Part Number: REF6141 Other Parts Discussed in Thread: DDC316 , REF3140 , , OPA350 , REF35 Good afternoon,
In one of my designs I am using a DDC316. In the reference schematic in the datasheet of the DDC316 (p.19 Figure 15), an external reference is supplied…
Part Number: DDC114 Good day,
In our equipment, we are using DDC114 ADC. Currently, we are trying to minimize the noise and improve the long-term stability of data acquisition.
For reference voltage generation we have been using the recommended circuit…
Hi Edu,
CONV should already be latched to the main clock because they’re both generated from the same master clock on the FPGA and both get generated at the same point in the clock cycle.
Thinking about the 5V AVDD supply, is there anything like…
Part Number: REF3140 The datasheet of REF3140 (sbvs046d.pdf) shows a note in the package outline page (pg 25) recommending to "Reference JEDEC registration TO-236". The JEDEC specification however shows two options: AA and AB. Which one applies to the…
Hi guys,
One of my customers is seeing an output voltage overshoot during startup, but only when the ambient temp drops to below about -30degC. Is this known behavior and what do you suggest to eliminate it?
Thanks!
Jason
Hello Mark,
Please find below the comparison table between the various reference chips.
These were some of the parts that we looked at and we have used REF3040 and LM4140 in our higher channel density devices.
LM4140
REF3040
REF3140
REF3…
Part Number: REF5040 Other Parts Discussed in Thread: REF3140 This customer has failed EMC testing and identified the REF5040 as being the culprit. Once the device is replaced with REF3140, the board passes the test. Can you please provide any insight…
Part Number: ADS1252 Other Parts Discussed in Thread: OPA350 , REF5040 , REF3140 Hello,
What refenrece chip would you reccomend to add as external ref value to ADS1252.
Greatings Matej
Hi Christo,
I don't think I will be able to provide you with PCB track resistance, that is more of a spice optimizer problem and not a device/application issue.
In your application I can offer some advice or at least pose some questions. The idea…
Brad,
In test mode, there isn't much that affects the noise - the reference is the main contributer. To a much lesser extent: the power supplies maybe, CLK jitter maybe, the point in time during the period that the data is read back (between /DVALIDs…
