ADS1014: Input-output capacity on pins

Roberto Peretti

Part Number: ADS1014

I need to know the input-output capacity of ADS1014 on analog differential ports, on I2C serial port, and on Alert/Data Ready port

over 2 years ago

0 Scott Cummins over 2 years ago

TI__Mastermind 31655 points

Hello,

Can you clarify what you mean by the input-output capacity? The current handling capabilities are described in the absolute maximum specifications section of the datasheet. Every pin except the power supply pin is capable of handling +/- 10 mA of current as an absolute maximum. The allowed analog and digital input voltages are also described in this table.

Regards,

Scott

+1 Roberto Peretti over 2 years ago in reply to Scott Cummins

Prodigy 10 points

From the specification of I2C, it's important to know the input capacitor load of every device on the bus.

Voltage and current aren't enough to calculate total capacitors on the bus.

0 Scott Cummins over 2 years ago in reply to Roberto Peretti

TI__Mastermind 31655 points

Hello,

It wasn't quite clear to me that you were looking for the capacitance of the pins. Please refer to this post for information on using the IBIS model to calculate the pin capacitance: https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/710803/ads1015-input-output-capacitance

The IBIS model from the post is also used for the ADS1014.

Regards,

Scott

0 Roberto Peretti over 2 years ago in reply to Scott Cummins

Prodigy 10 points

This is an exceptional answer!

This is the best solution I have ever received before!

Very, very thanks!

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ADS1014: Input-output capacity on pins