TSL265 HIGHSENSITIVITY NEARINFRARED LIGHTTOVOLTAGE CONVERTER TAOS016 – SEPTEMBER 1999 PACKAGE (TOP VIEW) High Sensitivity Rail-to-Rail Output Single Voltage Supply Operation Monolithic Silicon IC Containing Photodiode, Operational Amplifier, and Feedback Components Converts NIR Light Intensity to Output Voltage 1 2 3 Compact 3-Leaded Infrared-Transmissive Plastic Package Wide Supply-Voltage Range Low Supply Current GND VDD OUT Description The TSL265 is a high-sensitivity light-to-voltage optical converter that combines a photodiode and a transimpedance amplifier on a single monolithic CMOS integrated circuit. Output voltage is directly proportional to near infrared (NIR) light intensity (irradiance) on the photodiode. The TSL265 has a transimpedance gain of 3.2 GΩ. Bandwidth and signal-to-noise ratio are optimized by means of a patented design that minimizes the effects of photodiode capacitance. It uses design techniques that provide improved offset voltage stability and low power consumption, and is supplied in a 3-lead visible-light-blocking sidelooker package with an integral lens. The TSL265 is intended for NIR light-sensing applications requiring ultrahigh sensitivity where a linear voltage output is desired. Functional Block Diagram – Voltage Output + Terminal Functions TERMINAL NAME DESCRIPTION NO. GND 1 Ground (substrate). All voltages are referenced to GND. OUT 3 Output voltage VDD 2 Supply voltage www.taosinc.com Copyright 2000, TAOS Inc. Texas Advanced Optoelectronic Solutions Inc. 800 Jupiter Road, Suite 205 Plano, TX 75074 (972) 673-0759 Powered by ICminer.com Electronic-Library Service CopyRight 2003 1 TSL265 HIGHSENSITIVITY NEARINFRARED LIGHTTOVOLTAGE CONVERTER TAOS016 – SEPTEMBER 1999 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10 mA Duration of short-circuit current at (or below) 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 s Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25°C to 85°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25°C to 85°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240°C † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: All voltages are with respect to GND. Recommended Operating Conditions Supply voltage, VDD Operating free-air temperature, TA MIN MAX 2.7 6 UNIT V 0 70 °C Electrical Characteristics at VDD = 5 V, TA = 25°C, λp = 880 nm, RL = 10 kΩ (unless otherwise noted) (see Notes 2 and 3) PARAMETER VD TEST CONDITIONS Dark voltage MIN TYP Ee = 0 VDD = 4.5 V, ,RL = 0, VDD = 4.5 V, RL = 10 kΩ MAX UNIT 100 mV 4.49 VOM Maximum output voltage swing VO Output voltage Ee = 156 mW/cm2 αvo Temperature coefficient of output voltage (VO) Irradiance responsivity TA = 0°C to 70°C, Power supply y rejection j fac = 100 Hz, 1.3 VO(pp) 32 dB fac = 1 kHz, 1.3 VO(pp) 19 dB Ne IDD 4 1.6 See Note 2 Supply current V 4.2 2 2.4 V TBD %/°C 12.8 V/(µW/cm2) 2.5 4.5 mA NOTES: 2. The input irradiance Ee is supplied by a GaAlAs infrared-emitting diode with λp = 880 nm. 3. Irradiance responsivity is characterized over the range VO = 0.1 V to 4.5 V. Switching Characteristics at VDD = 5 V, TA = 25°C, λp = 880 nm, RL = 10 kΩ (unless otherwise noted) (see Note 3) TYP MAX UNIT tr Output pulse rise time PARAMETER See Notes 4 and 5 TEST CONDITIONS 166 250 µs tf Output pulse fall time See Notes 4 and 5 163 250 µs ts Output settling time Integrated noise voltage f = dc to 1 kHz Output noise voltage, g , rms f = 100 Hz f = 10 Hz, Vn MIN See Note 6 µs 3.5 mV RMS 92 86 f = 1 Hz NOTES: 3. 