Overview
The AD8402ARZ1, produced by Analog Devices Inc., is a dual-channel, 256-position digitally controlled variable resistor (VR) device. This component functions as a digital potentiometer, offering the same electronic adjustment capabilities as a mechanical potentiometer or variable resistor. It is available in a 14-lead SOIC package and operates over a single-supply voltage range of 2.7 V to 5.5 V, making it versatile for various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 2 | - |
| Number of Positions | 256 | - |
| Nominal Resistance (RAB) | 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ | Ω |
| Temperature Coefficient | 500 ppm/°C | - |
| Supply Voltage (VDD) | 2.7 V to 5.5 V | V |
| Operating Temperature Range | −40°C to +125°C | °C |
| Package Type | 14-Lead SOIC | - |
| Interface | 3-wire, SPI-compatible serial data input | - |
| Update Data Loading Rate | 10 MHz | - |
| Power Shutdown Current | < 5 μA | μA |
Key Features
- Dual-channel, 256-position digitally controlled variable resistor.
- Available in 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ nominal resistance values.
- ±1% channel-to-channel matching tolerance.
- 3-wire, SPI-compatible serial data input with a 10 MHz update data loading rate.
- Single-supply operation from 2.7 V to 5.5 V.
- Low power shutdown current of less than 5 μA.
- Operating temperature range of −40°C to +125°C.
Applications
- Mechanical potentiometer replacement.
- Programmable filters, delays, and time constants.
- Volume control and panning.
- Line impedance matching.
- Power supply adjustment.
- Qualified for automotive applications.
Q & A
- What is the AD8402ARZ1 used for? The AD8402ARZ1 is used as a digital potentiometer, replacing mechanical potentiometers in various applications.
- How many channels does the AD8402ARZ1 have? The AD8402ARZ1 has two independent channels.
- What are the available nominal resistance values for the AD8402ARZ1? The available nominal resistance values are 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the operating temperature range of the AD8402ARZ1? The operating temperature range is −40°C to +125°C.
- What is the supply voltage range for the AD8402ARZ1? The supply voltage range is 2.7 V to 5.5 V.
- What interface does the AD8402ARZ1 use? The AD8402ARZ1 uses a 3-wire, SPI-compatible serial data input.
- What is the update data loading rate of the AD8402ARZ1? The update data loading rate is 10 MHz.
- How much current does the AD8402ARZ1 consume in power shutdown mode? The power shutdown current is less than 5 μA.
- In what package is the AD8402ARZ1 available? The AD8402ARZ1 is available in a 14-lead SOIC package.
- Is the AD8402ARZ1 qualified for automotive applications? Yes, the AD8402ARZ1 is qualified for automotive applications.
