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In this paper (based on our previous paper at ESSCIRC 2004, "A 2.4 GHz-Bandwidth OEIC with Voltage-Up-Converter," but new results for 4 Gb/s and 5 Gb/s have been added), an optoelectronic integrated circuit (OEIC) with an integrated voltage-up-converter (VUC) to enhance the frequency response of an integrated pin photodiode is presented. With the VUC a voltage of 11 V is generated on the chip without any additional external components. Thus, for a single-supply environment of 5 V the bandwidth of the OEIC is increased from 1.5 to 2.4 GHz. For data rates of 1, 3, 4, and 5 Gb/s at a bit error rate of 10-9, sensitivities of -29.3, -24.3, -22.9, and -20.5 dBm, respectively, were measured at a wavelength of 660 nm. For the implementation of the OEIC a modified 0.6-μm silicon BiCMOS technology with fT=25 GHz is used.