By Heimo Uhrmann, Robert Kolm, Horst Zimmermann
Ranging from the fundamentals of analog filters and the terrible transistor features in nanometer CMOS 10 high-performance analog filters built by way of the authors in a hundred and twenty nm and sixty five nm CMOS are defined commonly. between them are gm-C filters, current-mode filters, and lively filters for system-on-chip awareness for Bluetooth, WCDMA, UWB, DVB-H, and LTE purposes. For the energetic filters numerous operational amplifier designs are defined. The ebook, in addition, includes a overview of the latest nation of analysis on low-voltage low-power analog filters. to hide the subject of the publication comprehensively, linearization concerns and dimension equipment for the characterization of complex analog filters are brought additionally. a variety of complex illustrations advertise a simple comprehension. This ebook might be of price to engineers and researchers in in addition to scientists and Ph.D scholars at universities. The e-book can also be recommendable to graduate scholars specializing on nanoelectronics, microelectronics or circuit engineering.
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Additional resources for Analog Filters in Nanometer CMOS (Springer Series in Advanced Microelectronics)
The maximum input signal current at 1 % THD is 120 µA, the DR is 53 dB. In  a 6th-order current-mode filter based on cross-coupled current mirrors in a 2 µm CMOS technology is presented. 3 V, has a cut-off frequency of 10 MHz and a DR of 52 dB. 2 µm CMOS process is described. 5 V and has a DR of 67 dB. 1 summarizes the state-of-the-art. 3 State-of-the-Art 45 46 5 Gm -C Filters Fig. 4 Requirements for the Implemented Gm -C Filters and Applications in Ultra-Wideband Ultra-wideband (UWB) is a communication technology which can be used for shortrange high-bandwidth communications.
Under the assumption that 48 5 Gm -C Filters Fig. 8 2nd-order filter all transconductances in the filter circuit in Fig. 3). As can be seen clearly, the excess phase increases the quality factor. 25° at maximum is allowed. 1 Realized Gm -C Filter 1 A 3rd-order filter was realized by a cascade connection of a second-order filter and a first-order filter . The filter architecture is shown in Fig. 9. The transconductors were realized in the same way as described in Sect. 6 (the representation is shown in Fig.
Secondly, a Gm -C filter consists of several OTAs which means that the distortions increase with the number of OTAs. 16) where n is the number of OTAs. When a Gm -C filter consists of 4 OTAs, the HD3 of the filter is 12 dB worse than the HD3 of one OTA. 1 summarizes the distortions of the presented OTAs and gives an estimation for the distortions, when these OTAs are applied to a Gm -C filter which consists of 4 OTAs. In  another interesting OTA architecture is discussed which is based on a super-source-follower configuration.
Analog Filters in Nanometer CMOS (Springer Series in Advanced Microelectronics) by Heimo Uhrmann, Robert Kolm, Horst Zimmermann