Operational amplifier stability compensation methods for capacitive loading applied to TS507
ثبت نشده
چکیده
Operational amplifier stability compensation methods for capacitive loading applied to TS507 Introduction Who has never experienced oscillations issues when using an operational amplifier? Op-amps are often used in a simple voltage follower configuration. However, this is not the best configuration in terms of capacitive loading and potential risk of oscillations. Capacitive loads have a big impact on the stability of operational amplifier-based applications. Several compensation methods exist to stabilize a standard op-amp. This application note describes the most common ones, which can be used in most cases. The general theory of each compensation method is explained, and based on this, specific data is provided for the TS507. The TS507 is a high precision rail-to-rail amplifier, with very low input offset voltage, and a 1.9 MHz gain bandwidth product, which is available in SOT23-5 and SO-8 packages. This document simplifies the task of designing an application that includes the TS507. It spares you the time-consuming effort of trying numerous combinations on bench, and it is also much more accurate than using Spice models which are not designed to study system stability, even though they can give a general trend.
منابع مشابه
A Low-Voltage, Low-Power, Two-Stage Amplifier for Switched-Capacitor Applications in 90 nm CMOS Process
Abstract- A novel low-voltage two-stage operational amplifier employing resistive biasing is presented. This amplifier implements neutralization and correction common mode stability in second stage while employs capacitive dc level shifter and coupling between two stages. The structure reduces the power consumption and increases output voltage swing. The compensation is performed by simple mill...
متن کاملSingle Miller Capacitor Frequency Compensation on Three Stage Amplifier for Large Capacitive Load
This paper presents the analysis of single Miller compensation scheme which is used in three-stage CMOS operational amplifiers. single Miller compensation capacitor in three-stage amplifiers can significantly reduce the total capacitor value, and therefore, the overall area of the amplifiers without influencing their stability. In this paper we reviewed achieving high stability in addition to w...
متن کاملSingle Miller Capacitor Feedforward Frequency Compensation on Three Stage Amplifier for Large Capacitive Load
This paper presents the analysis of single Miller capacitor feedforward compensation scheme which is used in threestage CMOS operational amplifiers. single Miller compensation capacitor in three-stage amplifiers can significantly reduce the total capacitor value, and therefore, the overall area of the amplifiers without influencing their stability. Feed forward technique is effectively combined...
متن کاملA Compact Operational Amplifier with Load-Insensitive Stability Compensation for High-Precision Transducer Interface
High-resolution electronic interface circuits for transducers with nonlinear capacitive impedance need an operational amplifier, which is stable for a wide range of load capacitance. Such operational amplifier in a conventional design requires a large area for compensation capacitors, increasing costs and limiting applications. In order to address this problem, we present a gain-boosted two-sta...
متن کاملA High-Frequency Fully Differential BiCMOS Operational Amplifier
This paper presents a high-frequency frdly differential BiCMOS operational amplifier designed for use in switched-capacitor circuits. The OP amp is integrated in a 3. O-GHZ, 2~m BiCMOS process with an active die area of 1.0 mm x 1.2 mm. This BiCMOS op amp offers an infinite input resistance, a dc gain of 100 dB, a nnity-gain freqnency of 90 MHz with 45° phase margin, and a slew rate of 150 V/ p...
متن کامل