4. 5. 6. 322 µV/√Hz µ √ RMS 104 Irradiance responsivity is characterized over the range VO = 0.1 V to 4.5 V. Measured with RL = 10 kΩ between output and ground. The output waveform is monitored on an oscilloscope with Zi = 1 MΩ, Ci < 20 pF. Measured with external 1-kHz RC filter (10 kΩ/15.9 nF) www.taosinc.com 2 Powered by ICminer.com Electronic-Library Service CopyRight 2003 TSL265 HIGHSENSITIVITY NEARINFRARED LIGHTTOVOLTAGE CONVERTER TAOS016 – SEPTEMBER 1999 PARAMETER MEASUREMENT INFORMATION VDD Pulse Generator Ee 2 Input – IRED (see Note A) 3 tf tr Output + 90% RL TSL265 1 Output (see Note B) 10% 90% 10% VOLTAGE WAVEFORM TEST CIRCUIT NOTES: A. The input irradiance is supplied by a pulsed GaAlAs infrared-emitting diode with the following characteristics: λp = 880 nm, tr < 1 µs, tf < 1 µs. B. The output waveform is monitored on an oscilloscope with the following characteristics: tr < 100 ns, Zi ≥ 1 MHz, Ci ≤ 20 pF. Figure 1. Switching Times TYPICAL CHARACTERISTICS OUTPUT VOLTAGE vs IRRADIANCE PHOTODIODE SPECTRAL RESPONSE 10 1 0.9 TA = 25°C 0.8 1 Relative Responsivity VO – Output Voltage – V VDD = 5 V λp = 880 nm No Load TA = 25°C 0.1 0.7 0.6 0.5 0.4 0.3 0.01 0.2 0.1 0.001 1 10 100 Ee – Irradiance – nW/cm2 1000 0 600 700 Figure 2 www.taosinc.com 1100 Figure 3 Powered by ICminer.com Electronic-Library Service CopyRight 2003 800 900 1000 λ – Wavelength – nm 3 TSL265 HIGHSENSITIVITY NEARINFRARED LIGHTTOVOLTAGE CONVERTER TAOS016 – SEPTEMBER 1999 TYPICAL CHARACTERISTICS NORMALIZED OUTPUT VOLTAGE vs ANGULAR DISPLACEMENT MAXIMUM OUTPUT VOLTAGE vs SUPPLY VOLTAGE 1 Ee = 2 mW/cm2 λp = 880 nm RL = 10 kΩ TA = 25°C 0.8 3 2 1 3.5 4 4.5 VDD – Supply Voltage – V 0.4 0.2 0 80° 0 3 0.6 5 Optical Axis 4 VO – Normalized Output Voltage VOM – Maximum Output Voltage – V 5 60° 40° 20° 0° 20° 40° θ – Angular Displacement Figure 4 SUPPLY CURRENT vs FREE-AIR TEMPERATURE 40 0.62 TA = 25°C 35 0.61 I DD– Supply Current – mA Power Supply Rejection Ratio – dB 80° Figure 5 POWER SUPPLY REJECTION RATIO vs FREQUENCY 30 25 20 15 10 5 0 0.01 k 60° VDD = 5.5 V No Load 0.60 0.59 0.58 0.57 0.56 0.55 0.1 k 1k 10 k 100 k 1000 k 0.54 0 10 20 30 40 50 60 70 TA – Free-Air Temperature – °C f – Frequency – Hz Figure 6 Figure 7 www.taosinc.com 4 Powered by ICminer.com Electronic-Library Service CopyRight 2003 TSL265 HIGHSENSITIVITY NEARINFRARED LIGHTTOVOLTAGE CONVERTER TAOS016 – SEPTEMBER 1999 TYPICAL CHARACTERISTICS SUPPLY CURRENT vs SUPPLY VOLTAGE OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE 0.7 1.2 VO – Output Voltage – Normelized to – 25 °C TA = 25°C No Load I DD – Supply Current – mA 0.6 0.5 0.4 0.3 0.2 0.1 0 2.7 VDD = 5V λp = 300 nm to 700 nm 1 0.8 0.6 0.4 0.2 0 3.2 3.7 4.2 4.7 5.2 VDD – Supply Voltage – V 5.7 0 10 50 60 20 30 40 TA – Free-Air Temperature – °C Figure 8 Figure 9 INTEGRATED NOISE VOLTAGE