CIRCUIT060029: Regarding choosing current sense amplifier

Hello Bhuvaneshwari,

Could you provide your available power supplies, your desired gain, and your signal frequency of interest?

The amplifier I recommend may not be low cost, as your existing requirements are considered higher performance.

Best,

Alec

Hi Bhuvaneshwari,

We have developed a tool for selection of best devices for designing current sensing circuits (Shunt based), you can find the tool here: https://dev.ti.com/gallery/view/HSCurrentSensing1/High_speed_current_sensing_circuit_design_tool_1_20241015061507/ver/1.0.0/

You can insert all the circuit information in the tool (power supply, gain, shunt value, etc.) and click "design circuit" button below. You will get all the important circuit parameters on the screen and you can easily see the circuit performance. 

Otherwise, as Alec mentioned, if you provide us the important circuit parameters (supply, shunt, gain or input output voltage range, signal freq/ pulse width, etc.), we can suggest a device for the use case.

The link I have provided is an edited version of the main tool, which you can find here: Analog circuit design studio. 

Thanks 

Aditya Gosavi

Hi Aditya,

Thanks for your reply,

Please find the below mentioned spec.

kindly suggest an op-amp of voltage feedback with Supply (+/-5V) and minimum bandwidth 800MHz and a slew rate of 1000V/us .

thanks,

Bhuvaneshwari

Hi Bhuvaneshwari,

We would love to hear your feedback for the above mentioned tool: on its usability, accuracy and any improvements you'd suggest. Please let us know your thoughts!

Thanks

Aditya Gosavi