Silicon Avalanche Photodiode SAE-Series (NIR-Enhanced) Description The SAE230NS and SAE500NS epitaxial avalanche photodiodes are general purpose APDs with high responsivity and extremely fast rise and fall times through out the 550 to 1050 nm wavelength range. The responsivity is optimised for 850 nm 900 nm for use in rangefinding. A variety of package options is available. Features High quantum efficiency Low noise, high speed Multiplication gain, M>100 available 230 µm and 500 µm diameter active area Gradual multiplication curve Wide operating temperature range Applications Rangefinding Optical communication systems Generic Characteristics at Ta = 25 C 108/16 / V13 / IF / lcd/sae-series_nir-enhanced Wavelength range SAE230NX SAE500NX Min Typ Max Min Typ Max Units 550 1050 550 1050 nm Peak sensitivity 850 850 nm Diameter 230 500 µm
Absolute Maximum Ratings SAE230NX SAE500NX Min Max Min Max Units Storage temperature -55 100-55 100 C Operating temperature* -40 85-40 85 C Reverse current Peak value (CW operation) Reverse current Peak value (1 sec duration) Forward current I F at 21 C average value (CW operation) Forward current IF at 21 C Peak value (1sec duration) 200 200 µa 1 1 ma 5 5 ma 50 50 ma Max. total power dissipation 60 60 mw Soldering (for 15 sec.) 260 260 C * Extended operating temperature range possible for special design considerations Electrical Characteristics, Ta = 25 C, M = 100 208/16 / V13 / IF / lcd/sae-series_nir-enhanced SAE230NX SAE500NX Min Typ Max Min Typ Max Units Breakdown voltage @ ld= 10 µa 150 230 300 150 230 300 Volt Responsivity @ 905 nm 45 45 A/W V br temperature coefficient 0.6 1.5 0.6 1.5 V/ C Dark current 0.5 3.0 1.0 5.0 na Noise current 0.2 0.5 0.2 0.5 pa/ sqrthz Capacitance 1.0 1.5 2.0 3.0 pf Rise time @ M=100 500 500 psec
Fig. 1: Spectral Response (@ M = 100) Fig. 2: Quantum Efficiency vs. Wavelength 60 50 1 0,9 0,8 Responsivity (A/W) 40 30 20 10 0 500 600 700 800 900 1000 1100 Wavelength (nm) Quantum Efficiency 0,7 0,6 0,5 0,4 0,3 0,2 0,1 0 500 600 700 800 900 1000 1100 Wavelength (nm) Fig. 3: Typica Dark Current Characteristics Fig. 4: Dark Current - Voltage characteristics 1,0E-06 0,00001 0,000001 1,0E-07 0,0000001 Current (A) 1,0E-08 1,0E-09 SAE500 Dark Current (A) 1E-08 1E-09 1E-10-25 C 0 C +25 C +50 C +75 C SAE230 1E-11 1,0E-10 0 50 100 150 200 250 Bias Voltage (V) 1E-12 100 150 200 250 Bias Voltage (V) Fig. 5: Gain - Voltage Characteristics Fig. 5: Capacitance vs. Reverse Voltage 1000 10 9 8 100 7 308/16 / V13 / IF / lcd/sae-series_nir-enhanced Gain 10 1 50 70 90 110 130 150 170 190 210 230 250 Bias Voltage (V) -25 C 0 C +25 C +50 C +75 C Capacitance (pf) 6 5 4 3 SAE500 2 1 SAE230 0 0 50 100 150 200 250 Bias Voltage (V)
Fig. 7: Typicl APD Noise Density as a Function of Gain 1,00 Fig. 8: Excess Noise Factor 100 Noise Density (pa/sqrt(hz)) 0,10 Excess Noise Factor 10 k eff = 0.04 0,01 10 100 1000 Gain 1 10 100 1000 Gain Product Number Designations S A E N Diameter 230 = 230 µm 500 = 500 µm Spectral Response N = NIR enhanced Package Style F3 = TO-46 (with 905 nm filter) L3 = TO-46 (with ball lens) M8 = SMD M8F= SMD (with 905 nm filter) S2 = TO-46 (2 pin) 408/16 / V13 / IF / lcd/sae-series_nir-enhanced S3 = TO-46 (3 pin) T6 = TO-37 (with TEC) Y1 = Ceramic Submount Y2 = Ceramic Submount
Package Drawings Package F3 TO-46 (with filter) Package L3 TO-46 (with ball lens) 508/16 / V13 / IF / lcd/sae-series_nir-enhanced
Package M8 SMD Package M8F SMD with 905 nm filter 608/16 / V13 / IF / lcd/sae-series_nir-enhanced
Package S2 TO-46 (2-pin) Package S3 TO-46 (3 pin) 708/16 / V13 / IF / lcd/sae-series_nir-enhanced
Package T6 TO-37 (with TEC) Package Y1 Ceramic Submount 808/16 / V13 / IF / lcd/sae-series_nir-enhanced
Package Y2 Ceramic Submount Product Changes LASER COMPONENTS reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. Ordering Information Products can be ordered directly from LASER COMPONENTS or its representatives. For a complete listing of representatives, visit our website at Custom designed products are available on request. 908/16 / V13 / IF / lcd/sae-series_nir-enhanced