AD7147 datasheet(52/68 Pages) AD

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AD7147

Rev. 0 | Page 52 of 68

Table 35. STAGEx_CONNECTION [12:7] Register Description (x = 0 to 11)

Data Bit

Default

Value

Type

Name

Description

[1:0]

R/W

CIN7_CONNECTION_SETUP

CIN7 connection setup

00 = CIN7 not connected to CDC inputs

01 = CIN7 connected to CDC negative input

10 = CIN7 connected to CDC positive input

11 = CIN7 connected to BIAS (connect unused CINx inputs)

[3:2]

R/W

CIN8_CONNECTION_SETUP

CIN8 connection setup

00 = CIN8 not connected to CDC inputs

01 = CIN8 connected to CDC negative input

10 = CIN8 connected to CDC positive input

11 = CIN8 connected to BIAS (connect unused CINx inputs)

[5:4]

R/W

CIN9_CONNECTION_SETUP

CIN9 connection setup

00 = CIN9 not connected to CDC inputs

01 = CIN9 connected to CDC negative input

10 = CIN9 connected to CDC positive input

11 = CIN9 connected to BIAS (connect unused CINx inputs)

[7:6]

R/W

CIN10_CONNECTION_SETUP

CIN10 connection setup

00 = CIN10 not connected to CDC inputs

01 = CIN10 connected to CDC negative input

10 = CIN10 connected to CDC positive input

11 = CIN10 connected to BIAS (connect unused CINx inputs)

[9:8]

R/W

CIN11_CONNECTION_SETUP

CIN11 connection setup

00 = CIN11 not connected to CDC inputs

01 = CIN11 connected to CDC negative input

10 = CIN11 connected to CDC positive input

11 = CIN11 connected to BIAS (connect unused CINx inputs)

[11:10]

R/W

CIN12_CONNECTION_SETUP

CIN12 connection setup

00 = CIN12 not connected to CDC inputs

01 = CIN12 connected to CDC negative input

10 = CIN12 connected to CDC positive input

11 = CIN12 connected to BIAS (connect unused CINx inputs)

[13:12]

R/W

SE_CONNECTION_SETUP

Single-ended measurement connection setup.

00 =Do not use

01 = Use when one CINx connected to CDC positive input,

single-ended measurements only

10 = Use when one CINx connected to CDC negative input,

single-ended measurements only

11 = Differential connection to CDC

[14]

R/W

NEG_AFE_OFFSET_DISABLE

Negative AFE offset enable control

0 = enable

1 = disable

[15]

R/W

POS_AFE_OFFSET_DISABLE

Positive AFE offset enable control

0 = enable

1 = disable

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