Other Parts Discussed in Thread: DAC8801 I am trying to characterize some power up/down behavior we are experiencing with in an application using the DAC8801. Upon a power cycle, approximately 1-2 sec powered down, sometimes the DAC retains it's last issued…
Part Number: DAC8411 Other Parts Discussed in Thread: DAC8801 , I was testing a DAC8801 using the DAC8801 Eval board. The SPI signals are coming from ports on an STM32F407 and are all about 3.3V signals. The DAC8801 worked very well, but we decided we needed…
Hi Kevin,
I'm looking at unbuffered DACs per your advice. DAC8801 current output looked good at first glance, but then it looks like the full-scale accuracy is only 20%. Strange that its specified 20% only on the first page though, nothing about it…
Hi Cindy,
section 8.3.1 of datasheet of DAC8801 recommends the add of a compensation capacitor (C1). This cap would provide a phase lead compensation and by this decrease the ringing.
Decreasing R8 to 47R and leaving C3 at 470pF can additionally destabilize…
Hello Rajesh,
There are a few different approaches you can take here.
First is a dc REF, as described in this App Note: www.ti.com/.../litabsmultiplefilelist.tsp .
Next is a currentDAC, such as: www.ti.com/.../dac8801 .
And third, since you are employing…
Hi Tony,
my apologies for the late reply. Thank you very much for your detailed answer. You were right in the specification, 20 code deviation is a complete QRS complex so I think I try the DAC8801.
Regards,
Greg
Hi Rick,
I know this thread has grown a bit stale, but I just found it searching and wanted to chime in my interest as well.
Right now we're working on a new design, part of which uses R-2R MDACs (the DAC8801 / DAC8803 specifically) in a digitally-controlled…