vs MEASUREMENT BANDWIDTH FREQUENCY OUTPUT VOLTAGE vs SUPPLY VOLTAGE 8000 1.001 Vn – Integrated Noise Voltage – µ Vrms V O – Output Voltage (Normalized) – V 1 0.999 0.998 0.997 0.996 0.995 0.994 0.993 0.992 0.991 0.99 2.5 70 VDD = 5 V TA = 25°C 7000 6000 5000 4000 3000 2000 1000 0 3 3.5 4 4.5 5 5.5 VDD – Supply Voltage – V 6 6.5 10 100 Figure 10 www.taosinc.com 10000 Figure 11 Powered by ICminer.com Electronic-Library Service CopyRight 2003 1000 f – Measurement Bandwidth Frequency – Hz 5 TSL265 HIGHSENSITIVITY NEARINFRARED LIGHTTOVOLTAGE CONVERTER TAOS016 – SEPTEMBER 1999 MECHANICAL DATA The TSL265 is implemented in a clear 3-leaded package with a large molded focusing lens. 0.072 (1,84) 0.056 (1,44) 0.189 (4,80) 0.173 (4,40) 0.035 (0,90) 0.012 (0,30) 0.165 (4,20) 0.150 (3,80) 0.070 (1,80) 0.029 (0,75) 0.070 (1,80) 1.10 (2,80) 0.016 (0,40) 0.189 (4,80) 0.173 (4,40) R 0.035 (0,90) 0.079 (2,00) 0.039 (1,00) 0.027 (0,70) 0.025 (0,65) 0.622 (15,80) 0.543 (13,80) 1 0.079 (2,00) 2 3 0.018 (0,45) 0.018 (0,45) 0.157 (4,00) Figure 12. Package Configuration NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. All dimensions apply before solder dip. Package body is a clear nonfilled optically transparent material Index of refraction of clear plastic is 1.55. www.taosinc.com 6 Powered by ICminer.com Electronic-Library Service CopyRight 2003 TSL265 HIGHSENSITIVITY NEARINFRARED LIGHTTOVOLTAGE CONVERTER TAOS016 – SEPTEMBER 1999 PRODUCTION DATA — information in this document is current at publication date. Products conform to specifications in accordance with the terms of Texas Advanced Optoelectronic Solutions, Inc. standard warranty. Production processing does not necessarily include testing of all parameters. NOTICE Texas Advanced Optoelectronic Solutions, Inc. (TAOS) reserves the right to make changes to the products contained in this document to improve performance or for any other purpose, or to discontinue them without notice. Customers are advised to contact TAOS to obtain the latest product information before placing orders or designing TAOS products into systems. TAOS assumes no responsibility for the use of any products or circuits described in this document or customer product design, conveys no license, either expressed or implied, under any patent or other right, and makes no representation that the circuits are free of patent infringement. TAOS further makes no claim as to the suitability of its products for any particular purpose, nor does TAOS assume any liability arising out of the use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS, INC. PRODUCTS ARE NOT DESIGNED OR INTENDED FOR USE IN CRITICAL APPLICATIONS IN WHICH THE FAILURE OR MALFUNCTION OF THE TAOS PRODUCT MAY RESULT IN PERSONAL INJURY OR DEATH. USE OF TAOS PRODUCTS IN LIFE SUPPORT SYSTEMS IS EXPRESSLY UNAUTHORIZED AND ANY SUCH USE BY A CUSTOMER IS COMPLETELY AT THE CUSTOMER’S RISK. www.taosinc.com Powered by ICminer.com Electronic-Library Service CopyRight 2003 7 TSL265 HIGHSENSITIVITY NEARINFRARED LIGHTTOVOLTAGE CONVERTER TAOS016 – SEPTEMBER 1999 www.taosinc.com 8 Powered by ICminer.com Electronic-Library Service CopyRight 2003