Part Number: OPA4990 1. Is the short-circuit current of +/- 80mA for 4 channels or each channel?
2. When the load increase, this current will decrease, right?
3. How will the open-loop output impedance affect on the max load current?
4. Does the X2QFN…
Part Number: OPA4990 Other Parts Discussed in Thread: OPA4197 , OPA2990 Hello Does OPA4990 have POR? My customer wants to use an OpAmp that doesn't have POR to avoid inrush current at POR release timing.
Regards, Oba
Part Number: OPA4990 Other Parts Discussed in Thread: LM2902KAV , OPA4171 , , TLV9154 Hi Support team
my customer would like to optimize the performance of Op-Amp for low-side current sense. (LM2902KAV, OPA4990, OPA4171.)
The Op-Amp Circuit is as below…
Part Number: OPA4990 Hi Support team
since the noise coupling, my customer would like to increase the output cap to maybe 0.1uF to filter the noise,
the AC_L1 & AC_N1 is 50-60HZ AC sin wave AC input
the application is as following, pls kindly let…
Part Number: OPA4990 Other Parts Discussed in Thread: OPA2990 Hi Team,
I have two questions.
[Q1]
Could you please let us know RTM of OPA4990IPWR(TSSOP) and OPA4990IRUCR(QFN)?
[Q2]
Do you have plan of development of VSSOP PKG?
If yes, could you please…
Part Number: OPA4990 Other Parts Discussed in Thread: TLV9304 , , OPA4991 , OPA2991 , TLV9352 , TLV9354 Hi sirs,
Please kindly suggest if we have p-p solution to replace MC33174DT.
Vin 40V, 4Ch.
Thanks a lot!
BR,
Sean Liao
Hi Michael,
The POPA devices are pre-production samples. Once the device RTMs the "P" device will be removed and only the OPA will be available. I would recommend the OPA4991 or OPA4990 over the OPA417x device. The OPA4990/1 have better performance, are…
Raymond,
The TL494 example doesn't go to 95%. Below is a quad op amp, solution. C2 should be 1uF to reduce reference voltage ripple. However the simulation crashed that way. All four op amps are OPA4990 channels (LMV321 model inserted twice because…