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Tool/software:

Hi,

I was unable to perform testing earlier due to other commitments, but I have now resumed debugging this issue.

In continuation of the discussion in the link below:

https://e2e.ti.com/support/data-converters-group…

Tool/software:

Hello Team,

I was wondering if it is possible for you to provide the transfer function/frequency response of the voltage output (i.e. the output opamp, closed/open loop). In our application, we want to filter the differential…

Tool/software:

Hi,

I am working on DAC8775. 

In the datasheet of DAC8775, under alarm section, there are some error in which open circuit is one of them. 

When is the open circuit condition generated? Because there is no fault bit…

Tool/software:

Hi TI-team.

We are observing some strange behaviour from DAC8775, when testing at elevated temperatures. The board is placed in a rack system, and the…

Tool/software:

Hi,

we designed a circuit with DAC8775 following the TI EVM wiring diagrams: 

https://www.ti.com/tool/TIPD216

This EVM has been tested to pass EMC tests but…

Tool/software:

Hi team,

My customer asked for DAC solutions and we need BU's help to suggest suitable solutions.

Below list is their requirement:

1. 6 channels

2. Resolution is…

Tool/software:

Hello TI team.

In the reference design for DAC8775, TIPD216 DAC8775EVM, and datasheet it is suggested that the DAC8775 will pass IEC61000-4 test. In the TIPD216…

Tool/software:

Hi team,

I am using DAC8775 for a product that's under development. 

Steps followed to configure DAC8775:

1. Reset Register(0x01) = 0x0001;

2.  Reset Config Register(0x02) = 0x0012;

3. Select Buck-Boost Converter…

Tool/software:

Hi,

I'm trying to program the DAC8775. I followed the setup guide exactly like Brian did, but I ended up with an output of 0V, with a lot of noise. 

Status Register returns meaningful values and when I write in…

Tool/software:

Hi,

We use the DAC8775 in our PLC AO-module project.

Now we test the Settling Time of DAC8775 but the waveform is about more than 1ms, it is  slow that it is only 15-30us in the datasheet, please kindly review our schematic…

Tool/software:

hi team,

 when I read the datasheet 9.2, I  noticed that the DVDD is connected to the VCC2 of ISO7641. 

But the DVDD only connect one chip ISO7641,what about the other…

Tool/software:

hi team,

my customer is using DAC8775 and what will happen when we power DVDD after AVDD ? because the DVDD is gotten from the LDO supplied by AVDD.

I noticed that if DVDD applied first, it can reduce the output transients…

Tool/software:

Hi TI Team.

When trying to detect open circuit in current mode output, it appears that the ALARMn output is asserted only when the current setting is greater than some 18mA…

Need ADC of following specifications:

1. 8-12 channels

2. 16 bit

3. Galvanic isolation 

Hi Experts,

As you know each channel of DAC8775 can work at either current output mode or voltage output mode. And current and voltage output has separate pinouts. I am wondered can each channel…

Hi team,

We used DAC8775. For /LDC signal, we use it in Synchronous Mode now.

DAC8775 Datasheet said, if certain delay “SYNC rising edge->LDAC falling edge” 33ns is not met, invalid data will be loaded. How about the invalid data…

Hi team，

We are currently using DAC8775 and the Reset pin remains high when powered on. When I read the Device ID, it is 0x0003. Why does the value of this register change? Will the registers of DAC8775 be confused when the Reset…

The DAC8775 channels seem to share the same configuration registers. Is it true?

In my application, if I have four channels of D/A outputs, two are current and the other two are voltage outputs with different ranges. How can I accomplish…

We are using DAC8775 in our new product that is under development. We have the following questions with this device:

1. With the range of 0 ~20mA of this device, is there any offset at the low end ( 0mA ) ? if it might have some offset…

Hi TI!

We are currently validating our HW platform and want to verify the SPI and logic interface. Rise and Fall times are not specified for the SPI and logic outputs nor the rise/fall time requirements for the SPI and logic inputs…

Hi,

I want to use the DAC8775 with external +12V and -12V supplies.

A line in the datasheet has me worried:

"Note that, VNEG_IN_x is internally shorted to PBKG when the negative arm of Buck-Boost converter is not enabled."…

Hi Team,

Could you please help provide a step-by-step guideline that can help customer understand how to do calibration using register 0x08, 0x09 and 0x0A of this device?

Thanks!

Roy

Hello,

My customer has some questions of VOUT ripple of DAC8775.

The below is from the datasheet(SLVSBY7) on P12.

They want to confirm the condition of this parameter.

1. Is an optional RC filter (like the below) used in this case…

My current DAC8775 has a high heat, how to achieve adaptive power management function?

HI Lucas, 

Please find the DAC8750 schematic for 4-20mA current transmitter with 3 and 4 wire configuration. Please review and let me know you feedback if any and clarify below query.

• May…