参数资料
型号: LTC1392CS8#TR
厂商: Linear Technology
文件页数: 8/12页
文件大小: 252K
描述: IC DATA ACQ SYSTEM 10BIT 8SOIC
标准包装: 2,500
功能: 温度监控系统(传感器)
传感器类型: 内部
感应温度: 0°C ~ 70°C
精确度: ±4°C
拓扑: ADC,多路复用器,电压基准
输出类型: 并联,串行
输出警报:
输出风扇:
电源电压: 4.5 V ~ 6 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
8
LTC1392
APPLICATIONS INFORMATION
U
U
U
Measurement Mode Selections
The two bits of the input word following the Start Bit assign
the measurement mode for the requested conversion.
Table 1 shows the mode selections. Whenever there is a
mode change from another mode to temperature mea-
surement, a temperature mode initializing cycle is needed.
The first temperature data measurement after a mode
change should be ignored.
Table 1. Measurement Mode Selections
SELECT
SELECT
1
0
MEASUREMENT MODE
0
0
Temperature
0
1
Power Supply Voltage
1
0
Differential Input, 1V Full Scale
1
1
Differential Input, 0.5V Full Scale
MSB-First/LSB-First (MSBF)
The output data of the LTC1392 is programmed for
MSB-first or LSB-first sequence using the MSBF bit. When
the MSBF bit is a logical one, data will appear on the D
OUT
line in MSB-first format. Logical zeros will be filled in
indefinitely following the last data bit to accommodate
longer word lengths required by some microprocessors.
When the MSBF bit is a logical zero, LSB-first data will
follow the normal MSB-first data on the D
OUT
 line.
CONVERSIONS
Temperature Conversion
The LTC1392 measures temperature through the use of an
on-chip, proprietary temperature measurement technique.
The temperature reading is provided in a 10-bit, unipolar
format. Table 2 describes the exact relationship of output
data to measured temperature or equation 1 can be used
to calculate the temperature.
Temperature (癈) = Output Code/4  130
(1)
Note that the LTC1392C is only specified for operation
over the 0癈 to 70癈 temperature range and the LTC1392I
over the 40癈 to 85癈 range. Performance at tempera-
tures outside these specified temperature ranges is not
guaranteed and errors may be greater than those shown in
the Electrical Characteristics table.
Table 2. Codes for Temperature Conversion
OUTPUT CODE
TEMPERATURE (?/SPAN>C)
1111111111
125.75
1111111110
125.50
...
...
1001101101
25.25
1001101100
25.00
1001101011
24.75
...
...
0000000001
129.75
0000000000
130.00
Voltage Supply (V
CC
) Monitor
The LTC1392 measures supply voltage through the on-
chip V
CC
 supply line. The V
CC
 reading is provided in a
10-bit, unipolar format. Table 3 describes the exact rela-
tionship of output data to measured V
CC
 or equation (2)
can be used to calculate the measured V
CC
.
Measured V
CC
 =
[(Output Code) " 4.84/1024] + 2.42
(2)
The guaranteed supply voltage monitor range is from 4.5V
to 6V. Typical parts are able to maintain measurement
accuracy with V
CC
 as low as 3.25V. The typical INL and
DNL error plots shown on page 4 are measured with V
CC
from 3.63V to 6.353V.
Table 3. Codes for Voltage Supply Conversion
OUTPUT CODE
Supply Voltage (V
CC
)
1011110110
6.003V
1011110101
5.998V
...
...
1000100010
5.001V
...
...
0110111001
4.504V
0110111000
4.500V
相关PDF资料
PDF描述
TAJA105K020H CAP TANT 1UF 20V 10% 1206
GEC06DRTS-S13 CONN EDGECARD 12POS .100 EXTEND
TRJD476M016RRJ CAP TANT 47UF 16V 20% 2917
F931E226KNC CAP TANT 22UF 25V 10% 2917
TAJA334K035K CAP TANT 0.33UF 35V 10% 1206
相关代理商/技术参数
参数描述
LTC1392IN8 功能描述:IC DATA ACQ SYSTEM 10BIT 8-DIP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:2,500 系列:SilentSense™ 功能:温度监控系统(传感器) 传感器类型:内部和外部 感应温度:-55°C ~ 125°C,外部传感器 精确度:±2°C 本地(最大),±3°C 远程(最大) 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:是 输出风扇:是 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-MSOP 包装:带卷 (TR) 其它名称:MIC284-2BMMTRMIC284-2BMMTR-ND
LTC1392IN8#PBF 功能描述:IC DATA ACQ SYSTEM 10BIT 8-DIP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:2,500 系列:SilentSense™ 功能:温度监控系统(传感器) 传感器类型:内部和外部 感应温度:-55°C ~ 125°C,外部传感器 精确度:±2°C 本地(最大),±3°C 远程(最大) 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:是 输出风扇:是 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-MSOP 包装:带卷 (TR) 其它名称:MIC284-2BMMTRMIC284-2BMMTR-ND
LTC1392IS8 功能描述:IC DATA ACQ SYSTEM 10BIT 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:2,500 系列:SilentSense™ 功能:温度监控系统(传感器) 传感器类型:内部和外部 感应温度:-55°C ~ 125°C,外部传感器 精确度:±2°C 本地(最大),±3°C 远程(最大) 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:是 输出风扇:是 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-MSOP 包装:带卷 (TR) 其它名称:MIC284-2BMMTRMIC284-2BMMTR-ND
LTC1392IS8#PBF 功能描述:IC DATA ACQ SYSTEM 10BIT 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:2,500 系列:SilentSense™ 功能:温度监控系统(传感器) 传感器类型:内部和外部 感应温度:-55°C ~ 125°C,外部传感器 精确度:±2°C 本地(最大),±3°C 远程(最大) 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:是 输出风扇:是 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-MSOP 包装:带卷 (TR) 其它名称:MIC284-2BMMTRMIC284-2BMMTR-ND
LTC1392IS8#TR 功能描述:IC DATA ACQ SYSTEM 10BIT 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:2,500 系列:SilentSense™ 功能:温度监控系统(传感器) 传感器类型:内部和外部 感应温度:-55°C ~ 125°C,外部传感器 精确度:±2°C 本地(最大),±3°C 远程(最大) 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:是 输出风扇:是 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-MSOP 包装:带卷 (TR) 其它名称:MIC284-2BMMTRMIC284-2BMMTR-ND