0.5V,低功率批量驱动的电流差分传导功率放大器
Montree Kumngern1, Fabian Khateb2,3, Tomasz Kulej4
1Department of Telecommunications Engineering, School of Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand.
Sensors (Basel, Switzerland)
|November 9, 2024
概括
这项研究介绍了一种新型的低功耗,低电压电流差分传导放大器 (CDTA),采用散装驱动的MOS晶体管 (BD-MOST) 技术. 这种创新的CDTA可实现多功能电流模式通用过器,可独立控制频率和质量因子.
科学领域:
- 电子 电子 电子 电子 电子 电子 电子
- 模拟集成电路设计模拟集成电路设计
- 信号处理 信号处理
背景情况:
- 低功耗和低压模拟电路设计对于现代便携式和电池驱动的电子系统至关重要.
- 差电流传导放大器 (CDTA) 是用于模拟信号处理的多功能主动构件.
- 现有的CDTA设计往往在电力消耗和工作电压方面面临限制.
研究的目的:
- 介绍一款新型的低功耗,低压电流差分传导放大器 (CDTA).
- 为了证明拟议的CDTA在实现当前模式通用过器中的应用.
- 为了实现对其参数具有独立控制的过器,并且没有组件匹配条件.
主要方法:
- 使用在低电压和低功耗运行中在下值区域运行的批量驱动的MOS晶体管 (BD-MOST) 技术.
- 使用0.18微米CMOS技术设计CDTA.
- 采用拟议的CDTA实现一个当前模式的通用过器,能够实现五个标准过器功能.
主要成果:
- 拟议的CDTA在0.5V的低电源电压下工作,只消耗1.05μW的功率.
- 当前模式的通用过器从单个电路配置实现低通,带通,高通,带停止和全通响应.
- 过器具有低输入和高输出阻抗,使用接地电容器,并允许对自然频率和质量因子进行正交控制.
- SPICE的模拟证实了CDTA和波器电路的可行性和功能.
结论:
- 开发的基于BD-MOST的CDTA在低功耗,低压模拟电路设计方面取得了重大进展.
- 拟议的当前模式通用过器为各种过应用提供了灵活和高效的解决方案.
- 该电路能够实现多个过功能和独立的参数控制,使其非常适合集成电路实现.
相关概念视频
Small-Signal Analysis of MOSFET Amplifiers
510
In small-signal analysis, a MOSFET transistor amplifier acts as a linear amplifier when operating in its saturation region. The gate-to-source voltage (VGS) of the MOSFET is the sum of the DC biasing voltage and the small time-varying input signal. This combination sets up the operating point and modulates the drain current (ID) that flows from the drain to the source. When a small AC signal is superimposed on the DC bias voltage at the gate, the instantaneous drain current comprises three...
510
MOSFET Amplifiers
147
The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...
147
Small-Signal Analysis of BJT Amplifiers
984
Small signal analysis is a fundamental approach used in electronics to understand how a Bipolar Junction Transistor (BJT) amplifier processes signals. In the active region, the BJT is designed for linear amplification. The transistor's behavior under these conditions is governed by its instantaneous base-emitter voltage VBE, a sum of the DC bias VBE, and a small AC signal VBE, resulting in the collector current iC. Here, the collector current has a DC component and an AC component.
984
Biasing of FET
218
Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
218
BJT Amplifiers
407
Bipolar Junction Transistors (BJTs) are pivotal components in amplifier circuits, functioning as voltage-controlled current sources in their active region. This characteristic allows them to efficiently control the collector current through variations in the base-emitter voltage. Essentially, BJTs amplify power due to their ability to take a weak input signal and output a much stronger signal.
In BJT amplifier configurations, particularly in common-emitter setups, the transistor's role...
In BJT amplifier configurations, particularly in common-emitter setups, the transistor's role...
407
Biasing of Metal-Semiconductor Junctions
215
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
215


