| 摘要 |
An optical receiver circuit comprising a plurality of PIN diodes, each associated with a dedicated element transimpedance amplifier, the outputs of the element transimpedance amplifiers being connected to a summing amplifier which sums the voltages output from t he element transimpedance amplifiers. The circuit of the invention provides the same output voltage value as a single large PIN diode having an active area comparable to the sum of the active areas of the smaller PIN diodes, and thus has the same high sensitivity as the single lar ge PIN diode but a much wider bandwidth.
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