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2016 IEEE Symposium on VLSI Circuits (VLSI-Circuits)最新文献

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A 0.23 µg bias instability and 1.6 µg/Hz1/2 resolution silicon oscillating accelerometer with build-in Σ-Δ frequency-to-digital converter 一个0.23µg偏置不稳定性和1.6µg/Hz1/2分辨率硅振荡加速度计与内置Σ-Δ频率到数字转换器
Pub Date : 2016-06-15 DOI: 10.1109/VLSIC.2016.7573530
Jian Zhao, Xi Wang, Yang Zhao, G. Xia, A. Qiu, Yan Su, Y. Xu
This paper presents a silicon oscillating accelerometer (SOA) with CMOS readout circuit. To reduce the bias instability, a PLL is employed to sustain the oscillation instead of the conventional auto-amplitude-control (AAC) circuit. A sigma-delta frequency-to-digital converter (FDC) is built in the PLL to produce the digital output. The MEMS sensor and readout circuit are fabricated in 80 μm SOI and standard 0.35 μm CMOS process, respectively. The SOA achieves 0.23 μg bias instability and 1.6 μg/Hz1/2 resolution with ±30 g full-scale, which are equivalent to 4-ppb relative instability and 27-ppb/Hz1/2resolution. In addition, it only consumes 2.7 mW under a 1.5 V supply.
提出了一种带有CMOS读出电路的硅振荡加速度计(SOA)。为了降低偏置不稳定性,采用锁相环来维持振荡,而不是传统的自幅值控制电路。在锁相环中内置了一个σ - δ频率-数字转换器(FDC)来产生数字输出。MEMS传感器和读出电路分别采用80 μm SOI和标准0.35 μm CMOS工艺制造。在±30 g满量程条件下,SOA的相对不稳定性为0.23 μg,分辨率为1.6 μg/Hz1/2,相当于相对不稳定性为4 ppb,分辨率为27 ppb/Hz1/2。此外,它在1.5 V电源下仅消耗2.7 mW。
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引用次数: 5
A 5.8 pJ/Op 115 billion ops/sec, to 1.78 trillion ops/sec 32nm 1000-processor array 一个5.8 pJ/Op 1150亿ops/秒,到1.78万亿ops/秒的32nm千处理器阵列
Pub Date : 2016-06-15 DOI: 10.1109/VLSIC.2016.7573511
Brent Bohnenstiehl, Aaron Stillmaker, J. Pimentel, Timothy Andreas, Bin Liu, A. Tran, E. Adeagbo, B. Baas
1000 programmable processors and 12 independent memory modules capable of simultaneously servicing both data and instruction requests are integrated onto a 32nm PD-SOI CMOS device. At 1.1 V, processors operate up to an average of 1.78 GHz yielding a maximum total chip computation rate of 1.78 trillion instructions/sec. At 0.84 V, 1000 cores execute 1 trillion instructions/sec while dissipating 13.1 W.
1000个可编程处理器和12个能够同时服务数据和指令请求的独立内存模块集成在32nm PD-SOI CMOS器件上。在1.1 V电压下,处理器的平均工作频率高达1.78 GHz,最大总芯片计算速率为1.78万亿指令/秒。在0.84 V时,1000个内核每秒执行1万亿个指令,而功耗为13.1 W。
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引用次数: 45
A 65nm CMOS transceiver with integrated active cancellation supporting FDD from 1GHz to 1.8GHz at +12.6dBm TX power leakage 一款集成有源对消的65nm CMOS收发器,支持1GHz至1.8GHz的FDD, +12.6dBm TX漏功率
Pub Date : 2016-06-15 DOI: 10.1109/VLSIC.2016.7573499
Sameet Ramakrishnan, Lucas Calderin, A. Puglielli, E. Alon, A. Niknejad, B. Nikolić
This paper presents an active transmitter (TX) cancellation scheme for FDD that synthesizes a replica of the TX current in shunt with the receiver (RX), virtually shorting out the TX signal for the RX while having minimal impact on TX insertion loss. The prototype in 65nm CMOS demonstrates >50dB cancellation of a +12.6dBm peak 20MHz modulated TX signal. A receiver integrated on the same prototype is able to down-convert the RX signal at 40MHz offset with <;4.3dB noise figure (NF) degradation in the presence of the residual TX.
