Part Number: OPA690 Other Parts Discussed in Thread: OPA656 , OPA820 , TINA-TI , OPA810 I had to replace an OPA in an existing design. Because of output current drive requirements I selected the OPA690. In my application I need to drive a speaker which has…
Part Number: OPA690 I downloaded the model for the OPA690 from the TI website. I added the model to my design, and tried to simulate. I used the .lib and .olb files unaltered. When I ran the simulation, I got the following errors:
ERROR(ORPSIM-15108…
Part Number: OPA690 Hi Team: My customer use OPA690 and wants to do the application of active filters. The input signal is negative pulse signal with the range of -10mV to -1V. Please help confirm its power supply mode, Is ± 2.5V or ±5V appropriate?…
Part Number: OPA690 Hi. I am testing a LP filter with cut-off freq. at 10 MHz. The filter is multiple-feedback type with gain=1, and Butterworth design, realized with OPA690 OpAmp. When the LP filter is tested with an ADC board as output, the resulting…
Part Number: OPA690 Other Parts Discussed in Thread: OPA691 Hi Team, Our customer would like to operate the OPA690 using -Vs= -2V and +Vs= 7V. I have checked the datasheet and it seems that the positive supply exceeds the recommendations, but is still within…
Other Parts Discussed in Thread: OPA690 In my system I am thinking to power an OPA690 from +5V and -5V during normal operation. At power up however, the -5V rail will come up well ahead of +5V. Just wondering if I need to be concerned about that?
Thanks…
Hi Leonard, I cannot see anything directly, however with power supply sequencing I don't know what voltage is on each node and what is being driven by the previous stage, so its just a cautionary statement to ensure nothing untoward from the previous…
Other Parts Discussed in Thread: OPA690 Hi I was planning on using an AD8184 4:1 analog mux but the slew rate is only 750V/uS, then I noticed that the OPA690 outputs go into a Hiz state when the part is disabled. My question can multiple outputs be combined…