Part Number: OPA1637 Hi team,
My customer is using the OPA1637 in an audio preamp, and the datasheet is giving conflicting information on how to terminate /PD input (powerdown) when powedown is not used.
Some examples and text tell them to tie to V+ rail…
Part Number: OPA1637 Other Parts Discussed in Thread: THS4561
Morning Iwata-san if you are still looking at this,
Well this noise model issue has been continuing over on the amplifier forum comparing the simulated input current noise on the THS4561…
Hi Jung,
I have modified the simulation with respect to the 8Vpp differential input and required 5.6Vpp differential input voltage range of AK5554.
OPA1637Bessel-LPF+AK5554_Diff8Vpp.TSC
Regarding the input DC blocking caps, it depends on the system requirement…
Part Number: OPA1637 Other Parts Discussed in Thread: OPA1656 Reviewing this device for some audio work, the front page noise plot is ok, kind of a high noise corner but good for JFET,
Here is that from the front page, a little over 30nV at 10Hz,
The…
Hey Hailang,
The OPA1678 can do this however I have provided additional examples since I don't know much information regarding the application. If you need further assistance for a specific design I would be happy to help. I would need some preliminary…
Part Number: OPA1637 Other Parts Discussed in Thread: LME49724 Hi all,
Now I'm trying designing a LPF based on a full differential op amp opa1637. Moreover, the LPF needs a 0.2V/V attenuation and 100kohm input impedance. But t seems that the Filter…
Part Number: OPA1637 Hi team.
Now I want to use the OPA1637 for my mixer project, but I have some question for that:
1. As we know, the fully-differential Amp can benefit a lot for the noise, but I am confused about the specific improvement in the real…
Part Number: OPA1637 Other Parts Discussed in Thread: TPA3251 Trying to make sure I understand the extant work on this application (section 9.2.1.1 in the OPA1637) as part of some article work for AX.
I see now the stated DAC output current is in fact…
Part Number: OPA1637 Other Parts Discussed in Thread: PCM1795 , , OPA1611 , OPA1652 , OPA1632 , THS4561 , TLV320ADC5140
Starting to review this more recent audio FDA,
On this app circuit, I certainly get the CM level shift issue, but there is a inconsistency…
Part Number: OPA1637 Other Parts Discussed in Thread: LME49720
Hello experts,
I got question about merit of OPA1637 (Fully Differential Amp) compared with differential output circuit made by LME49720 (dual ch amp).
If we use audio signal(20Hz~20kHz…