A 4-Channel Multi-Rate VCSEL Driver with Automatic Power, Magnitude Calibration using High-Speed Time-Interleaved Flash-SAR ADC in 0.13 mu m CMOS

作者：Cho Sunghun; Lee DongSoo; Lee Juri; Park Hyung Gu; Pu YoungGun; Yoo Sang Sun; Hwang Keum Cheol; Yang Youngoo; Park Cheon Seok; Lee Kang Yoon^*

来源：Journal of Semiconductor Technology and Science, 2016, 16(3): 274-286.

DOI：10.5573/JSTS.2016.16.3.274

• VCSEL driver
• automatic power calibration
• automatic magnitude calibration
• Flash-SAR ADC
• multi-rate

This paper presents a 4-channel multi-rate vertical-cavity surface-emitting laser (VCSEL) driver. In order to keep the output power constant with respect to the process, voltage, temperature (PVT) variations, this research proposes automatic power and magnitude. For the fast settling time, the high-speed 10-bit time-interleaved Flash-successive approximation analog to digital converter (Flash-SAR ADC) is proposed and shared for automatic power and magnitude calibration to reduce the die area and power consumption. This chip is fabricated using 0.13-mu m CMOS technology and the die area is 4.2 mm2. The power consumption is 117.84 mW per channel from a 3.3 V supply voltage at 10 Gbps. The measured resolution of bias/modulation current for APC/AMC is 0.015 mA.

• 出版日期2016-6