Datasheet > AD5282BRU50

AD5282BRU50

更新时间： 2024-01-29 06:25:26

品牌	Logo	应用领域
亚德诺 - ADI		转换器电位器电阻器光电二极管
页数	文件大小	规格书
10页	154K
描述
+15V, I2C Compatible Digital Potentiometers

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AD5282BRU50 技术参数

Source Url Status Check Date：	2013-05-01 14:56:11.546	是否无铅：	含铅
是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	TSSOP	包装说明：	MO-153AB, TSSOP-16
针数：	16	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.34	其他特性：	CAN ALSO OPERATE FROM A SINGLE +5V TO +15V SUPPLY; ALSO REQUIRES A +2.7V TO +5.5V LOGIC SUPPLY
标称带宽：	0.15 kHz	控制接口：	2-WIRE SERIAL
转换器类型：	DIGITAL POTENTIOMETER	JESD-30 代码：	R-PDSO-G16
JESD-609代码：	e0	长度：	5 mm
湿度敏感等级：	1	标称负供电电压：	-5 V
功能数量：	2	位置数：	256
端子数量：	16	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装等效代码：	TSSOP16,.25
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	240	电源：	5/15/+-5 V
认证状态：	Not Qualified	电阻定律：	LINEAR
最大电阻容差：	30%	最大电阻器端电压：	5 V
最小电阻器端电压：	-5 V	座面最大高度：	1.2 mm
子类别：	Digital Potentiometers	标称供电电压：	5 V
表面贴装：	YES	标称温度系数：	30 ppm/ °C
温度等级：	INDUSTRIAL	端子面层：	Tin/Lead (Sn85Pb15)
端子形式：	GULL WING	端子节距：	0.65 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	30
标称总电阻：	50000 Ω	宽度：	4.4 mm
Base Number Matches：	1

AD5282BRU50 数据手册

PRELIMINARY TECHNICAL DATA

AD5280/AD5282

= 3.3V

= 5V

DD2

DD1

condition, Figure 2. In Read mode, the master will issue a

No Acknowledge for the 9^thclock pulse (i.e., the SDA line

remains high). The master will then bring the SDA line low

before the 10^thclock pulse which goes high to establish a

STOP condition, Figure 3.

SDA1

SCL1

SDA2

SCL2

A repeated Write function gives the user flexibility to update the

RDAC output a number of times after addressing and instructing

the part only once. During the Write cycle, each Data byte will

update the RDAC output. For example, after the RDAC has

acknowledged its Slave Address and Instruction Bytes, the

RDAC output will update after these two bytes. If another byte

is written to the RDAC while it is still addressed to a specific

slave device with the same instruction, this byte will update the

output of the selected slave device. If different instructions are

needed, the Write mode has to start with a new Slave Address,

Instruction, and Data Bytes again. Similarly, a repeated Read

function of the RDAC is also allowed.

3.3V

AD5282

PROM

Figure 6. Level Shift for different potential operation.

All digital inputs are protected with a series input resistor and

parallel Zener ESD structures shown in figure 7. Applies to

digital input pins SDA, SCL, and SHDN.

MULTIPLE DEVICES ON ONE BUS

340

Ω

Figure 5 shows four AD5282 devices on the same serial bus.

Each has a different slave address sine the state of their AD0 and

AD1 pins are different. This allows each RDAC within each

device to be written to or read from independently. The master

device output bus line drivers are open-drain pull downs in a

fully I²C compatible interface.

LOGIC

V_SS

Figure 7. ESD Protection of digital pins

A,B,W

+5V

SDA

SCL

Figure 8. ESD Protection of Resistor Terminals

MASTER

VDD

SDA SCL

AD1

SDA SCL

AD1

SDA SCL

AD1

SDA SCL

AD1

AD0

AD5282

Figure 5. Multiple AD5282 Devices on One Bus

LEVEL SHIFT FOR BI-DIRECTIONAL INTERFACE

While most old systems may be operated at one voltage, a new

component may be optimized at another. When two systems

operate the same signal at two different voltages, proper method

of level shifting is needed. For instance, one can use a 3.3V

E²PROM to interface with a 5V digital potentiometer. A level

shift scheme is needed in order to enable a bi-directional

communication so that the setting of the digital potentiometer

can be stored to and retrieved from the E²PROM. Figure 6

shows one of the techniques. M1 and M2 can be N-Ch FETs

2N7002 or low threshold FDV301N if V_DDfalls below 2.5V.

REV PrE 12 MAR 02

Information contained in this Product Concept Data Sheet describes a product in the early definition stage. There is no guarantee that the information contained here will become a final

product in its present form. For latest information contact Walt Heinzer/Analog Devices, Santa Clara, CA. TEL 408 382-3107; FAX 408 382-2721; email; walt.heinzer@analog.com

1...5 6 789 10

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AD5282BRU50 替代型号

型号	品牌	替代类型	描述	数据表
AD5282BRUZ50	ADI	完全替代	Single/Dual, +15 V/±5 V, 256-Position, I2C-Co

与AD5282BRU50相关器件

型号	品牌	获取价格	描述	数据表
AD5282BRU50-REEL7	ADI	获取价格	Single/Dual,15 V/5 V,256-Position I2C-Compatible Digital Potentiometer
AD5282BRU50-REEL7	ROCHESTER	获取价格	DUAL 50K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO16, MO
AD5282BRUZ20	ROCHESTER	获取价格	DUAL 20K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO16, RO
AD5282BRUZ200	ADI	获取价格	Single/Dual,15 V/5 V,256-Position I2C-Compatible Digital Potentiometer
AD5282BRUZ200	ROCHESTER	获取价格	Digital Potentiometer, 1 Func, 200000ohm, 2-wire Serial Control Interface, 256 Positions,
AD5282BRUZ2002	ADI	获取价格	Single/Dual,15 V/5 V,256-Position I2C-Compatible Digital Potentiometer
AD5282BRUZ200-R7	ADI	获取价格	Single/Dual, +15 V/±5 V, 256-Position, I2C-Co
AD5282BRUZ200-R72	ADI	获取价格	Single/Dual,15 V/5 V,256-Position I2C-Compatible Digital Potentiometer
AD5282BRUZ200-REEL7	ADI	获取价格	IC DUAL 200K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO16
AD5282BRUZ202	ADI	获取价格	Single/Dual,15 V/5 V,256-Position I2C-Compatible Digital Potentiometer

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