DS1621 Datasheet, PDF (13/16 Pages) Dallas Semiconductor – Digital Thermometer and Thermostat

ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
–0.5V to +7.0V
–55°C to +125°C
–55°C to +125°C
260°C for 10 seconds
DS1621
* This is a stress rating 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.
RECOMMENDED DC OPERATING CONDITIONS
PARAMETER
SYMBOL MIN TYP MAX
Supply Voltage
V_DD
2.7
5.5
UNITS
V
NOTES
1
DC ELECTRICAL CHARACTERISTICS
PARAMETER SYMBOL CONDITION
Thermometer Error T_ERR
0°C to 70°C
-55°C to + 0°C
and
70°C to 125°C
Low Level Input
V_IL
Voltage
High Level Input
V_IH
Voltage
Pulse width of
spikes which must
t_SP
be suppressed by
Fast Mode
the input filter
Low Level Output
Voltage
V_OL1
3 mA Sink
Current
V_OL2
6 mA Sink
Current
Input Current each
I/O Pin
0.4<V_I/O<0.9V_DD
I/O Capacitance
C_I/O
Temperature
Active Supply
Current
Conversion
I_CC
E² Write
Communi-
cation Only
Standby Supply
Current
I_STBY
Thermostat Output
V_OH
(T_OUT) Output
V_OL
Voltage
1 mA Source
4 mA Sink
(-55°C to +125°C; V_DD=2.7V to 5.5V)
MIN TYP MAX UNITS NOTES
±½
°C
11
See Typical Curve
0.5
0.3 V_DD
V
0.7 V_DD
V_DD+0.5
V
0
50
ns
0
0.4
V
0
0.6
V
-10
10
µA
2
10
pF
1000
400
µA
3, 4
100
1
µA
3, 4
2.4
V
0.4
V
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