添加到信号链设计器

AD5174:  单通道、1024位数字变阻器,配有SPI接口和50-TP存储器

产品详情

产品状态:推荐用于新设计

AD5174是一款单通道1024位数字变阻器,集业界领先的可变电阻性能与非易失性存储器(NVM)于一体,采用紧凑型封装。

该器件既可以采用±2.5 V至±2.75 V的双电源供电,也可以采用2.7 V至5.5 V的单电源供电,并提供50次可编程(50-TP)存储器。

AD5174的游标设置可通过SPI数字接口控制。将电阻值编程写入50-TP存储器之前,可进行无限次调整。AD5174不需要任何外部电压源来帮助熔断熔丝,并提供50次永久编程的机会。在50-TP激活期间,一个永久熔断熔丝指令会将电阻位置固定(类似于将环氧树脂涂在机械式调整器上)。

AD5174提供3 mm × 3 mm 10引脚LFCSP和10引脚MSOP两种封装。保证工作温度范围为−40°C至+125°C扩展工业温度范围。

应用
  • 机械变阻器的替代产品
  • 运算放大器:可变增益控制
  • 仪器仪表:增益、失调电压调整
  • 可编程电压至电流转换
  • 可编程滤波器、延迟、时间常数
  • 可编程电源
  • 传感器校准

特点和优势

  • 单通道、1024位分辨率
  • 标称电阻:10 kΩ
  • 50次可编程(50-TP)游标存储器
  • 温度系数(变阻器模式):35 ppm/°C
  • 单电源供电:2.7 V至5.5 V
  • 双电源供电:±2.5 V至±2.75 V(交流或双极性工作模式)
  • SPI兼容型接口
  • 游标设置和存储器回读
  • 上电时从存储器刷新
  • 电阻容差存储在存储器中
  • 薄型LFCSP、10引脚、3 mm x 3 mm x 0.8 mm封装
  • 紧凑型MSOP、10引脚、3 mm × 4.9 mm × 1.1 mm封装

AD5174 Functional Block Diagram

类似产品

  • AD5170:256位、可二次编程的I2C兼容数字电位计
  • AD5171:64位OTP数字电位计
  • AD5172:256位、一次性可编程、双通道、I2C数字电位计

