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AD558JN

AD558JN Description

The AD558JN from Analog Devices Inc. is an 8-bit digital-to-analog converter (DAC) from the DACPORT® series, designed for precision voltage output applications. Housed in a 16-pin DIP package, this through-hole-mount IC integrates a complete DAC with an internal reference and output amplifier, simplifying system design. It operates over a 4.5V to 16.5V supply range (both analog and digital) and delivers a fast 3µs settling time, making it suitable for dynamic control systems. The parallel data interface ensures straightforward integration with microprocessors or logic circuits. Although marked as obsolete, the AD558JN remains a reliable choice for legacy systems due to its robust performance and ease of use.

AD558JN Features

• 8-bit resolution with voltage output (0V to 2.56V or 0V to 10V ranges, jumper-selectable).
• Internal reference eliminates the need for external components, reducing board space and cost.
• Single-supply operation (4.5V–16.5V) for flexibility in power-sensitive designs.
• Fast settling time (3µs) enables high-speed signal generation and control loops.
• Parallel interface for direct connection to microcontrollers or digital logic.
• Wide operating temperature range (0°C to 70°C) for industrial and commercial environments.
• Moisture Sensitivity Level (MSL) 1, ensuring reliability in non-harsh storage conditions.

AD558JN Applications

The AD558JN excels in applications requiring low-complexity, precision analog output:

• Legacy industrial control systems (PLC analog outputs, motor control).
• Test and measurement equipment (programmable voltage sources, calibration).
• Embedded systems where minimal external components are desired.
• Educational and prototyping due to its straightforward parallel interface.
• Audio signal processing (low-resolution waveform generation).

Conclusion of AD558JN

The AD558JN is a versatile, 8-bit voltage-output DAC with integrated features that reduce design overhead. Its fast settling time, wide supply range, and internal reference make it ideal for cost-sensitive or space-constrained applications. While obsolete, its reliability and simplicity ensure continued use in legacy systems, industrial controls, and prototyping. Engineers seeking a no-frills DAC with proven performance will find the AD558JN a pragmatic solution.