TGA4805-EPU

Advance Product Information May 23, 2002 10 GB/s Differential Transimpedance Amplifier Key Features TGA4805-EPU 0.25 um pHEMT Technology Frequency Range; 30 KHz to > 11GHz 1000 Ω Differential Transimpedance Average Input Eq. Noise: 9 pA / √ Hz Single Supply Operation: +5V @ 45 mA Chip Size: 1.1 x 0.91 mm Primary Applications Description The TriQuint TGA4805-EPU is a wideband transimpedance amplifier with differential outputs that provides 500 Ohm single-ended transimpedance into a 50 Ohm termination (1000 Ohm differential into a 100 Ohm termination). Typical output return loss is > 15 dB and the average equivalent input noise current is 9 pA/ √ Hz (1 GHz to 10 GHz). Typical 3dB BW is 30 KHz to 11GHz with 0.2 pF of photodiode capacitance. The TGA4805 operates from a single +5V supply typically dissipating 225mW of DC power. The device is backside grounded with vias and requires no grounding bond wires. The TGA4805 requires off-chip decoupling and the RF ports are DC coupled. Each device is 100% RF tested on-wafer to ensure performance compliance. The device is available in die form. OC192/STM-64 Fiber-Optic Systems Typical Measured Performance 63 Transimpedance (dB-Ohm) 0 -6 -9 -12 -15 -18 -21 CPD = 0.2 pF RPD = 10 Ohm 1 3 5 7 9 11 13 15 Output Return Loss (dB) www.DataSheet4U.com 60 57 54 51 48 45 42 39 36 33 Frequency (GHz) Differential TZ (dB-Ohm) S22 Inverting Output S22 Noninverting Output -3 -24 -27 -30 60 Group Delay Ripple (ps) 50 40 30 20 10...