TLC073 shutdown input levels

Tim Edwards

Other Parts Discussed in Thread: TLC073

What is the required input high voltage on the TLC073 to guarantee normal operation? The datasheet specifies <0.8V to be sure the part is in shutdown; we would like to drive the pin with a 3.3V CMOS signal referred to the amplifier's negative power rail, powering the amplfier from a single rail 6.5V to 7.5V supply.

over 10 years ago

0 Ken Dillinger over 10 years ago

Expert 1220 points

The datasheet says 2V relative to the VSS terminal.

-Ken

0 Marek Lis over 10 years ago

TI__Guru 63700 points

Tim,

Recommended operating conditions (see table below) specify for TLC073 normal operation require minimum voltage on SHUTDOWN pin of 2V or greater relative to the voltage on negative supply (V-) - ground terminal. Thus in your case with single supply 6.5V to 7.5V, for normal operation SHUTDOWN pin must be between 2V and 6.5V or 7.5V, respecitvely.

0 Tim Edwards over 10 years ago in reply to Marek Lis

Prodigy 80 points

Thanks Ken and Marek. I searched the datasheet for mention of the SHDN pin and missed the obvious entry for 'shutdown'! Sorry to bother you with something that's actually covered in the datasheet.

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TLC073 shutdown input levels