Part Number: OPA683 Other Parts Discussed in Thread: OPA684 I have been doing some TINA spice simulations with both the OPA683 and OPA684.
The non-inverting input is connected to ground, and the inverting input is connected to a small signal input and…
Other Parts Discussed in Thread: OPA683 , OPA684 Hi E2E,
I have a customer who's testing the OPA683 in TINA with the following setup:
+V rail = 5V
- V rail = GND
+ input = Sine wave, 200kHz, 200mVpp, 2.5VDC offset
Gain of 200
Disable is tied to 5V …
Hello Venugopal,
With single supplies you will need to shift the common mode of the DAC to that of the op amp, or you can use an op amp with an input common mode range that goes below the negative rail.
It may be easier to add a -5V supply.
Loren …
Morning Ryan,
You sure have a lot going on here, without getting too deep into it couple of observations
1. Your high gain cascaded stages are broadband when you say you have a noisy environment - are you sure you don't want to do a little bit of bandlimiting…
Other Parts Discussed in Thread: OPA683 , OPA684 hello:
when i go through the pdf document of Analog Engineer's Circuit: Amplifiers, i can see the descrpition as below:
can you explain why the first formula is 2.5V-(-2.5V), but the second formula…
Morning Mahsa,
I was able to recover a working version of my SKF design tool, running that with the 1mA OPA683 gave this solution - the flows are trying to reduce R's to reasonable levels to improve the noise - this is a +/-5V design, but maybe could…
Part Number: LMH6702QML-SP Other Parts Discussed in Thread: LMH6702 , THS3217 , THS3215 , VCA820 , OPA695 , THS3491 , OPA683 , OPA684 We are using the LMH6702 for an aerospace application and would like to achieve the best CMRR available. I understand one of…
Update from the customer:
Restarting does not help but I think it has something to do with the parts I use. Right now I just ran the simulation three times and it runs with valid outputs. However if I change the op-amp in the post amplifier circuit it…
Other Parts Discussed in Thread: OPA890 , OPA836 , OPA684 , OPA690 , OPA683 , OPA830 Hello ,
I 'm driving a 16bits SAR ADC (from ADI) using the OPA890. The driver consists of 2 single OPA890 to generate at the ADC inputs two signals in opposite phase with respect…
Other Parts Discussed in Thread: OPA835 , OPA836 , OPA2889 , THS4281 , OPA890 , LMH6618 , LMH6645 , OPA683 , LMH6723 , OPA684 do you have suggestion part to replace LT6233-10?
