AD5940
Data Sheet
Bits
Bit Name
Settings Description
Reset Access
9
NR1
Control of the NR1 switch. If this bit is set, NR1 is closed. If this bit is not set, NR1 is open. 0x0
This bit connects the negative node of the excitation amplifier to the RCAL1 pin.
Switch open.
R/W
0
1
Switch closed.
8
N9
Control of the N9 switch. If this bit is set, N9 is closed. If this bit is not set, N9 is open. This
bit connects the negative node of the excitation amplifier directly to the SE0 pin,
bypassing the RLOAD_SE0 resistor.
Switch open.
Switch closed.
Reserved.
0x0
0x0
R/W
0
1
7
6
Reserved
N7
Control of the N7 switch. If this bit is set, N7 is closed. If this bit is not set, N7 is open.
This bit connects the negative node of the excitation amplifier to the AFE3 pin via
the RLOAD_AFE3 resistor.
R/W
0
1
Switch open.
Switch closed.
5
4
N6
N5
Control of the N6 switch. If this bit is set, N6 is closed. If this bit is not set, N6 is open.
This bit connects the negative node of the excitation amplifier to SE0.
Switch open.
Switch closed.
0x0
0x0
R/W
R/W
0
1
Control of the N5 switch. If this bit is set, N5 is closed. If this bit is not set, N5 is open.
This bit connects the negative node of the excitation amplifier to the SE0 pin via
RLOAD_SE0
.
0
1
Switch open.
Switch closed.
3
2
1
0
N4
N3
N2
N1
Control of the N4 switch. If this bit is set, N4 is closed. If this bit is not set, N4 is open.
This bit connects the negative node of the excitation amplifier to the AIN3 pin.
Switch open.
Switch closed.
0x0
0x0
0x0
0x0
R/W
R/W
R/W
R/W
0
1
Control of the N3 switch. If this bit is set, N3 is closed. If this bit is not set, N3 is open.
This bit connects the negative node of the excitation amplifier to the AIN2 pin.
Switch open.
Switch closed.
0
1
Control of the N2 switch. If this bit is set, N2 is closed. If this bit is not set, N2 is open.
This bit connects the negative node of the excitation amplifier to the AIN1 pin.
Switch open.
Switch closed.
0
1
Control of the N1 switch. If this bit is set, N1 is closed. If this bit is not set, N1 is open.
This bit connects the negative node of the excitation amplifier to the AIN0 pin.
0
1
Switch open.
Switch closed.
Switch Matrix Full Configuration Px/Pxx Register—PSWFULLCON
Address 0x00002158, Reset: 0x00000000, Name: PSWFULLCON
The PSWFULLCON register allows individual control of the Px/Pxx switches. The bit names are the same as the switch names shown in
Figure 33.
Table 85. Bit Descriptions for PSWFULLCON Register
Bits
[31:15] Reserved
14 PL2
Bit Name
Settings Description
Reset Access
Reserved.
0x0
0x0
R
PL2 switch control.
Switch open.
Switch closed.
R/W
0
1
Rev. 0 | Page 74 of 130
ADI [ ADI ]
