DS1821S+ Maxim Integrated Products, DS1821S+ Datasheet - Page 15
![IC THERMOMETER/STAT PROG 8-SOIC](/photos/6/58/65843/8-soic_21-0262_sml.jpg)
DS1821S+
Manufacturer Part Number
DS1821S+
Description
IC THERMOMETER/STAT PROG 8-SOIC
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1821.pdf
(18 pages)
Specifications of DS1821S+
Function
Thermometer, Thermostat
Topology
Comparator, Register Bank
Sensor Type
Internal
Sensing Temperature
-55°C ~ 125°C
Output Type
Digital
Output Alarm
No
Output Fan
No
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
Temperature Threshold
Programmable
Full Temp Accuracy
+/- 1 C
Digital Output - Bus Interface
1-Wire
Digital Output - Number Of Bits
8 bit
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Supply Current
1000 uA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
ABSOLUTE MAXIMUM RATINGS*
Voltage on any pin relative to ground
Operating temperature
Storage temperature
Soldering temperature
*These are stress ratings only and functional operation of the device at these or any other conditions
DC ELECTRICAL CHARACTERISTICS
PARAMETER
Supply Voltage
Thermometer
Error
DQ Logic Low
DQ Logic High
Sink Current
Standby Current
Active Current
DQ Input
Current
NOTES:
1.
2.
3.
4.
5.
6.
7.
8.
9.
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.
All voltages are referenced to ground.
Thermometer error reflects the sensor accuracy as tested during calibration.
See typical performance curve in Figure 11 for specification limits outside the 0°C to +85°C range.
For T<0°C, accuracy degrades by 0.5°C/V for V
Logic low voltages are specified at a sink current of 4 mA.
Logic high voltages are specified at a source current of 1 mA.
Standby current is typically 5 μA at 125°C.
Active current refers to supply current during active temperature conversions or EEPROM writes.
DQ line is high (“hi-Z” state).
SYMBOL
V
t
V
V
I
I
ERR
I
I
DD
DQ
DD
Q
L
IH
IL
V
V
V
-55°C to +125°C
DD
DD
DD
-55°C to +85°C
CONDITION
0°C to +85°C
V
= 3.6V to 5.5V
= 3.6V to 5.5V
= 3.6V to 5.5V
V
DQ
DD
= 0.4V
= 5V
–0.5V to +7.0V
–55°C to +125°C
–55°C to +125°C
See-JTD-020A Specification
15 of 18
DD
MIN
+2.7
-0.3
+2
<4.3V.
4
(-55°C to +125°C; V
TYP
See Typical Curve (Figure 11)
500
1
5
±1
The lower of
V
DD
MAX
1000
+5.5
+0.8
+5.5
or
3
+ 0.3
DD
°C
UNITS
=2.7V to 5.5V)
mA
μA
μA
µA
V
V
NOTES
2,3,4
1,5
1,6
1
1
7
8
9