AD4680/AD4681
Data Sheet
Bits
Bit Name
Description
Reset Access
5
AL_B_HIGH
Alert B High. The alert indication high bit indicates if a conversion result for the respective
input channel exceeds the value set in the ALERT_HIGH_THRESHOLD register. This fault bit is
sticky and remains set until the register is read.
0x0
R
1: alert indication.
0: no alert indication.
4
AL_B_LOW
Alert B Low. The alert indication low bit indicates if a conversion result for the respective input 0x0
channel exceeds the value set in the ALERT_LOW_THRESHOLD register. This fault bit is sticky
and remains set until the register is read.
R
1: alert indication.
0: no alert indication.
[3:2]
1
RESERVED
AL_A_HIGH
Reserved.
0x0
0x0
R
R
Alert A High. The alert indication high bit indicates if a conversion result for the respective
input channel exceeds the value set in the ALERT_HIGH_THRESHOLD register. This fault bit is
sticky and remains set until the register is read.
1: alert indication.
0: no alert indication.
0
AL_A_LOW
Alert A Low. The alert indication low bit indicates if a conversion result for the respective input 0x0
channel exceeds the value set in the ALERT_LOW_THRESHOLD register. This fault bit is sticky
and remains set until the register is read.
R
1: alert indication.
0: no alert indication.
ALERT_LOW_THRESHOLD REGISTER
Address: 0x4, Reset: 0x0800, Name: ALERT_LOW_THRESHOLD
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
[15:12] ADDRESSING (R/W)
[11:0] ALERT_LOW (R/W)
Addressing
Alert Low
Table 19. Bit Descriptions for ALERT_LOW_THRESHOLD
Bits Bit Name Description
Reset Access
[15:12] ADDRESSING Addressing. Bits[15:12] define the address of the relevant register. See the Addressing
Registers section for further details.
0x0
R/W
[11:0]
ALERT_LOW
Alert Low. Bits[11:0] from ALERT_LOW move to the MSBs of the internal ALERT_LOW register,
Bits[15:4]. The remaining Bits[3:0] of the internal register are fixed at 0x0. Sets an alert when
the converter result is below ALERT_LOW_THRESHOLD and the alert is disabled when it is
above ALERT_LOW_THRESHOLD.
0x800 R/W
ALERT_HIGH_THRESHOLD REGISTER
Address: 0x5, Reset: 0x07FF, Name: ALERT_HIGH_THRESHOLD
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
[15:12] ADDRESSING (R/W)
[11:0] ALERT_HIGH (R/W)
Addressing
Alert High
Table 20. Bit Descriptions for ALERT_HIGH_THRESHOLD
Bits Bit Name Description
Reset Access
[15:12] ADDRESSING Addressing. Bits[15:12] define the address of the relevant register. See the Addressing
Registers section for further details.
0x0
R/W
[11:0]
ALERT_HIGH Alert High. Bits[11:0] from ALERT_HIGH move to the MSBs of the internal ALERT_HIGH register, 0x7FF R/W
Bits[15:4]. The remaining Bits[3:0] of the internal register are fixed at 0xF. Sets an alert when
the converter result is above the ALERT_HIGH_THRESHOLD register and the alert is disabled
when the converter result is below the ALERT_HIGH_THRESHOLD register.
Rev. 0 | Page 28 of 29