Rail to Rail Comparator for SAR ADC in Biomedical Applications

被引：0

作者：

ALjehani, Nawaf ^{[1
]}

Abbas, Mohamed ^{[1
,2
]}

机构：

[1] King Saud Univ, Coll Engn, Elect Engn Dept, Riyadh, Saudi Arabia

[2] Assiut Univ, Fac Engn, Elect Engn Dept, Assiut, Egypt

来源：

PROCEEDINGS OF THE 28TH INTERNATIONAL CONFERENCE MIXED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS (MIXDES 2021) | 2021年

关键词：

G(m)/I-D; Design Methodology; Pre-Amplifier; StrongARM Latch; Comparator;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

this paper presents low voltage low power a rail to rail common mode range clocked comparator. The target application of the proposed circuit is analog to digital converter for biomedical applications. The proposed comparator is composed of two stages which are pre-amplifiers and modified strong-Arm latch. The outputs of NMOS-input and PMOS-input pre-amplifiers are combined by the modified Strong-Arm latch producing rail to rail common mode range clocked comparator. Adopting TSMC 0.18 mu m technology, the preamplifier stages were designed to work in weak inversion using g(m)/I-D design methodology. The simulation results show that the preamplifier stage consumes less than 0.275 mu W using power supply of 0.75V. The pre-amplifier DC gain of 43.15dB and unity gain frequency of 300 kHz

引用

页码：137 / 140

页数：4