ADS8556: what's the diff between the ADS8556,ADS8555

Chen Alex1

Genius 3015 points

Part Number: ADS8556
Other Parts Discussed in Thread: ADS8555

HI Sir

The ADS8556 will freeze in random during the ADC reading

but ADS8555 No any issue in the same circuit, may I know the diff inter?

thans

over 1 year ago

0 Dale Li over 1 year ago

TI__Mastermind 39805 points

Hi Alex,

The only difference between the ADS8555 and ADS8556 ADCs is the partial power-down mode which is available on the ADS8556, others are same including the pinout and timing for operation. Also, both of devices offer the data rate up to 630kSPS in Parallel mode or 450kSPS in Serial mode.

Best regards,

Dale

0 Chen Alex1 over 1 year ago in reply to Dale Li

Genius 3015 points

Did you mean if we turn off the Power down mode for ADS8556?

the two parts is same?

may i know how to turn off the power down mode?

thanks

0 Dale Li over 1 year ago in reply to Chen Alex1

TI__Mastermind 39805 points

Hi Alex,

If you do not want to use the partial power-down mode, you can directly use ADS8555 that's is pin-pin compatible with ADS8556.

Regards,

Dale

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ADS8556: what's the diff between the ADS8556,ADS8555