TY - GEN
T1 - On the design of low-noise, giga-hertz bandwidth preamplifiers for optical receiver applications
AU - Park, Sung M.
AU - Papavassiliou, C.
N1 - Publisher Copyright:
© 1999 IEEE.
PY - 1999
Y1 - 1999
N2 - The noise characteristics of TIA (transimpedance amplifier) for optical receiver applications is conventionally described by equivalent input noise current spectral density, rather than noise figure (NF). However, since optical receivers consist of several blocks such as preamplifier, wideband amplifiers, variable gain amplifier and decision circuit, NF can be a useful tool to determine the noise characteristics of the whole optical receiver. In this paper, NF of a TIA (preamplifier) is described by using gm and the bandwidth to cut-off frequency ratio B/fT, showing that NF of TIA degrades quadratically with increasing bandwidth. With a given technology and the noise specification of the whole optical receiver, the maximum achievable bandwidth is obtained, facilitating the design of the TIA. As an example, a common-source TIA was designed and simulated with 0.6 μm AMS CMOS technology, showing a close match with the predicted results.
AB - The noise characteristics of TIA (transimpedance amplifier) for optical receiver applications is conventionally described by equivalent input noise current spectral density, rather than noise figure (NF). However, since optical receivers consist of several blocks such as preamplifier, wideband amplifiers, variable gain amplifier and decision circuit, NF can be a useful tool to determine the noise characteristics of the whole optical receiver. In this paper, NF of a TIA (preamplifier) is described by using gm and the bandwidth to cut-off frequency ratio B/fT, showing that NF of TIA degrades quadratically with increasing bandwidth. With a given technology and the noise specification of the whole optical receiver, the maximum achievable bandwidth is obtained, facilitating the design of the TIA. As an example, a common-source TIA was designed and simulated with 0.6 μm AMS CMOS technology, showing a close match with the predicted results.
UR - http://www.scopus.com/inward/record.url?scp=0038033635&partnerID=8YFLogxK
U2 - 10.1109/ICECS.1999.813226
DO - 10.1109/ICECS.1999.813226
M3 - Conference contribution
AN - SCOPUS:0038033635
T3 - Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems
SP - 785
EP - 788
BT - Proceedings of ICECS 1999 - 6th IEEE International Conference on Electronics, Circuits and Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 6th IEEE International Conference on Electronics, Circuits and Systems, ICECS 1999
Y2 - 5 September 1999 through 8 September 1999
ER -