AD7418ARZ Analog Devices Inc, AD7418ARZ Datasheet - Page 15

• Manufacturer Part Number: AD7418ARZ
• Description: IC ADC 1CH W/TEMP SENSOR 8-SOIC
• Manufacturer: Analog Devices Inc

Specifications of AD7418ARZ

• Function: Temp Monitoring System (Sensor)
• Topology: ADC, Comparator, Register Bank
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 125°C
• Output Type: I²C™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 2°C
• Supply Current: 1mA
• Supply Voltage Range: 2.7V To 5.5V
• Resolution (bits): 10bit
• Sensor Case Style: SOIC
• No. Of Pins: 8
• Msl: MSL 1 - Unlimited
• Temperature Sensing Range: -40°C To +125°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD7416/7/8EBZ - BOARD EVALUATION FOR AD7416/7/8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

•
written to the selected data register. This is illustrated in
Figure 16.
Writing two bytes of data to the T
setpoint register.
If 9-bit resolution is required for the temperature setpoints,
two bytes of data must be written to the T
SDA
1
1
SDA
SCL
START BY
SCL
START BY
(CONTINUED)
(CONTINUED)
AD741x = AD7416/AD7417/AD7418.
MASTER
AD741x = AD7416/AD7417/AD7418.
MASTER
1
SDA
SCL
START BY
AD741x = AD7416/AD7417/AD7418.
MASTER
SDA
SCL
1
1
1
1
Figure 17. Writing to the Address Pointer Register Followed by Two Bytes of Data to the T
1
1
D15
1
0
Figure 16. Writing to the Address Pointer Register Followed by a Single Byte of Data to the Selected Data Register
0
Figure 15. Writing to the Address Pointer Register to Select a Data Register for a Subsequent Read Operation
0
D14
SERIAL BUS ADDRESS BYTE
SERIAL BUS ADDRESS BYTE
0
0
SERIAL BUS ADDRESS BYTE
0
D13
MOST SIGNIFICANT DATA BYTE
1
FRAME 1
1
FRAME 1
1
D12
FRAME 1
OTI
A2
A2
FRAME 3
setpoint or T
A2
D11
SDA (CONTINUED)
A1
SCL (CONTINUED)
A1
OTI
A1
D10
setpoint and
A0
A0
HYST
A0
D9
R/W
R/W
AD741x
ACK. BY
R/W
D8
Rev. I | Page 15 of 24
AD741x
ACK. BY
9
ACK. BY
AD741x
ACK. BY
AD741x
9
1
D7
9
1
9
1
P7
1
1
1
P7
1
STOP BY
MASTER
D7
1
D6
P7
1
P6
P6
ADDRESS POINTER REGISTER BYTE
D6
T
address, the register address written to the address pointer
register, followed by two data bytes written to the selected
data register. This is illustrated in Figure 17.
P6
D5
P5
HYST
ADDRESS POINTER REGISTER BYTE
P5
D5
ADDRESS POINTER REGISTER BYTE
LEAST SIGNIFICANT DATA BYTE
setpoint registers. This consists of the serial bus
D4
P4
P5
P4
DATA BYTE
FRAME 2
FRAME 3
D4
P3
P4
D3
OTI
FRAME 2
FRAME 4
Setpoint or T
P3
FRAME 2
D3
P2
P3
D2
AD7416/AD7417/AD7418
P2
D2
P1
P2
D1
HYST
P1
D1
Setpoint Register
P0
P1
D0
P0
ACK. BY
AD741x
ACK. BY
AD741x
D0
9
P0
9
AD741x
ACK. BY
ACK. BY
AD741x
1
1
9
AD741x
9
ACK. BY
9
MASTER
1
1
STOP
BY
MASTER
MASTER
1
STOP
STOP
BY
BY