More

文档

快讯名称 内容类型 文件类型
AD5174: Single-Channel, 1024-Position, Digital Rheostat with SPI Interface and 50-TP Memory Data Sheet (Rev B, 12/2010) (pdf, 1002 kB) 产品数据手册 PDF
为您的应用选择合适的数字电位计  (pdf, 1313 kB) 设计手册 PDF
Understanding and Applying Digital Potentiometers
In this webcast our experts will explain the differences between Pots and DigiPots and DACs, and present considerations for successful designs for many applications.
在线研讨会 WEBCAST
UG-094: Evaluation Board for 10-Bit, Serial Input, High Precision Digital Rheostats  (pdf, 432 kB) 用户指导 PDF
为您的应用选择合适的数字电位计  (pdf, 1313 kB) 概况 PDF
Is there a power up sequence I should follow? 常见问题解答 HTML
For dual supply digital potentiometers, if VDD/VSS are +2.5V/-2.5V respectively, can digital inputs be fed from a standard 3.3V CMOS logic component without logic level translation? What are the logic level thresholds when VDD is +2.5V and VSS is -2.5V? 常见问题解答 HTML
Is there a dependency between the logic level and power consumption? 常见问题解答 HTML
Is digital potentiometer a real replacement for mechanical potentiometer or are there restrictions regarding voltage potentials? 常见问题解答 HTML
Are all digital potentiometers limited to |5V|? 常见问题解答 HTML
Do digital potentiometers handle bipolar and AC operations? 常见问题解答 HTML
Can I achieve a 15V signal swing when using a 5V digital potentiometer? 常见问题解答 HTML
For digital potentiometers that do not have nonvolatile memory, what is the state during power up? 常见问题解答 HTML
Is there a particularly low-power digital potentiometer? 常见问题解答 HTML
Does the memory allow the device to return to the last stored value without an update from a micro? 常见问题解答 HTML
Will the data in the EEMEM need to be refreshed after 15 yrs when it is operated at 55°C? 常见问题解答 HTML
How many write cycles can the EEMEM go through before it fails? 常见问题解答 HTML
After the specified EEMEM data retention timeout period, can the power be turned off and back on so that the part is considered "refreshed"? 常见问题解答 HTML
Why are some digital potentiometers' maximum operating temperature only 85°C instead of the standard 125°C? 常见问题解答 HTML
How good is the resistance matching between Ch1 and Ch2 in the dual digital potentiometer? 常见问题解答 HTML
How is the resistance matching device to device? 常见问题解答 HTML
What is the resistance tolerance of the digital potentiometers? 常见问题解答 HTML
Can I cascade, serialize, or parallel multiple digital potentiometers to get the resistance or resolution I need? My requirement is for a 250 Ω digital potentiometer with approximately 1 Ω/step. I plan to use four 1 kΩ AD8403 in parallel with each set to nominally the same value. 常见问题解答 HTML
I would like to know how the digital potentiometer is built. How ideal are the wiper switches? 常见问题解答 HTML
What is the tempco of the digital potentiometer? 常见问题解答 HTML
What is the maximum current I can force into the digital potentiometer? 常见问题解答 HTML
Can a digitally controlled variable resistor withstand greater than 20mA? 常见问题解答 HTML
Can a digipot be used to construct a programmable high current source? 常见问题解答 HTML
If I use the digital potentiometer in a "dry" circuit (current through wiper < 1 pA), will it behave as a linear resistor in rheostat mode? 常见问题解答 HTML
Are ADI's digital potentiometers suitable for use in photodetector amplifiers and will they suffer from leakage currents which could affect the gain of the circuit? 常见问题解答 HTML
Regarding the spec on R-DNL, I am only concerned with relative adjustments. I'm not concerned with the actual value of the resistor in the digipot but need the digipot to be monotonic. 常见问题解答 HTML
Can I adjust the digital potentiometer for frequencies around 1MHz to 10MHz for adjusting the gain of a video signal? 常见问题解答 HTML
What is the maximum frequency that can be applied to the digital potentiometer CLK input? 常见问题解答 HTML
Is there crosstalk between Ch1 and Ch2 of a dual digital potentiometer such that a sine wave applied to Ch1 will occur in Ch2 as well? 常见问题解答 HTML
If I program Ch 1 from zero to full scale, will I expect Ch 2 to be disturbed? 常见问题解答 HTML
Digital Feedthrough 常见问题解答 HTML
How is the THD performance of digital potentiometer? 常见问题解答 HTML
If I use the digital potentiometer in audio volume control, will I experience zipper noise? 常见问题解答 HTML
For a digital potentiometer that requires 6-bit word length, what happens if I have 8-bit word length from my PC? 常见问题解答 HTML
For a digital potentiometer that requires 12-bit word length, how can I control with only 8-bit word length from my micro? 常见问题解答 HTML
Do you provide any software to control the digital potentiometers? 常见问题解答 HTML
How do I daisy-chain multiple potentiometers? How does the serial interface work for multiple AD8403's when there are still only two address bits? Are there multiple /CS lines, one for each individual chip? 常见问题解答 HTML
Can I program two channels of a multi-channel digital potentiometer at the same time? 常见问题解答 HTML
Can I read back the wiper setting of the digital potentiometers? 常见问题解答 HTML
Can I read back the contents of the two RDAC registers of AD5242 or AD5282 (dual I2C compatible digital potentiometer)? 常见问题解答 HTML
Is there a digital potentiometer controlled by a parallel input? 常见问题解答 HTML
Can digital potentiometers do log taper adjustment? 常见问题解答 HTML
I'm unsure about how to use pin 13 write protect (/WP), pin 14 preset (/PR), and pin 16 ready (RDY)? 常见问题解答 HTML
Why Should I replace mechanical potentiometers with digiPOT? 常见问题解答 HTML
What should I watch out for when I replace mechanical potentiometers with digital potentiometers? 常见问题解答 HTML
What is the ESD rating of digital potentiometers? 常见问题解答 HTML
How do I tell the end-to-end RAB resistance value? 常见问题解答 HTML
What are the common failure modes of digital potentiometers? 常见问题解答 HTML
Are there any evaluation boards for the digital potentiometers? 常见问题解答 HTML
Are PB-free digital potentiometers available? 常见问题解答 HTML
Can I use the new PB-free DigiPOTs in my traditional solder based PCB assembly process? 常见问题解答 HTML
Programmable 5-30V Power Supply 常见问题解答 HTML
Programmable LDO with Precision 常见问题解答 HTML
Manual Push Button LED Driver 常见问题解答 HTML
Adjustable Voltage Source for Driving LED 常见问题解答 HTML
Adjustable Current Source for Driving Single LED 常见问题解答 HTML
Adjustable Current Source for Driving Multiple LEDs 常见问题解答 HTML
Programmable Bidirectional Current Source 常见问题解答 HTML
High Power RGB LEDs Driver 常见问题解答 HTML
Automatic LED Brightness Control 常见问题解答 HTML
High Voltage DAC 常见问题解答 HTML
Bipolar DAC with EEPROM 常见问题解答 HTML
Voltage-to-Current Conversion 常见问题解答 HTML
Programmable Low Pass Filter 常见问题解答 HTML
Programmable State-Variable Filter 常见问题解答 HTML
Programmable Oscillator 常见问题解答 HTML
Audio Volume Control 常见问题解答 HTML
Audio Amplifier Volume Control 常见问题解答 HTML
LCD Panel VCOM Adjustment 常见问题解答 HTML
Laser Bias and Modulation Current Biasing 常见问题解答 HTML
Manual Rotary Control 常见问题解答 HTML
Bipolar Programmable Gain Amplifier 常见问题解答 HTML
Programmable Current-Sensing Amplifier 常见问题解答 HTML
6-Bit Controller 常见问题解答 HTML
Level Shifting Digital Inputs from 3.3V to 5V or Vice Versa 常见问题解答 HTML
Level Shifting Digital Signals from 0V to +5V to -5V to 0V 常见问题解答 HTML
Multiple I2C Slave Devices Addressing 常见问题解答 HTML
Resolution Enhancement 常见问题解答 HTML
Pseudo Memory Retention 常见问题解答 HTML
RAQs index 非常见问题解答 HTML
术语表 专业词汇表 HTML

