Part Number: DAC7718 Hello,
I am using the DAC7718SPAG on a board i have designed. I am seeing the VOUT-X lines go to about 9V after I release the reset line. This seems
strange as I expected them to remain at 0V.
I HAVE THE FOLLOWING ADDITIONAL INFO…
Part Number: DAC7718 Hello,
I'm trying to control the DAC 7718 via an ATmega32 Microcontroller. I found here:
software-dl.ti.com/.../_d_a_c_8h.html
An explanation how to use this DAC, but it's still not enough, especially without the implementation…
Part Number: DAC7718 The DAC7718 datasheet specifies that AVDD/AVSS should be applied after DVDD/IOVDD. I'd like to know a bit more about the internal rail architecture, why this restriction exists, and what the consequences of violating this power-on…
Part Number: DAC7718 Hi all I trie to use the DAC7718. I have the problem to communicate with the chip. I have followed the startup sequence except for the LDAC and RSTSEL pin. In the datasheet was given that they have to pulled high. I have pulled them…
Part Number: DAC7718
Hi all, I have two questions regarding the GPIO Pins.
I'm trying to desing the startup sequence and was wondering if the GPIO Pins and SPI registers are already available without the analog power supply (AVDD), so that I can use…
Part Number: DAC7718 Hello team,
Customer is reviewing design guidelines for DAC7718 and we see a note on using Tantalum bead cap in the datasheet. However we see the EVM design is using ceramic cap. Can you please clarify? Was this note meant to list…
Part Number: DAC7718 Hello DAC team,
We are working on a project where we are writing to all channels of the DAC7718 at an 8MHz SPI clock. We have 10 DAC7718s in our circuit and we need to make sure that the data is written to each DAC in under 350uS…
Part Number: DAC7718 Hi,
I have similar question to below link.
https://e2e.ti.com/support/archive/internal/int-precision_data_converters/f/75/t/294750?tisearch=e2e-sitesearch&keymatch=dac7718%20gain
0.0015% is right value in 16bits setting.
At 12…
Part Number: DAC7718 Dear DAC team,
We are using the DAC7718 and it looks like the voltage values that we are sending work fine until we send values above 10VDC.
If we end up sending any voltage below 10VDC then the value is considered to be 10VDC only…
Part Number: DAC7718 Hi,
There is wrong offset and abnormal output in power-on/off as below description.
1. OFFSET_A is around 2.6V at 000h with dual supply. When it's 800h, OFFSET_A was 0V.
2. Output is around -5V with RSTSEL->IOVDD, /USB/BTC ->…
