AD7142 datasheet(53/68 Pages) AD

53 / 68 page

AD7142

Rev. 0 | Page 53 of 68

Data Bit

Default

Value

Type

Name

Description

[13:12]

R/W

CIN13_CONNECTION_SETUP

CIN13 connection setup

00 = CIN13 not connected to CDC inputs

01 = CIN13 connected to CDC negative input

10 = CIN13 connected to CDC positive input

11 = CIN13 connected to BIAS (connect unused CIN

inputs)

[14]

NEG_AFE_OFFSET_DISABLE

Negative AFE offset enable control

0 = enable

1 = disable

[15]

POS_AFE_OFFSET_DISABLE

Positive AFE offset enable control

0 = enable

1 = disable

Table 47. STAGEX Detailed Offset Control Description (X = 0 to 11)

Data Bit

Default

Value

Type

Name

Description

[6:0]

R/W

NEG_AFE_OFFSET

Negative AFE offset setting (20 pF range)

1 LSB value = 0.16 pF of offset

[7]

R/W

NEG_AFE_OFFSET_SWAP

Negative AFE offset swap control

0 = NEG_AFE_OFFSET applied to CDC negative input

1 = NEG_AFE_OFFSET applied to CDC positive input

[14:8]

R/W

POS_AFE_OFFSET

Positive AFE offset setting (20 pF range)

1 LSB value = 0.16 pF of offset

[15]

R/W

POS_AFE_OFFSET_SWAP

Positive AFE offset swap control

0 = POS_AFE_OFFSET applied to CDC positive input

1 = POS_AFE_OFFSET applied to CDC negative input

Table 48. STAGEX Detailed Sensitivity Control Description (X = 0 to 11)

Data Bit

Default

Value

Type

Name

Description

[3:0]

R/W

NEG_THRESHOLD_SENSITIVITY

Negative threshold sensitivity control

0000 = 25%, 0001 = 29.73%, 0010 = 34.40%, 0011 = 39.08%

0100 = 43.79%, 0101 = 48.47%, 0110 = 53.15%

0111 = 57.83%, 1000 = 62.51%, 1001 = 67.22%

1010 = 71.90%, 1011 = 76.58%, 1100 = 81.28%

1101 = 85.96%, 1110 = 90.64%, 1111 = 95.32%

[6:4]

R/W

NEG_PEAK_DETECT

Negative peak detect setting

000 = 40% level, 001 = 50% level, 010 = 60% level

011 = 70% level, 100 = 80% level, 101 = 90% level

[7]

R/W

Unused

[11:8]

R/W

POS_THRESHOLD_SENSITIVITY

Positive threshold sensitivity control

0000 = 25%, 0001 = 29.73%, 0010 = 34.40%, 0011 = 39.08%

0100 = 43.79%, 0101 = 48.47%, 0110 = 53.15%

0111 = 57.83%, 1000 = 62.51%, 1001 = 67.22%

1010 = 71.90%, 1011 = 76.58%, 1100 = 81.28%

1101 = 85.96%, 1110 = 90.64%, 1111 = 95.32%

[14:12]

R/W

POS_PEAK_DETECT

Positive peak detect setting

000 = 40% level, 001 = 50% level, 010 = 60% level

011 = 70% level, 100 = 80% level, 101 = 90% level

[15]

R/W

Unused

AD7142 Datasheet(PDF) 53 Page - Analog Devices

AD7142 Datasheet(HTML) 53 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

Datasheet Download

Link URL