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A 32-Gb/s High-Swing PAM-4 Current-Mode Driver with Current-Bleeding Cascode Technique and Capacitive-Coupled Pre-drivers in 40-nm CMOS for Short-Reach Wireline Communications
- Song, Eunji;
- Yang, Jeonghyu;
- Hong, Seungwook;
- Han, Jae duk
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7초록
This paper describes a 32-Gb/s high-swing PAM4 transmit driver for short-reach wireline communications. The proposed current-mode transmitter utilizes the current-bleeding cascode technique to achieve the 1.4-V differential peak-to-peak swing without violating breakdown constraints. The transmitter bandwidth is enhanced by capacitive-coupled pre-drivers to maximize the cursor amplitude and signal-to-noise ratio. The transmitter test chip is fabricated in a 40-nm CMOS process and occupies 0.004 mm2. The design achieves a 32-Gb/s data rate with 157-mV eye height and 2.3-pJ/bit energy efficiency.
키워드
capacitive coupling; cascode; current bleeding; current-mode driver; high-swing; PAM-4; transmitter; Analog circuits; Cascode amplifiers; CMOS integrated circuits; Energy efficiency; Pulse amplitude modulation; Signal to noise ratio; Transmitters; Capacitive couplings; Cascode; Current-bleeding; Current-mode driver; Current-modes; High-swing; PAM-4; Peak-to-peak; Pre-driver; Wire-line communications
- 제목
- A 32-Gb/s High-Swing PAM-4 Current-Mode Driver with Current-Bleeding Cascode Technique and Capacitive-Coupled Pre-drivers in 40-nm CMOS for Short-Reach Wireline Communications
- 저자
- Song, Eunji; Yang, Jeonghyu; Hong, Seungwook; Han, Jae duk
- 발행일
- 2022-08
- 유형
- Proceedings Paper
- 저널명
- 2022 IEEE 65TH INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS (MWSCAS 2022)
- 권
- 2022-August
- 페이지
- 1 ~ 4