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AD7418ARUZ Datasheet(PDF) 2 Page - Analog Devices

Part No. AD7418ARUZ
Description  10-Bit Digital Temperature Sensor (AD7416) and Single/Four-Channel ADC (AD7417/AD7418)
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD7418ARUZ Datasheet(HTML) 2 Page - Analog Devices

 
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REV. G
–2–
AD7416/AD7417/AD7418
(VDD = 2.7 V to 5.5 V, GND = 0 V, REFIN = 2.5 V, unless otherwise noted.)
Parameter
A Version
B Version
1
Unit
Test Conditions/Comments
DC ACCURACY
Any Channel.
Resolution
10
10
Bits
Minimum Resolution for Which No
Missing Codes Are Guaranteed
10
10
Bits
Relative Accuracy2
±1
±1LSB max
This Specification Is Typical for VDD of
3.6 V to 5.5 V.
Differential Nonlinearity
2
±1
±1LSB max
This Specification Is Typical for VDD of
3.6 V to 5.5 V.
Gain Error
2
±3
±3LSB max
External Reference.
±10
±10
LSB max
Internal Reference.
Gain Error Match2
±0.6
±0.6
LSB max
AD7417 Only.
Offset Error
2
±4
±4LSB max
Offset Error Match
±0.7
±0.7
LSB max
AD7417 Only.
ANALOG INPUTS
Input Voltage Range
VREF
VREF
V max
00
V min
Input Leakage Current
3
±1
±1
µA max
Input Capacitance
10
10
pF max
TEMPERATURE SENSOR
1
Measurement Error
Ambient Temperature 25
°C
±2
±1
°C max
TMIN to TMAX
±3
±2
°C max
Temperature Resolution
1/4
1/4
°C/LSB
CONVERSION RATE
Track-and-Hold Acquisition Time4
400
400
ns max
Source Impedance < 10
Ω.
Conversion Time
Temperature Sensor
30
30
µs max
Typically 27
µs.
Channels 1 to 4
15
15
µs max
Typically 10
µs.
REFERENCE INPUT
5, 6
REFIN Input Voltage Range
6
2.625
2.625
V max
2.5 V + 5%.
2.375
2.375
V min
2.5 V – 5%.
Input Impedance
40
40
k
Ω min
Input Capacitance
10
10
pF max
ON-CHIP REFERENCE
Nominal 2.5 V.
Reference Error
6
±25
±25
mV max
Temperature Coefficient
6
80
80
ppm/
°C typ
DIGITAL INPUTS
Input High Voltage, VIH
VDD
× 0.7
VDD
× 0.7
V min
Input Low Voltage, VIL
VDD
× 0.3
VDD
× 0.3
V max
Input Leakage Current
1
1
µA max
DIGITAL OUTPUTS
Output Low Voltage, VOL
0.4
0.4
V max
IOL = 3 mA.
Output High Current
1
1
µA max
VOH = 5 V.
POWER REQUIREMENTS
VDD
5.5
5.5
V max
For Specified Performance.
2.7
2.7
V min
IDD
Logic Inputs = 0 V or VDD.
Normal Operation
600
600
µA max
Power-Down
1
1
µA max
50 nA Typically.
Auto Power-Down Mode
VDD = 3 V. See Operating Modes.
10 SPS Throughput Rate
6
6
µW typ
1 kSPS Throughput Rate
60
60
µW typ
10 kSPS Throughput Rate
600
600
µW typ
Power-Down
3
3
µW max
Typically 0.15
µW.
AD7417/AD7418–SPECIFICATIONS


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