TRS1722

TRS1722 TAOS | Alldatasheet

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TRS1722, TRS1755, TRS1766 HIGH SENSITIVITY REFLECTIVE COLOR SENSOR WITH LIGHTTOVOLTAGE CONVERTERS TAOS034 – NOVEMBER 2002 The LUMENOLOGY Company Copyright 2002, TAOS Inc. www.taosinc.com Converts Reflected Light Intensity to Output Voltage Integral Color LEDs and Matching Color Filters on Sensors Sensor is a Monolithic Silicon IC Containing a Photodiode, Operational Amplifier, Feedback Components, and Color Filter High-Output LEDs and High-Sensitivity Sensors Single Voltage Supply Operation Surface-Mount Package

Description

The TRS1722, TRS1755, and TRS1766 are high-sensitivity reflective color sensors in red (630 nm), green (567 nm), and blue (470 nm) — respectively — with light-to-voltage converters. Each device consists of a colored LED light source, a photodiode light sensor with matching optical color filter, a transimpedance amplifier, and on-board signal conditioning. Output voltage is directly proportional to the reflected light intensity on the photodiode plus any ambient light (which may be considered noise). Functional Block Diagram Voltage Output+ LED Anode ÇÇÇÇ ÇÇÇÇ External Reflecting Surface Texas Advanced Optoelectronic Solutions Inc.

800 Jupiter Road, Suite 205 Plano, TX 75074 (972) 673-0759

(TOP VIEW) ANODE 1 GND 2

4 OUT

3 VDD

TRS1722, TRS1755, TRS1766 HIGH SENSITIVITY REFLECTIVE COLOR SENSOR WITH LIGHTTOVOLTAGE CONVERTERS TAOS034 – NOVEMBER 2002 Copyright 2002, TAOS Inc. The LUMENOLOGY Company www.taosinc.com Terminal Functions TERMINAL DESCRIPTIONNAME NO. DESCRIPTION GND 2 Ground. LED cathode and sensor ground. All voltages are referenced to GND. ANODE 1 LED anode drive input OUT 4 Output voltage VDD 3 Supply voltage Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)† † 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 MIN MAX UNIT Supply voltage, VDD 3 5.5 V LED forward current 0 10 mA Operating free-air temperature, TA 0 70 °C LED PARAMETER TEST CONDITIONS TRS1722 TRS1755 TRS1766 UNITPARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNIT Vf Forward voltage If = 20 mA 2.2 3 2.3 3 2.7 4 V Ir Reverse leakage Vr = 5 V 10 10 10 µA Po Radiant flux If = 5 mA 14 5 300 µW λ Wavelength If = 5 mA 630 567 468 nm BW Bandwidth If = 5 mA 40 26 26 nm

TRS1722, TRS1755, TRS1766 HIGH SENSITIVITY REFLECTIVE COLOR SENSOR WITH LIGHTTOVOLTAGE CONVERTERS TAOS034 – NOVEMBER 2002 The LUMENOLOGY Company Copyright 2002, TAOS Inc. www.taosinc.com Electrical Characteristics at VDD = 5 V, TA = 25°C, RL = 10 kΩ (unless otherwise noted) (continued) Detector (see Notes 2 and 3) PARAMETER TEST CONDITIONS TRS1722 TRS1755 TRS1766 UNITPARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNIT VD Dark voltage Ee = 0 0 20 0 20 0 20 mV V Maximum output voltage No Load 4.49 4.49 4.49 VVOM Maximum out ut voltage swing R L = 10 kΩ 4 4.2 4 4.2 4 4.2 V α VD Temperature coefficient of dark voltage (VD ) TA = 0°C to 70°C –15 –15 –15 µV/°C λp = 470 nm, see Notes 4 and 7 20 90 300 R Irradiance responsivity λp = 524 nm, see Notes 5 and 7 35 300 130 mV/ (µW/R e Irradiance responsivityλp =565 nm, see Notes 7 and 8 90 300 22 (µW/ cm 2) λp = 635 nm, see Notes 6 and 7 460 35 13 λp = 470 nm, see Notes 4 and 7 0.12 0.47 1.57 R Illuminance responsivity λp = 524 nm, see Notes 5 and 7 0.027 0.24 0.10 V/IxR V Illuminance responsivityλp = 565 nm, see Notes 7 and 8 0.06 0.20 0.015 V/Ix λp = 635 nm, see Notes 6 and 7 1.21 0.093 0.033 PSRR Power supply rejection fac = 100 Hz, see Note 10 55 55 55 dB yj ratio fac = 1 kHz, see Note 10 35 35 35 dB NOTES: 2. Measured with RL = 10 kΩ between output and ground. 3. Optical measurements are made using small-angle incident radiation from a light-emitting diode (LED) optical source. 4. The input irradiance is supplied by an InGaN light-emitting diode with the following characteristics: peak wavelength λ p = 470 nm, spectral halfwidth Δλ ‰ = 35 nm, luminous efficacy = 75 lm/W. 5. The input irradiance is supplied by an InGaN light-emitting diode with the following characteristics: peak wavelength λp = 524 nm, spectral halfwidth Δλ ‰ = 47 nm, luminous efficacy = 520 lm/W. 6. The input irradiance is supplied by an AlInGaP light-emitting diode with the following characteristics: peak wavelength λp = 635 nm, spectral halfwidth Δλ ‰ = 17 nm, luminous efficacy = 150 lm/W. 7. Responsivity is characterized over the range VO = 0.1 V to 4.5 V. The best-fit straight line of Output Voltage VO versus Irradiance Ee over this range will typically have a positive extrapolated VO value for Ee = 0. 8. The input irradiance is supplied by a GaP light-emitting diode with the following characteristics: peak wavelength λp = 565 nm, spectral halfwidth Δλ ‰ = 28 nm, luminous efficacy = 595 lm/W. 9. Illuminance responsivity RV is calculated from the irradiance responsivity by using the LED luminous efficacy values stated in Notes 4, 5, 6, and 8, and using 1 lx = 1 lm/m2. 10. Power supply rejection ratio PSRR is defined as 20 log (ΔVDD (f)/ΔVO (f)) with VDD (f = 0) = 5 V and VO (f = 0) = 2 V.

