Datasheet > AD5235BRU25

AD5235BRU25

更新时间： 2024-02-22 06:28:21

品牌	Logo	应用领域
亚德诺 - ADI		电位器
页数	文件大小	规格书
10页	104K
描述
Nonvolatile Memory, Dual 1024 Position Digital Potentiometers

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技术参数
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AD5235BRU25 技术参数

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：	TSSOP, TSSOP16,.25	针数：	16
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.47
Samacsys Description：	1024-Position Digital Potentiometer	其他特性：	LINEAR OR LOG TAPER SETTINGS; NONVOLATILE MEMORY; CAN ALSO OPERATE FROM +/-2.25V TO +/-2.75V SUPPLY
标称带宽：	0.125 kHz	控制接口：	3-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	功能数量：	2
位置数：	1024	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：	+-2.5/3/5 V	认证状态：	Not Qualified
电阻定律：	LOGARITHMIC	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：
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：	35 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：	25000 Ω
宽度：	4.4 mm

AD5235BRU25 数据手册

PRELIMINARY TECHNICAL DATA

Nonvolatile Memory Digital Potentiometers

AD5235

R_WA(Dx) = [ (2^N-Dx)/2^N] * R_AB+ R_W

Similarly, eqn. 3 becomes:

eqn. 3

ESD PROTECTION CIRCUITS

V_{D D}

INPUTS

R_WA(Dx) = [ (1024-Dx)/1024 ] * R_AB+ 50Ω eqn. 4

LO G IC

PINS

For example, when V_A= 0V and B–terminal is tied to the wiper W

the following output resistance values will be set for the following

RDAC latch codes (applies to R_AB=10KΩ potentiometers):

R_WA

Output State

G ND

(DEC) (Ω)

Figure 5A. Equivalent Digital Input ESD Protection

1023

512

Full-Scale

V_{D D}

12500 Mid-Scale

25000 1 LSB

25050 Zero-Scale

O UTPUTS

O 1 & O 2

PINS

A ±1% typical distribution of R_ABfrom channel-to-channel occurs

within the same package. On the other hand, device to device

matching is process lot dependent such that a maximum of ±30%

variation is possible. The change in R_ABwith temperature has a 50

ppm/°C temperature coefficient.

G ND

PROGRAMMING THE POTENTIOMETER DIVIDER

Voltage Output Operation

Figure 5B. Equivalent Digital Output ESD Protection

V_{D D}

The digital potentiometer easily generates an output voltage

proportional to the input voltage applied to a given terminal. For

example connecting A–terminal to +5V and B–terminal to ground

produces an output voltage at the wiper which can be any value

starting at zero volts and up to 1 LSB less than +5V. Each LSB of

voltage is equal to the voltage applied across terminal AB divided

by the 2^Nresolution of the potentiometer divider. The general

equation defining the output voltage with respect to ground for any

given input voltage applied to terminals AB is:

OUTPUTS

SDO

V_W(Dx) = Dx/2^N* V_AB+ V_Beqn. 5

GND

Since N=10,

Figure 5C. Equivalent SDO Output ESD Protection Circuit

V_W(Dx) = (Dx/1024) * V_AB+ V_B

eqn. 6

Figure 5 shows the equivalent ESD protection circuit for digital

pins. Figure 6 shows the equivalent analog-terminal protection

circuit for the variable resistors.

Operation of the digital potentiometer in the divider mode results in

more accurate operation over temperature. Here the output voltage

is dependent on the ratio of the internal resistors and not the

absolute value. Therefore, the drift reduces to 15ppm/°C.

PO TENTIO M ETER

TERM INALS

A, B, W

PINS

V_{S S}

Figure 6. Equivalent VR-Terminal ESD Protection

REV PrD 6 NOV, 2000

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)562-7254; FAX (408)727-1550; walt.heinzer@analog.com

1...5 6 789 10

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AD5235BRU25 替代型号

型号	品牌	替代类型	描述	数据表
AD5235BRUZ25	ADI	功能相似	Nonvolatile Memory, Dual 1024-Position Digital Potentiometer

与AD5235BRU25相关器件

型号	品牌	获取价格	描述	数据表
AD5235BRU250	ADI	获取价格	Nonvolatile Memory, Dual 1024 Position Digital Potentiometers
AD5235BRU250-RL7	ROCHESTER	获取价格	DUAL 250K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 1024 POSITIONS, PDSO16,
AD5235BRU250-RL7	ADI	获取价格	IC DUAL 250K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 1024 POSITIONS, PDSO1
AD5235BRU25-EP-RL7	ADI	获取价格	Nonvolatile Memory, Dual 1024-Position Digital Potentiometer
AD5235BRU25-RL7	ROCHESTER	获取价格	DUAL 25K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 1024 POSITIONS, PDSO16, M
AD5235BRUZ25	ADI	获取价格	Nonvolatile Memory, Dual 1024-Position Digital Potentiometer
AD5235BRUZ25	ROCHESTER	获取价格	DUAL 25K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 1024 POSITIONS, PDSO16, R
AD5235BRUZ250	ADI	获取价格	Nonvolatile Memory, Dual 1024-Position Digital Potentiometer
AD5235BRUZ250	ROCHESTER	获取价格	DUAL 250K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 1024 POSITIONS, PDSO16,
AD5235-EP	ADI	获取价格	Nonvolatile Memory, Dual 1024-Position Digital Potentiometer

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