S
G9204-512D*⁴
G9204-512S
Cooling
One-stage TE-cooled
One-stage TE-cooled
Non-cooled
One-stage TE-cooled
Non-cooled
One-stage TE-cooled
Image size
(mm)
12.8 × 0.25
12.8 × 0.50
Number of Number of
total pixels effective pixels
256
256
512
512
256
256
256
256
512
512
512
512
Spectral response range
(μm)
0.9 to 1.67 (-10 °C)
0.9 to 1.67 (-10 °C)
0.9 to 1.7 (25 °C)
0.9 to 1.67 (-10 °C)
0.9 to 1.7 (25 °C)
0.9 to 1.67 (-10 °C)
Defective
pixels
Appilcable
multichannel
detector head
C8061-01
C8061-01
0
-
C8061-01
-
C8061-01
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