本文提出了一种用于FDD的有源发送器(TX)取消方案,该方案合成了与接收器(RX)分流的TX电流的副本,实际上缩短了RX的TX信号,同时对TX插入损耗的影响最小。在65nm CMOS中,原型显示了对+12.6dBm峰值20MHz调制TX信号的>50dB抵消。集成在同一原型上的接收器能够在残余TX存在的情况下,在40MHz偏置下对RX信号进行下转换,噪声系数(NF)降低< 4.3dB。
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引用次数: 13
A fully integrated 144 MHz wireless-power-receiver-on-chip with an adaptive buck-boost regulating rectifier and low-loss H-Tree signal distribution 一个完全集成的144兆赫无线电源接收器芯片与自适应降压升压调节整流器和低损耗h树信号分布
Pub Date : 2016-06-15 DOI: 10.1109/VLSIC.2016.7573492
Chul Kim, Jiwoong Park, Abraham Akinin, S. Ha, R. Kubendran, Hui Wang, P. Mercier, G. Cauwenberghs
An adaptive buck-boost resonant regulating rectifier (B2R3) with an integrated on-chip coil and low-loss H-Tree power/signal distribution is presented for efficient and robust wireless power transfer (WPT) over a wide range of input and load conditions. The B2R3 integrated on a 9 mm2 chip powers integrated neural interfacing circuits as a load, with a TX-load power conversion efficiency of 2.64 % at 10 mm distance, resulting in a WPT system efficiency FoM of 102.
提出了一种具有集成片上线圈和低损耗H-Tree功率/信号分布的自适应降压-升压谐振调节整流器(B2R3),可在大范围输入和负载条件下实现高效、鲁棒的无线电力传输(WPT)。集成在9 mm2芯片上的B2R3作为负载为集成神经接口电路供电,在10 mm距离上的tx负载功率转换效率为2.64%,从而使WPT系统效率FoM为102。
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引用次数: 19
A 12-bit 1.6 GS/s interleaved SAR ADC with dual reference shifting and interpolation achieving 17.8 fJ/conv-step in 65nm CMOS 一个12位1.6 GS/s的交错SAR ADC,具有双参考移位和插值,在65nm CMOS中实现17.8 fJ/ convstep
Pub Date : 2016-06-15 DOI: 10.1109/VLSIC.2016.7573516
J. Nam, Mohsen Hassanpourghadi, Aoyang Zhang, M. Chen
A 12-bit SAR ADC architecture with dual reference shifting and interpolation technique has been proposed and implemented with 8-way time interleaving in 65nm CMOS. The proposed technique converts 4 bits per SAR conversion cycle with reduced overhead, which is a key to achieve both high speed and resolution while maintaining low power consumption. The measured peak SNDR is 72dB and remains above 65.3dB at 1-GHz input frequency at sample rate of 1.6 GS/s. It achieves a record power efficiency of 17.8fJ/conv-step among the recently published high-speed/resolution ADCs.
提出了一种采用双基准移位和插值技术的12位SAR ADC架构,并在65nm CMOS上实现了8路时间交错。该技术每个SAR转换周期转换4位,降低了开销,这是在保持低功耗的同时实现高速和分辨率的关键。在1 ghz输入频率下,采样率为1.6 GS/s时,测量到的峰值SNDR为72dB,保持在65.3dB以上。它在最近发布的高速/分辨率adc中实现了17.8fJ/ v-step的创纪录功率效率。
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引用次数: 12
A compact 446 Gbps/W AES accelerator for mobile SoC and IoT in 40nm 紧凑型446 Gbps/W AES加速器,适用于40nm的移动SoC和物联网
Pub Date : 2016-06-15 DOI: 10.1109/VLSIC.2016.7573553
Yiqun Zhang, Kaiyuan Yang, Mehdi Saligane, D. Blaauw, D. Sylvester
An AES hardware accelerator targeting energy efficient, low cost mobile and IoT applications is fabricated in 40nm CMOS. The proposed design eliminates the ShiftRow stage in conventional AES implementations and replaces flip-flops in data and key storage with latches using re-timing, saving 25% area and 69% power. Along with a 2-stage Sbox in native GF(24)2 composite-field computation and glitch reduction techniques, this results in a compact 2228 gate design achieving 446 Gbps/W and 46.2 Mbps throughput at 0.47V.
