Direct analysis and synthesis of multiphase switched-current networks using signal-flow graphs

Helfenstein, M.; Muralt, Arnold; Moschytz, G.S.

doi:10.1002/(sici)1097-007x(199805/06)26:3<253::aid-cta8>3.0.co;2-a

Cited by 3 publications

(2 citation statements)

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“…In [3] we presented a by-inspection method for the analysis and synthesis of switched-current circuits using 0-7803-5482-6/99/$10.00 02000 IEEE signal-flow graph (SFG) techniques. This method will now be used to derive two single-ended integrators operating at double speed, i.e., a backward-difference (bd) and forwarddifference (fd) discrete-time integrator.…”

Section: Single-ended Ds Fd and Bd Integratorsmentioning

confidence: 99%

“…6, the first integrator with Vint, as memory node behaves as an fd-type integrator, and the second integrator with Vinr2 as its memory node needs fd and bd capabilities. Following the procedure described in [3] and using the derived integrators leads directly to the SFG of a D-DS ACE-type biquad. Hence, a mapping into a transistor circuit is straightforward.…”

Section: -647mentioning

confidence: 99%

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Switched-current biquad using differential, double-sampling, forward/backward difference integrators

Helfenstein¹,

Curty²,

Moschytz³

2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings (IEEE Cat No

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A new switched-current integrator which accomplishes forward and backward difference integration and achieves double-sampling capabilities is described. The signal-flow graphs (SFGs) of several double-sampling integrators are derived and mapped into transistor circuits. Furthermore, as an example, a biquad based on an exact design and operating in differential and double-sampling mode is described and simulated. It is shown that the pole sensitivity of this biquad is reduced by a factor of 2 and the coefficient spread by a factor of 3 when compared with a bilinearly transformed reference filter.

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Section: Single-ended Ds Fd and Bd Integratorsmentioning

confidence: 99%

Section: -647mentioning

confidence: 99%