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参数资料
| 型号： | AD5174BRMZ-10-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/20页 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT 1024POS 10K 10MSOP |
| 产品变化通告： | AD5174 Pin Requirement 14/Dec/2010 |
| 标准包装： | 1,000 |
| 接片： | 1024 |
| 电阻（欧姆）： | 10k |
| 电路数： | 1 |
| 温度系数： | 标准值 35 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | 4 线串行 |
| 电源电压： | 2.7 V ~ 5.5 V，±2.5 V ~ 2.75 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 带卷 (TR) |
AD5174
Rev. B | Page 17 of 20
EXT_CAP CAPACITOR
A 1 μF capacitor to VSS must be connected to the EXT_CAP
pin, as shown in Figure 28, on power-up and throughout the
operation of the AD5174.
AD5174
50-TP
MEMORY
BLOCK
EXT_CAP
C1
1F
VSS
08
718
-00
8
Figure 28. EXT_CAP Hardware Setup
TERMINAL VOLTAGE OPERATING RANGE
The positive VDD and negative VSS power supplies of the AD5174
define the boundary conditions for proper 2-terminal digital
resistor operation. Supply signals present on Terminal A and
Terminal W that exceed VDD or VSS are clamped by the internal
forward-biased diodes (see Figure 29).
VSS
VDD
A
W
08
718
-00
9
Figure 29. Maximum Terminal Voltages Set by VDD and VSS
The ground pin of the AD5174 is primarily used as a digital
ground reference. To minimize the digital ground bounce, join the
AD5174 ground terminal remotely to the common ground. The
digital input control signals to the AD5174 must be referenced
to the device ground pin (GND) and must satisfy the logic level
defined in the Specifications section. An internal level shift
circuit ensures that the common-mode voltage range of the
three terminals extends from VSS to VDD, regardless of the
digital input level.
POWER-UP SEQUENCE
Because there are diodes to limit the voltage compliance at
Terminal A and Terminal W (see Figure 29), it is important to
power VDD/VSS first before applying any voltage to Terminal A
and Terminal W; otherwise, the diode is forward-biased such
that VDD/VSS are powered unintentionally. The ideal power-
up sequence is VSS, GND, VDD, digital inputs, VA, and VW.
The order of powering VA, VW, and the digital inputs is not
important as long as they are powered after VDD/VSS.
As soon as VDD is powered, the power-on preset activates,
which first sets the RDAC to midscale and then restores the
last programmed 50-TP value to the RDAC register.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5175 | 制造商:AD 制造商全称:Analog Devices 功能描述:Single-Channel, 1024-Position, Digital Rheostat with I2C Interface and 50-TP Memory |
| AD5175BCPZ-10-R2 | 制造商:AD 制造商全称:Analog Devices 功能描述:Single-Channel, 1024-Position, Digital Rheostat with I2C Interface and 50-TP Memory |
| AD5175BCPZ-10-RL7 | 功能描述:IC RHEOSTAT 5V 50-TP 1024 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:3,000 系列:DPP 接片:32 电阻（欧姆）:10k 电路数:1 温度系数:标准值 300 ppm/°C 存储器类型:非易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.5 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WFDFN 裸露焊盘 供应商设备封装:8-TDFN（2x3） 包装:带卷 (TR) |
| AD5175BRMZ-10 | 功能描述:IC DGTL POT 1024POS 10K 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:3,300 系列:WiperLock™ 接片:257 电阻（欧姆）:100k 电路数:1 温度系数:标准值 150 ppm/°C 存储器类型:易失 接口:3 线 SPI（芯片选择） 电源电压:1.8 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-VDFN 裸露焊盘 供应商设备封装:8-DFN-EP（3x3） 包装:带卷 (TR) |
| AD5175BRMZ-10-RL7 | 功能描述:IC DGTL POT 1024POS 10K 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:3,000 系列:DPP 接片:32 电阻（欧姆）:10k 电路数:1 温度系数:标准值 300 ppm/°C 存储器类型:非易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.5 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WFDFN 裸露焊盘 供应商设备封装:8-TDFN（2x3） 包装:带卷 (TR) |
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