New Content (1)
Features and Benefits
Product DetailsThe AD5821A is a single, 10-bit digital-to-analog converter (DAC) with output current sinking capability of 120 mA. It features an internal reference and operates from a single 2.7 V to 5.5 V supply. The DAC is controlled via a 2-wire, I2C®-compatible serial interface that operates at clock rates up to 400 kHz.
The AD5821A incorporates a power-on reset circuit that ensures the DAC output powers up to 0 V and remains there until a valid write takes place. It has a power-down feature that reduces the current consumption of the device to 1 μA maximum.
The AD5821A is designed for autofocus, image stabilization, and optical zoom applications in camera phones, digital still cameras, and camcorders.
The AD5821A is also suitable for many industrial applications, such as controlling temperature, light, and movement without derating over temperatures ranging from −30°C to +85°C.
The I2C 7-bit address for the AD5821A is 0xC.
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.
Evaluation Kits (1)
The EVAL-AD5821AKTZ Evaluation Kit is designed to allow the user to evaluate the performance of the AD5821A Auto Focus (AF) driver. This user guide describes how to download and use the AD5821A Evaluation Software which is available for Windows and allows the user to easily program the AD5821A and check the basic functionality of the part.
The EVAL-AD5821A Evaluation Kit contains the following boards:
- EVAL-AD5821A-DBZ: A board that includes the AD5821A device and Voice Coil Motor (VCM) loads. It also includes connectors for external VCM loads and a connector for external I2C
- EVAL-APOLLO-LD-MBZ: Contains several LDOs to generate the AD5821A supplies and other voltages necessary to the system, connectors for external supplies, level shifters, current sense amplifiers and an ADC to measure voltages and currents
- APOLLO-CORTEX-M3: Apollo controller board
- USB Standard Micro-B-cable that connects the boards to the computer
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
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. 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. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.