This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Part Number: OPA2211A
I want to do some test on the amplifier in cryogenic temperatures. I am wondering if it is made by SiGe HBTs only? SiGe HBTs can work in cryogenic temperatures, and Si BJTs or CMOS cannot work in cryogenic temperatures. It would be great if this amplifier is made by SiGe HBTs only.
Also, in the functional block diagram, there are some PNP transistors. Are they SiGe PNP? I heard that SiGe PNP does not work well. What is the performance/properties of your SiGe PNP? Do you have a datasheet?
I am sure you understand that TI cannot reveal detailed information about the processes used to fabricate the Precision Amplifiers op amps. The process details and device characteristic are TI Company Proprietary information. We cannot provide any process datasheets that reveal detailed, confidential information about our device designs or fabrication processes.
All of the SiGe HV op amps incorporate both NPN and PNP transistors. Both the NPN and PNP transistors are SiGe. Here is a list of some of our SiGe HV op amps:
OPA211, OPA2211 (bipolar input)
OPA828 (JFET input)
OPA202 (Super-beta Bipolar input)
OPA207 (Super-beta Bipolar input)
OPA145 (JFET input)
OPA140 (JFET input).
I hope this is helpful to you in selecting the devices you wish to test at cryogenic temperatures.
Precision Amplifiers Applications Engineering
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
If you have further questions related to this thread, you may click "Ask a related question" below. The newly created question will be automatically linked to this question.
In reply to Thomas Kuehl:
Thank you for your reply.
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. 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.