Analog Devices Inc./Maxim Integrated DS1023S-200+T&R

Overview

DS1023S-200+T&R from Maxim Integrated (formerly Dallas Semiconductor) is an 8-bit programmable silicon delay line configured for 2 ns step resolution, 510 ns maximum absolute delay, and dual-mode output (delayed/non-inverted or PWM/inverted) via MS pin control. It operates from a single 5 V supply in SOIC-16 package and supports clock phase adjustment over full 0–360° range using on-chip reference delay compensation - used in high-precision timing alignment for test instrumentation and digital signal synchronization.

For engineers reviewing the DS1023S-200+T&R datasheet, DS1023S-200+T&R pinout, DS1023S-200+T&R application, or DS1023S-200+T&R equivalent, key selection criteria include guaranteed monotonic delay response, serial/parallel programming flexibility, step-zero delay compensation via REF output, and compatibility with 25 MHz input clocks and ≥20 ns minimum pulse width.

Technical Context

The DS1023S-200+T&R implements a digitally programmable analog delay path using switched-capacitor or tapped-delay-line architecture (exact topology not disclosed), enabling precise sub-nanosecond timing control. Its internal reference delay (18–22 ns) offsets inherent step-zero delay (−2 to 0 ns), allowing true zero-relative delay calibration against REF output.

Mode Select (MS) pin configures dual functional outputs: when MS = 0, OUT delivers non-inverted delayed signal and REF provides fixed reference; when MS = 1, OUT becomes inverted delayed output and REF switches to pulse-width modulated (PWM) output triggered by IN rising edge, with programmable pulse width up to 510 ns.

Key Specifications

Pinout & Package

DS1023S-200+T&R is housed in a 300-mil 16-pin SOIC package (JEDEC MS-012AC), surface-mount compatible with standard reflow profiles and automated assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable delay line applications.

Compared with DS1023S-200+T&R, the DIP variant offers identical timing performance but limits board density and reflow compatibility, while the MAX9622ESE+ sacrifices programmability and reference calibration for lower voltage operation and fixed delay simplicity - making DS1023S-200+T&R uniquely suited for adaptive, calibration-critical timing systems.

Availability

DS1023S-200+T&R is available at Aetrix Electronics and suitable for automated test equipment, digital signal integrity analysis, programmable clock phase shifting, and pulse width modulation generation requiring stable component supply across long-lifecycle industrial programs.

Supply support for DS1023S-200+T&R includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated, now part of Analog Devices, designs precision analog, mixed-signal, and timing solutions for industrial, communications, and computing applications.

The DS1023 product line was developed as a family of programmable silicon delay lines targeting high-accuracy, field-adjustable timing in test instrumentation, digital synchronization, and calibration-critical embedded systems - emphasizing monotonicity, reference-compensated delay, and dual-mode output flexibility.

FAQ

What is the maximum input frequency supported by DS1023S-200+T&R?

The DS1023S-200+T&R supports a maximum input frequency of 25 MHz, verified under standard operating conditions (0°C to 70°C, VCC = 5 V ±5%). This limit ensures reliable capture of input transitions and accurate delay programming across the full 0–510 ns range. Input signals exceeding 25 MHz may violate minimum pulse width (20 ns) or period requirements, leading to degraded timing accuracy or failure to register programmed values in DS1023S-200+T&R.

How does the REF output function in DS1023S-200+T&R?

The REF output in DS1023S-200+T&R provides a fixed 18–22 ns delay referenced to the IN rising edge, trimmed to exceed the step-zero delay (−2 to 0 ns) by ~1.5 ns. When MS = 0, REF serves as a stable reference for calibrating OUT's programmable delay to achieve true zero-relative phase shift. This eliminates system-level offset errors caused by process variation - a core capability distinguishing DS1023S-200+T&R from fixed-delay alternatives.

Can DS1023S-200+T&R generate PWM signals?

Yes, DS1023S-200+T&R generates PWM signals when configured with MS = 1. In this mode, the REF/PWM pin outputs a pulse triggered by the IN rising edge, with width determined by the programmed 8-bit value (5 ns minimum, up to 510 ns). The PWM duty cycle is fully programmable and independent of input duty cycle - enabling precise analog control in LED dimming or power regulation applications using DS1023S-200+T&R as a digital timing engine.

What is the purpose of the P/S pin on DS1023S-200+T&R?

The P/S (Parallel/Serial) pin on DS1023S-200+T&R selects the programming interface: low enables parallel mode (P0–P7 set delay code directly), high enables serial mode (8-bit value shifted in via D/P2, CLK/P1, Q/P0). This dual-mode flexibility allows DS1023S-200+T&R to integrate into both microcontroller-bus systems (parallel) and resource-constrained controllers (serial), including daisy-chained configurations for multi-device timing calibration.

Is DS1023S-200+T&R capable of free-running oscillation?

Yes, DS1023S-200+T&R can operate as a free-running oscillator when MS = 1 and the OUT pin is externally connected to the IN pin. In this configuration, the device produces a square wave whose period equals twice the programmed delay value (e.g., 100 ns delay → 200 ns period → 5 MHz output). Oscillation frequency ranges from 0.98 MHz to 22 MHz depending on the DS1023 variant - confirmed in DS1023S-200+T&R's oscillator specification table.