This paper reviews the design of analog filters at low supply voltage. In particular, the main focus is on Switched Capacitor and gm-C type filters because, at the present time, they have the greatest commercial importance. SC implementations are discussed in the context of low frequency high precision applications while gm-C implementations are discussed in the context of high frequency medium/low precision applications. Both fundamental and practical limitations to the achievable dynamic range at low supply voltage are explained. The paper reviews well established circuit and architectural techniques as well as some promising new ones that might result in performance improvements in the future. © 1995 IEEE.
Castello, R., Montecchi, F., Rezzi, F., Baschirotto, A. (1995). Low-Voltage Analog Filters. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I. FUNDAMENTAL THEORY AND APPLICATIONS, 42(11), 827-840 [10.1109/81.477181].
Low-Voltage Analog Filters
BASCHIROTTO, ANDREA
1995
Abstract
This paper reviews the design of analog filters at low supply voltage. In particular, the main focus is on Switched Capacitor and gm-C type filters because, at the present time, they have the greatest commercial importance. SC implementations are discussed in the context of low frequency high precision applications while gm-C implementations are discussed in the context of high frequency medium/low precision applications. Both fundamental and practical limitations to the achievable dynamic range at low supply voltage are explained. The paper reviews well established circuit and architectural techniques as well as some promising new ones that might result in performance improvements in the future. © 1995 IEEE.
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