The OPT210 is a photodetector consisting of a highperformance silicon photodiode and precision FETinputtransimpedance amplifier integrated on a singlemonolithic chip. Output is an analog voltage proportionalto light intensity.The large 0.09" x 0.09" photodiode is operated at lowbias voltage for low dark current and excellent linearity.A novel photodiode anode bootstrap circuit reducesthe effects of photodiode capacitance to extendbandwidth and reduces noise.The integrated combination of photodiode andtransimpedance amplifier on a single chip eliminatesthe problems commonly encountered with discretedesigns such as leakage current errors, noise pick-upand gain peaking due to stray capacitance.The OPT210 operates from ±2.25 to ±18V suppliesand quiescent current is only 2mA. Available in atransparent 8-pin DIP, 8-lead surface-mount and 5-pinSIP, it is specified for 0° to 70°C operation.
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