参数资料
| 型号： | AD5258BRMZ10 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/24页 |
| 文件大小： | 0K |
| 描述： | IC POT DGTL I2C 10K 64P 10MSOP |
| 标准包装： | 50 |
| 接片： | 64 |
| 电阻（欧姆）： | 10k |
| 电路数： | 1 |
| 温度系数： | 标准值 200 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 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： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 管件 |
| 产品目录页面： | 787 (CN2011-ZH PDF) |
| 配用： | AD5258EVAL-ND - BOARD EVAL FOR AD5258 DGTL POT |
Data Sheet
AD5258
Rev. D | Page 19 of 24
ESD PROTECTION OF DIGITAL PINS AND
RESISTOR TERMINALS
The AD5258 VDD, VLOGIC, and GND power supplies define the
boundary conditions for proper 3-terminal and digital input
operation. Supply signals present on Terminal A, Terminal B,
and Terminal W that exceed VDD or GND are clamped by the
internal forward-biased ESD protection diodes (see Figure 40).
Digital Input SCL and Digital Input SDA are clamped by ESD
protection diodes with respect to VLOGIC and GND as shown in
GND
A
W
B
VDD
05029-
041
Figure 40. Maximum Terminal Voltages Set by VDD and GND
05029-
042
GND
SCL
SDA
VLOGIC
Figure 41. Maximum Terminal Voltages Set by VLOGIC and GND
POWER-UP SEQUENCE
Because the ESD protection diodes limit the voltage compliance
at Terminal A, Terminal B, and Terminal W (see Figure 40), it is
important to power GND/VDD/VLOGIC before applying any volt-
age to Terminal A, Terminal B, and Terminal W; otherwise, the
diode is forward-biased such that VDD and VLOGIC are powered
unintentionally and may affect the user’s circuit. The ideal
power-up sequence is in the following order: GND, VDD,
VLOGIC, digital inputs, and then VA, VB, VW. The relative order
of powering VA, VB, VW and the digital inputs is not important
as long as they are powered after GND, VDD, and VLOGIC.
LAYOUT AND POWER SUPPLY BYPASSING
It is good practice to employ compact, minimum lead length
layout design. The leads to the inputs should be as direct as
possible with minimum conductor length. Ground paths
should have low resistance and low inductance.
Similarly, it is also good practice to bypass the power supplies
with quality capacitors for optimum stability. Supply leads to
the device should be bypassed with disc or chip ceramic capaci-
tors of 0.01 F to 0.1 F. In addition, low ESR 1 F to 10 F
tantalum or electrolytic capacitors should be applied at the
supplies to minimize any transient disturbance and low fre-
quency ripple (see Figure 42). As well, the digital ground
should be joined remotely to the analog ground at one point
to minimize the ground bounce.
VDD
GND
VDD
C2
10F
C1
0.1F
AD5258
+
05029-
043
Figure 42. Power Supply Bypassing
MULTIPLE DEVICES ON ONE BUS
The AD5258 has two configurable address pins, AD0 and AD1.
The state of these two pins is registered upon power-up and
decoded into a corresponding I2C-compatible 7-bit address (see
Table 5). This allows up to four devices on the bus to be written
to or read from independently.
相关PDF资料 |
PDF描述 |
|---|---|
| AD5259BCPZ5-R7 | IC POT DGTL 5K 256POS 10LFCSP |
| AD5262BRU20 | IC POT DUAL 20K 256POS 16TSSOP |
| AD5263BRU20 | IC POT QUAD 20K 256POS 24-TSSOP |
| AD5270BRMZ-100 | IC RHEOSTAT 5V 50TP 1024 10MSOP |
| AD5272BRMZ-100-RL7 | IC RHEOSTAT 5V 50-TP 1024 10MSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5258BRMZ100 | 功能描述:IC POT DGTL I2C 100K 64P 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) |
| AD5258BRMZ1001 | 制造商:AD 制造商全称:Analog Devices 功能描述:Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer |
| AD5258BRMZ100-R7 | 功能描述:IC POT DGTL I2C 100K 64P 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) |
| AD5258BRMZ100-R71 | 制造商:AD 制造商全称:Analog Devices 功能描述:Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer |
| AD5258BRMZ101 | 制造商:AD 制造商全称:Analog Devices 功能描述:Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer |
发布紧急采购，3分钟左右您将得到回复。