參數(shù)資料
型號： ADT7318ARU
廠商： ANALOG DEVICES INC
元件分類： 溫度/濕度傳感器
英文描述： DIGITAL TEMP SENSOR-SERIAL, 8BIT(s), 3Cel, RECTANGULAR, SURFACE MOUNT
封裝： QSOP-16
文件頁數(shù)： 12/24頁
文件大?。?/td> 279K
代理商： ADT7318ARU
–2–
REV. PrH
Preliminary Technical Data
PRELIMINARY TECHNICAL DATA
ADT7316/ADT7317/ADT7318-SPECIFICATIONS
(VDD=2.7 V to 5.5 V, GND=0 V, REFIN=2.25 V, unless otherwise noted)
Parameter
1
Min
Typ
M a x
Units
Conditions/Comments
DC PERFORMANCE
3,4
DAC
ADT7318
Resolution
8
Bits
Relative Accuracy
±0.15
± 1
L S B
Differential Nonlinearity
±0.02
±0.25
L S B
Guaranteed Monotonic by design over all codes
ADT7317
Resolution
10
Bits
Relative Accuracy
±0.5
± 4
L S B
Differential Nonlinearity
±0.05
±0.5
L S B
Guaranteed Monotonic by design over all codes
ADT7316
Resolution
12
Bits
Relative Accuracy
± 2
±16
L S B
Differential Nonlinearity
±0.02
± 1
L S B
Guaranteed Monotonic by design over all codes
INTERNAL TEMPERATURE
SENSOR
Accuracy
± 2
° C
TA = 0°C to +85°C
±3
° C
TA = -40°C to +125°C
Resolution
1 0
Bits
EXTERNAL TEMPERATURE
SENSOR
Accuracy
± 2
° C
TA = 0°C to +85°C
±3
° C
TA = -40°C to +125°C
Resolution
1 0
Bits
Update Rate, tR
400
s
Temperature Conversion Time
2 5
s
Offset Error
±0.4
± 3
% of FSR
Gain Error
±0.15
± 1
% of FSR
Lower Deadband
20
60
m V
Lower Deadband exists only if Offset Error is Negative
Upper Deadband
tbd
m V
Upper Deadband exists if VREF = VDD
Offset Error Drift
5
-12
ppm of FSR/°C
Gain Error Drift
5
-5
ppm of FSR/°C
DC Power Supply Rejection Ratio
5
-60
dB
V
DD = ±10%
DC Crosstalk
5
200
V
DAC REFERENCE INPUT5
VREF Input Range
1
VDD
V
Buffered Reference Mode
VREF Input Range
0.25
VDD
V
Unbuffered Reference Mode
VREF Input Impedance
3 7
4 5
k
Normal Operation
>10
M
Buffered reference mode and Power-Down Mode
Reference Feedthrough
-90
d B
Frequency=10KHz
Channel-toChannel Isolation
-80
d B
Frequency=10KHz
OUTPUT CHARACTERISTICS
5
Minimum Output Voltage6
0.001
V
This is a measure of the minimum and maximum drive
Maximum Output Voltage
6
VDD-0.001
V capability of the output amplifier
DC Output Impedance
0.5
Short Circuit Current
25
mA
VDD = +5V
16
m A
VDD = +3V
Power Up Time
2.5
s
Coming out of Power Down Mode. VDD = +5 V
5
s
Coming out of Power Down Mode. VDD = +3 V
DIGITAL INPUTS
5
Input Current
± 1
A
VIN = 0V to VDD
VIL, Input Low Voltage
0.8
V
VDD = +5V±10%
0.6
V
VDD = +3V±10%
VIH, Input High Voltage
2
V
Pin Capacitance
2
1 0
p F
All Digital Inputs
DIGITAL OUTPUT
Output High Voltage, VOH
2.4
V
ISOURCE = ISINK = 200 A
Output Low Voltage, VOL
0.4
V
IOL = 3 mA
Output High Current, IOH
1m A
VOH = 5 V
Output Capacitance, COUT
50
p F
ALERT Output Saturation Voltage
0.8
V
IOUT = 4 mA
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