Datasheet

AD7151
Rev. 0 | Page 14 of 28
REGISTER DESCRIPTIONS
Table 5. Register Summary
Pointer Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Register (Dec) (Hex) R/W Default Value
PwrDown – –
DacStep
OUT – –
RDY
Status 0 0x00 R
0 1 0 1 0 0 1 1
Data High 1 0x01 R 0x00
Data Low 2 0x02 R 0x00
– 3 0x03 R 0x00
– 4 0x04 R 0x00
Average High 5 0x05 R 0x00
Average Low 6 0x06 R 0x00
– 7 0x07 R 0x00
– 8 0x08 R 0x00
Sensitivity (in adaptive threshold mode)/Threshold High Byte (in fixed threshold mode)
Sensitivity
Threshold High
9 0x09 R/W
0x08
Timeout (in adaptive threshold mode)/Threshold Low Byte (in fixed threshold mode)
Timeout
Threshold Low
10 0x0A R/W
0x86
RngH RngL –
Hyst
ThrSettling (4-bit value)
Setup 11 0x0B R/W
0 0 0 0 0x0B
– 12 0x0C R/W 0x00
– 13 0x0D R/W 0x00
– 14 0x0E R/W 0x00
ThrFixed ThrMD1 ThrMD0 EnConv – MD2 MD1 MD0
Configuration 15 0x0F R/W
0 0 0 1 0 0 0 1
– – Power-Down Timeout (6-bit value)
Power-Down Timer 16 0x10 R/W
0 0 0x00
DacEn DacAuto DacValue (6-bit value)
CAPDAC 17 0x11 R/W
1 1 0x00
– 18 0x12 R/W 0x00
Serial Number 3 19 0x13 R Serial Number – Byte 3 (MSB)
Serial Number 2 20 0x14 R Serial Number – Byte 2
Serial Number 1 21 0x15 R Serial Number – Byte 1
Serial Number 0 22 0x16 R Serial Number – Byte 0 (LSB)
Chip ID 23 0x17 R Chip Identification Code