ADS8598H: Questions about Design tools

Hi team,

Could you give me any feedback on above customer questions?

Best regards,

Takeshi Sasaki

Hi Takeshi,

The answers to your customer's questions:

A1.  We do not have a tool to simulate oversampling function for ADS8598H, what does the customer want to simulate or check?

A2. Unfortunately, we do not have this kind of calculation tool. ADS8598H does not have internal registers so there is no need to program it, the modes of operation(parallel/byte/serial), input range and reference, all of them can be selected with the hardware pins. Also, the BW of internal filter on each channel is fixed.

Thanks&regards,

Dale

Hi Dale,

Thank you for your comment. For your question of A1, I put customer's comment below. Could you give me comment?

>what does the customer want to simulate or check?

The customer wants to check if oversampling of ADS8598H can simplify antialiasing filter. Using following TI tools provides the filter with 3 to 4 opeamps, R and C combination, but it causes the increase of footprint and price. 

http://www.tij.co.jp/ja-jp/design-resources/design-tools-simulation/filter-designer.html

They've considered if the oversampling contributes such simplification, and want to confirm the characteristics at shown in datasheet page 48. 

Best regards,

Takeshi Sasaki

Hi Takeshi,

Unfortunately, we do not have this kind of excel or software calculation tool. The frequency response curves shown in Figure 78 - 83 in the datasheet were professionally characterized and verified. 

Regards,

Dale