Features and Benefits
- Replaces Potentiometers In New Designs
- 10K, 50K & 100K Ω End-to-End Terminal Resistances
- +2.7 to +5.5 V Single-Supply
- ±3 V Dual Supply
- 3-Wire SPI Compatible Serial Data Input and Output
- Specified for Operation: -40°C to 125°C
The AD5207 provides a dual channel, 256 position, digitally controlled variable resistor (VR) device. These devices perform the same electronic adjustment function as a potentiometer or variable resistor. Each channel of the AD5207 contains a fixed resistor with a wiper contact that taps the fixed resistor value at a point determined by a digital code loaded into the SPI compatible serial-input register. The resistance between the wiper and either end point of the fixed resistor varies linearly with respect to the digital code transferred into the VR latch. The variable resistor offers a completely programmable value of resistance, between the A terminal and the wiper or the B terminal and the wiper. The fixed A to B terminal resistance of 10K, 50K or 100K ohms has a ±1% channel-to-channel matching tolerance with a nominal temperature coefficient of 500 ppm/°C. A unique switching circuit minimizes the high glitch inherent in traditional switched resistor designs and avoids any make-before-break or break-before-make operation. The AD5207 is available in 1.1 mm thin TSSOP-14 package, which is suitable for PCMCIA applications.
- Mechanical Potentiometer Replacement
- Stereo Channel Audio Level Control
- Instrumentation: Gain, Offset Adjustment
- Programmable Voltage-to-Current Conversion
- Programmable Filters, Delays, Time Constants
- Line Impedance Matching
- Automotive Electronics Adjustment
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Software & Systems Requirements
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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