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DS1721S 查看數據表(PDF) - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
DS1721S
2-Wire Digital Thermometer and Thermostat
Maxim Integrated
DS1721S Datasheet PDF : 17 Pages
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DC ELECTRICAL CHARACTERISTICS:
DIGITAL THERMOMETER
PARAMETER
SYMBOL CONDITION
-10°C to +85°C,
DS1721
Thermometer Error
T
ERR
3.0V
≤
V
DD
≤
5.5V
-10°C to +85°C,
2.7V
≤
V
DD
<3.0V
-55°C to +125°C
Resolution
9-bit
Conversions
10-bit
Conversion Time
t
CONVT
Conversions
11-bit
Conversions
12-bit
Conversions
DS1721
(-55°C to +125°C; 2.7V
£
V
DD
£
5.5V)
MIN TYP MAX UNITS NOTES
±1.0
°C
±1.5
°C
±2.0
°C
9
12
bits
93.75
187.5
ms
375
750
AC ELECTRICAL CHARACTERISTICS:
2-WIRE INTERFACE
PARAMETER
SYMBOL CONDITION
SCL Clock
Frequency
f
SCL
Fast Mode
Standard Mode
Bus Free Time
Between a STOP
and START
t
BUF
Fast Mode
Standard Mode
Condition
Hold Time
(Repeated) START
Condition
t
HD:STA
Fast Mode
Standard Mode
Low Period of
SCL Clock
t
LOW
Fast Mode
Standard Mode
High Period of
SCL Clock
t
HIGH
Fast Mode
Standard Mode
Setup Time for a
Repeated START
Condition
t
SU:STA
Fast Mode
Standard Mode
Data Hold Time
t
HD:DAT
Fast Mode
Standard Mode
Data Set-up Time
t
SU:DAT
Fast Mode
Standard Mode
Rise Time of both
SDA and SCL
Signals
t
R
Fast Mode
Standard Mode
Fall Time of both
SDA and SCL
Signals
t
F
Fast Mode
Standard Mode
Set-up time for
STOP Condition
t
SU:STO
Fast Mode
Standard Mode
(-55°C to +125°C; V
DD
=2.7V to 5.5V)
MIN TYP MAX UNITS NOTES
0
0
400
100
KHz
1.3
4.7
µs
0.6
4.0
1.3
4.7
0.6
4.0
0.6
4.7
0
0
100
250
20+0.1
C
B
20+0.1
C
B
0.6
4.0
µs
5
µs
µs
µs
0.9
µs
6
ns
7
300
1000
ns
7
300
1000
ns
8
µs
15 of 17
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