- #1
Vishera
- 72
- 1
Homework Statement
Homework Equations
The Attempt at a Solution
Here is my attempt: http://i.imgur.com/oKjwI8O.png
The problem is at the end, I get 0=0. What did I do wrong?
Vishera said:Homework Statement
Homework Equations
The Attempt at a Solution
Here is my attempt: http://i.imgur.com/oKjwI8O.png
The problem is at the end, I get 0=0. What did I do wrong?
berkeman said:Can you post a drawing of your opamp circuit, with the resistor names labeled? Thanks.
rude man said:You sure it isn't Vo = 3V2 - 2V1?
rude man said:You sure it isn't Vo = 3V2 - 2V1?
Vishera said:Is there any specific reason why you can't the following equation to:
to:
vo=3v1-2v2?
I understand that I get 0=0 but why do I get 0=0? Algebraically speaking, why would it matter if it were vo = 3v2 - 2v1 or vo=3v1-2v2?
donpacino said:combing your two equations the way you initially had them -R2/R1 would have to equal three.
that would imply that you have a negative resistance, which is impossible
An operational amplifier, or op amp, is an electronic device that amplifies the difference between two input voltages. It has a high gain and is commonly used in analog circuits to perform mathematical operations such as addition, subtraction, differentiation, and integration.
When designing an op amp circuit, some important factors to consider include the required gain, bandwidth, input and output resistance, power supply voltage, and the type of op amp (e.g. single-ended or differential). Other considerations may include noise, stability, and temperature effects.
There are several types of op amps, including general-purpose, high-speed, low-noise, precision, and instrumentation op amps. General-purpose op amps are commonly used in audio and signal conditioning applications, while high-speed op amps are used in high-frequency circuits. Low-noise op amps are ideal for sensitive measurement applications, and precision op amps are used for accurate signal amplification. Instrumentation op amps are designed for precise measurement and data acquisition systems.
The feedback network of an op amp circuit is crucial in determining its overall performance. The type of feedback network used will depend on the specific application and desired circuit characteristics. Some common feedback topologies include inverting, non-inverting, and differential configurations. It is important to consider factors such as gain, stability, and input/output impedance when choosing a feedback network.
Some challenges that may arise when designing an op amp circuit include noise, stability, and frequency response. Noise can affect the accuracy of the circuit and can be minimized by using low-noise components and proper grounding techniques. Stability issues can arise due to the interaction between the op amp and feedback network, which can be addressed by selecting appropriate components and ensuring proper compensation. Frequency response can also be a concern, especially in high-frequency applications, and can be improved through careful component selection and layout design.