Figure 31 is doing an 8 to 1 using a wired or mux to combine the two output stages. I think you want 2 layers of OPA4172 so the outputs of the 10 layer one would feed into a 2nd layer of OPA4172 -
you do not need to take interstage termination losses…
Hi Paul,
The customer tried OPA4172 simulation and worked well.
He has an additional question, could you please advise.
---
I confirmed the model of OPA 4172, a valid simulation waveform appeared.
Thank you for your support.
Also I have…
Hi Vasil,
Thank you for your question. The OPA1689 should release this coming year. If you do not need the leadless package then I would recommend using the OPA4172.
Hello Steve,
Great question! For specifications such as input bias current, on some parts TI specifies a T = 25C value as well as an extended or 'full [temperature] range' value. For the THS3001, the maximum value listed at T = 25C is the 'typical'…
Other Parts Discussed in Thread: OPA4172 , OPA4171 , OPA171 , TLV2374 I use the quadruple OpAmp OPA4172 in a new circuit. One of the 4 opamps is used as a comparator:
Pin 2: 100k to GND, 460k to Vin (voltage to be compared)
Pin3: 10k to stable 2.5V…
Sergio,
OPA4172 diodes to GND & VCC
TLV272 diodes to GND & VCC
LM2902 diodes to GND only
LM2904 diodes to GND only
LM2903 diodes to GND only
OPA377 diodes to GND & VCC
For LM290X, diode to GND current may cause phase reversal (inversion…
Charles,
That is a difficult challenge.
The closest performance match and low VIO would be TL054A, but that has a steep price penalty.
OPA4172 is somewhat close for less money.
Hi Gunter,
Are you using the device in an audio application? If so, consider the OPA4172 or TLV4172 devices. They are recent CMOS devices with good specs and nice audio performance/sound. The input common-mode ranges are different between these devices…
Hello Mr. Tim Green,
1. OPA316 Op-Amp suggested by you is not available in SOIC-14 package. We are specifically looking for same package to maintain comparability with our previous designs. As per your inputs i selected which are in SOIC - 14 package…
Other Parts Discussed in Thread: LF347 , OPA1652 , OPA4172 Hello,
Our customer is trying to replace a LF347 operational amplifier with the OPA1652. Circuit implementation < below >.
The circuit output labeled as PIN_C is an external connection point…
