Analog Devices Inc. ADM1815-10ARTZ-RL

Overview

ADM1815-10ARTZ-RL from Analog Devices is an active-low push-pull microprocessor reset circuit designed to monitor 3.3 V supply rails. It features a 2.88 V (typical) reset threshold, 150 ms reset timeout, and operates across −40°C to +105°C. Used in embedded controllers and industrial microprocessor systems for safe power-on initialization.

For engineers reviewing the ADM1815-10ARTZ-RL datasheet, ADM1815-10ARTZ-RL pinout, ADM1815-10ARTZ-RL application, or ADM1815-10ARTZ-RL equivalent, this page delivers verified specifications, package mapping, functional role in power sequencing, and validated alternative options for voltage supervisor selection.

Technical Context

The ADM1815-10ARTZ-RL implements a precision bandgap reference and comparator with built-in 150 ms delay timer to ensure stable power-up before releasing reset. Its active-low push-pull output drives microprocessor RESET inputs directly without external pull-up components.

It belongs to the ADM181x family optimized for low-quiescent-current (≤16 µA at 5.5 V) monitoring of 2.5 V–5 V supplies. The device uses internal hysteresis and temperature-compensated threshold detection to prevent false resets during voltage transients.

Key Specifications

Pinout & Package

ADM1815-10ARTZ-RL is housed in a 3-lead SOT-23 (RT-3) package with gull-wing leads, compliant to JEDEC TO-236-AB. Pin 1 is RST (active-low reset output), Pin 2 is VCC (monitored supply input), and Pin 3 is GND (0 V reference).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX809SEUR+T and TPS3808G18DBVR, ADM1815-10ARTZ-RL offers direct push-pull drive, precise 2.88 V trip matching 3.3 V rails, and minimal component count-making it optimal for cost- and space-sensitive industrial microcontroller reset applications.

Availability

ADM1815-10ARTZ-RL is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, medical handheld diagnostics, and smart energy meters requiring stable component supply and RoHS-compliant sourcing.

Supply support for ADM1815-10ARTZ-RL 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The ADM181x series was engineered specifically for robust, low-cost microprocessor reset supervision in industrial and automotive environments-emphasizing precision threshold accuracy, guaranteed timing, and minimal external components.

FAQ

What is the exact reset threshold voltage of ADM1815-10ARTZ-RL?

The ADM1815-10ARTZ-RL has a nominal reset threshold of 2.88 V (typical), with a guaranteed range of 2.80 V (min) to 2.97 V (max) over −40°C to +105°C. This value is factory-trimmed and specified in Table 1 of the Rev. F datasheet, making ADM1815-10ARTZ-RL suitable for monitoring standard 3.3 V supplies with appropriate undervoltage margin.

Does ADM1815-10ARTZ-RL require an external pull-up resistor?

No. ADM1815-10ARTZ-RL features an active-low push-pull output stage, enabling direct connection to microprocessor RESET inputs without any external components. Unlike open-drain supervisors such as ADM1811 or MAX809, ADM1815-10ARTZ-RL internally drives both high and low states-eliminating the need for a pull-up resistor and simplifying layout.

What package type does ADM1815-10ARTZ-RL use?

ADM1815-10ARTZ-RL is packaged in a 3-lead SOT-23 (RT-3) outline per JEDEC TO-236-AB, with dimensions 2.90 mm × 1.30 mm × 1.02 mm. The "Z" suffix confirms RoHS compliance, and the "RL" denotes tape-and-reel packaging (3,000 units per reel), verified in the Ordering Guide on page 9 of the Rev. F datasheet.

Can ADM1815-10ARTZ-RL be used for 5 V supply monitoring?

No. ADM1815-10ARTZ-RL is configured for 2.88 V threshold and is intended for 3.3 V supply supervision. For 5 V monitoring, Analog Devices specifies the ADM1810 or ADM1812 families (e.g., ADM1810-10ARTZ-RL with 4.35 V threshold). Using ADM1815-10ARTZ-RL on 5 V would result in immediate, permanent reset assertion due to overvoltage.

What is the reset timeout duration of ADM1815-10ARTZ-RL?

The ADM1815-10ARTZ-RL provides a fixed 150 ms (typical) reset timeout-defined as the delay between VCC rising above the threshold and RST transitioning high. The datasheet specifies a range of 100 ms (min) to 250 ms (max) across temperature and voltage, ensuring reliable power-rail stabilization before system initialization begins.