This datasheet describes the AD8400, AD8402, and AD8403 digital potentiometers, featuring 1 to 4 channels with resistance values of 1kΩ, 10kΩ, 50kΩ, or 100kΩ.
The document details the Analog Devices AD8400/AD8402/AD8403 family of digital potentiometers. These devices provide 1, 2, or 4 channels with a resolution of 256 steps (8-bit), allowing them to replace mechanical potentiometers in applications such as volume control and impedance matching.
The datasheet covers technical specifications for various resistance versions (1kΩ, 10kΩ, 50kΩ, 100kΩ), including DC characteristics like nonlinearity and temperature coefficients. It also provides information on dynamic performance, timing diagrams, absolute maximum ratings, pin configurations, and application examples such as active filters. This manual is written in Chinese.
| Resolution | 256 steps (8-bit) |
|---|---|
| Nominal Resistance Options | 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Operating Temperature Range | -40°C to +125°C |
| Resistance Temperature Coefficient | 500 ppm/°C |
| Update Rate | 10 MHz |
The devices offer 1, 2, or 4 independent channels. The AD8400 has one channel, the AD8402 has two, and the AD8403 has four.
Yes, the devices feature a three-wire serial input that is compatible with standard SPI.