Overview
The AD5263BRUZ200, produced by Analog Devices Inc., is a quad-channel, 256-position digital potentiometer. This device is the industry's first to offer such a configuration with a selectable digital interface, making it a versatile component for various electronic adjustments. It replaces mechanical potentiometers or variable resistors with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Fixed A-to-B Terminal Resistance | RAB | - | 20 kΩ, 50 kΩ, 200 kΩ | - | - | Ω |
| Temperature Coefficient | - | - | - | ±30 ppm/°C | - | ppm/°C |
| Operating Temperature Range | - | - | -40°C | - | +125°C | °C |
| Single Supply Range | VDD | VSS = 0 V | 4.5 V | - | 16.5 V | V |
| Dual Supply Range | VDD/SS | - | ±4.5 V | - | ±7.5 V | V |
| Logic Supply Voltage | VL | - | 2.7 V | 5.5 V | - | V |
| Bandwidth (3 dB) | BW | RAB = 20 kΩ/50 kΩ/200 kΩ | - | 300/150/35 kHz | - | kHz |
| Total Harmonic Distortion | THDW | VA = 1 V rms, VB = 0 V, f = 1 kHz, RAB = 20 kΩ | - | 0.05 % | - | % |
Key Features
- Selectable digital interface: 3-wire SPI or 2-wire I2C-compatible interface.
- Quad-channel configuration with 256-position digital potentiometer.
- Enhanced resolution and solid-state reliability compared to mechanical potentiometers.
- Superior low temperature coefficient performance: ±30 ppm/°C for rheostat mode and 5 ppm/°C for voltage divider mode.
- Wide operating temperature range: –40°C to +125°C.
- Programmable logic outputs to drive digital loads, logic gates, and analog switches.
- Low power consumption: Logic supply current of 25 µA to 60 µA at VL = +5 V.
Applications
- Mechanical potentiometer replacement.
- Optical network adjustment.
- Instrumentation: gain and offset adjustment.
- Stereo channel audio level control.
- Automotive electronics adjustment.
- Programmable power supply.
- Programmable filters, delays, and time constants.
- Line impedance matching.
- Low resolution DAC/trimmer replacement.
- Base station power amp biasing.
- Sensor calibration.
Q & A
- What is the AD5263BRUZ200 used for?
The AD5263BRUZ200 is used as a digital potentiometer, replacing mechanical potentiometers or variable resistors in various electronic applications.
- What are the available resistance values for the AD5263BRUZ200?
The fixed A-to-B terminal resistance values are 20 kΩ, 50 kΩ, and 200 kΩ.
- What is the temperature coefficient of the AD5263BRUZ200?
The temperature coefficient is ±30 ppm/°C for rheostat mode and 5 ppm/°C for voltage divider mode.
- What are the operating voltage ranges for the AD5263BRUZ200?
The device operates from a single supply of 4.5 V to 16.5 V or a dual supply of ±4.5 V to ±7.5 V.
- What digital interfaces are supported by the AD5263BRUZ200?
The device supports both 3-wire SPI and 2-wire I2C-compatible interfaces.
- What is the bandwidth of the AD5263BRUZ200?
The bandwidth is 300 kHz for 20 kΩ, 150 kHz for 50 kΩ, and 35 kHz for 200 kΩ configurations.
- What is the total harmonic distortion of the AD5263BRUZ200?
The total harmonic distortion is 0.05% at VA = 1 V rms, VB = 0 V, f = 1 kHz, and RAB = 20 kΩ.
- Can the AD5263BRUZ200 be used in automotive applications?
- How many channels does the AD5263BRUZ200 have?
The device has four channels, each with 256-position digital potentiometer capability.
- What is the power consumption of the AD5263BRUZ200?
The logic supply current is between 25 µA and 60 µA at VL = +5 V.
