Digest of Technical Papers. 2005 Symposium on VLSI Circuits, 2005.
DOI: 10.1109/vlsic.2005.1469348
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Managing leakage in charge-based analog circuits with low-V/sub TH/ transistors by analog T-switch (AT-switch) and super cut-off CMOS

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Cited by 27 publications
(37 citation statements)
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“…Utilizing advanced switches developed to date, the switch overdriving problem can simply be alleviated. Low-VTH switch [8,14], gate-boosted [15][16] or boot-strapped switches [17] are several examples of such modern switches. Energy harvesting and biomedical implant systems are two applications where ultra low-voltage circuit design is compulsory and highly demanding.…”
Section: Low-voltage Compatibilitymentioning
confidence: 99%
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“…Utilizing advanced switches developed to date, the switch overdriving problem can simply be alleviated. Low-VTH switch [8,14], gate-boosted [15][16] or boot-strapped switches [17] are several examples of such modern switches. Energy harvesting and biomedical implant systems are two applications where ultra low-voltage circuit design is compulsory and highly demanding.…”
Section: Low-voltage Compatibilitymentioning
confidence: 99%
“…A 0.5 V fully passive modulator was presented in [1] based on the design in [3] using a charge-redistributed gain-boosted passive filter in the second stage, a body-driven gain-enhanced preamplifier prior to the comparator, and a low-voltage comparator circuit. The switch overdrive problem was mitigated by low-VTH transistors while the non-linear sub-VTH leakage current of the critical switches was suppressed by an analog T-switch scheme [14]. The modulator achieves 71 dB peak signal-to-noise-and-distortion (SNDR) from a supply voltage of 0.5 V, while dissipating only 250 nW power.…”
Section: Low-voltage Compatibilitymentioning
confidence: 99%
“…The experimental results provided in [14] and [33] show that with the use of the AT-switch the harmonic distortion seen by the conventional circuit due to the nonlinear leakage current of low V th is greatly suppressed. The signal-to-noise and distortion ratio (SNDR) by analog T-switch exceeds that of the conventional switch by 8.1dB.…”
Section: 5v Sc Integrator Using Low V Th Transistorsmentioning
confidence: 99%
“…However, this will lead to an unacceptable increase in the ON-resistance of the switch. The analog-T switch (AT-switch) proposed in [12] helps to suppress the subthreshold-leakage in switches that uses low-V TH devices. In [12], the analog ground is set to an intermediate voltage (V DD /2) which causes a reverse V GS voltage during the OFF state.…”
Section: Low Overdrive For Switchesmentioning
confidence: 99%