A power efficient digitally programmable delay element for low power VLSI applications
A power efficient digitally programmable delay element for low power VLSI applications
复制标题
适用于低功耗 VLSI 应用的高能效数字可编程延迟元件
DOI:
10.1109/asqed.2009.5206292
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
Huazhong Yang
中科院分区:
文献类型:
--
作者:
Sekedi B. Kobenge;Huazhong Yang
Digitally programmable delay elements (DPDE) are required to be monotonic and low power. In this paper, a low power digitally programmable delay element (DPDE) with monotonic delay characteristics is proposed. A dynamic current mirror together with a feedback technique enables a current-on-demand operation. To avoid direct currents in the output transistors, an extra inverter is introduced to independently control the NMOS of the output inverter. The static power is eliminated while dynamic power is made proportional to the delay with a maximum of 36uW when the unit is operating at 450MHz.