
AD5560
Data Sheet
Rev. D | Page 52 of 68
Table 23. Diagnostic Register
Address
Default
Data Bits, MSB First
0x7
0x0000
Bit
Name
Function
15
14
13
12
DIAG
select[3:0]
DIAG select selects the set of diagnostic signals that can be made available on MEASOUT. First, use MEASOUT
addressing (DPS Register 1) to select either the DIAG A or the DIAG B node to be made available on MEASOUT.
DIAG Select
Selected
Measure Block
DIAG A
DIAG B
0:3
Disabled
4
Force amplifier
Disabled
5
EXTFORCE1A
EXTFORCE2A
6
FINP
FINM
7
Output 2.5 mA
Output 25 mA
8
Measure block
VPTAT low
VPTAT high
9
VTSD low (ref V
for 273°C)
VTSD high (ref V for +130°C)
10
MI
VMID Code
11
MV
VMIN Code
12
DAC block
FORCE DAC
VOS DAC
13
CLL DAC
CLH DAC
14
CPL DAC
CPH DAC
15
OSD DAC
DGS DAC
VPTAT low/VPTAT high are temperature sensor devices in the middle of the enabled power stage, which gives a
voltage level that can be mapped back to the VTSD low and VTSD high reference points to get a temperature
value. These sensors are used in the thermal shutdown feature. See
theVMID code is the midscale voltage of the DACs; the offset DAC has a direct effect on this voltage level.
VMIN code is the zero-scale voltage of the DACs; again the offset DAC has a direct effect.
11
10
9
8
7
TSENSE
select[3:0]
The following codes allow selection of one of three sets of eight thermal diodes. The D+ of the selected thermal
diode is available on the GPO pin; the D is on the AGND.
These thermal diodes are located across the die, in the cool parts and in the power stages. Diodes [16:23] are located
in the force amplifier NPNs (power output devices for supplying current). Similarly, Diodes [24:31] are located in
the force amplifier PNP devices (output devices for sinking current).
TSENSE Select
Selected
Thermal Block
Connected Sensor
0:7
N/A—normal
GPO operation
No sensor connected
8
Cool block
Cool end of high current drivers, hot side of digital
block
9
25 mA output stage
10
Hottest part of sensitive measurement circuitry
and cool part of force amplifier
11
Coolest end of force amplifier block
12
Coolest end of DACs
13
Beside TSENSE available on MEASOUT
14
Hottest part of DACs
15
Cool side of digital block
16
Force amplifier
PNPs
1A-1
17
1A-2
18
2A (similar location to VPTAT low for EXTFORCE2
range)
19
1B-1 (similar location to VPTAT low for EXTFORCE1
range)
20
1B-2
21
2B
22
1C-1
23
1C-2