Part Number: OPA2836 Other Parts Discussed in Thread: LM6172 , OPA2830 , OPA2690 , LMH6658 , , OPA2891 Tool/software: Hello,
I am looking for an equivalent part to OPA2836IRUNR with the following specs:
+/- 5V supply
Similar or better GBW stand…
Other Parts Discussed in Thread: OPA2690 , OPA355 Hi Sir,
I need help using the filter design tool!!!
My customer request is the center freq. is 3.5MHz, the pass bandwidth is more than 4MHz.
However, I cannot use the filter design tool to get…
Part Number: THS4222 Other Parts Discussed in Thread: TLC074 , OPA2690 , OPA2890 Hi,
I need support about a simple circuit involving THS4222.
Attached you can see the circuit.
The input signal is a sinewave 3Vp 50Hz (0 offset), the output signal…
Hello Miranda,
The LMH6612 should certainly be able to meet rise time requirements below 10us, are you saying that when going below 10us the output begins to oscillate?
If you are just looking for a device that can meet the GBW & slew rate requirements…
Look at the OPA2690, similar supplies and speed, and internal topology,
Ignore that 900Mhz on the LMH6609 gain of 1, what you want is the gain of 2 line driver BWof 280Mhz where where the OPA2690 is 220Mhz gain of 2.
Well, and taking Kai's file for a start, we can adjust this to a +/-5V OPA2690 solution as thus, we would need to increase the gain for the DC servo path to keep its output in range, that will of course be increasing the NG reducing the BW for the now…
Before you get too far with this, I tried to find an internal cross and failed - not sure what this means, but it is unlikely any model updates are available.
The OPA2690 is a similar topology internally, but not as high a supply voltage,
Hi Michael,
Thanks for your inputs. LM6172 is a solid balance between cost and performance for the specifications that we need. We'll take into account your note regarding input noise, as well as consider OPA2690 as an option where we have narrower…
Hi Danilo,
Looks like the OPA690 will meet your requirements, or the OPA2690 if you need the dual package.
OPA690 data sheet, product information and support | TI.com
OPA2690 data sheet, product information and support | TI.com
Best,
Sam
Hi Abhi,
Here is one way to predict the isolation resistor OPA2690 needs for a given cap load using TINA-TI simulation.
I've used the OPA2690 model in simulation and used a large L and large C to open the loop and look for phase margin.
For the…
