Feedforward spectral shaping technique for clock-jitter induced errors in digital-to-analogue converters Academic Article

abstract

• A simple feedforward spectral shaping technique for the pulsewidth jitter induced errors in digital-to-analogue converters (DACs) is presented. The proposed technique features a feedforward combination of the conventional rectangular-pulse switched-current DAC and a discrete-time switched-capacitor DAC to achieve spectral shaping for the jitter induced error. The benefit of this hybrid DAC solution using error specral shaping is illustrated in the context of feedback DACs used in continuous-time modulators. Simulation results show that the jitter tolerance of the proposed DAC solution is equivalent to that of the commonly used jitter-tolerant exponentially- decaying waveform switched-capacitor-resistor DAC structure, but at much more relaxed slew-rate requirement on the op-amp used in the DAC load circuit, which translates into significant power savings. 2011 The Institution of Engineering and Technology.

authors

• Hoyos, Sebastian

published proceedings

• ELECTRONICS LETTERS

author list (cited authors)

• Saad, R., & Hoyos, S.

citation count

• 0

complete list of authors

• Saad, R||Hoyos, S

publication date

• February 2011

publisher

• Institution of Engineering and Technology (IET)  Publisher

published in

• Electronics Letters  Journal

keywords

• 40 Engineering
• 4007 Control Engineering, Mechatronics And Robotics

Digital Object Identifier (DOI)

• 10.1049/el.2010.3374

start page

• 171

end page

• U655

volume

• 47

issue

• 3

URL

• http%3A%2F%2Fdx.doi.org%2F10.1049%2Fel.2010.3374