Hi Ervin,
Glad to hear about the availability.
Both OPA4134 and OPA1644 are good amps, but the OPA1644 is a JFET front-end with bipolar secondary and output stages. You can see that OPA1644 has higher AOL, lower THD and noise all for a lower quiescent …
Part Number: OPA1644 Hi
We 're facing a problemewith the following design
The 2 OPA1644 fails and when analysing their 15 V PWR supply is nearly ins CC (the PS fails)
Whe think that the problem comes from that it" possible tue conected card to the…
Other Parts Discussed in Thread: OPA1644 Hello,
I’ve tried to download the PSpice model of OPA1644, and run a simple simulation in Altium. But it always stops, and gives an error message:
XSpice Error: Syntax error in expression on line: 182
Line…
My application is a +-10V multichannel multiplexed sampled system running at settling times of about 1us to 0.01% ... 0.001% depending on the voltage steps needed.
The application of the OPA would be to operate as a voltage follower after a low gate…
Hi Jelly,
Many AC-specs of OPA1604 and OPA1644 are specified in 4.5 - 36V (+/-2.25 - +/-18V) supply condition, but distortion spec such as THD+N and IMD are specified in 3Vrms=8.48Vpp output case.
Therefore, we have to consider the risk of some degradation…
Part Number: TPA3255 Other Parts Discussed in Thread: PCM1681 , OPA1644 , Hey folks
I designed an amplifier based on the TPA3255EVM. Basically everything works quite well(BTL, PBTL). But when using the amp in SE-mode I get a lot noise on the Output. It…
Part Number: TL074-EP Other Parts Discussed in Thread: TINA-TI , TL074 , OPA1644 What are the output impedance for TL074IDR、TL074QDREP and TL074QDREPA?
Customer would like to do the simulation with this ZO! please help. thanks.
Regards
Brian
Sean
This is still in development and no samples are available yet.
In the meantime have you looked at the OPA1644? It can't match the low power specs of the OPA169x, but is a very good 4 channel audio opamp and comes in the TSSOP-14 package.
…
Morozov,
OPA1644 is a superior device. Almost all quad op amp have the same pinout so many op amps including OPA1644 will drop in with no other changes.
The only noticeable difference between TL084C and OPA1644 usage is input common mode range.
TL084C…
