ADT7317ARQ-REEL Analog Devices Inc, ADT7317ARQ-REEL Datasheet - Page 32

• Manufacturer Part Number: ADT7317ARQ-REEL
• Description: IC SENSOR TEMP 10BIT DAC 16QSOP
• Manufacturer: Analog Devices Inc

Specifications of ADT7317ARQ-REEL

• 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

ADT7316/ADT7317/ADT7318
Interrupt Mask 1 Register (Read/Write) [Address 0x1D]
This mask register is an 8-bit, read/write register that can be
used to mask out any interrupts that can cause the INT/ INT
pin to go active.
Table 44. Interrupt Mask 1
D7
D7
0
1
Table 45. Interrupt Mask 1 Bit Descriptions
Bit
D0
D1
D2
D3
D4
D5: 7
Interrupt Mask 2 Register (Read/Write) [Address 0x1E]
This mask register is an 8-bit read/write register that can be
used to mask out any interrupts that can cause the INT/ INT
pin to go active.
Table 46. Interrupt Mask 2
D7
D7
0
1
Table 47. Interrupt Mask 2 Bit Descriptions
Bit
D0:D3
D4
D5:7
Internal Temperature Offset Register (Read/Write)
[Address 0x1F]
This register contains the offset value for the internal tempera-
ture channel. A twos complement number can be written to this
register which is then added to the measured result before it is
stored or compared to limits. In this way, a one-point calibration
can be done whereby the whole transfer function of the channel
can be moved up or down. From a software point of view, this
may be a very simple method to vary the characteristics of the
measurement channel if the thermal characteristics change. As
it is an 8-bit register, the temperature resolution is 1°C.
Default settings at power-up.
Default settings at power-up.
1
1
D6
D6
0
D6
D6
0
Function
0 = Enable internal T
1 = Disable internal T
0 = Enable internal T
1 = Disable internal T
0 = Enable external T
1 = Disable external T
0 = Enable external T
1 = Disable external T
0 = Enable external temperature fault interrupt.
1 = Disable external temperature fault interrupt.
Reserved. Only write 0s.
1
1
Function
Reserved. Only write 0s.
0 = Enable V
1 = Disable V
Reserved. Only write 0s.
D5
D5
0
D5
D5
0
1
1
D4
D4
0
D4
D4
0
1
1
DD
DD
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
interrupts.
interrupts.
interrupt.
interrupt.
interrupt.
interrupt.
interrupt.
interrupt.
D3
D3
0
interrupt.
D3
D3
0
interrupt.
1
1
D2
D2
0
D2
D2
0
1
1
D1
D1
0
D1
D1
0
1
1
D0
D0
0
D0
D0
0
1
1
Rev. B | Page 32 of 44
Table 48. Internal Temperature Offset
D7
D7
0
1
External Temperature Offset Register (Read/Write)
[Address 0x20]
This register contains the offset value for the external tempera-
ture channel. A twos complement number can be written to this
register which is then added to the measured result before it is
stored or compared to limits. In this way, one-point calibration
can be done whereby the whole transfer function of the channel
can be moved up or down. From a software point of view, this
may be a very simple method to vary the characteristics of the
measurement channel if the thermal characteristics change. As
it is an 8-bit register, the temperature resolution is 1°C.
Table 49. External Temperature Offset
D7
D7
0
1
Internal Analog Temperature Offset Register (Read/Write)
[Address 0x21]
This register contains the offset value for the internal thermal
voltage output. A twos complement number can be written to
this register which is then added to the measured result before
it is converted by DAC A. Varying the value in this register has
the effect of varying the temperature span. For example, the
output voltage can represent a temperature span of −128°C to
+127°C or even 0°C to 127°C. In essence, this register changes
the position of 0 V on the temperature scale. Anything other
than −128°C to +127°C produces an upper dead band on the
DAC A output. As it is an 8-bit register, the temperature
resolution is 1°C. The default value is −40°C.
Table 50. Internal Analog Temperature Offset
D7
D7
1
1
Default settings at power-up.
Default settings at power-up.
Default settings at power-up.
1
1
1
D6
D6
0
D6
D6
1
D6
D6
0
1
1
1
D5
D5
0
D5
D5
0
D5
D5
0
1
1
1
D4
D4
0
D4
D4
1
D4
D4
0
1
1
1
D3
D3
0
D3
D3
1
D3
D3
0
1
1
1
D2
D2
0
D2
D2
0
D2
D2
0
1
1
1
D1
D1
0
D1
D1
0
D1
D1
0
1
1
1
D0
D0
0
D0
D0
0
D0
D0
0
1
1
1