针对节能、低成本移动和物联网应用的AES硬件加速器采用40nm CMOS制造。提出的设计消除了传统AES实现中的ShiftRow级,并使用重新定时的锁存器取代了数据和密钥存储中的触发器,节省了25%的面积和69%的功耗。加上原生GF(24)2复合场计算和故障减少技术中的2级Sbox,这使得紧凑的2228栅极设计在0.47V下实现了446 Gbps/W和46.2 Mbps的吞吐量。
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引用次数: 34
1.74-µW/ch, 95.3%-accurate spike-sorting hardware based on Bayesian decision 1.74-µW/ch, 95.3%准确率的基于贝叶斯决策的尖峰排序硬件
Pub Date : 2016-06-15 DOI: 10.1109/VLSIC.2016.7573468
Zhewei Jiang, J. P. Cerqueira, Seongjong Kim, Qi Wang, Mingoo Seok
This paper presents algorithm/hardware co-design for real-time unsupervised spike sorting hardware for reducing power and improving sorting accuracy. We devise an algorithm based on Bayesian decision, which enables high accuracy while using noisy and simple time-domain features. Those simple features significantly reduce computation complexity, memory requirement, and thus the required number of cycles per sorting. The latter, coupled with the sparsity of spikes in time, makes the hardware idle for most of time, and thus we employ aggressive power gating and balloon latches to sleep most of the circuits and wake them up only when a spike is detected for maximal power savings. The hardware prototyped in a 65nm achieves higher accuracy at lower power than the existing arts.
本文提出了一种算法/硬件协同设计的实时无监督尖峰分拣硬件,以降低功耗和提高分拣精度。我们设计了一种基于贝叶斯决策的算法,该算法可以在使用噪声和简单的时域特征的情况下实现高精度。这些简单的特性显著降低了计算复杂度、内存需求以及每次排序所需的周期数。后者,再加上时间尖峰的稀疏性,使得硬件在大部分时间处于空闲状态,因此我们采用积极的功率门控和气球锁存器来休眠大多数电路,只有在检测到尖峰时才唤醒它们,以最大限度地节省功耗。采用65nm工艺的硬件原型在较低功耗下实现了比现有工艺更高的精度。
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引用次数: 7
A 0.6mW 31MHz 4th-order low-pass filter with +29dBm IIP3 using self-coupled source follower based biquads in 0.18µm CMOS 一个0.6mW 31MHz 4阶低通滤波器,+29dBm IIP3,使用基于自耦合源跟随器的biquad, 0.18µm CMOS
Pub Date : 2016-06-15 DOI: 10.1109/VLSIC.2016.7573507
Yang Xu, Spencer Leuenberger, Praveen Kumar Venkatachala, U. Moon
A highly compact low-pass filter (LPF) using self-coupled source follower based biquads is presented. The biquad cell synthesizes a 2nd-order low-pass transfer function in a single branch, using only two capacitors and a source follower with embedded local feedback for excellent linearity. A 4th-order Chebyshev LPF prototype is designed with a cascade of two biquads in 0.18μm CMOS, and occupies an active area of 0.1mm2. A cut-off frequency of 31MHz is measured with a stop-band rejection of 76dB. The prototype filter draws only 0.46mA current from a 1.35V supply, and achieves an in-band IIP3 of +29dBm. The averaged in-band input-referred noise is 22.8nV/√Hz, resulting in a dynamic range of 71dB.
