參數(shù)資料
型號(hào)： DS1821+
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： Switch/Digital Output Temperature Sensor
英文描述： DIGITAL TEMP SENSOR-SERIAL, 8BIT(s), 1Cel, RECTANGULAR, SURFACE MOUNT
封裝： LEAD FREE, PR-35, 3 PIN
文件頁(yè)數(shù)： 7/20頁(yè)
文件大小： 543K
代理商： DS1821+
DS1821
15 of 18
ABSOLUTE MAXIMUM RATINGS*
Voltage on any pin relative to ground
–0.5V to +7.0V
Operating temperature
–55
°C to +125°C
Storage temperature
–55
°C to +125°C
Soldering temperature
See-JTD-020A Specification
*These are stress ratings only and functional operation of the device at these or any other conditions
above those indicated in the operation sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect reliability.
DC ELECTRICAL CHARACTERISTICS
(-55°C to +125°C; VDD=2.7V to 5.5V)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
NOTES
Supply Voltage
VDD
+2.7
+5.5
1
tERR
0°C to +85°C
VDD = 3.6V to 5.5V
±1
°C
2,3,4
Thermometer
Error
-55°C to +125°C
VDD = 3.6V to 5.5V
See Typical Curve (Figure 11)
DQ Logic Low
VIL
-0.3
+0.8
V
1,5
DQ Logic High
VIH
+2
The lower of
+5.5
or
VDD + 0.3
V
1,6
Sink Current
IL
VDQ = 0.4V
VDD = 3.6V to 5.5V
4
mA
1
Standby Current
IQ
-55°C to +85°C
1
3
μA
7
Active Current
IDD
VDD= 5V
500
1000
μA
8
DQ Input
Current
IDQ
5
A
9
NOTES:
1.
All voltages are referenced to ground.
2.
Thermometer error reflects the sensor accuracy as tested during calibration.
3.
See typical performance curve in Figure 11 for specification limits outside the 0
°C to +85°C range.
4.
For T<0
°C, accuracy degrades by 0.5°C/V for VDD <4.3V.
5.
Logic low voltages are specified at a sink current of 4 mA.
6.
Logic high voltages are specified at a source current of 1 mA.
7.
Standby current is typically 5
μA at 125°C.
8.
Active current refers to supply current during active temperature conversions or EEPROM writes.
9.
DQ line is high (“hi-Z” state).
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