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AD7896JR-REEL
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Product Detailed Parameters
- Description：IC ADC 12BIT SRL T/H HS 8-SOIC
- 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：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Mounting Type：Surface Mount
- Grade：-
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Overview
The AD7896JR-REEL is a 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It operates from a single 2.7 V to 5.5 V supply and features an on-chip track-and-hold amplifier, internal clock, and high-speed serial interface. The device accepts a unipolar analog input range of 0 V to VDD, utilizing the supply voltage as the reference. Key electrical parameters include a maximum conversion time of 8 µs in high sampling mode, a throughput rate of 100 kHz, and typical power dissipation of 9 mW. It is housed in an 8-lead SOIC package with a commercial operating temperature range of 0°C to +70°C.
Feature Summary
- Integrates a 12-bit SAR ADC, track-and-hold amplifier, and serial interface logic within an 8-lead package.
- Operates from a single 2.7 V to 5.5 V supply without requiring an external voltage reference.
- Features a proprietary automatic power-down mode that activates after conversion to minimize energy consumption.
- Provides a high-speed 2-wire serial interface for easy connection to microcontrollers and DSP processors.
Applications
- Battery-powered portable instrumentation systems
- Industrial process control data acquisition
- Portable medical devices
Procurement Notes
Verify the specific suffix 'REEL' indicates tape-and-reel packaging rather than tube packaging when sourcing components. Confirm the 'J' version designation corresponds to the required commercial temperature range of 0°C to +70°C for your application environment. Ensure compatibility with the 8-lead SOIC footprint during PCB layout review.
Selection Notes
Select this component for applications requiring a compact, low-power 12-bit ADC solution. Consider the 100 kHz throughput limit and 8 µs conversion time against system speed requirements. Evaluate the single-supply operation and lack of external reference needs as space-saving advantages over discrete solutions.
Part Context
The AD7896 belongs to a family of fast, 12-bit ADCs designed for space-constrained environments. The JR variant specifically denotes the commercial temperature grade and SOIC package style. This part consolidates functions typically requiring multiple chips into a single small outline integrated circuit.
Replacement Considerations
Direct substitutes include other AD7896 variants such as AD7896ARZ or AD7896ANZ, which share identical pinouts and functional specifications but differ in temperature ranges or packaging styles.
