Part Number: THS4524
I am looking to perform a fully differential integrator, wit the THS4524 of TI.
Performing some simulation into TINA a got a pretty cool model of integrator. I seems to be too easy. So please, your comment and help are welcome
Jacob Freet High Speed Amplifiers
In reply to Jacob%20Freet:
As Jacob mentioned, stability of your circuit could be the primary issue for the integrator. If we do the stability analysis of your circuit, it does look like the intersection of THS4524 open loop gain curve (THS452x_Aol) with the Noise Gain curve is at -20dB/decade indicating a stable circuit. Normally, if the intersection is at > -20dB/decade (or say -40dB/decade), it is then possible that the amplifier is unstable. But, I believe this wont be the case with the integrator circuit because the THS452x is unity gain stable and the minimum Noise Gain for your circuit is essentially 1V/V or 0dB.
To learn more about the FDA stability - especially Noise Gain and Open Loop gain and how their interaction affects stability (if you are new to the FDA world), I would recommend going through the TI Precision labs video here:
In reply to Rohit Bhat:
Thanks for the feedback,
PLease find down under the TINA file associatedDiff_Int.TSC
In reply to user5246204:
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.