Part Number: LME49724 Other Parts Discussed in Thread: OPA1637 Hi there,
I was looking through the LME49724 datasheet, and figure 53 gives a nice example of pairing the LME49724 for an ADC input, however, I'm after some assistance to design this product…
Hi Noel,
What is the thermal pad connected to? Or is it electrically isolated from any other pin of the IC?
Have you tried to take one of the failing units from the second prototype to the first prototype board? This could help rule out the layout…
Caleb,
The enable time is as specified in the data sheet:
Regarding the disable time it might be higher depending on external components, but it should be in the order of hundreds of micro-seconds.
You should take into account that output load and…
Part Number: LME49724 What are the recommended dimensions for the LME49724 PowerPAD thermal pad? The datasheet makes reference to them but never discloses them. Thanks!
Part Number: LME49724 I'm used to see Rf/Rg resistors in the range of 10k for common operational amplifiers, but for the fully differential ones it seems that the usual values are much lower (the demo board uses 1k, in impedance matched configurations…
Part Number: LME49724 Some chips have a strange noise with an amplitude of up to 100 μV. The picture shows a correct channel (green) and a bad channel (red). Scale in ADC codes. 1 LSB is 596nV. The length of the picture is approximately 20 seconds. The…
Part Number: LME49724 Other Parts Discussed in Thread: LME49726 I have a LME49726 output that I need to interface to the non-inverting input of a LME49724 that are both also operating on the same 5 volt supply.
The LME49724 is configured with a single…
Part Number: LME49724
We use the LME49724 for balanced audio line out as a single ended in to differential out. Recently we have been seeing some parts failing our tests by being out of spec. They fail the signal to noise limit that usually has a very…
David,
I'm glad that you found the source of the problem and that your device is working better now.
Thanks for providing this information to the community.
Best regards,
-Ivan Salazar
Applications Engineer - Low Power Audio & Actuators
