A Nonlinear Switched State-Space Model for Capacitive RF DACs.
- Resource Type
- Article
- Authors
- Trampitsch, Stefan; Markovic, Jovan; Obmann, Patrick; Fritzin, Jonas; Zaleski, Jan; Mayer, Christian; Fulde, Michael; Pretl, Harald; Springer, Andreas; Huemer, Mario
- Source
- IEEE Transactions on Circuits & Systems. Part I: Regular Papers. Jun2017, Vol. 64 Issue 6, p1342-1353. 12p.
- Subject
- *STATE-space methods
*COMPLEMENTARY metal oxide semiconductors
*DIFFERENTIAL equations
- Language
- ISSN
- 1549-8328
This paper presents a nonlinear state-space model (SSM) for a low power 28-nm complementary metal–oxide–semiconductor switched-capacitor digital-to-analog converter. The proposed model utilizes current–voltage (I-V) input and output relationships for passive devices, which are described by a set of first-order differential equations. The proposed model significantly increases accuracy when compared with the state-of-the-art models. The SSM simulation results have been verified using SpectreRF transistor-level simulations and validated by on-chip measurements. [ABSTRACT FROM AUTHOR]