10 Gbps Transimpedance Amplifier TA205C - Euvis Inc.
10 Gbps Transimpedance Amplifier TA205C - Euvis Inc.
10 Gbps Transimpedance Amplifier TA205C - Euvis Inc.
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<strong>Euvis</strong><strong>10</strong> <strong>Gbps</strong> <strong>Transimpedance</strong> <strong>Amplifier</strong>, <strong>TA205C</strong>APPLICATIONTo set the reference voltage (Vref) automatically and ensure proper low cutoff frequency,an external capacitor of 560pF or larger is recommended. A reference voltage isestablished through the servo circuitry in a feedback loop to maintain proper output DCoffset voltage and data crossover points. Due to high internal gain of the amplifier,robust ground/power supplies, bond wire control, and electrical isolation between inputand output ports of the die are all of paramount importance to prevent signal degradationor even oscillation. Please consult <strong>Euvis</strong> technical support for related issues.PD bias (Vpd)Power Supply (Vcci/Vcc)500ΩInVrefDriverOUTPOUTN560pFVsvoServoBONDING REFERENCEBond wire inductance of 700pH is recommended for photodiode to TIA input connection;300pH or less each of inductance is recommended for other bond wires.300pH300pHGNDOUTP GND OUTN GNDGNDVCC560pFVSVOVREFVCCIto power supplyGNDGND IN GNDVPDFILto PD bias0.7nHAnodeCathodePD<strong>TA205C</strong>_DS_A45
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