Part Number: ADS8684 Tool/software: Hi,
We set REFSEL to low, but REFIO only outputs 0.8V. RST/PD is high, so the chip is not in a reset state. Normally, when REFSEL is low, VREF_ADC should output 4.096V, right? What other reasons could cause this?…
Part Number: ADS8684 Other Parts Discussed in Thread: DAC8775 Tool/software: Hi,
According to the ADS8684 datasheet, valid SDO width in the worst case is tHT_CKDO + tSU_DOCK = 10ns + 25ns = 35ns.
I understand that as the frequency of SCLK decreases…
Part Number: ADS8684 Other Parts Discussed in Thread: ISOM8110 Tool/software: Dear team,
we want to control the RST/PD pin via optocoupler. The fast reset within <100ns can be excluded then. We are talking about the >400ns power down as the opto pulse…
Part Number: ADS8684 Tool/software: Using your ADS8684A4 channel AD acquisition chip, we are experiencing the following problems. Hardware using internal reference voltage, measured as 4.086V 1. Configuration range of 0-2.5 × VREF, when the input voltage…
Part Number: ADS8684 Other Parts Discussed in Thread: ADS8688
Hi,
I'm using the ads8684 adc with a Stm32f7 microcontroller and I can read the voltage with SPI communication on each channel (the values I get are correct)
but I cannot change the range…
Part Number: ADS8684 Tool/software: Hi,
We use the ADS8684 in one of our designs. I studied the SBAA319 document (Extending Input Voltage Range and Understanding Associated Errors for ADC With Integrated Front End). There is a principal schematic shown…