评估套件,原理图符号和PCB封装

原理图符号和PCB封装— ADI公司提供与当今众多CAD系统兼容的原理图符号和PCB封装(Symbols & Footprints),以便更广泛、更轻松地使用。

Sample样片申请及购买

价格,封装及供货状态

AD5174 型号选项
产品型号 封装 引脚 温度范围 包装和数量 报价*(100-499) 报价*1000 pcs RoHS 查看PCN/PDN 查看库存/
购买/样片
AD5174BCPZ-10-RL7 产品状态: 量产 10 ld LFCSP (3x3mm) 10 工业 Reel, 1500 - $ 1.45 Y  材料信息 查看PCN 订购 样片
AD5174BRMZ-10 产品状态: 量产 10 ld MSOP 10 工业 Tube, 50 $ 1.77 $ 1.45 Y  材料信息 查看PCN 订购 样片
AD5174BRMZ-10-RL7 产品状态: 量产 10 ld MSOP 10 工业 Reel, 1000 - $ 1.45 Y  材料信息 查看PCN 订购
帮助

这里所列出的美国报价单仅供预算参考,指美元报价(规定订量的每片美元,美国离岸价),如有修改不再另行通知。由于地区关税、商业税、汇率及手续费原因,国际报价可能不同。对于特殊批量报价,请与您当地的ADI公司办事处或代理商联络。对于评估板和套件的报价是指一个单位价格。

沪ICP备09046653号
产品评价 X
content here.
content here.

产品评价

关闭