ADT7316ARQ Analog Devices Inc, ADT7316ARQ Datasheet - Page 31

• Manufacturer Part Number: ADT7316ARQ
• Description: IC DGTL TEMP SNSR QUAD DAC16QSOP
• Manufacturer: Analog Devices Inc

Specifications of ADT7316ARQ

• Rohs Status: RoHS non-compliant
• Function: Temp Monitoring System (Sensor)
• Topology: ADC, Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 120°C, External Sensor
• Output Type: I²C™, MICROWIRE™, QSPI™, SMBus™, SPI™
• Output Alarm: No
• Output Fan: No
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 120°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• For Use With: EVAL-ADT7316EBZ - BOARD EVAL FOR ADT7316
• Lead Free Status / RoHS Status: Not Compliant

Control Configuration 3 Register (Read/Write)
[Address 0x1A]
This configuration register is an 8-bit read/write register that
is used to set up some of the operating modes of the ADT7316/
ADT7317/ADT7318.
Table 38. Control Configuration 3
D7
C7
0
1
Table 39. Control Configuration 3
Bit
C0
C1
C2
C3
C4
C5
C6
C7
DAC Configuration Register (Read/Write) [Address 0x1B]
This configuration register is an 8-bit, read/write register that
is used to control the output ranges of all four DACs and to
control the loading of the DAC registers if the LDAC pin is
disabled (Bit C3 = 1, Control Configuration 3 register).
Table 40. DAC Configuration
D7
D7
0
1
Default settings at power-up.
Default settings at power-up.
1
1
Function
Selects between fast and normal ADC conversion speeds
On the ADT7316 and ADT7317, this bit selects between
Reserved. Only write 0.
0 = LDAC pin controls updating of DAC outputs.
Reserved. Only write 0.
Setting this bit selects DAC A voltage output to be
Setting this bit selects DAC B voltage output to be
Reserved. Only write 0.
for all three monitoring channels.
0 = ADC clock at 1.4 kHz.
1 = ADC clock at 22.5 kHz. D+ and D− analog filters are
disabled.
8-bit and 10-bit DAC output resolution on the thermal
voltage output feature. Default = 8 bits. This bit has no
effect on the ADT7318 output because this part has only
an 8-bit DAC. In the ADT7318 case, write 0 to this bit.
0 = 8-bit resolution.
1 = 10-bit resolution.
1 = DAC configuration register and LDAC configuration
register control the updating of the DAC outputs.
proportional to the internal temperature measurement.
proportional to the external temperature measurement.
D6
C6
0
D6
D6
0
1
1
D5
C5
0
D5
D5
0
1
1
D4
C4
0
D4
D4
0
1
1
D3
C3
0
D3
D3
0
1
1
D2
C2
0
D2
D2
0
1
1
D1
C1
0
D1
D1
0
1
1
D0
C0
0
D0
D0
0
1
1
Rev. B | Page 31 of 44
Table 41. DAC Configuration
Bit
D0
D1
D2
D3
D4:5
D6
D7
LDAC Configuration Register (Write-Only)
[Address 0x1C]
This configuration register is an 8-bit write register that is used
to control the updating of the quad DAC outputs if the LDAC
pin is disabled and Bit D4 and Bit D5 of the DAC Configuration
register are both set to 1. It also selects either the internal or
external V
are self-clearing, that is, reading back from this register always
gives 0s for these bits.
Table 42. LDAC Configuration
D7
D7
0
1
Table 43. LDAC Configuration
Bit
D0
D1
D2
D3
D4
D5:D7
Default settings at power-up.
1
D6
D6
0
Reserved. Only write 0s.
Function
Selects the output range of DAC A.
Selects the output range of DAC B.
Selects the output range of DAC C.
Selects the output range of DAC D.
0 = 0 V to V
00 = MSB write to any DAC register generates an LDAC
Setting this bit allows the external V
Setting this bit allows the external V
Function
Writing 1 to this bit generates the LDAC command to
Writing 1 to this bit generates the LDAC command to
Writing 1 to this bit generates the LDAC command to
Writing 1 to this bit generates the LDAC command to
Selects either internal V
1
0 = 0 V to V
1 = 0 V to 2 V
0 = 0 V to V
1 = 0 V to 2 V
0 = 0 V to V
1 = 0 V to 2 V
1 = 0 V to 2 V
command, which updates that DAC only.
01 = MSB write to DAC B or DAC D register generates
an LDAC command, which updates DAC A, DAC B or DAC
C, DAC D, respectively.
10 = MSB write to DAC D register generates an LDAC
command, which updates all 4 DACs.
11 = LDAC command generated from LDAC register.
reference buffer when supplying DAC A and DAC B.
reference buffer when supplying DAC C and DAC D.
update the DAC A output only.
update the DAC B output only.
update the DAC C output only.
update the DAC D output only.
DAC B, DAC C and DAC D.
0 = External V
1 = Internal V
REF
for all four DACs. Bit D0 to Bit D3 in this register
D5
D5
0
1
ADT7316/ADT7317/ADT7318
REF
REF
REF
REF
.
REF
REF
REF
REF
.
.
.
REF
REF
.
.
.
.
D4
D4
0
.
.
1
REF
D3
D3
0
1
or external V
D2
D2
0
1
REF
REF
to bypass the
to bypass the
REF
-AB for DAC A,
D1
0
D1
1
D0
D0
0
1