This book discusses new possibilities and trends in analog circuit design, including applications in communication, measurement and RF systems. The authors combine the main features for circuit design with actual circuit realizations and demonstrate several performance limitations with example circuits.

This book tackles challenges for the design of analog integrated circuits that operate from ultra-low power supply voltages (down to 0.5V). Coverage demonstrates the signal processing circuit and circuit biasing approaches through the design of operational transconductance amplifiers (OTAs). These amplifiers are then used to build analog system functions including continuous time filter and a sample and hold amplifier.

Today digital signal processing systems use advanced CMOS technologies requiring the analog-to-digital converter to be implemented in the same (digital) technology. Such an implementation requires special circuit techniques. Furthermore the susceptibility of converters to ground bounce or digital noise is an important design criterion. In this part different converters and conversion techniques are described that are optimized for receiver applications. Part II, Sensor and Actuator Interfaces, interfaces for sensors and actuators shape the gates through which information is acquired from the real world into digital information systems, and vice versa. The interfaces should include analog signal conditioning, analog-to-digital conversion, digital bus interfaces and data-acquisition networks. To simplify the use of data-acquisition systems additional features should be incorporated, like self-test, and calibration

This book describes several techniques to address variation-related design challenges for analog blocks in mixed-signal systems-on-chip. The methods presented are results from recent research works involving receiver front-end circuits, baseband filter linearization, and data conversion. These circuit-level techniques are described, with their relationships to emerging system-level calibration approaches, to tune the performances of analog circuits with digital assistance or control. Coverage also includes a strategy to utilize on-chip temperature sensors to measure the signal power and linearity characteristics of analog/RF circuits, as demonstrated by test chip measurements. Describes a variety of variation-tolerant analog circuit design examples, including from RF front-ends, high-performance ADCs and baseband filters; Includes built-in testing techniques, linked to current industrial trends; Balances digitally-assisted performance tuning with analog performance tuning and mismatch reduction approaches; Describes theoretical concepts as well as experimental results for test chips designed with variation-aware techniques.

Switched-Current Signal Processing and A/D Conversion Circuits: Design and Implementation describes the design and implementation of switched-current (SI) circuits with emphasis on signal processing and data-conversion applications. The work includes theoretical analysis, high-level and circuit-level simulation results as well as measurement results from a few of the author's circuit implementations. An extensive overview of the SI field of research is also given. The book contains an extensive overview of the switched-current field of research, and can therefore be used as a quick-reference to the field. The description of each design example has been organized to describe the entire design flow from system level design and simulation, to circuit simulation, layout and measurement as accurately as possible. Thus it is possible to follow each step in the design process. Switched-Current Signal Processing and A/D Conversion Circuits: Design and Implementation is an invaluable reference for researchers and circuit designers working with one-chip mixed-signal system solutions, and low-voltage analog CMOS design. It will also be appreciated by anyone requiring a quick overview of what has been done in the SI field.

Analog Signal Processing brings together in one place important contributions and state-of-the-art research results in this rapidly advancing area. Analog Signal Processing serves as an excellent reference, providing insight into some of the most important issues in the field.

Die Lösung der meisten Designprobleme bei analogen Schaltkreisen erfordert ein hohes Maß an Kreativität. Die Autoren dieses bahnbrechenden Leitfadens zeigen auf, daß die Lösung für fast alle analogen Signalverarbeitungsprobleme nicht notwendigerweise schwierig sein muß. In einem originellen, designorientierten Ansatz erfährt der Leser in fünf Schritten, wie er Problemstellungen mit Hilfe von integrierten Standardschaltkreisen als Bausatz löst. Anders als andere Autoren, behandeln Pallás-Areny und Webster Designprobleme zunächst aus funktionaler Sicht und entwickeln dann mögliche Lösungen auf der Basis vorhandener integrierter Schaltkreise, wobei der Schwerpunkt auf der Schaltkreisleistung liegt und nicht auf der inneren Struktur. In fünf Schritten geht es von der Signalklassifiktaion, der Definition gewünschter Funktionen über die Beschreibung analoger Hauptumsetzer hin zu Fehlerklassifikation und -analyse. Mit 90 praktischen Beispielen und über 130 Übungsaufgaben. Ein hilfreiches Nachschlagewerk für die Praxis und ein Lehrbuch für fortgeschrittene Studenten. (02/99)