Solid state circuits

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A 1.59 pJ/b 112-Gb/s PAM-4 and 1.06 pJ/b 168-Gb/s PAM-8 Resistor-Less 7-bit SST DAC-Based Transmitter With 8-Tap FFE

A 1.59 pJ/b 112-Gb/s PAM-4 and 1.06 pJ/b 168-Gb/s PAM-8 Resistor-Less 7-bit SST DAC-Based Transmitter With 8-Tap FFE 150 150
Author(s): Yao-Hung Tsai, Ming-Han Chuang, Shen-Iuan Liu

Abstract:

A resistor-less 7-bit source-series-termination (SST) digital-to-analog converter (DAC)-based transmitter (TX) with an 8-tap feedforward equalizer (FFE) is presented. Three different resistor-less SST segments (SSTSs) are employed to achieve low capacitance, compact area, and scaling friendliness. To reduce the output jitter of the 4:1 multiplexer due to the inter-symbol-interference (ISI), the …

Published in: IEEE Solid-State Circuits Letters
Page(s): 226 – 229
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3722281
Publisher: IEEE

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A 1.2-V, 8.5-ns Settling, Bi-Slewing CMOS Driver for Heavy Loads in Discrete-Time Analog Computing Applications

A 1.2-V, 8.5-ns Settling, Bi-Slewing CMOS Driver for Heavy Loads in Discrete-Time Analog Computing Applications 150 150
Author(s): Maysara Hamada, Mostafa Toubar, Zixu Wang, Nishant Bakshi, Hsiang-Chun Cheng, Mayank Palaria, Joshua Yang, Mike Shuo-Wei Chen

Abstract:

As crossbar-based analog computing grows in popularity for high-speed, energy-efficient processing, the need to drive discrete-time signals to heavy loads arises. This letter presents a novel bi-slewing CMOS driver utilizing high slew-rate error amplifiers and a push–pull stage. The proposed driver achieves a measured settling time of 8.5 ns and …

Published in: IEEE Solid-State Circuits Letters
Page(s): 218 – 221
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3717852
Publisher: IEEE

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An IEEE802.15.4a/z/ab Compatible IR-UWB 2TRX With Full-Duplex Radar Sensing and Aliasing Suppressing Semisynchronous TX

An IEEE802.15.4a/z/ab Compatible IR-UWB 2TRX With Full-Duplex Radar Sensing and Aliasing Suppressing Semisynchronous TX 150 150
Author(s): Anoop Narayan Bhat, Erwin Allebes, Elbert Bechthum, Zule Xu, Stan van der Ven, Mohieddine El Soussi, Johan van Den Heuvel, Paul van Zeijl, Paul Mateman, Murat Eskiyerli, Stefano Traferro, Amirashkan Farsaei, Evgenii Tiurin, Sahan Gamage, Pepijn Boer, Igor Petrov, Jochem Govers, Huib Visser, Martijn Hijdra, Sharada Prasad Shantharam, Ivo Marques, Gururaja Kasanadi Ramachandra, Kaijie Ding, Ran Li, Aasish Boora, Peter Vis, Mario Konijnenburg, Arjan Breeschoten, Peng Zhang, Yao-Hong Liu, Christian Bachmann

Abstract:

This letter presents an 802.15.4ab/a/z compatible IR-UWB 2TRX highlighting a full-duplex-based radar, a semisynchronous TX and TRX’s digital baseband. A capacitive tuning technique proposed in the electrical balance duplexer (EBD)-based duplex RF front-end (RF-FE) improves TX-antenna insertion loss by 1.4 dB and the sensitivity of TX–RX …

Published in: IEEE Solid-State Circuits Letters
Page(s): 190 – 193
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3697493
Publisher: IEEE

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A 27.5–28.5 mJ/Frame 3-D Gaussian Rendering Processor With Spherical Beta Illumination and Mixed-Precision Computation Path

A 27.5–28.5 mJ/Frame 3-D Gaussian Rendering Processor With Spherical Beta Illumination and Mixed-Precision Computation Path 150 150
Author(s): Cheng Nian, Xiaorui Mo, Jiaqi Zhang, Fasih Ud Din Farrukh, Jiaying Peng, Fei Chen, Chun Zhang

Abstract:

This letter presents a 3-D Gaussian rendering processor that integrates a spherical beta (SB) illumination module with a mixed-precision rendering engine to enable energy-efficient novel-view synthesis on edge devices. SB replaces spherical harmonics (SH) with a hardware-efficient kernel implemented using a pipelined fixed-point piecewise linear (PWL) power unit. The pipeline …

