Analog integrated filter compilation

Henderson, Robert K.; Ping, Li; Sewell, J.I.

doi:10.1007/bf01239362

Cited by 3 publications

(2 citation statements)

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“…Synthesis tools are widely employed for designing continuous-time and switched capacitor filters [16]. Filter synthesis tools include the following steps [16]: 1) approximation of the overall transfer function; 2) decomposition of the transfer function into a sequence of cascaded, low-order stages (such as biquad, ladder, etc. ); 3) mapping the stages to given circuit implementations; 4) computing the circuit parameters to meet imposed specifications.…”

Section: Related Workmentioning

confidence: 99%

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Exploration-based high-level synthesis of linear analog systems operating at low/medium frequencies

Doboli

Vemuri

2003

IEEE Trans. Comput.-Aided Des. Integr. Circuits Syst.

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This paper presents a methodology for high-level synthesis of continuous-time linear analog systems. Synthesis results are architectures of op-amps, sized resistors and capacitors such that their ac behavior and total silicon area are optimized. Bounds for op-amp dc gain, unity-gain frequency, input, and output impedances are found as a byproduct of synthesis. Subsequently, a circuit synthesis tool can be used to synthesize the op-amps of an architecture. The paper details the architecture generation technique. Architecture generation produces alternative architectures for a system specification using the tabu search heuristic. Its main advantages over traditional methods is that it is application independent, does not require a library of block connection patterns, and is simple to implement. The paper also discusses the hierarchical, two-step parameter optimization that guides architecture generation. Experiments showed that linear analog systems operating at low/medium frequencies (like telecommunication systems and filters) can be synthesized in a reasonably long time and with reduced effort.

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Section: Related Workmentioning

confidence: 99%

“…The very large number of possible decompositions is handled by applying designer knowledge to prune low-quality decomposition alternatives. However, in the general case, it is difficult to relate different decompositions [16]. Optimal implementations are proposed for loworder stages using different implementation styles.…”

Section: Related Workmentioning

confidence: 99%