DS1023S-25

Overview

The DS1023S-25 is an 8-bit programmable delay line IC manufactured by Analog Devices Inc./Maxim Integrated. It provides a total available delay of 63.75ns with a step size of 250ps and 256 taps. The device operates on a single 4.75V to 5.25V supply within a 0°C to 70°C temperature range. It features parallel or serial programming, configurable outputs for delay lines, pulse width modulation, or oscillators, and includes an on-chip reference delay. The component is housed in a 16-SOIC package.

Feature Summary

• Configurable as a delay line, pulse width modulator, or free-running oscillator
• Supports both parallel and serial programming modes
• Includes an on-chip reference delay to compensate for inherent step zero delay
• Capable of delaying clocks by a full period or more

Applications

• Clock phase control applications
• Pulse width modulation signal generation
• Free-running oscillator circuits
• Timing element configuration in digital systems

Procurement Notes

Verify the specific suffix (+T) indicates tape and reel packaging when sourcing. Confirm RoHS compliance status matches project requirements. Ensure the manufacturer designation aligns with current Analog Devices or Maxim Integrated branding. Validate that the 16-SOIC package dimensions match the PCB footprint design specifications before finalizing procurement orders.

Selection Notes

Select this model when a maximum delay of approximately 64ns is required. The 250ps step size offers high resolution for precise timing adjustments. Consider the DS1023S-50 or -100 if longer delay ranges are needed. Verify that the 5V supply voltage and SOIC package form factor fit the system constraints. Check if serial or parallel programming interfaces suit the control architecture.

Part Context

The DS1023 series serves as an 8-bit programmable timing element similar to the DS1020/DS1021 but with enhanced features. The 'S' suffix denotes the 300-mil SOIC package variant. This specific part belongs to the broader family of programmable delay lines designed for flexible timing control in electronic circuits.

Replacement Considerations

The DS1021S-25 is a related component offering 73.75ns total delay. However, it is marked as obsolete. Direct substitutes should be verified against the official datasheet for pin compatibility and electrical characteristics.