DS26LV31T: output impedance in power off condition

yang zhenglin

Prodigy 30 points

Part Number: DS26LV31T

AM26LV31T datasheet which clearly state that high output impedance in Power-Off condition.

My question: What is DS26LV31 output impedance(high impedance or low impedance) when it is in power-off condition?

over 5 years ago

0 Hao L over 5 years ago

TI__Mastermind 25705 points

Zhenglin,

I'll look into this (maybe do some bench test) and will update you as soon as I can.

Regards,

Hao

0 yang zhenglin over 5 years ago in reply to Hao L

Prodigy 30 points

Hao,

Thank your quick response and do some bench test for me.

Have you any theoretical analysis for this?

Zhenglin

0 Hao L over 5 years ago in reply to yang zhenglin

TI__Mastermind 25705 points

Zhenglin,

I guess the device would be in high Z state but I need some experiments for verification.

Regards,

Hao

0 Hao L over 5 years ago in reply to Hao L

TI__Mastermind 25705 points

Zhenglin,

As I checked in lab, the output (both D+ and D-) shows very small leakage (less than 10uA) to Vcc or ground pins. The device is built in a CMOS process. Therefore the high Z states is due to lacking of current path through the off-state PMOS/NMOS transistors. Please let me know if you have any more questions.

Regards,

Hao

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DS26LV31T: output impedance in power off condition