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| 型号： | AD7817ARZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 14/20页 |
| 文件大小： | 279K |
| 描述： | IC ADC 10BIT 4CH W/TEMP 16-SOIC |
| 标准包装： | 48 |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部 |
| 感应温度： | -55°C ~ 125°C |
| 精确度： | ±2°C |
| 拓扑： | ADC，多路复用器，寄存器库 |
| 输出类型： | MICROWIRE?，QSPI?，SPI? |
| 输出警报： | 是 |
| 输出风扇： | 是 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
| 产品目录页面： | 779 (CN2011-ZH PDF) |
REV. C
14
AD7816/AD7817/AD7818
DB7 DB0
DB7(DB9) DB0
D
OUT
CONVST
SCLK
BUSY
CS
RD/WR
D
IN
OTI
t
2
t
1
t
17
t
15
t
16
t
3
Figure 16. Mode 1 Operation
TIME secs
0.8
0.01
0
16
4
6
10
12
0.5
0.2
0.7
0.4
0.0
AIR
0.6
0.3
0.1
2
8
14
FLUID
HEAT SINK
Figure 14. Self-Heating Effect in Air, Fluid, and in Thermal
Contact with a Heat Sink
TIME secs
0.25
0.05
0.0
2.0
0.5
1.5
0.15
0.05
0.10
0.00
AIR
1.0
FLUID
HEATSINK
0.20
Figure 15. Self-Heating Effect in Air, Fluid, and in Thermal
Contact with a Heat Sink
OPERATING MODES
The AD7816, AD7817, and AD7818 have two possible modes
of operation depending on the state of the CONVST pulse at
the end of a conversion.
Mode 1
In this mode of operation the CONVST pulse is brought high
before the end of a conversion, i.e., before the BUSY goes low
(see Figure 16). When operating in this mode a new conversion
should not be initiated until 100 ns after the end of a serial read
operation. This quiet time is to allow the track/hold to accu-
rately acquire the input signal after a serial read.
Mode 2
When the AD7816, AD7817, and AD7818 are operated in Mode
2 (see Figure 17), they automatically power down at the end of
a conversion. The CONVST is brought low to initiate a conver-
sion and is left logic low until after the end of the conversion. At
this point, i.e., when BUSY goes low, the devices will power-
down. The devices are powered up again on the rising edge of
the CONVST signal. Superior power performance can be
achieved in this mode of operation by powering up the AD7816,
AD7817, and AD7818 only to carry out a conversion (see Power
vs. Throughput section). In Figure 17 the CS line is applicable
to the AD7817 only.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7817ARZ-REEL | 功能描述:IC ADC 10BIT W/TEMP SNSR 16SOIC 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 |
| AD7817ARZ-REEL7 | 功能描述:IC ADC 10BIT W/TEMP SNSR 16SOIC 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 |
| AD7817BR | 制造商:Analog Devices 功能描述:ADC Single SAR 100ksps 10-bit Serial 16-Pin SOIC N 制造商:Rochester Electronics LLC 功能描述:4 CH. ADC W/ON-CHIP TEMP SENSOR I.C. - Bulk |
| AD7817BR-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 100ksps 10-bit Serial 16-Pin SOIC N T/R 制造商:Rochester Electronics LLC 功能描述:4 CH. ADC W/ON-CHIP TEMP SENSOR I.C. - Tape and Reel |
| AD7817BR-REEL7 | 制造商:Analog Devices 功能描述:ADC Single SAR 100ksps 10-bit Serial 16-Pin SOIC N T/R 制造商:Rochester Electronics LLC 功能描述:4 CH. ADC W/ON-CHIP TEMP SENSOR I.C. - Tape and Reel |
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