Overview
The AD5263BRU50, produced by Analog Devices Inc., is a quad-channel, 256-position digital potentiometer with a selectable digital interface. This device is designed to perform the same electronic adjustment functions as mechanical potentiometers or variable resistors, but with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance. Each channel of the AD5263 offers a completely programmable value of resistance between the A terminal and the wiper or between the B terminal and the wiper.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 4 | - |
| Number of Positions | 256 | - |
| End-to-End Resistance | 50 kΩ | Ω |
| Temperature Coefficient (Rheostat Mode) | 30 ppm/°C | ppm/°C |
| Temperature Coefficient (Voltage Divider Mode) | 5 ppm/°C | ppm/°C |
| Operating Temperature Range | -40°C to +125°C | °C |
| Supply Voltage Range | 4.5 V to 15 V, ±5 V | V |
| Interface | SPI, I²C | - |
| Package | 24-Lead TSSOP | - |
Key Features
- Selectable digital interface: SPI or I²C-compatible
- Power-on preset to midscale
- Two package address decode pins (AD0 and AD1)
- Programmable logic outputs in I²C mode to drive digital loads, logic gates, and analog switches
- Wide operating temperature range: -40°C to +125°C
- Single supply: 10 V to 15 V; dual supply: ±5 V
- Channel-to-channel matching tolerance: ±1%
Applications
- Mechanical potentiometer replacement
- Optical network adjustment
- Instrumentation: gain, offset adjustment
- Stereo channel audio level control
- Automotive electronics adjustment
- Programmable power supply
- Programmable filters, delays, time constants
- Line impedance matching
- Low resolution DAC/trimmer replacement
- Base station power amp biasing
- Sensor calibration
Q & A
- What is the AD5263BRU50 used for?
The AD5263BRU50 is used as a digital potentiometer to replace mechanical potentiometers or variable resistors in various applications, offering enhanced resolution and reliability.
- How many channels does the AD5263BRU50 have?
The AD5263BRU50 has four channels.
- What is the number of positions for each channel?
Each channel has 256 positions.
- What are the available end-to-end resistance values for the AD5263BRU50?
The available end-to-end resistance values are 20 kΩ, 50 kΩ, and 200 kΩ, with the AD5263BRU50 specifically being 50 kΩ.
- What are the temperature coefficients for the AD5263BRU50?
The temperature coefficient in rheostat mode is 30 ppm/°C, and in voltage divider mode, it is 5 ppm/°C.
- What is the operating temperature range of the AD5263BRU50?
The operating temperature range is -40°C to +125°C.
- What are the supply voltage options for the AD5263BRU50?
The device can operate from a single supply of 4.5 V to 15 V or a dual supply of ±5 V.
- What digital interfaces are supported by the AD5263BRU50?
The device supports both SPI and I²C-compatible interfaces.
- What is the package type for the AD5263BRU50?
The device is packaged in a 24-Lead TSSOP.
- What are some common applications of the AD5263BRU50?
Common applications include mechanical potentiometer replacement, optical network adjustment, instrumentation, audio level control, automotive electronics adjustment, and more.
- Does the AD5263BRU50 have programmable logic outputs?
