Overview
The AD8403ARZ1-REEL, produced by Analog Devices Inc., is a quad-channel, 256-position digitally controlled variable resistor (VR) device. This component is part of the AD8400/AD8402/AD8403 series, which replaces traditional mechanical potentiometers or variable resistors with digital control. The AD8403 contains four independent variable resistors, each offering a completely programmable value of resistance between the A terminal and the wiper or the B terminal and the wiper. It is available in a 24-lead SOIC (Wide) package and is suitable for a variety of applications requiring precise and programmable resistance adjustments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 4 | |
| Number of Taps | 256 | |
| Available Resistance Values | 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ | |
| Power Shutdown Current | < 5 μA | |
| Serial Interface | 3-Wire SPI-Compatible | |
| Update Data Loading Rate | 10 MHz | |
| Supply Voltage Range | 2.7 V to 5.5 V | |
| Operating Temperature Range | −40°C to +125°C | |
| Package Type | 24-Lead SOIC (Wide) | |
| Wiper Resistance | 50 Ω to 200 Ω | |
| Resistance Tempco | 500 ppm/°C |
Key Features
- Quad-channel, 256-position digitally controlled variable resistor.
- Available in 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ resistance values.
- Power shutdown feature with less than 5 μA current draw.
- 3-Wire SPI-Compatible serial data input.
- 10 MHz update data loading rate.
- Single-supply operation from 2.7 V to 5.5 V.
- Unique switching circuit to minimize high glitch inherent in traditional switched resistor designs.
- Operating temperature range from −40°C to +125°C.
Applications
- Mechanical potentiometer replacement.
- Programmable filters, delays, and time constants.
- Volume control and panning in audio systems.
- Line impedance matching.
- Power supply adjustment.
- Qualified for automotive applications.
Q & A
- What is the AD8403ARZ1-REEL used for?
The AD8403ARZ1-REEL is used as a digitally controlled variable resistor, replacing traditional mechanical potentiometers in various applications.
- How many channels does the AD8403ARZ1-REEL have?
The AD8403ARZ1-REEL has four independent channels.
- What are the available resistance values for the AD8403ARZ1-REEL?
The available resistance values are 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the power shutdown current of the AD8403ARZ1-REEL?
The power shutdown current is less than 5 μA.
- What type of serial interface does the AD8403ARZ1-REEL use?
The AD8403ARZ1-REEL uses a 3-Wire SPI-Compatible serial interface.
- What is the update data loading rate of the AD8403ARZ1-REEL?
The update data loading rate is 10 MHz.
- What is the supply voltage range for the AD8403ARZ1-REEL?
The supply voltage range is from 2.7 V to 5.5 V.
- What is the operating temperature range of the AD8403ARZ1-REEL?
The operating temperature range is from −40°C to +125°C.
- What package type is the AD8403ARZ1-REEL available in?
The AD8403ARZ1-REEL is available in a 24-Lead SOIC (Wide) package.
- What are some common applications of the AD8403ARZ1-REEL?
Common applications include mechanical potentiometer replacement, programmable filters, volume control, line impedance matching, and power supply adjustment.
