【摘 要】
:
A four-stage Operational transconduc-tance amplifier (OTA) used in an infrared temperature sensor adopting the proposed Feed-forward Gm-stage and segmenting nested Miller compensation technique is presented.The purpose of the proposed segment compensation
【机 构】
:
School of Microelectronics,Xidian University,Xi’an 710071,China
论文部分内容阅读
A four-stage Operational transconduc-tance amplifier (OTA) used in an infrared temperature sensor adopting the proposed Feed-forward Gm-stage and segmenting nested Miller compensation technique is presented.The purpose of the proposed segment compensation is primarily to make more amplifier stages concatenated.The circuit linked several transconductance stages to form a segment,and linked several segments to form a large multistage amplifier.For example,a two-stage amplifier linked with a three-stage amplifier can realize a five-stage amplifier,two three-stage amplifiers linked can realize a six-stage amplifier.A four-stage amplifier in the form of 2+2 (two stages and two stages)was used as an example to verify this compensation method.The proposed OTA is designed in the 180nm complementary metal oxide semiconductor process.It consists of two parts which ensure the stability and improve the bandwidth performance.The first part is a feed-forward transconductance stage,and the second part is the two-segment transconductance stages with the Miller compensation techniques employed within and between the two segments.Based on the small-signal model,stability analysis and theoretical derivation are performed in theory.On condition of a 2-pF load capacitance,a direct current gain of 109dB and a gain-bandwidth of 240MHz with a phase margin of 50° can be achieved.The proposed design consumes 2.19mW in a 1.8-V supply voltage.The transient simulation indicates that the settling time of the output is 19ns with the settling error being 1%,and the slew rate is 114V/μs.
其他文献
3D object detection based on point cloud has an important application prospect in automatic driving technology. Aiming at the low precision of 3D object detection based on point cloud and the poor rea
Electrocardiogram (ECG) is widely used in Myocardial infarction (MI) diagnosis.The automatic diagnosis of MI based on the 12-lead ECG needs to consider not only the waveform change features in multi-resolution time series,but also the spatial correlation
Trajectory prediction is a prerequisite for missile and high-speed vehicle guidance interception.To address the trajectory problem for the near space hyper-sonic unpowered gliding vehicle.Firstly,the trajectory prediction mechanism is analyzed.Based on th
With the expansion of data scale and the increase in data complexity,it is particularly important to accurately identify clusters and efficiently save clustering results.To address this,we propose a novel clustering algorithm,Shape clustering based on dat
Electromagnetic emissions from electrical information equipment may contain useful information and lead to information leakage. In order to detect the electromagnetic information leakage of digital vi
Vehicular ad hoe networks (VANETs) cre-ate an vital platform for communication between vehicles,which can realize accident warning,auxiliary driving,road traffic information query,passenger communication and other applications.While providing convenient s
Although the federated learning method has the ability to balance data and protect data privacy by means of model aggregation,while the existing methods are difficult to achieve the effectiveness of centralized learning under data sharing.The existing fed
Ultrasound computed tomography(UCT)is a promising approach for early breast cancer screening.However, current studies which use prone posture to collect breast ultrasonic data cause four problems, a l
Ionizing radiation effect and failure mechanism of Digital signal processor (DSP) is studied through test-board and automatic test equipment to find the relationship between system function failure and parameter degradation.Static bias is more sensitive t
This paper aims to solve the problem of low efficiency,high cost and instability in opportunistic network transmission in the process of mobile group intelligence perception task allocation.Two multi-task dynamic distribution methods based on Lowest cost