THS1007 Voltage Interface

Ed Wood

Other Parts Discussed in Thread: THS1007

Hello,

I am trying to connect a THS1007 in my design. I see that the D[9:0] and RA[1:0] are reference to the BVdd signal, and can be hooked to 3.3V. The data sheet is not clear about the conv_clk, sync, R/nW, and CS[1:0] signals, what rail those are reference to (either BVdd or DVdd), and if those can be reference to 3.3V. Does anyone have an answer?

over 13 years ago

0 Tom Hendrick over 13 years ago

TI__Guru**** 169265 points

Hi Ed,

On the THS1007, the CONV_CLK, CS[1..0], R/nW are actually part of the DVdd domain of the chip. They should be referenced to a 5V (nominal) source. I believe the SYNC output is referenced internally to the BVdd domain - will try to verify that for you later today.

0 Tom Hendrick over 13 years ago in reply to Tom Hendrick

TI__Guru**** 169265 points

Hi Ed,

Sorry for the delay here - SYNC is referenced to the DVdd domain on the THS1007.

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THS1007 Voltage Interface