DS1023S-500+

Overview

The DS1023S-500+T&R is an 8-bit programmable timing element manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single 5V supply with a voltage range of 4.75V to 5.25V and functions within an operating temperature range of 0°C to +70°C. The device features a delay step size of 5ns, providing a maximum delay time of 1275ns. It supports both parallel and serial programming modes and is housed in a 16-pin SOIC package.

Feature Summary

• Configurable as a delay line, pulse width modulator, or free-running oscillator
• Includes an on-chip reference delay to compensate for inherent step zero delay
• Supports cascading multiple devices via daisy-chain serial programming

Applications

• Clock phase control applications requiring delays up to a full period or more
• Pulse width modulation triggered by input waveform rising edges
• Free-running oscillator generation when output is connected to input

Procurement Notes

Verify the specific suffix (+T&R) indicates tape and reel packaging upon ordering. Confirm RoHS compliance status through official documentation. Ensure the component matches the 16-pin SOIC physical dimensions required for the target PCB layout before finalizing procurement.

Selection Notes

Select this model when a 5ns resolution is sufficient for the application requirements. Consider alternative variants from the DS1023 family if finer step sizes (e.g., 0.25ns or 0.5ns) are needed. Verify that the maximum delay requirement does not exceed 1275ns for standard operation.

Part Context

This component belongs to the DS1023 series of 8-bit programmable timing elements. It shares functional similarities with the DS1020 and DS1021 but includes architectural revisions allowing clock signals to be delayed by a full period or more. The series offers various step sizes to accommodate different timing precision needs.

Replacement Considerations

Direct replacements include other variants within the DS1023 family such as DS1023S-25, DS1023S-50, DS1023S-100, and DS1023S-200, provided the delay step size and maximum delay specifications align with the design requirements.