Overview
The AD5263BRU200-REEL7, produced by Analog Devices Inc., is a quad-channel, 256-position digital potentiometer. This device is the industry's first to offer a selectable digital interface, allowing it to be used with either SPI or I2C protocols. It provides electronic adjustment functions similar to mechanical potentiometers or variable resistors but with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| End-to-end Resistance | RAB | - | 20 kΩ, 50 kΩ, 200 kΩ | - | - | Ω |
| Number of Positions | - | - | 256 | - | - | - |
| Rheostat Mode Temperature Coefficient | ∆RWB/∆T | -40°C to +125°C | - | 30 ppm/°C | - | ppm/°C |
| Voltage Divider Temperature Coefficient | ∆RWA/∆T | -40°C to +125°C | - | 5 ppm/°C | - | ppm/°C |
| Operating Temperature Range | TA | - | -40°C | - | +125°C | °C |
| Single Supply Range | VDD | VSS = 0 V | 4.5 V | - | 15 V | V |
| Dual Supply Range | VDD/VSS | - | ±5 V | - | - | V |
| Logic Supply Range | VL | - | 2.7 V | - | 5.5 V | V |
| Wiper Resistance | RW | IW = 1 V/RAB | 60 Ω | 150 Ω | - | Ω |
Key Features
- Quad-channel, 256-position digital potentiometer with selectable SPI or I2C digital interface.
- End-to-end resistance options of 20 kΩ, 50 kΩ, or 200 kΩ.
- Power-on preset to midscale.
- Two package address decode pins (AD0 and AD1).
- Wide operating temperature range of –40°C to +125°C.
- Single supply range from 4.5 V to 15 V or dual supply range of ±5 V.
- Additional programmable logic outputs in I2C mode to drive digital loads, logic gates, and analog switches.
- Available in a narrow body, 24-lead TSSOP package.
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 AD5263BRU200-REEL7 used for?
The AD5263BRU200-REEL7 is used as a digital potentiometer, replacing mechanical potentiometers or variable resistors in various applications, including optical network adjustment, instrumentation, audio level control, and more. - What are the available end-to-end resistance options for the AD5263?
The AD5263 offers end-to-end resistance options of 20 kΩ, 50 kΩ, or 200 kΩ. - What digital interfaces does the AD5263 support?
The AD5263 supports both SPI and I2C digital interfaces, selectable via pin configuration. - What is the operating temperature range of the AD5263?
The AD5263 operates over a temperature range of –40°C to +125°C. - What are the power supply options for the AD5263?
The AD5263 can operate from a single supply of 4.5 V to 15 V or a dual supply of ±5 V. - What package type is the AD5263 available in?
The AD5263 is available in a narrow body, 24-lead TSSOP package. - Does the AD5263 have any additional programmable outputs?
Yes, in I2C mode, the AD5263 has additional programmable logic outputs to drive digital loads, logic gates, and analog switches. - What is the wiper resistance of the AD5263?
The wiper resistance of the AD5263 is typically 150 Ω, with a range of 60 Ω to 150 Ω. - How many positions does the AD5263 digital potentiometer have?
The AD5263 digital potentiometer has 256 positions. - What is the temperature coefficient of the AD5263 in rheostat mode?
The temperature coefficient in rheostat mode is 30 ppm/°C.
