A Single-Ended High-Voltage-Compliant 11-bit Current-Steering Digital-to-Analog Converter for Adaptive Noise Cancellation in Power Over Data Line Networks
IF 2.8 2区 工程技术Q2 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE
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引用次数: 0
Abstract
Automotive Ethernet is considered to be the backbone of future in-vehicle data communication. One main feature is its ability to simultaneously transmit data and energy via power over data lines (PoDL). This article proposes the design of a single-ended high-voltage (HV)-compliant 11-bit current-steering digital-to-analog converter (DAC). The converter is tailored for the utilization as digitally controlled current source in an adaptive noise-cancellation filter for PoDL networks. Designed in an HV-compliant 180-nm bipolar complementary metal-oxide-semiconductor (BiCMOS) semiconductor technology, the DAC features a monolithically combined topology of two identical 10-bit low-voltage (LV) current-steering DACs supplied at 1.8 V and two complementary HV-compliant output current stages. Main design features of the segmented LV DAC are the utilization of single-ended current cells with an optimized switching logic, proposed to enhance the cells transient performance and energy efficiency. Furthermore, a newly derived $Q^{4}$ asymmetric rotated walk switching scheme is investigated. At a maximum output voltage of 60 V, the proposed DAC can deliver a bidirectional output current with the amplitudes of up to 500 mA. The proposed DAC exhibits the highest voltage compliance combined with the highest output current compared with related works. It also features the second highest resolution. Operated at a sample rate of 10 MS/s with a resolution of 11 bit, a spurious-free dynamic range (SFDR) of 57.8 dB could be measured for a synthesized single tone at 100 kHz, as well as a maximum integral nonlinearity (INL) error of 1.61 LSB and a differential nonlinearity (DNL) error of 1.05 LSB.
期刊介绍:
The IEEE Transactions on VLSI Systems is published as a monthly journal under the co-sponsorship of the IEEE Circuits and Systems Society, the IEEE Computer Society, and the IEEE Solid-State Circuits Society.
Design and realization of microelectronic systems using VLSI/ULSI technologies require close collaboration among scientists and engineers in the fields of systems architecture, logic and circuit design, chips and wafer fabrication, packaging, testing and systems applications. Generation of specifications, design and verification must be performed at all abstraction levels, including the system, register-transfer, logic, circuit, transistor and process levels.
To address this critical area through a common forum, the IEEE Transactions on VLSI Systems have been founded. The editorial board, consisting of international experts, invites original papers which emphasize and merit the novel systems integration aspects of microelectronic systems including interactions among systems design and partitioning, logic and memory design, digital and analog circuit design, layout synthesis, CAD tools, chips and wafer fabrication, testing and packaging, and systems level qualification. Thus, the coverage of these Transactions will focus on VLSI/ULSI microelectronic systems integration.