학술논문
A low-power, 10GS/s track-and-hold amplifier in SiGe BiCMOS technology
Document Type
Conference
Author
Source
Proceedings of the 31st European Solid-State Circuits Conference, 2005. ESSCIRC 2005. Solid-State Circuits Conference Solid-State Circuits Conference, 2005. ESSCIRC 2005. Proceedings of the 31st European. :263-266 2005
Subject
Language
ISSN
1930-8833
Abstract
This paper presents a low-power high-speed BiCMOS track-and-hold amplifier (THA). It combines the differential switched-emitter follower of (Vorenkamp and Verdaasdonk, 1992) with the low-droop output buffer presented in (Fiocchi et al., 2000). A test implementation consumes 70 mW of total power (30 mW THA). It works up to 15 GS/s, using minimum-size HBTs in a 0.25/spl mu/m 200 GHz SiGe BiCMOS technology. At 10 GS/s and an input signal of 1 GHz, the achieved THD corresponds to 6.8 bits accuracy. To our knowledge, the present circuit is by far the fastest THA with low power consumption and high accuracy.