EVAL-AD7416/7/8EB Analog Devices Inc, EVAL-AD7416/7/8EB Datasheet - Page 9

• Manufacturer Part Number: EVAL-AD7416/7/8EB
• Description: BOARD EVALUATION FOR AD7416/7/8
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD7416/7/8EB

• 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: Contains lead / RoHS non-compliant

Table 5. AD7416 Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
Table 6. AD7418 Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
Mnemonic
SDA
SCL
OTI
GND
A2
A1
A0
V
Mnemonic
SDA
SCL
OTI
GND
A
REF
V
CONVST
DD
DD
IN
Figure 7. AD7416 Pin Configuration (SOIC/MSOP)
IN
GND
SDA
SCL
OTI
Description
Digital I/O. Serial bus bidirectional data. Push-pull output.
Digital Input. Serial bus clock.
This pin is a logic output. The OTI is set if the result of a conversion on Channel 0 (temperature sensor) is greater
than an 8-bit word in the T
output.
Ground reference for track-and-hold, comparator and capacitor DAC, and digital circuitry.
Digital Input. This is the highest programmable bit of the serial bus address.
Digital Input. This is the middle programmable bit of the serial bus address.
Digital Input. This is the lowest programmable bit of the serial bus address.
Positive Supply Voltage, 2.7 V to 5.5 V.
Description
Digital I/O. Serial bus bidirectional data. Push-pull output.
Digital Input. Serial bus clock.
This is a logic output. The OTI is set if the result of a conversion on Channel 0 (temperature sensor) is greater than
an 8-bit word in the T
output.
Ground reference for track-and-hold, comparator and capacitor DAC, and digital circuitry.
Analog Input Channel. The input channel is single-ended with respect to GND. The input channel can convert
voltage signals in the range of 0 V to VREF. The analog input channel is selected by writing to the configuration
register of the AD7418 and choosing Channel 4.
Reference Input. An external 2.5 V reference can be connected to the AD7418 at this pin. To enable the on-chip
reference, the REF
reference shuts down.
Positive Supply Voltage, 2.7 V to 5.5 V.
Logic Input Signal. Convert start signal. The rising edge of this signal fully powers up the part. The power-up time
for the part is 4 μs. If the
mode into hold mode and initiates a conversion. If the pulse is less than 4 μs, an internal timer ensures that the
track-and-hold does not go into hold, and conversion is not initiated until the power-up time has elapsed. The
track-and-hold goes into track mode again at the end of conversion (see the
1
2
3
4
(Not to Scale)
AD7416
TOP VIEW
8
7
6
5
V
A0
A1
A2
IN
DD
pin should be tied to GND. If an external reference is connected to the AD7418, the internal
OTI
setpoint register. The signal is reset at the end of a serial read operation. Open-drain
CONVST
OTI
setpoint register. The signal is reset at the end of a serial read operation. Open-drain
pulse is greater than 4 μs, the falling edge of
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Figure 8. AD7418 Pin Configuration (SOIC/MSOP)
GND
SDA
SCL
OTI
1
2
3
4
(Not to Scale)
AD7418
TOP VIEW
AD7416/AD7417/AD7418
Operating Modes
CONVST
8
7
6
5
places the track-and-hold
CONVST
V
REF
A
DD
IN
IN
section).