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TIA4C-5633 and TIA4C-5652 - 56 Gb/s Quad TIA  The TIA4C-56xx is a versatile High-Speed 4 channel Transimpedance Amplifier for data rates up to 56 Gb/s to match new 100GbE applications. Key features are: - 4 independent ampl. Channels,
- single-ended and differential I/O operation,
- very high small signal gain,
- small signal and limiting operation,
- high cut-off frequency,
- low noise,
- adjustable input offset,
- output sense for offset control,
- tunable frequency response,
- dc and ac coupled operation,
- adjustable output voltage swing,
- single supply voltage.
Each channel of the TIA4C-56xx consists of a fully symmetrical differential input buffer. This allows differential as well as single ended drive and is optimized for 50 ? line termination. For applications which require adjustable input bias or compensation of DC input currents (e.g. photodiodes) the TIA4C-5633 allows to adjust the bias input current for each channel independently. This feature can e.g. be used for offset cancellation, pulse shaping, duty cycle adjustment or vertical sampling-point adjustment. Each channel exhibits a fully symmetrical differential output buffer which provides either one differential output signal or two single ended output signals. The output amplitude is set to typ. 500 mVpp (differential signal) and can be increased to about 1Vpp by using the output swing adjustment pin. Package The TIA4C-56xx is available as bare die or as ruggedized module equipped with K-Connectors. Other connector types upon request. Specification data Parameter
| TIA4C-5633 | TIA4C-5652
| | Max. Data Rate | 56 Gb/s | 56 Gb/s | Supply | -3.1V ... -3.5V (single supply) | -4.5V ... -5.5V (single supply) | | Power Consumption | 320mA @ -3.3V | 325mA @ -5.2V | S11, S22 (f < 20 GHz)
| -12 dB | -12 dB | | Gain / Transimpedance | 38 dB / 4 k? | 40 dB / 5 K? | | Input voltage range | 5 mVpp - 1 Vpp | 5 mVpp - 1 Vpp | Cut off frequency
| 35 Ghz (adjustable) | 30 Ghz (adjustable) | Input related noise
| < 25 pA / ?(Hz)
| < 30 pA / ?(Hz) |
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