Abstract
SNR gain for programmable amplifiers is analyzed in this paper. The results show that programmable amplifier with amplifier-array (PACAA) has higher SNR gain compared with programmable amplifier with single Op amp. SNR gain of PACAA is over 20dB and direct proportional to the number of amplifiers connected in serial. The input signal of the amplifier is divided into two parts according to the frequency, one of which is signal if its frequency is below a certain value and another is noise if its frequency is over the certain value. To the same design requirements, PACAA not only has good SNR gain but also reduces demands for the 0dB bandwidths of Op amps. However, the integrated circuits with PACAA will increase the area of the dice. It is needed to consider how to obtain higher SNR gain and minimize the chip size.
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Li, Z., Xiu, L., Liu, J., Lv, C., Li, Q., Luo, L. (2011). Study on the Gain of SNR for Programmable Amplifiers. In: Lee, J. (eds) Advanced Electrical and Electronics Engineering. Lecture Notes in Electrical Engineering, vol 87. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-19712-3_41
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DOI: https://doi.org/10.1007/978-3-642-19712-3_41
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-19711-6
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