A CMOS Based Balanced Differential Amplifier with MOS Loads
نویسنده
چکیده
The Balanced Differential Amplifiers play a most important role as basic building block in instrumentation amplifier circuit. One of the characteristic of a differential amplifier, the common mode rejection ratio (CMRR) is most important. The active load used for balanced differential amplifier is going to affect differential gain, thus CMRR of the circuit. The active load used can be a diode connected load or current source load. Though the differential gain is limited by nonlinearity of MOSFET, optimum differential gain can be obtained by combination of both active loads.
منابع مشابه
The Differential Difference Operational Floating Amplifier: A New Block For Analog Signal Processing - Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
A wide-range differential difference operational floating amplifier (DDOFA) is introduced. The DDOFA is a new block useful for continuous-time analog signal processing. The DDOFA is realized using a differential difference transconductor with large signal handling capability and a single input differential output current op-amp. The DDOFA forces two differential voltages to the same value and p...
متن کاملDigitally Controlled Cmos Balanced Output Transconductor and Application to Variable Gain Amplifier and Gm-c Filter on Field Programmable Analog Array
A digitally controlled balanced output transconductor (DCBOTA) is proposed and analyzed. The proposed DCBOTA is based on the BOTA given in Ref. 1 and MOS switches. The DCBOTA transconductance is tunable in a range of 2n−1 times using n bits control word. The proposed DCBOTA is simulated using CMOS 0.35μm technology and the results have shown the feasibility of the proposed DCBOTA. The simulatio...
متن کاملThe current-feedback differential difference amplifier: new CMOS realization with rail to rail class-AB output stage
A CMOS realization of the current-feedback differential difference amplifier (CFDDA) is proposed. The CFDDA circuit is realized using a wide input range dependent load transconductor (DTA) with three independent input voltages and a rail to rail classAB voltage buffer. The CFDDA circuit is used to realize a MOS-C oscillator suitable for VLSI. PSpice simulation results for the CFDDA circuit and ...
متن کاملAnalysis and Design of High Gain, and Low Power CMOS Distributed Amplifier Utilizing a Novel Gain-cell Based on Combining Inductively Peaking and Regulated Cascode Concepts
In this study an ultra-broad band, low-power, and high-gain CMOS Distributed Amplifier (CMOS-DA) utilizing a new gain-cell based on the inductively peaking cascaded structure is presented. It is created bycascading of inductively coupled common-source (CS) stage and Regulated Cascode Configuration (RGC).The proposed three-stage DA is simulated in 0.13 μm CMOS process. It achieves flat and high ...
متن کاملLow Voltage Rail to Rail CMOS Current Feedback Operational Ampli®er and its Applications for Analog VLSI
This paper presents a new CMOS current feedback operational amplifier (CFOA) with rail to rail swing capability at all terminals. The circuit operates as a class AB for lower power consumption. Besides operating at low supply voltages of 1.5 V, the proposed CFOA has a standby current of 200 A. The proposed CFOA circuit is thus a versatile building block for low voltage low power applications. T...
متن کامل