Overview
The AD8400ARZ10, produced by Analog Devices Inc., is a single-channel digital potentiometer that offers a versatile and programmable solution for various electronic applications. This device is part of the AD8400 series, which includes single-, dual-, and quad-channel configurations. The AD8400ARZ10 specifically contains a single variable resistor in a compact SOIC-8 package, making it ideal for space-constrained designs.
This digital potentiometer functions similarly to a mechanical potentiometer or variable resistor but with the added benefit of digital control. It supports a single-supply operation from 2.7 V to 5.5 V, making it suitable for battery-powered applications and other low-voltage systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2.7 to 5.5 | V |
| Resistance Options | 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ | Ω |
| Number of Positions | 256 | - |
| Channel-to-Channel Matching Tolerance | ±1% | - |
| Temperature Coefficient | 500 ppm/°C | - |
| Power Shutdown Current | < 5 μA | μA |
| Serial Interface | 3-Wire SPI-Compatible | - |
| Update Data Loading Rate | 10 MHz | Hz |
| Operating Temperature Range | -40°C to +125°C | °C |
Key Features
- Single-channel digital potentiometer with 256 positions.
- Supports single-supply operation from 2.7 V to 5.5 V.
- Available in resistance values of 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
- ±1% channel-to-channel matching tolerance and a nominal temperature coefficient of 500 ppm/°C.
- Power shutdown feature with less than 5 μA current draw.
- 3-Wire SPI-compatible serial data input with up to 10 MHz update data loading rate.
- Midscale preset and reset functionality.
- Compact SOIC-8 package.
Applications
- Mechanical potentiometer replacement.
- Programmable filters, delays, and time constants.
- Volume control and panning in audio systems.
- Line impedance matching.
- Power supply adjustment.
- Battery-powered applications due to low power consumption.
Q & A
- What is the supply voltage range for the AD8400ARZ10?
The AD8400ARZ10 operates from a single supply of 2.7 V to 5.5 V.
- How many positions does the AD8400ARZ10 digital potentiometer have?
The AD8400ARZ10 has 256 positions.
- What are the available resistance values for the AD8400ARZ10?
The available resistance values are 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the channel-to-channel matching tolerance of the AD8400ARZ10?
The channel-to-channel matching tolerance is ±1%.
- How does the power shutdown feature work on the AD8400ARZ10?
The power shutdown feature forces the resistor to an end-to-end open-circuit condition on the A terminal and shorts the wiper to the B terminal, achieving a microwatt power shutdown state.
- What type of serial interface does the AD8400ARZ10 use?
The AD8400ARZ10 uses a 3-Wire SPI-compatible serial interface.
- What is the maximum update data loading rate for the AD8400ARZ10?
The maximum update data loading rate is 10 MHz.
- What is the operating temperature range for the AD8400ARZ10?
The operating temperature range is from -40°C to +125°C.
- What package type is the AD8400ARZ10 available in?
The AD8400ARZ10 is available in a compact SOIC-8 package.
- Can the AD8400ARZ10 be used in automotive applications?
Yes, the AD8400ARZ10 is qualified for automotive applications.
