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AD7839AS-REEL
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Product Detailed Parameters
- Description：IC DAC 13BIT OCTAL V-OUT 44-MQFP
- Series：*
- Mfr：Analog Devices Inc.
- Package：Bulk
- Number of Bits：-
- Number of D/A Converters：-
- Settling Time：-
- Output Type：-
- Differential Output：-
- Data Interface：-
- Reference Type：-
- Voltage - Supply, Analog：-
- Voltage - Supply, Digital：-
- INL/DNL (LSB)：-
- Architecture：-
- Operating Temperature：-
- Package / Case：44-QFP
- Supplier Device Package：44-MQFP (10x10)
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The AD7839AS-REEL is an octal 13-bit digital-to-analog converter (DAC) in a 44-lead MQFP package. It integrates eight independent voltage-output DACs with a gain-of-two amplifier per channel. The device accepts 13-bit parallel data via DB0–DB12 and uses address pins A0–A2 for channel selection. Outputs update simultaneously when the LDAC pin is asserted low. It supports bipolar operation with ±10 V full-scale range using ±5 V references, or unipolar configurations. Key specifications include a maximum relative accuracy of –2 LSB, settling time of 40 µs max, and power supplies of +5 V (VCC), +15 V (VDD), and –15 V (VSS).
Feature Summary
- Eight 13-bit DACs integrated on a single monolithic chip.
- Parallel input interface with individual channel addressing.
- Simultaneous output update capability via LDAC control.
- Offset adjustment for each DAC pair via DUTGND inputs.
Applications
- Automatic Test Equipment (ATE)
- Process Control Systems
- General Purpose Instrumentation
Procurement Notes
Verify that the 'REEL' suffix indicates tape-and-reel packaging rather than standard tube packaging. Confirm the 'AS' designation corresponds to the industrial temperature range of –40°C to +85°C. Ensure the source document explicitly lists this specific part number variant to avoid confusion with non-reel versions.
Selection Notes
Select this component for applications requiring multiple synchronized analog outputs from a single package. The parallel interface requires sufficient microcontroller GPIO lines. Verify that the system can provide the required three-supply configuration (+5 V, +15 V, –15 V) and that the load impedance meets the minimum 5 kΩ resistive load requirement.
Part Context
The AD7839 series provides high-density DAC solutions for multi-channel systems. The AS variant specifies the plastic quad flatpack (MQFP) package option. This model belongs to Analog Devices' line of precision data converters designed for industrial and instrumentation environments requiring stable voltage outputs.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other octal DACs only if interface protocols and pinouts are verified compatible.
