收藏本站
参数资料
型号： ADM1034ARQZ-REEL
厂商： ANALOG DEVICES INC
元件分类： 模拟信号调理
英文描述： SPECIALTY ANALOG CIRCUIT, PDSO16
封装： LEAD FREE, MO-137AB, QSOP-16
文件页数： 8/40页
文件大小： 1318K
代理商： ADM1034ARQZ-REEL
ADM1034
Rev. 0 | Page 16 of 40
TEMPERATURE MEASUREMENT SYSTEM
INTERNAL TEMPERATURE MEASUREMENT
The ADM1034 contains an on-chip band gap temperature
sensor. The on-chip ADC performs conversions on the sensor’s
output, outputting the data in 13-bit format. The resolution of
the local temperature sensor is 0.03125°C.
Table 7 shows the format of the temperature data MSBs. Table 8
shows the same for the LSBs. To ensure accurate readings, read
the LSBs first. This locks the current LSBs and MSBs until the
MSBs are read. They then start to update again. (Reading only
the MSBs does not lock the registers.) Temperature updates to
the look-up table take place in parallel; so fan speeds may be
updated even if the MSBs are locked.
Table 7. Temperature Data Format
(Local Temperature and Remote Temperature High Bytes)
Temperature (°C)
Digital Output
64°C
0000 0000
40°C
0001 1000
32°C
0010 0000
2°C
0011 1110
1°C
0011 1111
0°C
0100 0000
1°C
0100 0001
2°C
0100 0010
10°C
0100 1010
20°C
0101 0100
50°C
0111 0010
75°C
1000 1011
100°C
1010 0100
125°C
1011 1101
150°C
1101 0110
191°C
1111 1111
Table 8. Local and Remote Sensor Extended Resolution
Extended Resolution (°C)
Temperature Low Bits
0.0000
00000
0.03125
00001
0.0625
00010
0.125
00100
0.250
01000
0.375
01100
0.500
10000
0.625
10100
0.750
11000
0.875
11100
Temperature (°C) = (MSB 64°C) + (LSB × 0.03125)
Example: MSB = 0101 0100 = 84d
LSB = 11100 = 28
Temperature °C = (84 – 64) + (28 × 0.03125) = 20.875
REMOTE TEMPERATURE MEASUREMENT
The ADM1034 can measure the temperature of two external
diode sensors or diode-connected transistors, which are
connected to Pins 9 and 10 and Pins 11 and 12. These pins are
dedicated temperature input channels. The series resistance
cancellation (SRC) feature can automatically cancel out the
effect of up to 1 k of resistance in series with the remote
thermal diode.
The forward voltage of a diode or diode-connected transistor,
operated at a constant current, exhibits a negative temperature
coefficient of about 2 mV/°C. Unfortunately, the absolute
value of Vbe varies from device to device, and individual
calibration is required to null this out. Therefore, the technique
is unsuitable for mass production.
ADM1034
2N3904
D+
04918-
0-
026
D–
ADM1034
2N3906
D+
D–
Figure 27. Measuring Temperature by Using Discreet Transistors
相关PDF资料
PDF描述
ADM1811-5AKS-REEL7 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
ADM1815-5AKS-REEL7 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
ADM1815-R23ART-REEL7 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
ADM811ZART-REEL-7 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4
ADP10 PIANO DIP SWITCH-10SWITCHES, SPST, MOMENTARY,THROUGH HOLE-STRAIGHT
相关代理商/技术参数
参数描述
ADM1034ARQZ-REEL7 功能描述:IC THERM/FAN SPEED CTRLR 16-QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:1 系列:- 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:-40°C ~ 125°C，外部传感器 精确度:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6
ADM1040 制造商:AD 制造商全称:Analog Devices 功能描述:Power Supply Monitor ASIC
ADM1041 制造商:AD 制造商全称:Analog Devices 功能描述:Secondary-Side Controller with Current Share and Housekeeping
ADM1041A 制造商:AD 制造商全称:Analog Devices 功能描述:Secondary-Side Controller with Current Share and Housekeeping
ADM1041AARQZ 功能描述:IC SECONDARY SIDE CTRLR 24QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR)
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*