提出了一种基于自耦合源从动器的高紧凑低通滤波器(LPF)。双单元在单个支路中合成二阶低通传递函数,仅使用两个电容器和一个具有嵌入式局部反馈的源从动器,具有出色的线性度。在0.18μm CMOS上设计了一个四阶Chebyshev LPF原型,该原型具有两个双级联结构,其有效面积为0.1mm2。截止频率为31MHz,阻带抑制为76dB。原型滤波器仅从1.35V电源中吸取0.46mA电流,并实现+29dBm的带内IIP3。平均带内输入参考噪声为22.8nV/√Hz,动态范围为71dB。
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引用次数: 11
An inductor-less fractional-N injection-locked PLL with a spur-and-phase-noise filtering technique 采用脉冲和相位噪声滤波技术的无电感分数n注入锁相环
Pub Date : 2016-06-15 DOI: 10.1109/VLSIC.2016.7573547
A. Li, Y. Chao, Xuan Chen, Liang Wu, H. Luong
Utilizing a novel phase-averaging filtering technique capable of wide-band spur-and-phase-noise suppression of up to 20dB, a 1.2-GHz inductor-less fractional-N injection-locked PLL achieves phase noise as low as -146dBc/Hz at 30MHz offset with 2MHz resolution allowing for inductor-less alternatives to LC-based PLLs in wireless applications. The 65nm CMOS prototype improves 10-MHz phase noise from -115 to -135dBc/Hz, injection spurs from -40.5dB to -57dB, and integrated jitter from 3.57ps to 1.48ps while occupying an area of 0.6mm2 and consuming 19.8mW from a 0.85V supply resulting in FoM and FoMJitter of -163dB and -223.6dB respectively.
利用一种新颖的相位平均滤波技术,能够抑制高达20dB的宽带脉冲和相位噪声,1.2 ghz无电感分数n注入锁相环在30MHz偏移量下实现低至-146dBc/Hz的相位噪声,分辨率为2MHz,允许无线应用中无电感的lc锁相环替代方案。65nm CMOS原型将10 mhz相位噪声从-115提高到-135dBc/Hz,注入杂散从-40.5dB提高到-57dB,集成抖动从3.57ps提高到1.48ps,而占用0.6mm2的面积和0.85V电源消耗19.8mW,导致FoM和FoMJitter分别为-163dB和-223.6dB。
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引用次数: 7
A 400mV active VMIN, 200mV retention VMIN, 2.8 GHz 64Kb SRAM with a 0.09 um2 6T bitcell in a 16nm FinFET CMOS process 一个400mV有源VMIN, 200mV保持VMIN, 2.8 GHz 64Kb SRAM,位单元为0.09 um2 6T,采用16nm FinFET CMOS工艺
Pub Date : 2016-06-15 DOI: 10.1109/VLSIC.2016.7573513
A. Bhavnagarwala, Imran Iqbal, A. Nguyen, David Ondricek, V. Chandra, R. Aitken
We propose and demonstrate in silicon simple, new circuit solutions using a standard 1-1-2 fin 0.09 um2 6T SRAM commercial bitcell in a 16nm FinFET CMOS process to enable a 400mV active VMIN, 200mV retention VMIN SRAM in a 64Kb CMOS array with 128b/BL. Active VMIN is enabled with a self-triggered feedback on an under-driven BL with faster and more robust signal development on the BL at lower voltages - providing dual read assist, and also a 2X tighter offset voltage distribution when compared to conventional differential voltage sensing. 200mV retention VMIN is enabled by reusing write assist circuit overhead while engaging two key observations: insensitivity of bitcell stability to systematic variations and sensitivity of bitcell data to noise on the power grid in the subthreshold/near threshold region. Average FMAX of 140MHz and 2.8GHz are measured across all chips for VDD at 0.4V and 0.9V respectively.
我们提出并演示了在硅简单的新电路解决方案,使用标准的1-1-2 fin 0.09 um2 6T SRAM商用位单元在16nm FinFET CMOS工艺中实现400mV有源VMIN, 200mV保持VMIN SRAM在64Kb CMOS阵列中,128b/BL。主动VMIN通过对欠驱动BL的自触发反馈来实现,在较低电压下,BL上的信号发展更快、更稳健,提供双读辅助,与传统差分电压传感相比,偏移电压分布也更紧2倍。200mV保持VMIN通过重用写入辅助电路开销实现,同时进行两个关键观察:位元稳定性对系统变化的不敏感性和位元数据对亚阈值/近阈值区域电网噪声的敏感性。在VDD的所有芯片上,在0.4V和0.9V下分别测量了140MHz和2.8GHz的平均FMAX。
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引用次数: 1
期刊
2016 IEEE Symposium on VLSI Circuits (VLSI-Circuits)
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