Micro-spectrometer - Hamamatsu Photonics

1 Sized, ultra-compact spectrometer head supporting high sensitivity and long wavelength regionC12880 MAMicro seriesThe C12880MA is a high-sensitivity, ultra-compact (fi nger-tip sized) spectrometer head that supports the long wavelength region (up to 850 nm). Hermetically sealed packaging provides improved humidity resistance. This product is suitable for integration into a variety of compact cationUnitImage sensorHigh-sensitivity CMOS linear image sensor with slit-Number of pixels288pixelsPixel size (H V)14 200 mSlit*2 (H V)50 500 mNA* (W D H) *2: Entrance slit aperture size*3: Numeric aperture (solid angle)Absolute maximum ratings (Ta=25 C unless otherwise noted)ParameterSymbolConditionValueUnitS upply voltageVs to +6 VClock pulse voltageV(CLK) to +6 VStart pulse voltageV(ST) to +6 VOperating temperatureToprNo dew condensation*4+5 to +50 CStorage temperatureTstgNo dew condensation*4-20 to +70 C*4: When there is a temperature diff erence between a product and the surrounding area in high humidity environment, dew condensation may occur on the product surface.

2 Dew condensation on the product may cause deterioration in characteristics and : Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the product within the absolute maximum size: mmWeight: 5 gSpectral response range: 340 to 850 nmHigh sensitivitySpectral resolution: 15 nm synchronized integration (electronic shutter function)Hermetic package: high reliability against humidityFor integration into mobile measurement equipmentWavelength conversion factors*1 are listed on final inspection for lights, LEDs, quality control monitors and other environment measuring instrumentsVarious light level measurementsFood inspectionBiometry (POC)Applications*1: Conversion factors for converting the image sensor pixel number into a wavelength. A calculation factor for converting the A/D converted count into the input light level is not seriesC12880MA2 Electrical characteristics [Ta=25 C, Vs=5 V, V(CLK)=V(ST)=5 V] pulse frequencyf(CLK) MHzVideo rateVR-f(CLK)-HzOutput impedance*5Zo-150- Current consumption*6I-20-mA*5: Video signal output terminal (10-pin)An increase in the current consumption at the video output terminal also increases the chip temperature and so causes the dark current to rise.

3 To avoid this, connect a buff er amplifi er to the video output terminal so that the current fl ow is minimized.*6: f(CLK)=5 MHzRecommended terminal voltage (Ta=25 C) pulse voltageHigh levelV(CLK)3 VsVs + pulse voltageHigh levelV(ST)3 VsVs + and optical characteristics [Ta=25 C, Vs=5 V, V(CLK)=V(ST)=5 V] effi ciencyCE-50- V/e-Dark output voltage* output voltage* rmsOutput off set response range -340 to 850-nmSpectral resolution (FWHM)--1215nmWavelength reproducibility*9 + temperature dependence + CSpectral stray light*10SL---25dB*7: Integration time=10 ms*8: Relative value in reference to output offset voltage VoExample: When output offset voltage Vo is V and saturation output voltage Vsat is V, the saturation voltage at the video signal output terminal is V.*9: Measured under constant light input conditions*10: The ratio of the count measured when a light spectrum (655 nm) is input to the count measured at that wavelength 40 seriesC12880MA3 Spectral resolution vs.

4 Wavelength (typical example)(Ta=25 C)300400500600700900800121086420 Spectral resolution (nm)Wavelength (nm)KACCB0382 EASpectral response (typical example)10080604020030040050060070090080 0(Ta=25 C)Relative sensitivity (%)Wavelength (nm)KACCB0381 EAHollowInput slitHigh-sensitivityCMOS linear image sensor with slitReflective concave blazedgratingGrating chipIncident lightOptical component layoutBesides a CMOS image sensor chip integrated with an optical slit by etching technology, the C12880MA employs a refl ective concave blazed grating formed by nanoimprint. In addition, the glass used in the light path of the previous C10988MA-01 is not used in the C12880MA, making it extremely chipHigh-sensitivity CMOS linear image sensor with a slit[Incident light side (back of chip)]StructurePrevious productC10988MA-01C12880 MAMini-spectrometerMicro seriesC12880MA4 Linearity (typical example)10100100010000100000-10-6-810001 00101-2-40426810 (using C13016, Ta=25 C)A/D outputDifference between ideal value and typical example (%)Integration time (ms)A/D output is the output with dark output is subtracted when light is input.

