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Time-interleaved track and hold

An AC voltage and transistor technology, applied in the field of track and hold circuits, can solve the problems of large power supply noise, increased power consumption, and large power consumption, and achieve the effects of halving the impact of threshold voltage changes, small jitter, and low delay

Active Publication Date: 2010-08-11
NXP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although scaling of these transistors reduces this variation, power dissipation increases and the size even becomes impractical for high performance applications
Power dissipation may become excessive, or supply noise generated by the circuit may become excessive

Method used

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Examples

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Embodiment Construction

[0047] In the following detailed description of the present application, example embodiments of the present application will describe and point out an apparatus for performing conversion from a low-amplitude differential input clock signal (CML) to a full-swing single-ended (SE) output signal, The device includes reduced swing effects, reduced latency, and reduced power consumption.

[0048] figure 1 An embodiment of a time-interleaved analog-to-digital converter architecture is shown. Provides an analog signal to the circuit shown. More specifically, it describes the figure 1 Time-interleaved track and hold (T / H) circuits 2a to 2n are used for the time-interleaved analog-to-digital converter shown. The analog input signal is fed to a plurality of track and hold circuits 2a to 2n. The T / H circuits 2a to 2n are arranged in parallel paths. Furthermore, each T / H circuit 2a to 2n is connected to an analog-to-digital converter 4a to 4n. The output signal is forwarded to at ...

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PUM

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Abstract

The present application relates to an apparatus comprising a first transistor element, with at least three terminals, and at least one switching unit. The present application relates also to a method, computer readable medium having a computer program stored thereon and a track and hold circuit comprising the apparatus. The apparatus comprises a first transistor element with at least three terminals, wherein a first terminal is supplied with a first voltage, and wherein a second terminal is supplied with a second voltage. The apparatus comprises a first switching unit, wherein a third terminal is connected to ground potential via the first switching unit. The transistor element comprises a predefined threshold voltage. The first voltage and the second voltage are predefined alternating voltages. The transistor element is configured such that in case a differential voltage between the first predefined alternating voltage and the second predefined alternating voltage is higher than the predefined threshold voltage and the first switching unit is not conductive the third terminal is charged with the first predefined alternating voltage.

Description

technical field [0001] The present application relates to a device comprising a first transistor element having at least three terminals and at least one switching unit. The present application also relates to a method, a computer readable medium storing a computer program and a track and hold circuit comprising said device. Background technique [0002] To sample a wideband signal such as a satellite receiver, a track-and-hold (T / H) circuit requires a bandwidth of about 1 GHz and a linearity of more than 50 dB. For radio components including software, even greater bandwidth is required. In order to be able to embed the T / H circuit together with an analog-to-digital converter (ADC) in a digital integrated circuit (IC), the power consumption of the T / H circuit and the ADC should be limited to a few hundred milliwatts. Time interleaving is a great way to combine power efficiency with high speed. However, time-interleaved T / H circuits require signal bandwidth per channel tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C27/02
CPCG11C27/026H03K19/018528
Inventor 西蒙·M·路易斯蒙马尔腾·韦尔特雷格特
Owner NXP BV