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AD7859AP-REEL
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Product Detailed Parameters
- Description：IC ADC 12BIT 8CH LP 44-PLCC
- Series：*
- Mfr：Analog Devices Inc.
- Package：Bulk
- Number of Bits：12
- Sampling Rate (Per Second)：-
- Number of Inputs：-
- Input Type：-
- Data Interface：-
- Configuration：-
- Ratio - S/H:ADC：-
- Number of A/D Converters：-
- Architecture：-
- Reference Type：-
- Voltage - Supply, Analog：-
- Voltage - Supply, Digital：-
- Features：-
- Operating Temperature：-
- Package / Case：44-LCC (J-Lead)
- Supplier Device Package：44-PLCC (16.59x16.59)
- Mounting Type：Surface Mount
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Overview
The AD7859AP-REEL is an 8-channel, 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single 3 V to 5.5 V power supply and supports throughput rates up to 200 kSPS. The device features a flexible parallel interface compatible with 16-bit or 8-bit data widths. Key specifications include a maximum conversion time of 4.5 µs, integral nonlinearity of ±1 LSB, and typical normal mode power dissipation of 15 mW at 3 V. It incorporates self-calibration and system calibration options to maintain accuracy over temperature variations.
Feature Summary
- Integrated self-calibration and system calibration mechanisms ensure long-term accuracy and stability across varying temperatures.
- Flexible parallel I/O interface supports both 16-bit word and 8-bit byte data transfer modes for versatile microcontroller integration.
- Multiple power-down management options allow optimization of power consumption based on specific application throughput requirements.
Applications
- Battery-powered portable systems such as personal digital assistants and mobile communications devices
- Medical instrumentation requiring precise signal acquisition
- Instrumentation and control systems in industrial environments
- High-speed modem applications
Procurement Notes
Verify the component revision and package type against the original datasheet specifications before procurement. Confirm that the reel packaging matches the required quantity for production needs. Ensure compatibility with existing board layouts regarding the 44-pin PQFP footprint. Check for any end-of-life notices or obsolescence warnings associated with this specific part number variant.
Selection Notes
Select the AD7859AP-REEL when high-speed multi-channel sampling is required alongside low power consumption. Consider the AD7859L variant if lower throughput is acceptable but reduced power dissipation is critical. Evaluate the need for internal calibration features versus external reference precision. Ensure the host system can support the parallel interface timing requirements and voltage levels specified in the electrical characteristics.
Part Context
This component belongs to the AD7859 family of high-speed, low-power ADCs from Analog Devices. The 'AP' suffix indicates a plastic lead chip carrier (PLCC) package, while '-REEL' denotes tape and reel packaging for automated assembly. The AD7859 series is designed for applications balancing speed, resolution, and power efficiency in single-supply environments.
Replacement Considerations
Direct replacements within the same family include the AD7859ASZ or AD7859BSZ for different linearity and package options. For lower power requirements, the AD7859LASZ is suitable. Verify pinout compatibility and software register configurations when substituting these variants.
