Overview
The AD8400AR10-REEL, produced by Analog Devices Inc., is a single-channel, 256-position digitally controlled variable resistor (VR) device. This component performs the same electronic adjustment function as a mechanical potentiometer or variable resistor. It is housed in a compact 8-lead SOIC package, making it suitable for space-constrained applications. The AD8400 series is designed to offer high precision and reliability, with features such as power shutdown and SPI-compatible serial data input, making it versatile for various electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 1 | |
| Number of Positions | 256 | |
| Resistor Values | 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ | |
| Temperature Coefficient | 500 ppm/°C | |
| Power Shutdown Current | < 5 μA | |
| Serial Interface | 3-wire, SPI-compatible | |
| Data Loading Rate | 10 MHz | |
| Supply Voltage | 2.7 V to 5.5 V | |
| Operating Temperature | −40°C to +125°C | |
| Package Type | 8-Lead SOIC |
Key Features
- Single-channel, 256-position digitally controlled variable resistor.
- Replaces mechanical potentiometers with high precision and reliability.
- Available in various resistance values: 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
- Power shutdown feature with less than 5 μA current draw.
- 3-wire, SPI-compatible serial data input for easy integration.
- High update data loading rate of 10 MHz.
- Single-supply operation from 2.7 V to 5.5 V.
- Midscale preset and reset functionality.
- Compact 8-lead SOIC package for space-saving designs.
Applications
- Mechanical potentiometer replacement.
- Programmable filters, delays, and time constants.
- Volume control and panning in audio systems.
- Line impedance matching.
- Power supply adjustment.
Q & A
- What is the AD8400AR10-REEL used for?
The AD8400AR10-REEL is used as a digitally controlled variable resistor, replacing mechanical potentiometers in various electronic applications.
- What are the available resistance values for the AD8400AR10-REEL?
The available resistance values are 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the power shutdown current of the AD8400AR10-REEL?
The power shutdown current is less than 5 μA.
- What type of serial interface does the AD8400AR10-REEL use?
The AD8400AR10-REEL uses a 3-wire, SPI-compatible serial interface.
- What is the operating temperature range of the AD8400AR10-REEL?
The operating temperature range is −40°C to +125°C.
- What is the package type of the AD8400AR10-REEL?
The package type is an 8-Lead SOIC.
- Can the AD8400AR10-REEL be used in automotive applications?
Yes, the AD8400AR10-REEL is qualified for automotive applications.
- How many positions does the AD8400AR10-REEL have?
The AD8400AR10-REEL has 256 positions.
- What is the supply voltage range for the AD8400AR10-REEL?
The supply voltage range is from 2.7 V to 5.5 V.
- Does the AD8400AR10-REEL support daisy-chaining?
Yes, the AD8400AR10-REEL supports daisy-chaining through its serial data output pin.