5 The difference between the ideal value and typical example contains a measurement error. The smaller the A/D output, the larger the measurement example of A/D outputIdeal A/D outputDifference between ideal value and typical exampleKACCB0383 EBDark output vs. ambient temperature (typical example)05040302010200001000005000060000 300004000070000using (C13016, integration time: 100 ms)A/D output is the sum of the sensor and circuit offset outputs and the sensor dark temperature ( C)A/D output (averaged over all pixels)KACCB0384 EAMeasurable incident light levelKACCB385EA10-1210-1010-810-610-510- 1310-1410-1110-910-7* Using C13016, input spot diameter 800 m ( =600 nm)Incident light level* (W)C12880 MAMini-spectrometerMicro seriesC12880MA5 Recommended driver circuit exampleCLKSTEOSVsCaseGNDV ideo4691, 35210 CLKEOSSTTRG7 TRGVs+-* Use as neededVsC12880 MAA/D converter,etcTiminggeneratorDigital bufferAnalog arithmetic circuit*(subtraction, amplification, etc.)KACCC0795 EAPrecautions The packaging of the C12880MA is electrically conductive, so be careful when designing the circuit to avoid short circuit caused by contact with a circuit pattern.

6 If external force is repeatedly applied to the lead pins, this may damage the lead pins. To prevent damage due to soldering, be careful of the soldering temperature and a general guide, fi nish soldering within seconds at 350 C or less when soldering by hand, or within 10 seconds at 260 C or less when using a solder seriesC12880MA6 Dimensional outline (unit: mm, tolerance unless otherwise noted: ) + Slit position+Vs (+5 V)GND+Vs (+5 V)CLKCaseSTTRG-EOSV ideo[Top view][Side view][Bottom view]KACCA0356 EBPin connectionsMake electrical connections to an external circuit using +VsSupply voltageISensor power supply: 5 V2 GNDG round-Sensor ground3+VsSupply voltageISensor power supply: 5 V4 CLKC lock pulseISensor clock pulse5 CaseCase-Case connection6 STStart pulseISensor start pulse7 TRGT rigger pulseOPulse for capturing sensor video signals8-Fastening pin-Do not connect of scanOSensor scan end10 VideoVideo outputOSensor video outputNote: Pin no.

7 5 and the case of the Micro-spectrometer are at the same potential. Ensure that the case is not in contact with other po-tentials during use. Parts coming in contact with the case must be set at the same potential as pin no. 5 or insulated from other seriesC12880MA7 Timing pulse cycle*11tpi(ST)381/f(CLK)--sStart pulse high period*12thp(ST)6/f--sStart pulse low periodtlp(ST)375/f--sStart pulse rise and fall timestr(ST), tf(ST)01030nsClock pulse duty-455055%Clock pulse rise and fall timestr(CLK), tf(CLK)01030ns*11: The shortest period required to output the video signals from all pixels.*12: The integration time equals the high period of ST plus 48 CLK shift register starts operation at the rising edge of CLK immediately after ST goes integration time can be changed by changing the ratio of the high and low periods of the fi rst TRG pulse after ST goes low is counted as the fi rst pulse, the Video signal should be acquired at the rising edge of the 89th TRG (CLK)tf(ST)tr(ST)tr(CLK)tlp(ST)thp(ST)tp i(ST)1/f(CLK)()1189234288151234515253878 889 CLKSTV ideoTRGEOSthp(ST)tlp(ST)tpi(ST)87 clocks288 Integration timeMini-spectrometerMicro seriesC12880MA8 Operation examplethp(ST)= stlp(ST)=75 sSTtpi(ST)= sKACCC0772 EAThis is an operating example when the clock pulse frequency is set to maximum (video data rate is also set to maximum), the time per scan to minimum, and the integration time to maximum.

