参数资料
型号: DS1731U+T&R
厂商: Maxim Integrated
文件页数: 5/16页
文件大小: 435K
描述: IC THERMOMETER DIG HI-PREC 8MSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 3,000
功能: 温度计,恒温计
传感器类型: 内部
感应温度: -55°C ~ 125°C
精确度: ±2°C(最小值)
拓扑: ADC(三角积分型),比较器,寄存器库
输出类型: I²C?/SMBus?
输出警报:
输出风扇:
电源电压: 2.7 V ~ 5.5 V
工作温度: -55°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-uMAX
包装: 带卷 (TR)
DS1631/DS1631A/DS1731
 
5 of 15 
AC ELECTRICAL CHARACTERISTICS
(V
DD
= 2.7V to 5.5V; T
A
 = -55癈 to +125癈.)
PARAMETER
SYMBOL    CONDITION
MIN
TYP   MAX   UNITS    NOTES
9-bit resolution
 
 
93.75
10-bit
resolution
 
 
187.5
11-bit
resolution
 
 
375
Temperature
Conversion Time
t
TC
 
12-bit
resolution
 
 
750
ms
 
SCL Frequency
f
SCL
 
 
0
 
400
kHz
 
Bus Free Time
Between a STOP and
START Condition
t
BUF
 
 
1.3
 
 
5
START and Repeated
START Hold Time
from Falling SCL
t
HD:STA
 
 
0.6
 
 
5, 6
Low Period of SCL
t
LOW
 
 
1.3
 
 
5
High Period of SCL
t
HIGH
 
 
0.6
 
 
5
Repeated START
Condition Setup Time
to Rising SCL
t
SU:STA
 
 
0.6
 
 
5
Data-Out Hold Time
from Falling SCL
t
HD:DAT
 
 
0
 
 
0.9
5
Data-In Setup Time to
Rising SCL
t
SU:DAT
 
 
100
 
 
ns
5
Rise Time of SDA and
SCL
t
R
 
 
20 + 0.1C
B
 
 
1000
ns
5, 7
Fall Time of SDA and
SCL
t
F
 
 
20 + 0.1C
B
 
 
300
ns
5, 7
STOP Setup Time to
Rising SCL
t
SU:STO
 
 
0.6
 
 
5
Capacitive Load for
Each Bus Line
C
B
 
 
 
 
400
pF
 
I/O Capacitance
C
I/O
 
 
10
 
pF
 
Input Capacitance
C
I
 
 
 
5
 
pF
 
Spike Pulse Width that
can be Suppressed by
Input Filter
t
SP
 
 
0
 
50
ns
 
 
NOTES:
1) All voltages are referenced to GND.
2) See Figure 2 for Typical Operating Curves.
3) Specified with T
OUT
 pin open; A
0
, A
1
, A
2
 = 0V or V
DD
; and f
SCL
 e 2Hz.
4) Specified with temperature conversions stopped; T
OUT
 pin open; SDA = V
DD
; SCL = V
DD
; and A
0
, A
1
,
A
2
 = 0V or V
DD
.
5) See Timing Diagram in Figure 3. All timing is referenced to 0.9 x V
DD
 and 0.1 x V
DD
.
6) After this period the first clock pulse is generated.
7) For example, if C
B
= 300pF, then t
R
[min] = t
F
[min] = 50ns.
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