Datasheet

AD7150
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
DacStep2
OUT2
DacStep1
OUT1 C1/C2
RDY2 RDY1
Status 0 0x00 R
0 1 0 1 0 0 1 1
Ch1 Data High 1 0x01 R 0x00
Ch1 Data Low 2 0x02 R 0x00
Ch2 Data High 3 0x03 R 0x00
Ch2 Data Low 4 0x04 R 0x00
Ch1 Average High 5 0x05 R 0x00
Ch1 Average Low 6 0x06 R 0x00
Ch2 Average High 7 0x07 R 0x00
Ch2 Average Low 8 0x08 R 0x00
Ch1 Sensitivity (in adaptive threshold mode)/Threshold High Byte (in fixed threshold mode)
Ch1 Sensitivity
Ch1 Threshold High
9 0x09 R/W
0x08
Ch1 Timeout (in adaptive threshold mode)/Threshold Low Byte (in fixed threshold mode)
Ch1 Timeout
Ch1 Threshold Low
10 0x0A R/W
0x86
RngH1 RngL1 –
Hyst1
ThrSettling1 (4-bit value)
Ch1 Setup 11 0x0B R/W
0 0 0 0 0x0B
Ch2 Sensitivity (in adaptive threshold mode)/Threshold High Byte (in fixed threshold mode)
Ch2 Sensitivity
Ch2 Threshold High
12 0x0C R/W
0x08
Ch2 Timeout (in adaptive threshold mode)/Threshold Low Byte (in fixed threshold mode)
Ch2 Timeout
Ch2 Threshold Low
13 0x0D R/W
0x86
RngH2 RngL2 –
Hyst2
ThrSettling2 (4-bit value)
Ch2 Setup 14 0x0E R/W
0 0 0 0 0x0B
ThrFixed ThrMD1 ThrMD0 EnCh1 EnCh2 MD2 MD1 MD0
Configuration 15 0x0F R/W
0 0 0 1 1 0 0 1
– – Power-Down Timeout (6-bit value)
Power-Down Timer 16 0x10 R/W
0 0 0x00
DacEn1 DacAuto1 DacValue1 (6-bit value)
Ch1 CAPDAC 17 0x11 R/W
1 1 0x00
DacEn2 DacAuto2 DacValue2 (6-bit value)
Ch2 CAPDAC 18 0x12 R/W
1 1 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