TSLB257 ETC | Alldatasheet
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TSLB257, TSLG257, TSLR257 HIGHSENSITIVITY COLOR LIGHTTOVOLTAGE CONVERTERS TAOS027B – MARCH 2002 The LUMENOLOGY Company Copyright 2002, TAOS Inc. www.taosinc.com Converts Light Intensity to Output Voltage Integral Color Filter in Blue, Green, or Red Monolithic Silicon IC Containing Photodiode, Operational Amplifier, and Feedback Components High Sensitivity Single Voltage Supply Operation Low Noise (200 µVrms Typ to 1 kHz) Rail-to-Rail Output High Power-Supply Rejection (35 dB at 1 kHz) Compact 3-Leaded Plastic Package
Description
The TSLB257, TSLG257, and TSLR257 are high-sensitivity low-noise light-to-voltage optical converters that incorporate onboard blue, green, and red optical filters, respectively. These devices combine a photodiode and a transimpedance amplifier on a single monolithic CMOS integrated circuit with a color filter over the photodiode. Output voltage is directly proportional to light intensity (irradiance) on the photodiode. Each device has a transimpedance gain of 320 MΩ with improved offset voltage stability and low power consumption, and is supplied in a 3-lead clear plastic sidelooker package with an integral lens. These devices are ideal for applications such as colorimetry, printing process control, display color correction, and selectively ambient light detection or rejection. Functional Block Diagram Voltage Output+ Terminal Functions TERMINAL DESCRIPTIONNAME NO. DESCRIPTION GND 1 Ground (substrate). All voltages are referenced to GND. OUT 3 Output voltage VDD 2 Supply voltage Texas Advanced Optoelectronic Solutions Inc.
800 Jupiter Road, Suite 205 Plano, TX 75074 (972) 673-0759
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TSLB257, TSLG257, TSLR257 HIGHSENSITIVITY COLOR LIGHTTOVOLTAGE CONVERTERS TAOS027B – MARCH 2002 Copyright 2002, TAOS Inc. The LUMENOLOGY Company www.taosinc.com 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 2.7 5.5 V Operating free-air temperature, TA 0 70 °C
TSLB257, TSLG257, TSLR257 HIGHSENSITIVITY COLOR LIGHTTOVOLTAGE CONVERTERS TAOS027B – MARCH 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) (see Notes 2 and 3) PARAMETER TEST CONDITIONS TSLB257 TSLG257 TSLR257 UNITPARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNIT VD Dark voltage Ee = 0 0 15 0 15 0 15 mV V Maximum output voltage VDD = 4.5 V, No Load 4.49 4.49 4.49 VVOM Maximum out ut voltage swing VDD = 4.5 V, RL = 10 kΩ 4 4.2 4 4.2 4 4.2 V Ee = 1.7 µW/cm 2, λp = 470 nm, Note 4 1.3 2 2.7 VO Output voltage Ee = 1.6 µW/cm 2, λp = 524 nm, Note 5 1.3 2 2.7 V Ee = 1.1 µW/cm 2, λp = 635 nm, Note 6 1.3 2 2.7 α VD Temperature coefficient of dark voltage (V D ) TA = 0°C to 70°C –15 –15 –15 µV/°C λp = 470 nm, see Notes 4 and 7 1.18 0.35 0.09 R Irradiance responsivity λp = 524 nm, see Notes 5 and 7 0.53 1.25 0.14 V/ (µW/R e Irradiance responsivityλp =565 nm, see Notes 7 and 8 0.09 1.17 0.36 (µW/ cm 2) λp = 635 nm, see Notes 6 and 7 0.05 0.14 1.82 λp = 470 nm, see Notes 4 and 7 1.57 0.47 0.12 R Illuminance responsivity λp = 524 nm, see Notes 5 and 7 0.10 0.24 0.027 V/IxR V Illuminance responsivityλp = 565 nm, see Notes 7 and 8 0.015 0.20 0.06 V/Ix λp = 635 nm, see Notes 6 and 7 0.033 0.093 1.21 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.
NOTE 11: Switching characteristics apply over the range VO = 0.1 V to 4.5 V. NOTES: A. The input irradiance is supplied by a pulsed light-emitting diode with the following characteristics: tr < 1 µs, tf < 1 µs. B. The output waveform is monitored on an oscilloscope with the following characteristics: tr < 100 ns, Zi ≥ 1 MΩ , Ci ≤ 20 pF. Figure 1. Switching Times
The TSLx257 is implemented in a clear 3-leaded package with a molded focusing lens. Figure 6. Package Configuration NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. All dimensions apply before solder dip. E. Index of refraction of clear plastic is 1.55.
TSLB257, TSLG257, TSLR257 HIGHSENSITIVITY COLOR LIGHTTOVOLTAGE CONVERTERS TAOS027B – MARCH 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.
TSLB257, TSLG257, TSLR257 HIGHSENSITIVITY COLOR LIGHTTOVOLTAGE CONVERTERS TAOS027B – MARCH 2002 Copyright 2002, TAOS Inc. The LUMENOLOGY Company www.taosinc.com