EVAL-AD7416/7/8EBZ Analog Devices Inc, EVAL-AD7416/7/8EBZ Datasheet - Page 16

• Manufacturer Part Number: EVAL-AD7416/7/8EBZ
• Description: EVALUATION BOARD I.C.
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD7416/7/8EBZ

• Sensor Type: Temperature
• Sensing Range: -40°C ~ 125°C
• Interface: I²C
• Voltage - Supply: 2.7 V ~ 5.5 V
• Embedded: No
• Utilized Ic / Part: AD7416, AD7417, AD7418
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed

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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