AD7416AR Analog Devices Inc, AD7416AR Datasheet - Page 16

• Manufacturer Part Number: AD7416AR
• Description: A/D Converter (A-D) IC
• Manufacturer: Analog Devices Inc

Specifications of AD7416AR

• Peak Reflow Compatible (260 C): No
• Supply Voltage: 5.5V
• No. Of Bits: 10 Bit
• Leaded Process Compatible: No
• Mounting Type: Surface Mount
• Interface Type: Serial
• Package / Case: 8-SOIC
• Rohs Status: RoHS non-compliant
• 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
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: EVAL-AD7416/7/8EBZ - BOARD EVALUATION FOR AD7416/7/8
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD7416/AD7417/AD7418
Reading Data From the AD7416/AD7417/AD7418
Reading data from the AD7416/AD7417/AD7418 is a single-
byte or 2-byte operation. Reading back the contents of the
configuration register is a single-byte read operation, as shown
in Figure 18, with the register address previously having been
set by a single-byte write operation to the address pointer
register.
Reading data from the temperature value register, the T
setpoint or T
shown in Figure 19. It is also possible to read the most
significant bit of a 9-bit or 10-bit register in this manner.
SDA
SCL
1
START BY
MASTER
AD741x = AD7416/AD7417/AD7418.
SDA
1
SCL
START BY
MASTER
AD741x = AD7416/AD7417/AD7418.
HYST
1
1
setpoint register is a 2-byte operation, as
1
1
0
0
SERIAL BUS ADDRESS BYTE
0
SERIAL BUS ADDRESS BYTE
0
Figure 19. Reading Two Bytes of Data from the T
1
FRAME 1
1
FRAME 1
Figure 18. Reading a Single Byte of Data from the Configuration Register
A2
A2
SDA (CONTINUED)
SCL (CONTINUED)
A1
A1
A0
A0
OTI
R/W
R/W
Rev. I | Page 16 of 24
ACK. BY
AD741x
ACK. BY
AD741x
9
D7
1
9
1
1
D7
1
D15
D6
1
LEAST SIGNIFICANT DATA BYTE FROM AD741x
Note that when reading back from the AD7416/AD7417/
AD7418, no more than three bytes of data must be read back.
A stop command must be inserted at the end of the read
communication. If a stop command is not inserted by the
master and the AD7416/AD7417/AD7418 receive more SCL
cycles than the maximum needed for three bytes of data, then
the I
SDA line low and prevents it from going high again. To recover
the AD7416/AD7417/AD7418 interface, the part must be
powered off and on again. Reference the AN-686 Application
Note, Implementing an I
information on I
OTI
D6
Setpoint or T
D14
2
D5
C interface on the AD7416/AD7417/AD7418 pulls the
D5
SINGLE DATA BYTE FROM AD741x
MOST SIGNIFICANT BYTE FROM AD741x
D13
D4
HYST
D4
FRAME 3
D12
Setpoint Register
D3
2
C interfaces.
FRAME 2
D3
FRAME 2
D11
D2
2
C® Reset at
D2
D10
D1
D1
D9
D0
1
www.analog.com
1
NO ACK. BY
D0
MASTER
1
D8
NO ACK. BY
9
MASTER
9
MASTER
ACK. BY
9
MASTER
STOP
BY
MASTER
STOP
BY
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