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The OPT301 is an opto-electronic integrated circuit containing a photodiode and transimpedance amplifier on a single dielectrically isolated chip. The transimpedance amplifier consists of a precision FETinput op amp and an on-chip metal film resistor. The 0.09 x 0.09 inch photodiode is operated at zero bias for excellent linearity and low dark current.
The integrated combination of photodiode and transimpedance amplifier on a single chip eliminates the problems commonly encountered in discrete designs such as leakage current errors, noise pick-up and gain peaking due to stray capacitance.
The OPT301 operates over a wide supply range (±2.25 to ±18V) and supply current is only 400mA. It is packaged in a hermetic TO-99 metal package with a glass window, and is specified for the 40 to 85 temperature range.
OPT301 Maximum Ratings
Supply Voltage ................................................................................... ±18V Input Voltage Range (Common Pin) .................................................... . ±VS Output Short-Circuit (to ground) ............................................... Continuous Operating Temperature .................................................... 55 to +125 Storage Temperature ....................................................... 55 to +125 Junction Temperature ...................................................................... +125 Lead Temperature (soldering, 10s) ................................................. +300
OPT301 Features
·PHOTODIODE SIZE: 0.090 x 0.090 inch (2.29 x 2.29mm) ·1MW FEEDBACK RESISTOR ·HIGH RESPONSIVITY: 0.47A/W (650nm) ·IMPROVED UV RESPONSE ·LOW DARK ERRORS: 2mV ·BANDWIDTH: 4kHz ·WIDE SUPPLY RANGE: ±2.25 to ±18V ·LOW QUIESCENT CURRENT: 400mA ·HERMETIC TO-99