Datasheet > AD5255

AD5255

更新时间： 2022-11-24 22:03:25

品牌	Logo	应用领域
亚德诺 - ADI		电位器存储
页数	文件大小	规格书
20页	824K
描述
3-Channel Digital Potentiometer with Nonvolatile Memory

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AD5255 数据手册

AD5255

APPLICATIONS

in the laser threshold current or slope efficiency are, therefore,

compensated. As a result, this optical supervisory system

minimizes the laser characterization efforts, enabling designers

to apply comparable lasers from multiple sources.

LASER DIODE DRIVER (LDD) CALIBRATION

The AD5255 can be used with any laser diode driver. Its high

resolution, compact footprint, and superior temperature drift

characteristics make it ideal for optical parameter setting.

The ADN2841 is a 2.7 Gbps laser diode driver that uses a

unique control algorithm to manage both the laser average

power and extinction ratio after initial factory calibration. It

stabilizes the laser data transmission by continuously

monitoring its optical power and by correcting the variations

caused by temperature and the laser degradation over time. In

the ADN2841, the I_MPDmonitors the laser diode current.

Through its dual-loop power and extinction ratio control,

calibrated by the AD5255, the internal driver controls the bias

current I_BIASand consequently the average power. It also

regulates the modulation current, I_MODP, by changing the

modulation current linearly with slope efficiency. Any changes

ADN2841

AD5255

PSET

ERSET

ASET

SDA

SCL

Figure 33. Optical Supervisory System

Rev. 0 | Page 19 of 20

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型号	品牌	替代类型	描述	数据表

型号	品牌	描述	获取价格	数据表
AD5255BRU25	ADI	3-Channel Digital Potentiometer with Nonvolatile Memory	获取价格
AD5255BRU250	ADI	3-Channel Digital Potentiometer with Nonvolatile Memory	获取价格
AD5255BRU250-RL7	ADI	3-Channel Digital Potentiometer with Nonvolatile Memory	获取价格
AD5255BRU25-RL7	ADI	3-Channel Digital Potentiometer with Nonvolatile Memory	获取价格
AD5258	ADI	Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer	获取价格
AD5258BRMZ1	ADI	Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer	获取价格