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Product Detailed Parameters
- Description：IC DAC 12BIT W/BUFF LATCH 28CDIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- 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：-
- Supplier Device Package：-
- Mounting Type：-
- Grade：-
- Qualification：-
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Overview
The AD667SD/883B is a military-grade, 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. under the MIL-PRF-38534 specification. It integrates a high-stability buried Zener reference voltage source and dual-buffered input latches on a single chip. The device utilizes a laser-trimmed thin-film resistor network and bipolar current-steering switches to achieve a settling time of ≤3 µs at 0.01% accuracy with a maximum nonlinearity error of ±1/2 LSB. It operates on dual supplies ranging from ±12V to ±15V, consuming approximately 300 mW. Designed for harsh environments, it supports temperature ranges extending to +125°C and offers voltage outputs compatible with TTL and 5V CMOS logic levels.
Feature Summary
- MIL-PRF-38534 qualified hermetic ceramic package for aerospace and defense reliability
- Integrated buried Zener reference eliminates need for external components
- Dual-buffered architecture prevents glitching during microprocessor data updates
- Laser-trimmed thin-film network ensures monotonicity across wide temperature ranges
Applications
- Aerospace guidance and control systems
- Military radar signal processing
- High-reliability industrial instrumentation
Procurement Notes
This component is a specialized military lot part subject to strict quality assurance protocols. Verify that the supplier provides a Certificate of Compliance (CoC) and traceability to the original manufacturer's test data. Due to its legacy status and specific military qualification, availability may be limited to distributor surplus or managed inventory programs rather than standard production runs.
Selection Notes
Select this part only when MIL-PRF-38534 compliance and hermetic sealing are mandatory requirements. Ensure the system design accommodates the required ±12V to ±15V dual power supply rails. For new designs requiring similar performance without military packaging constraints, consider modern commercial alternatives such as the AD9744 family, which offer higher speeds and lower power consumption in plastic packages.
Part Context
The AD667 series represents a classic generation of monolithic DACs from Analog Devices, widely used in systems requiring precise analog output control before the advent of high-speed sigma-delta architectures. The 'SD/883B' suffix specifically denotes the hermetic ceramic flat package variant qualified to the US military standard MIL-PRF-38534, distinguishing it from commercial plastic DIP or PLCC versions.
Replacement Considerations
Direct pin-for-pin replacements for the military-qualified AD667SD/883B are not readily available in current production catalogs. Designers typically migrate to newer ADI DAC families like the AD97xx series, though this requires schematic redesign to accommodate different interface protocols and power supply configurations.
