Download e-book for kindle: Analog Filters in Nanometer CMOS (Springer Series in by Heimo Uhrmann, Robert Kolm, Horst Zimmermann

By Heimo Uhrmann, Robert Kolm, Horst Zimmermann

ISBN-10: 3642380123

ISBN-13: 9783642380129

Ranging from the fundamentals of analog filters and the negative 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 energetic filters for system-on-chip cognizance for Bluetooth, WCDMA, UWB, DVB-H, and LTE purposes. For the lively filters numerous operational amplifier designs are defined. The e-book, moreover, features 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 size tools for the characterization of complex analog filters are brought furthermore. a variety of intricate illustrations advertise a simple comprehension. This booklet may be of price to engineers and researchers in in addition to scientists and Ph.D scholars at universities. The booklet can be recommendable to graduate scholars specializing on nanoelectronics, microelectronics or circuit engineering.

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Extra resources for Analog Filters in Nanometer CMOS (Springer Series in Advanced Microelectronics)

Example text

In [20] a source-follower-based filter cell is presented. The 2nd-order filter, shown in Fig. 3, consists of two cross coupled source followers in a positive feedback configuration. In this circuit, low output impedance is achieved and no common-mode feedback (CMFB) is necessary. 18 µm CMOS and is a 4th-order 10 MHz filter for WLAN application. 25 mA current consumption. 44 5 Gm -C Filters Fig. 18 µm CMOS is presented. 6 mW at a supply voltage of 1 V. 32 Vpp at 1 % THD. In [35] two 4th-order Bessel low-pass filters that cover various wireless standards are described.

To obtain an operation point the current through the transistor M2 is the difference between I1 and I2 . Therefor, I1 > I2 is required for proper operation. 17) it is obvious that the voltage gain is near unity if the gain of the loop consisting of the transistors M1 and M2 is high (gm2 r01 1). The disadvantage of this super-source configuration is that the negative feedback loop through M2 can become instable when a capacitive load is driven. When two super-source-followers 34 4 Operational Transconductance Amplifiers (OTAs) Fig.

3) where SFDR is the spurious free dynamic range, IIP3 is the 3rd-order input intercept-point and A is the area of the filter. In general, the SFDR represents the maximum relative level that a circuit can tolerate while producing an acceptable signal quality from a small input level. The lower end of this input level is the noise level (see Fig. 1). The IP3 (3rd-order intercept point) is obtained when the 3rd-order intermodulation reaches the main signal. The IIP3 (input intercept point) is the IP3 referred to the input, the OIP3 (output intercept point) is referred to the output.

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Analog Filters in Nanometer CMOS (Springer Series in Advanced Microelectronics) by Heimo Uhrmann, Robert Kolm, Horst Zimmermann

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