Sensitivity-enhanced OEIC with capacitance multiplier for reduced lower-cutoff frequency

A BiCMOS optoelectronic integrated circuit for the use in future optical storage systems is presented. In this approach a PIN photodiode is integrated together with the transimpedance amplifier (TIA). The amplifier consists of two branches, connected via common current source. Thereby it is possible to realize differential outputs and to double the overall transimpedance of the circuit. In order to adhere this doubling effect down to deep frequencies, we, in addition, present an active capacitance multiplier which is used to realize high capacitance values with a minimum of area consumption. The measurement results of the OEIC showed a differential transimpedance of 84k/spl Omega/ and a -3dB bandwidth of 500MHz.

[1]  K. Nakao,et al.  Si-OEIC with a built-in PIN-photodiode , 1995 .

[2]  Horst Zimmermann,et al.  High-sensitivity BiCMOS OEIC for optical storage systems , 2003 .

[3]  Mohammed Ismail,et al.  Adaptive Miller capacitor multiplier for compact on-chip PLL filter , 2003 .

[4]  G.W. de Jong,et al.  A DC-to-250 MHz current pre-amplifier with integrated photo-diodes in standard BiCMOS, for optical-storage systems , 2002, 2002 IEEE International Solid-State Circuits Conference. Digest of Technical Papers (Cat. No.02CH37315).

[5]  K. Kieschnick,et al.  Advanced CMOS and BiCMOS photonic receiver ICs , 1999, Proceedings of the 25th European Solid-State Circuits Conference.

[6]  Nai-Heng Tseng,et al.  CMOS transimpedance amplifier for DVD applications , 2001, ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196).