I am looking for a DAC with inbuilt EEPROM / flash to retain DAC configuration when powered up. I need output voltage upto 15V. Please suggest a suitable Part number.
Ramakrishna D C
May we know what your application is? Do you have a requirement with regards to how much resolution and accuracy?
This DAC is to provide Excitation to Pressure Sensor.
--> Minimum Excitation Required 12.5V at Sensor end. (Looking for 15V DAC bkz if any cable loss, it is to be compensated)
--> Steps : 100mV with +/- 1mV accuracy.
--> Resolution : Min. 8 Bit (10/12/16 is better)
--> Line Regulation ≤ 0.03%
--> Load Regulation ≤ 0.01% of set voltage
--> Stability over Time (8 Hrs) ≤ 0.01% of set voltage
--> Stability over temperature ≥ 50ppm/Deg C
--> Ripple ≤ 0.2mVrms
Looking for a DAC with non volatile register/EEPROM/Flash so that it can retain set voltage. Once the required voltage is set, the DAC should generate the voltage every-time it is powered up. Excitation voltage is changed whenever sensor is changed or calibration is done.
Please suggest ASAP...
Ramakrishna D C
Since we do not have a DAC with EEPROM, i would suggest using AD5292 digipot along with a ADA4610-1 amplifier in buffer configuration to achieve your objective.
Thank you very much for the alternative idea...
AD5292 Digipot can be programmed only 20 times ? Is there any other Digipots with more no. of re-programmable NVM ?
What is the maximum current I can derive from ADA4610-1 ? Because I need more than 50mA current to drive the sensor.
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