Overview
The AD8403ARUZ50-REEL, produced by Analog Devices Inc., is a 4-channel digital potentiometer that offers a versatile and programmable solution for various electronic applications. This device is part of the AD8400/AD8402/AD8403 series, which provides single-, dual-, or quad-channel digitally controlled variable resistors. The AD8403 specifically contains four independent variable resistors, each with 256 programmable positions, making it an ideal replacement for mechanical potentiometers and variable resistors.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 4 |
| Number of Positions | 256 |
| Operating Temperature Range | -40°C to +125°C |
| Resistance Values | 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ |
| Resistance Tempco (typ) | 500 ppm/°C |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Power Shutdown Current | < 5 μA |
| Serial Interface | 3-Wire SPI-Compatible |
| Update Data Loading Rate | 10 MHz |
| Package Type | 24-Lead TSSOP, 24-Lead SOIC (Wide) |
| RoHS Compliance | Compliant |
Key Features
- 256-position digitally controlled variable resistors with linear resistance variation.
- Single-supply operation from 2.7 V to 5.5 V, suitable for battery-powered applications.
- Low power shutdown current of less than 5 μA.
- 3-Wire SPI-compatible serial data input with a 10 MHz update data loading rate.
- Available in 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ resistance values.
- ±1% channel-to-channel matching tolerance and a nominal temperature coefficient of 500 ppm/°C.
- Available in 24-lead TSSOP and 24-lead SOIC (Wide) packages.
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 AD8403ARUZ50-REEL used for? The AD8403ARUZ50-REEL is a 4-channel digital potentiometer used to replace mechanical potentiometers and variable resistors in various electronic applications.
- What are the available resistance values for the AD8403? The AD8403 is available in 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ resistance values.
- What is the operating temperature range of the AD8403? The operating temperature range is -40°C to +125°C.
- What is the supply voltage range for the AD8403? The supply voltage range is from 2.7 V to 5.5 V.
- What is the power shutdown current of the AD8403? The power shutdown current is less than 5 μA.
- What type of serial interface does the AD8403 use? The AD8403 uses a 3-Wire SPI-compatible serial data input.
- What is the update data loading rate of the AD8403? The update data loading rate is 10 MHz.
- In what packages is the AD8403 available? The AD8403 is available in 24-lead TSSOP and 24-lead SOIC (Wide) packages.
- Is the AD8403 RoHS compliant? Yes, the AD8403 is RoHS compliant.
- What are some common applications of the AD8403? Common applications include mechanical potentiometer replacement, programmable filters, volume control, line impedance matching, and power supply adjustment.
