MAX3260

Supply Voltage, V_CCA, V_CCB to GND ..................................0V, 6V
Input Current, I_IN, FILTER ..................................................1.5mA
Input Bias Voltage, V_IN ......................................................0V, 6V
Output Voltage, V_OUT ........................................................0V, 6V
Operating Junction Temperature Range..........-55°C to +150°C
Processing Temperature.................................................+400°C

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 in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

The MAX3260 high-speed transimpedance amplifier is ideally suited for Fibre Channel and SDH/SONET applications.An extended dynamic range makes the MAX3260 useful in optical receiver systems with as much as 25dB of input signal range. A DC-restore feedback network prevents amplifier saturation in all Fibre Channel applications by allowing input currents as high as 900A to be amplified linearly. To reduce noise, the restore function is disabled at low input levels, allowing detection of signals as small as 2.4A with a signal-tonoise ratio of 10.

The filter output (FILTER) of the MAX3260 provides a convenient voltage source for a photodiode, especially when the circuit will be placed into a TO-style header with the photodiode. The filter output is connected to V_CC through a 1k on-chip resistor. In combination with a bypass capacitor, the filter function significantly reduces the amount of noise present at the cathode of the photodiode.

The MAX3260 operates from a single +5V supply consuming only 115mW of power when the output is AC coupled. With 50 output termination, it consumes less than 300mW of power.