TRS1722, TRS1755, TRS1766 HIGH SENSITIVITY REFLECTIVE COLOR SENSOR WITH LIGHTTOVOLTAGE CONVERTERS TAOS034 – NOVEMBER 2002 Copyright 2002, TAOS Inc. The LUMENOLOGY Company www.taosinc.com Electrical Characteristics at VDD = 5 V, TA = 25°C, RL = 10 kΩ (unless otherwise noted) (continued) Coupled (see Note 2) PARAMETER TEST CONDITIONS TRS1722 TRS1755 TRS1766 UNITPARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNIT IF LED forward current VO = 2 V, If = 2.5 mA, d = 1 mm (Note 11) 2.4 VO Output voltage If = 5 mA, d = 1 mm (Note 11) 2 V If = 0.25 mA, d = 1 mm (Note 11) 1.3 V Crosstalk If = 5 mA, no surface (see Note 12) 0 80 300 0 30 200 mVVox Crosstalk If = 1 mA, no surface (see Note 12) 0 130 500 mV NOTES: 11. Measured using Eastman Kodak neutral white test card having 90% diffuse reflectance located a distance from the front surface of the reflective sensors. Reference: Eastman Kodak catalog number #1257795. 12. Crosstalk is the output voltage measured with the indicated current on the LED and with no reflecting surface. Ambient light is excluded with a black box approximately 20 cm in each dimension. Switching Characteristics at VDD = 5 V, TA = 25°C, RL = 10 kΩ (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tr Output pulse rise time, 10% to 90% of final valueSee Note 13 and Figure 1 160 250 µs tf Output pulse fall time, 10% to 90% of final valueSee Note 13 and Figure 1 150 250 µs ts Output settling time to 1% of final value See Note 13 and Figure 1 330 µs Integrated noise voltage f = dc to 1 kHzEe = 0 200 µVrms f = 10 Hz Ee = 0 6 Vn Output noise voltage, rms f = 100 Hz Ee = 0 6 µV/√Hz rmsn g, f = 1 kHz Ee = 0 7 µ √ NOTE 13: Switching characteristics apply over the range VO = 0.1 V to 4.5 V.

Figure 10. Device Pictorial

0.40 MIN

NOTES: A. All linear dimensions are in millimeters. C. This drawing is subject to change without notice. Figure 11. Package Configuration

TRS1722, TRS1755, TRS1766 HIGH SENSITIVITY REFLECTIVE COLOR SENSOR WITH LIGHTTOVOLTAGE CONVERTERS TAOS034 – NOVEMBER 2002 The LUMENOLOGY Company Copyright 2002, TAOS Inc. www.taosinc.com 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. LUMENOLOGY is a registered trademark, and TAOS, the TAOS logo, and Texas Advanced Optoelectronic Solutions are trademarks of Texas Advanced Optoelectronic Solutions Incorporated.

TRS1722, TRS1755, TRS1766 HIGH SENSITIVITY REFLECTIVE COLOR SENSOR WITH LIGHTTOVOLTAGE CONVERTERS TAOS034 – NOVEMBER 2002 Copyright 2002, TAOS Inc. The LUMENOLOGY Company www.taosinc.com