DAC7760: DAC7760 recommended gate configuration for SCLK line

Blake Cook

Part Number: DAC7760
Other Parts Discussed in Thread: SN74LVC2G14, SN74LVC2G08, SN74LVC1G97

Tool/software:

I am working with a existing design using the DAC7760 but they have not implemented the recommended gate devices for the Latch and SCLK lines when using more than one DAC7760.

Is there a known logic IC that would work best when having two DAC7760s in an assembly?

2 months ago

+1 Joseph Wu 2 months ago

TI__Guru* 95185 points

Blake,

We don't have any specific device recommendations to construct the logic, but you could use a two-channel inverter (SN74LVC2G14) and a two-channel AND (SN74LVC2G08) to gate the clock.

https://www.ti.com/lit/gpn/sn74lvc2g14
https://www.ti.com/lit/gpn/sn74lvc2g08

Additionally, you can construct the two-input AND gate with one inverted input using the SN74LVC1G97. Here's a figure from the datasheet to show how the device is connected.

https://www.ti.com/lit/gpn/sn74lvc1g97

Joseph Wu

+1 Joseph Wu 2 months ago in reply to Joseph Wu

TI__Guru* 95185 points

Blake,

Here's the figure from the SN74LVC1G97:

Joseph Wu

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DAC7760: DAC7760 recommended gate configuration for SCLK line