EVAL-ADT7411EBZ Analog Devices Inc, EVAL-ADT7411EBZ Datasheet - Page 26

• Manufacturer Part Number: EVAL-ADT7411EBZ
• Description: BOARD EVALUATION FOR ADT7411
• Manufacturer: Analog Devices Inc

Specifications of EVAL-ADT7411EBZ

• Sensor Type: Temperature
• Sensing Range: -40°C ~ 120°C
• Interface: DSP, I²C, MICROWIRE, QSPI, SMBus, SPI
• Sensitivity: ±0.5°C
• Voltage - Supply: 2.7 V ~ 5.5 V
• Embedded: No
• Utilized Ic / Part: ADT7411
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADT7411
Internal T
This limit register is an 8-bit read/write register that stores the
twos complement of the internal temperature lower limit that
causes an interrupt and activates the INT/ INT output (if enabled).
For this to happen, the measured internal temperature value has
to be more negative than or equal to the value in this register.
Because it is an 8-bit register, the temperature resolution is 1°C.
The default value is −55°C.
Table 43. Internal T
D7
D7
1
1
External T
[Address = 27h]
If Pin 7 and Pin 8 are configured for the external temperature
sensor, this limit register is an 8-bit read/write register that
stores the twos complement of the external temperature upper
limit that causes an interrupt and activates the INT/ INT output
(if enabled). For this to happen, the measured external
temperature value has to be greater than the value in this
register. Because it is an 8-bit register, the temperature
resolution is 1°C. The default value is −1°C.
If Pin 7 and Pin 8 are configured for AIN1 and AIN2 single-
ended inputs, this limit register is an 8-bit read/write register
that stores the AIN1 input upper limit that causes an interrupt
and activates the INT/ INT output (if enabled). For this to
happen, the measured AIN1 value has to be greater than the
value in this register. Because it is an 8-bit register, the
resolution is four times less than the resolution of the 10-bit
ADC. Because the power-up default settings for Pin 7 and Pin 8
are AIN1 and AIN2 single-ended inputs, the default value for
this limit register is full-scale voltage.
Table 44. AIN1 V
D7
D7
1
1
Default settings at power-up.
Default settings at power-up.
1
1
Positive Temperature = Limit Register Code (d)
Negative Temperature = Limit Register Code (d) − 256
Positive Temperature = Limit Register Code (d)
Negative Temperature = Limit Register Code (d) − 256
D6
D6
1
D6
D6
1
1
1
LOW
HIGH
Limit Register (Read/Write) [Address = 26h]
/AIN1 V
D5
D5
0
D5
D5
1
1
1
HIGH
LOW
Limit
HIGH
Limit
D4
D4
0
D4
D4
1
1
1
Limit Register (Read/Write)
D3
D3
1
D3
D3
1
1
1
D2
D2
0
D2
D2
1
1
1
D1
D1
0
D1
D1
1
1
1
D0
D0
1
D0
D0
1
1
1
Rev. B | Page 26 of 36
External T
[Address = 28h]
If Pin 7 and Pin 8 are configured for the external temperature
sensor, this limit register is an 8-bit read/write register that
stores the twos complement of the external temperature lower
limit that causes an interrupt and activates the INT/ INT output
(if enabled). For this to happen, the measured external temperature
value has to be more negative than or equal to the value in this
register. Because it is an 8-bit register, the temperature
resolution is 1°C. The default value is 0°C.
If Pin 7 and Pin 8 are configured for AIN1 and AIN2 single-
ended inputs, this limit register is an 8-bit read/write register
that stores the AIN1 input lower limit that causes an interrupt
and activates the INT/ INT output (if enabled). For this to
happen, the measured AIN1 value has to be less than or equal
to the value in this register. Because it is an 8-bit register, the
resolution is four times less than the resolution of the 10-bit
ADC. Because the power-up default settings for Pin 7 and Pin 8
are AIN1 and AIN2 single-ended inputs, the default value for
this limit register is 0 V.
Table 45. AIN1 V
D7
D7
0
1
AIN2 V
This limit register is an 8-bit read/write register that stores the
AIN2 input upper limit that causes an interrupt and activates
the INT/ INT output (if enabled). For this to happen, the
measured AIN2 value has to be greater than the value in this
register. Because it is an 8-bit register, the resolution is four
times less than the resolution of the 10-bit ADC. The default
value is full-scale voltage.
Table 46. AIN2 V
D7
D7
1
1
Default settings at power-up.
Default settings at power-up.
1
1
Positive Temperature = Limit Register Code (d)
Negative Temperature = Limit Register Code (d) − 256
HIGH
D6
D6
0
D6
D6
1
1
1
LOW
Limit Register (Read/Write) [Address = 2Bh]
/AIN1 V
D5
D5
0
D5
D5
1
1
1
LOW
HIGH
Limit
Limit
LOW
D4
D4
0
D4
D4
1
1
1
Limit Register (Read/Write)
D3
D3
0
D3
D3
1
1
1
D2
D2
0
D2
D2
1
1
1
D1
D1
0
D1
D1
1
1
1
D0
D0
0
D0
D0
1
1
1