Key facts
- Brand
- Analog Devices
- Model
- AD8400/AD8402/AD8403
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 3
- Languages
- ZH · EN
- Last added
- 2026-10-18
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Analog Devices AD8400/AD8402/AD8403 Digital Potentiometer Datasheet
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.
Analog Devices AD8400/AD8402/AD8403 specifications
| 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 |
Source: Analog Devices AD8400/AD8402/AD8403 Digital Potentiometer Datasheet
All Analog Devices AD8400/AD8402/AD8403 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What are the available channel configurations for this device family?
The devices offer 1, 2, or 4 independent channels. The AD8400 has one channel, the AD8402 has two, and the AD8403 has four.
From: Analog Devices AD8400/AD8402/AD8403 Digital Potentiometer Datasheet
Is this device compatible with SPI interfaces?
Yes, the devices feature a three-wire serial input that is compatible with standard SPI.
From: Analog Devices AD8400/AD8402/AD8403 Digital Potentiometer Datasheet
How many bits of resolution are provided?
Each device provides 8‑bit (256‑position) resolution.
From: Analog Devices AD8400/AD8402/AD8403 Digital Potentiometer Handbook
What temperature range can the AD8400/AD8402/AD8403 operate in?
They are guaranteed to operate from –40 °C to +125 °C.
From: Analog Devices AD8400/AD8402/AD8403 Digital Potentiometer Handbook