Analog Devices Inc. ADM1813-10ART-REEL

Overview

ADM1813-10ART-REEL from Analog Devices is a 3-pin SOT-23 open-drain microprocessor reset circuit with internal pull-up resistor, 4.35 V typical reset threshold, 150 ms reset timeout, and push-button reset capability. It monitors 5 V power supplies in embedded controllers and ensures safe system initialization after power-on.

For engineers reviewing the ADM1813-10ART-REEL datasheet, ADM1813-10ART-REEL pinout, ADM1813-10ART-REEL application, or ADM1813-10ART-REEL equivalent, key selection criteria include trip point tolerance (±0.14 V), low quiescent current (≤16 µA at 5.5 V), open-drain output with 5.5 kΩ internal pull-up, push-button timing compliance (1 µs detect, 150 ms hold), and −40°C to +105°C industrial temperature operation.

Technical Context

The ADM1813-10ART-REEL implements a precision voltage comparator with hysteresis and a fixed 150 ms power-up reset delay timer. Its internal reference achieves ±1.5% trip point accuracy over temperature, and the open-drain RST output supports bidirectional manual reset via external push-button to ground.

This device operates across 1.2 V to 5.5 V supply range, draws ≤10 µA at 3.6 V, and features guaranteed reset assertion during VCC fall below 4.25 V (min) and release only after VCC exceeds 4.49 V (max). The internal 5.5 kΩ pull-up enables direct interface to CMOS inputs without external components.

Key Specifications

Pinout & Package

ADM1813-10ART-REEL is housed in a 3-lead SOT-23 (RT-3) package, 2.90 mm × 1.30 mm × 1.02 mm, JEDEC TO-236-AB compliant, with gull-wing leads and 0.95 mm lead pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage supervisor applications.

Compared with MAX6326-L43D2T+T and TPS3808G12DBVR, ADM1813-10ART-REEL uniquely integrates push-button reset timing and internal pull-up in SOT-23-3, reducing component count and board area while maintaining industrial temperature rating and tight trip point tolerance.

Availability

ADM1813-10ART-REEL is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body electronics, and medical infusion pumps requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.

Supply support for ADM1813-10ART-REEL 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

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.

The ADM181x series was designed specifically for cost-sensitive, space-constrained microprocessor reset supervision in harsh-environment applications-emphasizing precision trip points, guaranteed timing, and minimal external component count.

FAQ

What is the exact reset threshold voltage for ADM1813-10ART-REEL?

The ADM1813-10ART-REEL has a nominal reset threshold of 4.35 V, with guaranteed minimum and maximum values of 4.25 V and 4.49 V respectively across −40°C to +105°C. This 4.35 V trip point is optimized for reliable monitoring of standard 5 V power rails, ensuring reset assertion before microprocessor operational instability occurs.

Does ADM1813-10ART-REEL require an external pull-up resistor on the RST pin?

No, ADM1813-10ART-REEL includes an internal 5.5 kΩ pull-up resistor on the RST pin, eliminating the need for external components. This feature simplifies design, reduces BOM count, and ensures consistent rise time and noise immunity-critical for reliable reset signaling in electrically noisy industrial environments.

Can ADM1813-10ART-REEL be used with a manual push-button reset?

Yes, ADM1813-10ART-REEL explicitly supports manual reset via an external push-button connected between RST and GND. It detects button presses ≥1 µs and holds RST low for 150 ms after release-providing hardware-debounced, glitch-immune reset initiation without additional logic or timers.

What package type and dimensions does ADM1813-10ART-REEL use?

ADM1813-10ART-REEL uses the 3-lead SOT-23 (RT-3) package per JEDEC TO-236-AB, measuring 2.90 mm × 1.30 mm × 1.02 mm with 0.95 mm lead pitch. Its compact size and gull-wing leads enable high-density placement in space-constrained applications such as automotive ECUs and portable medical devices.

What is the supply current consumption of ADM1813-10ART-REEL at 3.6 V?

At 3.6 V supply and VCC > VTH (reset not asserted), ADM1813-10ART-REEL consumes 4 µA minimum and 10 µA typical supply current. This ultra-low quiescent current enables extended battery life in always-on monitoring applications, including remote sensors and backup power supervisors.