Other Parts Discussed in Thread: LMR50410 , LM393LV , OPA2376 Dear Expert
I would like to make a simulation of LMR50410Y3F-Q1 step-down converter. There is no simulation model in Tina or Webench Power Designer so I have to use Pspice for TI. I download…
to User473,
I searched all the op amp portfolio with the parametric search (precision, general purpose, and high-speed). There are 6 options with temperatures of 150C and above (see attached). The best match is the OPA211-HT (210C max). This is the…
The OPA145 also looks like a good choice, this file has not been recently updated so the OPA196 is not in yet, and the pricing is out of date.
OPA111A options.xlsx
Part Number: TLV9062-Q1 Other Parts Discussed in Thread: LMP7716-Q1 , OPA2317-Q1 , OPA2377-Q1 , LMV772-Q1 , OPA2991-Q1 Tool/software: Hi Team,
I'm promoting the TLV9062-Q1 to my customer to replace the competitor's solution. Could you please help check…
Connecting a capacitor on the output of an op amp can often lead to oscillations instead of the expected response. Also, the amplifier feedback resistors can interact with the amplifier input capacitance causing oscillations. These issues are called op…
Hey Edward,
The isolation resistor decreases in size as the capacitor increases because of the location of the pole created. Typically large cap loads should not be driven using the micropower amps. The location of the pole is determined based on the…
Hello Metin,
You are correct, the driving equation of your LPF will be f(-3dB) = 1/(2*pi*R*C)
The main design question you will be having is if you are trying to filter 50Hz noise, how large of a capacitor can you introduce before introducing stability…
Hello Viktorija,
The capacitor value that the customer is trying to drive is very large. Therefore I believe that the circuit will have to be "slowed down" significantly to drive it, especially in unity gain configuration. This forum post goes into…
Hello Ryuji-san,
Here is a very good blog on general capacitive load driving using an amplifier:
http://e2e.ti.com/blogs_/b/thesignal/archive/2012/06/05/taming-oscillations-the-capacitive-load-problem.aspx
Much analysis and solutions are shown in…
