FAQs AD7606: FAQ

AD7606: FAQ

Created over 4 years ago
Updated 2 months ago

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A common question on the AD7606 is what is the tolerance of the 1M ohm input impedance?

A common question on the AD7606 is what is the tolerance of the 1M ohm input impedance? This can become important when there is a high external resistance on the analog input, greater than 10k ohms for…
AD7606 - connection of unused channels

Q: I will not be using all 8 analog input channels. What should I do with the unused channels? A: All unused analog input channels must be connected to AGND.
AD7606 - grounding considerations

Q: Are there special grounding considerations for the AD7606? A: At least one ground plane should be used. It can be common or split between the digital and analog sections. In the case of the split…
AD7606 - incorrect output code

Q: I am not getting the expected output code. What am I doing wrong? A: Give the part a RESET after power-up to ensure proper configuration. Also ensure you have a stable reference (if external is used…
AD7606 - operating at half the range setting

Q: The AD7606 seems to be operating in half the range I am setting. What am I missing? A: Check how you are setting the range pin, as this should not be changed at the same point as issuing a valid CONVST…
AD7606 - powerup sequence

Q: Is there a power-up sequence that I should follow in operating the AD7606? A: Page 11 of the AD7606 datasheet shows that VDRIVE is dependent on the AVCC so it is worth noting that the AVCC must be…
AD7606 - unipolar range configuration

Q: The AD7606 can measure across +/-5V or +/-10V but I don’t really need to measure negative voltages. Can I configure the AD7606 to measure across the unipolar range and still get 16 bits resolution?…
AD7606 - Where can I find schematics for the EVAL-AD7606EDZ board?

Q: Where can I find schematics for the EVAL-AD7606EDZ board? A: The EVAL-AD7606EDZ schematic is included in the technical note that comes with the EVAL-AD7606 software. The software can be downloaded…
How to provide single ended unipolar input to SMB connectors of evaluation board?

For single-ended operation you need to place the jumper in Vx- line to position A And then write to the corresponding register: