Overview
The AD8402ARZ10 is a 2-channel digital potentiometer produced by Analog Devices Inc. This device is part of the AD8400/AD8402/AD8403 family, which provides digitally controlled variable resistors. The AD8402 specifically contains two independent variable resistors in a space-saving 14-lead SOIC package. Each variable resistor offers 256 programmable positions, allowing for precise control over resistance values. The device operates over an extended industrial temperature range of -40°C to +125°C, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 2 | - |
| Number of Positions | 256 | - |
| Resistance Range | 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ | Ω |
| Package Type | 14-Lead SOIC | - |
| Temperature Range | -40°C to +125°C | °C |
| Supply Voltage Range | 2.7 V to 5.5 V | V |
| Supply Current (CMOS) | 0.01 μA to 5 μA | μA |
| Power Dissipation (CMOS) | 27.5 μW | μW |
| Integral Nonlinearity (INL) | -6 to +6 LSB | LSB |
| Differential Nonlinearity (DNL) | -4 to +2 LSB | LSB |
| Wiper Resistance | 50 Ω to 200 Ω | Ω |
Key Features
- Digitally controlled variable resistors with 256 programmable positions.
- 3-wire, SPI-compatible serial data input interface.
- Power shutdown mode with less than 5 μA current draw.
- Single-supply operation from 2.7 V to 5.5 V.
- Extended industrial temperature range of -40°C to +125°C.
- High channel-to-channel matching tolerance of ±1%.
- Low wiper resistance and high resolution for precise control.
Applications
- Mechanical potentiometer replacement.
- Programmable filters, delays, and time constants.
- Volume control and panning in audio systems.
- Line impedance matching.
- Power supply adjustment.
- Automotive applications due to its extended temperature range.
Q & A
- What is the AD8402ARZ10?
The AD8402ARZ10 is a 2-channel digital potentiometer produced by Analog Devices Inc., offering 256 programmable positions for each channel.
- What are the available resistance ranges for the AD8402ARZ10?
The resistance ranges available are 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the package type of the AD8402ARZ10?
The device is packaged in a 14-lead SOIC.
- What is the operating temperature range of the AD8402ARZ10?
The device operates over an extended industrial temperature range of -40°C to +125°C.
- What is the supply voltage range for the AD8402ARZ10?
The supply voltage range is from 2.7 V to 5.5 V.
- How many programmable positions does each channel of the AD8402ARZ10 have?
Each channel has 256 programmable positions.
- What is the typical wiper resistance of the AD8402ARZ10?
The typical wiper resistance is between 50 Ω and 200 Ω, depending on the supply voltage.
- Is the AD8402ARZ10 suitable for automotive applications?
- What interface does the AD8402ARZ10 use for data input?
The device uses a 3-wire, SPI-compatible serial data input interface.
- What is the power dissipation of the AD8402ARZ10 in CMOS mode?
The power dissipation in CMOS mode is approximately 27.5 μW.
