MPC 506 power supply?

David Biondi

Other Parts Discussed in Thread: MPC506

Dear all,

I see from the datasheet that I can use the +-5V for the MPC506 power supply,but how it changes its electrical caracteristics?

ciao

David

over 15 years ago

0 Bob Benjamin over 15 years ago

TI__Guru** 113765 points

David,

The primary difference is the Ron of the switch. See the normalized curve at the top right side of page 8 of the datasheet. Basically it increases as you lower the supply voltages.

Best regards,

Bob B

0 David Biondi over 15 years ago in reply to Bob Benjamin

Prodigy 160 points

Dear Bob,

Thanks for your fast answer, what the ROn is?And its increase what it means?

ciao

David

0 Bob Benjamin over 15 years ago in reply to David Biondi

TI__Guru** 113765 points

David,

Ron is the resistance of the analog switch when the switch is 'on'. It becomes very significant when you have low impedance connected on either side of the switch, as a voltage will be dropped across the switch resistance. The maximum resistance is 1.5K ohms for +/-15V supply and would be maximum of (1.3) *1.5K ohms or 1.95k ohms for +/-5V supply.

Best regards,

Bob B

Data converters

Data converters forum

MPC 506 power supply?