Large input common-mode range (CMR) is achieved utilizing hulk-driven PMOS-transistors as an input differential pair of the opamp. The opamp was fabricated in a 0.35-μm n-well double-poly CMOS process with threshold voltages of 0.5 V and 0.65 V. The open-loop gain (A{sub}0) of the...
This is equivalent to applying common-mode signals (or signals with little difference in voltage) to the op-amp. If the input signals of an op-amp are outside the specified common-mode input voltage range, the gain of the differential amplifier decreases,...
As the supply voltage to a standard CMOS op-amp is reduced, the input common mode range and the output swing get reduced drastically. Special biasing circu... SV Gopalaiah,AP Shivaprasad - IEEE International Workshop on Electronic Design 被引量: 26发表: 2004年 A design strategy for a 1...
1.In order to meet the demand for a wide input common-mode range (ICMR) required by high-side current-sensing amplifiers,input stages whose ICMR can exceed the supply rail were researched and analyzed.针对高端电流检测放大器输入级对宽输入共模电压范围的要求,对宽输入共模电压范围放大器的输入结构开...
Circuits and methods for extending the input common mode voltage range of JFET op-amps Circuits and methods for extending the input common mode voltage range of a JFET op-amp are provided. The circuits and methods consist of modifying the input stage of a JFET op-amp to include a BJT pair...
I'm not sure what replacement op-amp you would want to use. However, I would consider op-amps that have a low offset, and wide common-mode input range. Because the op-amp inputs need to span large input range you would likely look for devices with ra...
aAnalog circuit designs that use inverting opamp configuration can be converted into low-voltage designs by biasing the opamp input common-mode voltage to near one of the supply rails. 使用倒置opamp配置的模式电路设计可以被转换成低压设计被偏心opamp输入共同方式电压到近一个供应路轨。[translate]...
In order to meet the demand for a wide input common-mode range (ICMR) required by high-side current-sensing amplifiers,input stages whose ICMR can exceed the supply rail were researched and analyzed. 针对高端电流检测放大器输入级对宽输入共模电压范围的要求,对宽输入共模电压范围放大器的输入结构开...
This paper proposes an alternate switched-capacitor amplifier capable of handling rail-to-rail input common-mode voltage without using a rail-to-rail op-amp. Unlike most existing switched-capacitor architectures, the proposed alternate architecture holds the op-amp input terminals at a fixed voltage ...
It is necessary to provide a path for this input bias current to flow, and must also be within the common-mode input voltage range - which for this part is not an issue as it is RRI. Remember that an offset will also occur due to this bias current and the resistance you connect t...