Published in: IEEE Solid-State Circuits Letters
Page(s): 113 – 116
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3676726
Publisher: IEEE

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Birch: A Real-Time Multi-Domain Multi-Task Extended Reality Perception Accelerator

Birch: A Real-Time Multi-Domain Multi-Task Extended Reality Perception Accelerator 150 150
Author(s): Kathleen Feng, Kai Bartolone, Kartik Prabhu, Brianna McColm, Xingyu Ni, Siddhant Gupta, Priyanka Raina

Abstract:

Birch is a system-on-chip (SoC) that efficiently and accurately accelerates the multi-task multi-domain extended reality (XR) perception pipeline, with workloads such as visual inertial odometry (VIO), eye gaze tracking, and scene understanding. Birch features vision modules with cascaded line buffers, in-step feature sorting, and double-buffered optical flow to extract and …

Published in: IEEE Solid-State Circuits Letters
Page(s): 121 – 124
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3673168
Publisher: IEEE

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A 7-Level 18-Wire-State Trio-Signaling Transmitter for MIPI C-PHY 3.0 Interfaces

A 7-Level 18-Wire-State Trio-Signaling Transmitter for MIPI C-PHY 3.0 Interfaces 150 150
Author(s): Junyeong Lee, Myeongjin Oh, Kiwoon Kim, Jung-Hoon Chun

Abstract:

This letter presents a MIPI C-PHY v3.0 TX, which adopts trio-signaling using three wires per lane. Each line supports seven-level signaling, enabling 18 wire states to map 32-bit data into nine symbols, achieving 3.56 bits/symbol efficiency. Balanced coding maintains constant driver current, enhancing SSO noise immunity, and embedded clocking is achieved …

Published in: IEEE Solid-State Circuits Letters
Page(s): 101 – 104
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3672642
Publisher: IEEE

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A 70-GHz Bandwidth Amplifier With Integrated Differential Bridged T-coil Peaking and Uniform Group Delay

A 70-GHz Bandwidth Amplifier With Integrated Differential Bridged T-coil Peaking and Uniform Group Delay 150 150
Author(s): Giovanni Scarlato, John R. Long

Abstract:

A two-stage amplifier in 22-nm FD-SOI CMOS integrates a fully-differential bridged T-coil for the first time. Circuit performance is benchmarked against an identical amplifier topology designed with single-ended T-coils (pseudo-differential) and an unpeaked reference. It realizes 70-GHz bandwidth with $12~\pm ~2$ -ps group delay and >10-dB return loss across 90 GHz. Bandwidth …

Published in: IEEE Solid-State Circuits Letters
Page(s): 65 – 68
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3661366
Publisher: IEEE

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PANNA: A 558 TOPS/W Pipelined All-Analog Neural Network Accelerator in 22 nm FD-SOI

PANNA: A 558 TOPS/W Pipelined All-Analog Neural Network Accelerator in 22 nm FD-SOI 150 150
Author(s): Jakob Finkbeiner, Raphael Nägele, Manuel Wittlinger, Markus Grözing, Manfred Berroth, Georg Rademacher

Abstract:

Analog computing offers intrinsic energy and latency benefits that makes it attractive for real-time and edge applications. Conventional analog accelerators suffer from repeated conversions between analog and digital domain, which degrades efficiency and throughput. We propose an all-analog pipelined neural network accelerator architecture in 22 nm fully-depleted silicon-on-insulator (FD-SOI) complementary metal-oxide-semiconductor (…

Published in: IEEE Solid-State Circuits Letters
Page(s): 365 – 368
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3627274
Publisher: IEEE

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An 8-Bit 400-MS/s 1-Then-2-Bit/Cycle SAR ADC With Comparator Rotation-Based Input-Independent Background Offset Calibration

An 8-Bit 400-MS/s 1-Then-2-Bit/Cycle SAR ADC With Comparator Rotation-Based Input-Independent Background Offset Calibration 150 150
Author(s): Changjoo Kim, Sooho Park, Yohan Choi, Minkyun Shim, Woojin Lee, Donghwi Seo, Chulwoo Kim

Abstract:

This letter presents an 8-bit 400 MS/s 1-then-2-bit/cycle successive approximation register (SAR) analog-to-digital converter (ADC) employing a comparator rotation-based background offset calibration (CRBC) technique. Unlike conventional 1-then-2-bit/cycle architectures, where calibration validity depends on the input voltage, the proposed comparator rotation-based background calibration enables input-independent background calibration, …

Published in: IEEE Solid-State Circuits Letters
Page(s): 345 – 348
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3624263
Publisher: IEEE

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