8 Clock pulse frequency [f(CLK)] = Video data rate= 5 MHz Start pulse cycle [tpi(ST)] = 381/f(CLK)= 381/5 MHz= s Low period of start pulse min. [tlp(ST)] = 375/f(CLK)= 375/5 MHz= 75 s High period of start pulse [thp(ST)] = Start pulse cycle [tpi(ST)] - Low period of start pulse min. [tlp(ST)] = s - 75 s= sIntegration time is equal to the high period of start pulse + 48 cycles of clock pulses, so it will be s + s = seriesC12880MA9 Selection chartA mini- spectrometer with SMA connector (for optical fi ber connection), an evaluation circuit, and a driver circuit are available as related products for the mini- spectrometer ( micro series).User circuit boardDigital signalEvaluation circuit (USB connector)C13016 Mini-spectrometerC12880 MADriver circuit (digital I/O)C13618 Mini- spectrometer with SMA connectorC12880MA-20 PCMini-spectrometerC13985 Mini-spectrometerC13985-20 USB connectionKACCC0836 EDMini-spectrometerMicro seriesC12880MA10 Mini- spectrometer with SMA connector C12880MA-20 The C12880MA-20 is a product in which an SMA connector is attached to the C12880MA.

9 It has an optical system inside the connector that can be connected with an optical fi ber (single core, NA= ) with an SMA connector. The specifi cations of the C12880MA-20 is the same as those of the C12880MA except the connector nameType diameter( m)Specifi cationFiber for UV/visible range(resistance to UV)A15362-01600NA= , length= mWith SMA905D connector on each endA15362-05400 Dimensional outline (unit: mm)KACCA0381 EBTolerance unless otherwise noted: seriesC12880MA11 Driver circuit for mini- spectrometer ( micro series) C13618 The C13618 is a driver circuit that the C12880MA or C12880MA-20 can be mounted on. It has an A/D converter that can be used to obtain digital data (16-bit) by applying an ex-ternal power supply and drive signal. Using this driver circuit with the user s circuit board having LVDS level and V level I/O ports eliminates the need for designing analog cir-cuits and video output conversion cationUnitApplicable micro -spectrometers (sold separately)C12880MA, C12880MA-20-A/D converterAD7961 by Analog Devices-I/O terminalConnector 801-87-012-20-002101 by PRECI-DIP-Number of I/O terminals12-Dimensions55 40 maximum ratings ParameterSymbolConditionValueUnitOperati ng temperatureToprNo dew condensation*13+5 to +40 CStorage temperatureTstgNo dew condensation*13-20 to +70 C*13: When there is a temperature diff erence between a product and the surrounding area in high humidity environment, dew condensation may occur on the product surface.

10 Dew condensation on the product may cause deterioration in characteristics and : Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the product within the absolute maximum characteristics (Ta=25 C, Vs=SENSOR_ST=SENSOR_CLK= V) clock converter clock frequencyAD_CLK-250300 MHzCurrent consumptionIc-150200mARecommended operating conditions (Ta=25 C) clock input signalHigh start input signalHigh converter output signal*14 Input voltage rangeAD_CLK+, erential input *14: AD_CLK+ and AD_CLK- are a pair of LVDS seriesC12880MA12 Dimensional outline (unit: mm)Pin ( 11) (4 ) unless otherwise noted: voltage2NC--3 SENSOR_CLKI nputClock pulse for C12880MA and C12880MA-204 SENSOR_STInputStart pulse for C12880MA and C12880MA-205 SENSOR_TRGO utputTrigger pulse for C12880MA and C12880MA-206AD_CLK+InputClock pulse for A/D converter7AD_CLK-8AD_DCO+OutputBuff ered clock pulse of A/D converter9AD_DCO-10AD_D+OutputData of A/D converter11AD_D-12 GND-GroundMini-spectrometerMicro seriesC12880MA13 Mini- spectrometer ( micro series) evaluation circuit C13016 (sold separately)The C13016 is a circuit board designed to simply evaluate the characteristics of the mini- spectrometer C12880MA.