Part Number: INA1651
I've inherited a speaker design with a INA1651 line receiver that takes a line level XLR input (differential) and outputs a single ended signal for further processing.
Several speakers are connected to the same XLR input in parallel…
Part Number: INA1651 Other Parts Discussed in Thread: OPA1622 , Hi,
For a measurement project I am trying to subtract headphone output channels of a soundcard. My output buffers are OPA1622, one half for each channel.
OPA1622 outputs is connected to IN…
Now I have looked at the documentation for INA1620 and INA1651 (and INA1620EVM and INA1650EVM).
None of them really seem optimal. INA1620 only has 1 op amp in each channel instead of the 3 op amps of a 'real' instrumentation amplifier. And INA1651 (having…
Hi Chris,
Thanks for taking the time to put that together, definitely good information to have moving forward.
I have seen the INA1651 and was planning on using it, or at least having a footprint for it on the board. In the current climate it seems sensible…
Part Number: INA1650 Other Parts Discussed in Thread: INA1651 , TINA-TI , OPA1637 , Hi there,
I've been looking at the INA1651 as a differential line driver. Section 8.6.2 of the data sheet shows a good example of a differential line driver with a single…
Part Number: INA134 Other Parts Discussed in Thread: INA137 , , INA1651 Dear Madam/Sir, Currently, I utilized Woofer audio out (line+, Line-) differential signal as the input of Audio-to-LED strip (LED will be ON/OFF according to woofer audio frequency)…
Hi Todd,
Thank you for your post. This design should be okay.
However, you may want to consider using the INA1651 instead of the INA134/137 for your receiver. The INA1651 has higher input impedance so in the event that you want to drive more than 50 receivers…
Part Number: INA1651EVM Other Parts Discussed in Thread: INA1651 Is the audio performance listed in the INA1651 EVM guide based on the actual EVM design. In most cases using ceramic caps in the audio path like this EVM does is generally avoided as these…
Hi PYTsai,
As Kai mentions, this is not recommended. Even small mismatch between R126 and R130 in your schematic will significantly degrade CMRR of the INA137. A better solution might be to use a line receiver with buffered inputs, such as the INA1651…