AD8402 PDF

Replaces 1, 2, or 4 potentiometers. Qualified for automotive applications. Mechanical potentiometer replacement. Programmable filters, delays, time constants. Volume control, panning.

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These devices perform the same electronic adjustment function as a potentiometer or variable resistor. The AD contains a single variable resistor in the compact SO-8 package. The AD contains two independent variable resistors in saving SO surface mount package. Each part 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 controlling serial input register.

The resistance between the wiper and either endpoint of the fixed resistor varies linearly with respect to the digital code transferred into the VR latch. Each variable resistor offers a completely programmable value of resistance, between the A terminal and the wiper or the B terminal and the wiper. A unique switching circuit minimizes the high glitch inherent in traditional switched resistor designs avoiding any make-before-break or break-before-make operation.

Each VR has its own VR latch that holds its programmed resistance value. These VR latches are updated from an SPI compatible serial-to-parallel shift register that is loaded from a standard 3-wire serial-input digital interface.

Ten data bits make up the data word clocked into the serial input register. The data word is decoded where the first two bits determine the address of the VR latch to be loaded, the last eight bits are data. A serial data output pin at the opposite end of the serial register allows simple daisy-chaining in multiple VR applications without additional external decoding logic.

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. The AD supports a single-supply 2. Complete specifications for the AD part can be found in the AD data sheet. 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. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing. The package for this IC i.

An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board. For detailed drawings and chemical composition please consult our Package Site. Pin Count is the number of pins, balls, or pads on the device. This is the acceptable operating range of the device.

The various ranges specified are as follows:. Indicates the packing option of the model Tube, Reel, Tray, etc. This is the date Analog Devices, Inc.

Most orders ship within 48 hours of this date. Once an order has been placed, Analog Devices, Inc. It is important to note the scheduled dock date on the order entry screen. We do take orders for items that are not in stock, so delivery may be scheduled at a future date.

Also, please note the warehouse location for the product ordered. Transit times from these sites may vary. Sample availability may be better than production availability. Please enter samples into your cart to check sample availability. Due to environmental concerns, ADI offers many of our products in lead-free versions.

For more information about lead-free parts, please consult our Pb Lead free information page. The Purchase button will be displayed if model is available for purchase online at Analog Devices or one of our authorized distributors. Select the purchase button to display inventory availability and online purchase options. The Sample button will be displayed if a model is available for web samples. If a model is not available for web samples, look for notes on the product page that indicate how to request samples or Contact ADI.

Data Sheet. Data Sheet Rev. CN Rev. E JP Rev. User Guides. Device Drivers. Comparable Parts Click to see all in Parametric Search. Product Lifecycle Production At least one model within this product family is in production and available for purchase. Evaluation Kits 1. View Detailed Evaluation Kit Information.

Application Notes 4. User Guides 1. Frequently Asked Questions 1. Reference Materials. Technical Articles 1. Analog Dialogue 1. Webcast 2. Understanding and Applying Digital Potentiometers. Digital Potentiometers - Where and How to Use. Design Resources. AD Material Declaration. Quality And Reliability.

Symbols and Footprints. AD Discussions. Can we get 4 different frequencies analog outputs simultaneously from AD IC. All AD Discussions. Select a country. Check Inventory. Model Package Pins Temp. Price Rohs Orders from Analog Devices. Model The model number is a specific version of a generic that can be purchased or sampled. Status Status indicates the current lifecycle of the product. This can be one of 4 stages: Pre-Release: The model has not been released to general production, but samples may be available.

Production: The model is currently being produced, and generally available for purchase and sampling. Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time. Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available if they have a status that is not obsolete. Package Description The package for this IC i. Pin Count Pin Count is the number of pins, balls, or pads on the device.

Temperature Range This is the acceptable operating range of the device. Please consult the datasheet for more information.

Evaluation Boards Pricing displayed is based on 1-piece. Add to cart. Up to two boards can be purchased through Analog. To order more than two, please purchase through one of our listed distributors. Pricing displayed is based on 1-piece. International prices may vary due to local duties, taxes, fees and exchange rates.

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