AM26C32 internal resistance

Hiroshi Sato

Expert 2590 points

Hello,

Our customer now designing external fail-safe circuit and they want to know about input resistance.

In the datasheet 8.2 Functional Block Diagram, A or B input have 288k, 17k and 1.7k ohm resistors,

and there values are NOM(nominal).

Could we get min/max value for each resistor ?

Thanks and best regards,

Hiro

over 9 years ago

0 Michael J Schultis over 9 years ago

TI__Mastermind 24915 points

Hello Hiro-san,

Both A and B have these resistors. It is just that for the A inputs the 288k resistor is to VCC while for the B inputs the 288k resistor is to GND.
As for the resistance values, I will have to see if we have that information.

Best,
Michael

0 Ron Michallick over 9 years ago in reply to Michael J Schultis

TI__Guru**** 157416 points

Hiro-san,

Max expected variance is +/-20%.
Input resistance will always be greater than 12k ohms.

0 Hiroshi Sato over 9 years ago in reply to Ron Michallick

Expert 2590 points

Hello Ron-san,

Thank you for your checking and replying.

We'll talk to the customer later.

Thanks and best regards,

Hiro

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AM26C32 internal resistance