CXA1685M

CXA1685M High-Speed Transimpedance Amplifier Description CXA1685M is a low noise transimpedance amplifier, particularly suitable for fiber-optic system. CXA1685M is fabricated using high-speed bipolar process. Features High transimpedance: 8 pin SOP (Plastic) Q 11.2kΩ (Typ.) Q 10.8kΩ (Typ.) Wide band width (–3dB): Q 177MHz (Typ.) Q 157MHz (Typ.) Maximum input current: 1mA Low noise: 1.7pA/√ Hz (Typ.) Applications SONET/SDH: 155Mb/s Fiber channel: 133Mb/s FDDI: 125Mb/s Absolute Maximum Ratings Supply voltage VCC – VEE –0.3 to +7.0 V Minimum input voltage VIN VEE V Input current IIN –1 to +1 mA Output current (Q/Q) (Continuous) IO 0 to 50 mA (Surge) 0 to 100 mA Storage temperature Tstg –65 to +150 °C Recommended Operating Conditions DC power supply voltage VCC – VEE 4.75 to 5.46 V Operating ambient temperature Ta 0 to +85 °C Structure Bipolar silicon monolithic IC Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits. –1– E94X22A8Y CXA1685M Block Diagram and Pin Assignment VCC 5 ZT 4 VCCA IN 6 3 Q C 7 2 Q VEES 8 1 VEEDA Electrical Characteristics DC Electrical Characteristics Item Supply current Transimpe...