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AD7417

更新时间： 2024-01-28 15:22:19
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
20页 291K
描述
10-Bit Digital Temperature Sensor (AD7416) and Single/Four-Channel ADC (AD7417/AD7418)

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AD7417 技术参数

生命周期：Active零件包装代码：DIE
包装说明：DIE,Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.59Is Samacsys：N
最大模拟输入电压：2.625 V最小模拟输入电压：
最长转换时间：15 µs转换器类型：ADC, SUCCESSIVE APPROXIMATION
JESD-30 代码：X-XUUC-N最大线性误差 (EL)：0.0977%
模拟输入通道数量：4位数：10
功能数量：1输出位码：2'S COMPLEMENT BINARY
输出格式：SERIAL封装主体材料：UNSPECIFIED
封装代码：DIE封装形状：UNSPECIFIED
封装形式：UNCASED CHIP认证状态：Not Qualified
采样并保持/跟踪并保持：TRACK标称供电电压：3 V
表面贴装：YES端子形式：NO LEAD
端子位置：UPPERBase Number Matches：1

AD7417 数据手册

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AD7416/AD7417/AD7418  
AD7416 PIN FUNCTION DESCRIPTION  
Pin No.  
Mnemonic  
SDA  
Description  
1
2
3
Digital I/O. Serial bus bidirectional data. Push-pull output.  
Digital Input. Serial bus clock.  
SCL  
OTI  
This is a logic output. The OTI is set if the result of a conversion on Channel 0 (temperature sensor) is  
greater that an 8-bit word in the OTR. The signal is reset at the end of a serial read operation. Open-  
drain output.  
4
5
6
7
8
GND  
A2  
Ground reference for track-and-hold, comparator and capacitor DAC, and digital circuitry.  
Digital Input. The highest programmable bit of the serial bus address.  
Digital Input. The middle programmable bit of the serial bus address.  
Digital Input. The lowest programmable bit of the serial bus address.  
Positive Supply Voltage, 2.7 V to 5.5 V.  
A1  
A0  
VDD  
AD7418 PIN FUNCTION DESCRIPTION  
Pin No.  
Mnemonic  
SDA  
Description  
1
2
3
Digital I/O. Serial bus bidirectional data. Push-pull output.  
Digital Input. Serial bus clock.  
SCL  
OTI  
This is a logic output. The OTI is set if the result of a conversion on Channel 0 (temperature sensor) is  
greater that an 8-bit word in the OTR. The signal is reset at the end of a serial read operation. Open-  
drain output.  
4
5
GND  
AIN  
Ground reference for track-and-hold, comparator and capacitor DAC, and digital circuitry.  
Analog Input Channel. The input channel is single-ended with respect to GND. The input channel can  
convert voltage signals in the range 0 V to VREF. The analog input channel is selected by writing to the  
configuration register of the AD7418 and choosing Channel 4. (See Control Byte section.)  
6
REFIN  
Reference Input. An external 2.5 V reference can be connected to the AD7418 at this pin. To enable the  
on-chip reference, the REFIN pin should be tied to GND. If an external reference is connected to the  
AD7418, the internal reference will shut down.  
7
8
VDD  
Positive Supply Voltage, 2.7 V to 5.5 V.  
CONVST  
Logic Input Signal. Convert start signal. The rising edge of this signal fully powers up the part. The  
power-up time for the part is 4 µs. If the CONVST pulse is greater than 4 µs, the falling edge of  
CONVST places the track-and-hold mode into hold mode and initiates a conversion. If the pulse is less  
than 4 µs, an internal timer ensures that the track-and-hold does not go into hold and conversion is not  
initiated until the power-up time has elapsed. The track-and-hold goes into track mode again at the end  
of conversion. (See Operating Mode section.)  
AD7416 PIN CONFIGURATION  
SOIC/MSOP  
AD7418 PIN CONFIGURATION  
SOIC/MSOP  
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
V
CONVST  
SDA  
SCL  
OTI  
SDA  
SCL  
OTI  
DD  
AD7416  
AD7418  
A0  
A1  
A2  
V
DD  
TOP VIEW  
TOP VIEW  
REF  
(Not to Scale)  
(Not to Scale)  
IN  
GND  
GND  
A
IN  
REV. G  
–5–  
12345678...20

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