High-speed DAC 175C selection

Hi Peter,

  Since the original thread was old, and you did not give any specifics of performance required for the high-temp DAC, I've split this to a new thread.  Please provide the requirements for the DAC, and we'll see what devices at high-temp could be applicable.

Thanks for inquiring on E2E.

~Leonard 

Hi Leonard,

Thanks for your reply.

My brief wishlist is:

• 175C ambient operation
• 14 bit resolution
• 3 Msamples/sec update rate
• serial interface (SPI or similar)
• standard SOP/SOIC package preferred
• digital Vdd 3.3V preferred
• analogue Vdd - unipolar preferred
• wideband SFDR better than 70dB for 100kHz output

Regards,

Peter

Hi Peter,

 Using the DAC Selection Tool: www.ti.com/product/DAC8163/compare#p1021=1;1&p596=2;10  , the only >3MSPS HiTemp DAC I see is the DAC7811 http://www.ti.com/product/dac7811 , but it is 12-bits and 125C.

Even looking at the -EP/Space products, the DAC8831-EP is also 125C, 2MSPS: http://www.ti.com/product/dac8831-ep .

I also looked at the -HT portfolio, some of these devices operate up to 210C, but no DACs in that product line. 

I've asked the HiRel group to also look, I'll let you know as soon as I get an answer.

~Leonard