I have just implemented AD5685R in a new design however when powering up the system the AD5685R circuit (TSSOP16) get very hot.
If I strip of everything surrounding the circuit except for connecting 5V to Vdd and pin 10 (GAIN) and 0V to GND…
Yes you can use 2.048V and 4.096V external references.
Please check these thread, should be applicable to your case too:
When using the internal reference for only internal DAC, not for external circuits, Should VREF pin be decoupled to GND with something capacitor for the internal reference? Or Is it OK to be opened?
Attached is a scope capture of ~RESET being held low indefinitely (the DAC output remains low until reset is released).
I have also attached a 5 ms ~RESET pulse scope capture (I have varied this pulse length but the behavior is the same). There is SPI data…
Apologies for the delay. Are you referring to AD5685R? There is a possibility that the part has been damaged. Have you checked if the part is still functional? Will you be able to check the voltage level of the internal reference and check…
AD5681R: Tiny 12-Bit SPI nanoDAC+, with ±1 LSB INL and 2 ppm/°C Reference
AD5682R: Tiny 14-Bit SPI nanoDAC+, with ±2 LSB INL and 2 ppm/°C Reference
AD5683: Tiny 16-Bit SPI nanoDAC+, with ±2 (16-Bit) LSB INL
The new quad AD5686R/AD5685R/AD5684R nanoDAC+TM is a family of 16-bit/14-bit/12-bit, rail-to-rail, voltage output DACs. This family offers huge performance in a tiny package.
What is new?
The nanoDAC+TM family employ a new addressing scheme that allows…
Q1. What is new?
A1. The nanoDAC+(TM) family offers improved analog performance in terms of INL and glitch energy specifications.. Some members of the family, those with a part number ending in 'R', for example AD5686R, include a low drift…