ADS4449 datasheet(33/54 Pages) TI

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ADS4449

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SBAS603 – APRIL 2013

OFFSET CORR EN1

Bits D[7:6]

Always write '0'

Bit D5

OFFSET CORR EN1: Offset correction setting

This bit enables the offset correction feature for all four channels after the DIGITAL

ENABLE bit is set to ‘1,’ correcting mid-code to 8191. In addition, write the OFFSET

CORR EN2 bit (register CFh, value 08h) for proper operation of the offset correction

feature.

0 = Offset correction disabled (default)

1 = Offset correction enabled

Bits D[4:0]

Always write '0'

CUSTOM

PATTERN D13

PATTERN D12

PATTERN D11

PATTERN D10

PATTERN D9

PATTERN D8

Bits D[7:6]

Always write '0'

Bits D[5:0]

CUSTOM PATTERN D[13:8]

Set the custom pattern using these bits for all four channels.

CUSTOM

PATTERN D7

PATTERN D6

PATTERN D5

PATTERN D4

PATTERN D3

PATTERN D2

PATTERN D1

PATTERN D0

Bits D[7:0]

CUSTOM PATTERN D[7:0]

Set the custom pattern using these bits for all four channels.

DIGITAL ENABLE

Bits D[7:4]

Always write '0'

Bit D3

DIGITAL ENABLE

1 = Digital gain and offset correction features disabled

1 = Digital gain and offset correction features enabled

Bits D[2:0]

Always write '0'

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