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AD7816ARM-REEL

更新时间： 2024-01-06 02:51:28
品牌 Logo 应用领域
亚德诺 - ADI 传感器温度传感器
页数 文件大小 规格书
21页 230K
描述
Single- and 4-Channel, 9 us, 10-Bit ADCs with On-Chip Temperature Sensor

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AD7816ARM-REEL 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：SOIC-8针数：8
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.82
其他特性：THIS IS A TEMPERATURE MEASUREMENT ONLY DEVICE模拟集成电路 - 其他类型：ANALOG CIRCUIT
JESD-30 代码：R-PDSO-G8JESD-609代码：e3
长度：4.9 mm湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：125 °C最低工作温度：-55 °C
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.75 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.7 V标称供电电压 (Vsup)：3 V
表面贴装：YES温度等级：MILITARY
端子面层：MATTE TIN端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：40宽度：3.9 mm
Base Number Matches：1

AD7816ARM-REEL 数据手册

 浏览型号AD7816ARM-REEL的Datasheet PDF文件第5页浏览型号AD7816ARM-REEL的Datasheet PDF文件第6页浏览型号AD7816ARM-REEL的Datasheet PDF文件第7页浏览型号AD7816ARM-REEL的Datasheet PDF文件第9页浏览型号AD7816ARM-REEL的Datasheet PDF文件第10页浏览型号AD7816ARM-REEL的Datasheet PDF文件第11页 
AD7816/AD7817/AD7818  
AD7817 PIN FUNCTION DESCRIPTIONS  
Pin  
Mnemonic  
Description  
1
CONVST  
Logic Input Signal. The convert start signal. A 10-bit analog-to-digital conversion is initiated on the  
falling edge of this signal. The falling edge of this signal places the track/hold in hold mode. The track/  
hold goes into track mode again at the end of the conversion. The state of the CONVST signal is checked  
at the end of a conversion. If it is logic low, the AD7817 will power-down—see Operating Mode section  
of the data sheet.  
2
3
BUSY  
Logic Output. The busy signal is logic high during a temperature or voltage A/D conversion. The signal  
can be used to interrupt a microcontroller when a conversion has finished.  
Logic Output. The Overtemperature Indicator (OTI) is set logic low if the result of a conversion on  
Channel 0 (Temperature Sensor) is greater that an 8-bit word in the Overtemperature Register (OTR).  
The signal is reset at the end of a serial read operation, i.e., a rising RD/WR edge when CS is low.  
OTI  
4
CS  
Logic Input Signal. The chip select signal is used to enable the serial port of the AD7817. This is neces-  
sary if the AD7817 is sharing the serial bus with more than one device.  
5
6
AGND  
REFIN  
Analog Ground. Ground reference for track/hold, comparator and capacitor DAC.  
Analog Input. An external 2.5 V reference can be connected to the AD7817 at this pin. To enable the on-  
chip reference the REFIN pin should be tied to AGND. If an external reference is connected to the  
AD7817, the internal reference will shut down.  
7–10  
V
IN1 to VIN4  
Analog Input Channels. The AD7817 has four analog input channels. The input channels are single-  
ended with respect to AGND (analog ground). The input channels can convert voltage signals in the  
range 0 V to VREF. A channel is selected by writing to the Address Register of the AD7817—see Control  
Byte section.  
11  
12  
13  
VDD  
DGND  
DOUT  
Positive Supply Voltage, 2.7 V to 5.5 V.  
Digital Ground. Ground reference for digital circuitry.  
Logic Output With a High Impedance State. Data is clocked out of the AD7817 serial port at this pin.  
This output goes into a high impedance state on the falling edge of RD/WR or on the rising edge of the  
CS signal, whichever occurs first.  
14  
15  
DIN  
SCLK  
Logic Input. Data is clocked into the AD7817 at this pin.  
Clock Input for the Serial Port. The serial clock is used to clock data into and out of the AD7817. Data is  
clocked out on the falling edge and clocked in on the rising edge.  
16  
RD/WR  
Logic Input Signal. The read/write signal is used to indicate to the AD7817 whether the data transfer  
operation is a read or a write. The RD/WR should be set logic high for a read operation and logic low for  
a write operation.  
PIN CONFIGURATION  
SOIC/TSSOP  
1
2
CONVST  
BUSY  
O T I  
16  
15  
RD/WR  
SCLK  
D
3
4
14  
13  
IN  
AD7817  
D
CS  
OUT  
TOP VIEW  
(Not to Scale)  
AGND  
5
6
DGND  
12  
11  
V
REF  
IN  
DD  
V
V
7
8
10  
9
IN4  
IN1  
V
V
IN3  
IN2  
–8–  
REV. C  
1...567891011...21

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