Overview
The AD8402ARUZ50 is a dual-channel, volatile digital potentiometer produced by Analog Devices Inc. This device is part of the AD8400/AD8402/AD8403 series, which offers single-, dual-, or quad-channel digitally controlled variable resistors. The AD8402ARUZ50 features a 256-position linear taper with a resistance range of 50kΩ, making it suitable for precise digital control of resistance in various applications. It communicates over an SPI interface and operates from a 2.7V to 5.5V supply voltage, with an operating temperature range of -40°C to 125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 2 | - |
| Positions | 256 | - |
| Resistance Range | 50kΩ | Ω |
| Supply Voltage | 2.7V to 5.5V | V |
| Operating Temperature | -40°C to 125°C | °C |
| Wiper Resistance | 200Ω (typical at 3V) | Ω |
| Resistance Tolerance | ±30% | % |
| Temperature Coefficient | 500 ppm/°C | ppm/°C |
| Interface | SPI-compatible serial data input | - |
| Package Type | 14-Lead TSSOP | - |
Key Features
- Dual-channel digital potentiometer with 256-position linear taper
- Precise digital control of resistance
- Wide operating voltage range (2.7V to 5.5V)
- Broad temperature tolerance (-40°C to 125°C)
- Compact surface mount package (14-Lead TSSOP)
- SPI-compatible serial data input
- Low power shutdown (less than 5 μA)
- High channel-to-channel matching tolerance (±1%)
Applications
- Audio and video equipment
- Automation and control systems
- Test and measurement instruments
- Industrial equipment
- Consumer electronics
- Mechanical potentiometer replacement
- Programmable filters, delays, time constants
- Volume control, panning
- Line impedance matching
- Power supply adjustment
Q & A
- What is the AD8402ARUZ50? The AD8402ARUZ50 is a dual-channel, volatile digital potentiometer from Analog Devices Inc.
- What is the resistance range of the AD8402ARUZ50? The resistance range is 50kΩ.
- What is the operating voltage range of the AD8402ARUZ50? The operating voltage range is from 2.7V to 5.5V.
- What interface does the AD8402ARUZ50 use? It uses an SPI-compatible serial data input.
- What is the typical wiper resistance of the AD8402ARUZ50? The typical wiper resistance is 200Ω at 3V.
- What are the key applications of the AD8402ARUZ50? Key applications include audio and video equipment, automation and control systems, test and measurement instruments, industrial equipment, and consumer electronics.
- What is the operating temperature range of the AD8402ARUZ50? The operating temperature range is -40°C to 125°C.
- What is the package type of the AD8402ARUZ50? The package type is 14-Lead TSSOP.
- Does the AD8402ARUZ50 have low power shutdown? Yes, it has a low power shutdown of less than 5 μA.
- Is the AD8402ARUZ50 suitable for automotive applications? Yes, it is qualified for automotive applications.
