PHS6905

The PHS6905 is a high-speed transimpeadance GaAs preamplifier for fiber optic system. The preamp transform small current signal received by photodiode into voltage signal. PHS6905's power supply voltage is -5.2 V.It has four unique features: The first one is transimpedance is 800 . The second one is band width of 2.4 GHz with input capacitance of 1 pF.The third one is equivalent input noise current is 25 pA/Hz.The last one is single power supply of -5.2 V.

There are some absolute maximum ratings about PHS6905.Supply voltage(Vss) is +0.5 V to +7.5 V. Input current(Iin) is 1mA.  Supply current(Iss) is 40 mA. Power dissipation(Pt) is 0.2 W. Storage temperature(Tstg) is -65 to +150. Operating temperature(Ta) is -10 to +80.Besides, there are also some some recommended operaitonal conditions.Supply voltage(Vss) is -4.94 V min, -5.20 V typ and -5.46 V max. Input current(Iin) is 200 uAp-p min .Peaking voltage(Vp) is -2.00 V typ when Cin is 1 pF.Then, there are also some electrical characteristics about it.DC characteristics: Output voltage(Vout) is -1.67 V typ (Vin open).Power supply current(Iss) is 20 mA typ. AC characteristics: Trans-impedance(Zt) is 800 ohms.Band width(fB) is 2.4 GHz typ when Cin is 1.0 pF. Equivalent input noise current(In) is 25pA/Hz typ.Maximum input current(ILmax) is 200 uAp-p typ.

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