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AD8403ARUZ1-REEL: 4-Channel Digital Potentiometer

The AD8400/AD8402/AD8403 provide a single, dual or quad channel, 256 position digitally controlled variable resistor (VR) device. These devices perform the same electronic adjustment function as a potentiometer or variable resistor. The AD8400 contains a single variable resistor in the compact SO-8 package. The AD8402 contains two independent variable resistors in saving SO-14 surface mount package. The AD8403 contains four independent variable resistors in 24-lead PDIP, SOIC and TSSOP packages. Each part contains a fixed resistor with a wiper contact that taps the fixed resistor value at a point determined by a digital code loaded into the controlling serial input register. The resistance between the wiper and either endpoint of the fixed resistor varies linearly with respect to the digital code transferred into the VR latch. Each variable resistor offers a completely programmable value of resistance, between the A terminal and the wiper or the B terminal and the wiper. The fixed A to B terminal resistance of 1 kΩ, 10 kΩ, 50 kΩ or 100 kΩ has a ±1% channel-to-channel matching tolerance with a nominal temperature coefficient of 500 ppm/°C. A unique switching circuit minimizes the high glitch inherent in traditional switched resistor designs avoiding any make-before-break or break-before-make operation.

Each VR has its own VR latch that holds its programmed resistance value. These VR latches are updated from an SPI compatible serial-to-parallel shift register that is loaded from a standard 3-wire serial-input digital interface. Ten data bits make up the data word clocked into the serial input register. The data word is decoded where the first two bits determine the address of the VR latch to be loaded, the last eight bits are data. A serial data output pin at the opposite end of the serial register allows simple daisy-chaining in multiple VR applications without additional external decoding logic

AD8403ARUZ1-REEL 特点
AD8403ARUZ1-REEL 功能框图

AD8403 芯片订购指南
产品型号 产品状态 封装 引脚 温度范围
AD8403AN10 量产 24 ld PDIP 24 工业
AD8403AN50 量产 24 ld PDIP 24 工业
AD8403AR1 量产 24 ld SOIC - Wide 24 工业
AD8403AR1-REEL 量产 24 ld SOIC - Wide 24 工业
AD8403AR10 量产 24 ld SOIC - Wide 24 工业
AD8403AR100 量产 24 ld SOIC - Wide 24 工业
AD8403AR100-REEL 量产 24 ld SOIC - Wide 24 工业
AD8403AR50 量产 24 ld SOIC - Wide 24 工业
AD8403AR50-REEL 量产 24 ld SOIC - Wide 24 工业
AD8403ARU1 量产 24 ld TSSOP 24 工业
AD8403ARU1-REEL 量产 24 ld TSSOP 24 工业
AD8403ARU10 量产 24 ld TSSOP 24 工业
AD8403ARU10-REEL 量产 24 ld TSSOP 24 工业
AD8403ARU100 量产 24 ld TSSOP 24 工业
AD8403ARU100-REEL 量产 24 ld TSSOP 24 工业
AD8403ARU50 量产 24 ld TSSOP 24 工业
AD8403ARUZ1 量产 24 ld TSSOP 24 汽车级
AD8403ARUZ1-REEL 量产 24 ld TSSOP 24 汽车级
AD8403ARUZ10 量产 24 ld TSSOP 24 工业
AD8403ARUZ10-REEL 量产 24 ld TSSOP 24 工业
AD8403ARUZ100 量产 24 ld TSSOP 24 工业
AD8403ARUZ100-REEL 量产 24 ld TSSOP 24 汽车级
AD8403ARUZ50 量产 24 ld TSSOP 24 工业
AD8403ARUZ50-REEL 量产 TSSOP 4.4 MM 24 工业
AD8403ARZ1 量产 24 ld SOIC - Wide 24 工业
AD8403ARZ1-REEL 量产 24 ld SOIC - Wide 24 工业
AD8403ARZ10 量产 24 ld SOIC - Wide 24 汽车级
AD8403ARZ10-REEL 量产 24 ld SOIC - Wide 24 汽车级
AD8403ARZ100 量产 24 ld SOIC - Wide 24 汽车级
AD8403ARZ100-REEL 量产 24 ld SOIC - Wide 24 汽车级
AD8403ARZ50 量产 24 ld SOIC - Wide 24 汽车级
AD8403ARZ50-REEL 量产 24 ld SOIC - Wide 24 汽车级
AD8403EVAL 量产 Evaluation Boards - 待定
AD8403WARZ50-REEL 量产 24 汽车级
AD8403ARUZ1-REEL 应用技术支持与电子电路设计开发资源下载
  1. AD8403 数据手册DataSheet下载. pdf
  2. Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .PDF