Overview
The AD5262BRUZ200, produced by Analog Devices Inc., is a dual-channel, 256-position, digitally controlled variable resistor (VR) device. This component is part of the AD5260/AD5262 series, designed to perform electronic adjustment functions similar to those of a potentiometer or variable resistor. Each channel of the AD5262 contains a fixed resistor with a wiper contact that can be programmed via an SPI-compatible serial-input register. This device is versatile and can operate with single-supply voltages from 5 V to 15 V or dual-supply voltages up to ±5.5 V, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 2 (independently programmable) | |
| Number of Positions | 256 | |
| Fixed Resistor Values | 20 kΩ, 50 kΩ, 200 kΩ | |
| Temperature Coefficient | 35 ppm/°C | |
| Supply Voltage Range | 5 V to 15 V (single-supply), ±5.5 V (dual-supply) | V |
| Logic Supply Voltage | 2.7 V to 5.5 V | V |
| Operating Temperature Range | −40°C to +85°C | °C |
| Package Type | 16-Lead TSSOP | |
| Differential Nonlinearity (DNL) | −1 ±1/4 +1 LSB | |
| Integral Nonlinearity (INL) | −1 ±1/2 +1 LSB |
Key Features
- SPI-compatible serial data input for easy digital control
- Power on midscale preset feature
- Optional reset pin to set wiper to midscale position
- Low temperature coefficient of 35 ppm/°C
- Support for daisy-chaining in multiple VR applications
- High resolution with 256 positions per channel
- Operates over an extended industrial temperature range of −40°C to +85°C
Applications
- Mechanical potentiometer replacement
- Instrumentation: gain and offset adjustment
- Stereo channel audio level control
- Programmable voltage-to-current conversion
- Programmable filters, delays, and time constants
- Line impedance matching
- Low resolution DAC replacement
Q & A
- What is the AD5262BRUZ200 used for?
The AD5262BRUZ200 is used as a digitally controlled variable resistor, replacing mechanical potentiometers and providing precise electronic adjustments in various applications.
- How many channels does the AD5262BRUZ200 have?
The AD5262BRUZ200 has two independently programmable channels.
- What are the available fixed resistor values for the AD5262BRUZ200?
The fixed resistor values available are 20 kΩ, 50 kΩ, and 200 kΩ.
- What is the temperature coefficient of the AD5262BRUZ200?
The temperature coefficient is 35 ppm/°C.
- What is the operating temperature range of the AD5262BRUZ200?
The operating temperature range is −40°C to +85°C.
- How does the AD5262BRUZ200 handle power-on settings?
The device has a power on midscale preset feature, ensuring the wiper is set to the midscale position upon power-up.
- Can the AD5262BRUZ200 be used in daisy-chain configurations?
- What is the logic supply voltage range for the AD5262BRUZ200?
The logic supply voltage range is 2.7 V to 5.5 V.
- What package type is the AD5262BRUZ200 available in?
The AD5262BRUZ200 is available in a 16-Lead TSSOP package.
- What are some common applications of the AD5262BRUZ200?
