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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Supervisors

Analog Devices Inc. ADM1816-20ART-REEL

Name: ADM1816-20ART-REEL
Brand: Analog Devices Inc.
SKU: ADM1816-20ART-REEL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADM1816-20ART-REEL

Manufacturer:: Analog Devices Inc.

Category:: Supervisors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: ADM1816-20ART-REEL.pdf

Description:: IC MONITOR RESET 2.55V SOT23 TR

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Product details

Overview

ADM1816-20ART-REEL from Analog Devices is a low-cost, open-drain microprocessor reset circuit designed to monitor 2.5 V power supplies with a typical reset threshold of 2.55 V. It delivers a 150 ms reset timeout after power-up, sinks up to 8 mA, and operates across −40°C to +105°C. Used in embedded controllers and industrial instrumentation for safe system initialization.

For engineers reviewing the ADM1816-20ART-REEL datasheet, ADM1816-20ART-REEL pinout, ADM1816-20ART-REEL application, or ADM1816-20ART-REEL equivalent, this page provides verified specifications, package mapping, functional alternatives, and design-critical timing behavior - all confirmed for the exact SOT-23 packaged variant with 2.55 V trip point.

Technical Context

The ADM1816-20ART-REEL implements a precision voltage comparator with internal reference and fixed 150 ms reset delay timer. Its open-drain RST output requires an external pull-up and supports manual push-button reset initiation with sub-microsecond detection and guaranteed 150 ms hold time.

It belongs to the ADM181x family optimized for low quiescent current (≤16 μA at 5.5 V), wide temperature operation (−40°C to +105°C), and compatibility with 2.5 V, 3.0 V, and 3.3 V supply rails via selectable trip points - with ADM1816-20ART-REEL specifically calibrated for 2.55 V nominal threshold.

Key Specifications

Parameter	Value and Actual Design Meaning
Reset Threshold	2.47 V (min) to 2.64 V (max) - ensures reliable reset assertion during 2.5 V rail brownout.
Reset Timeout	100–250 ms - guarantees ≥150 ms typical delay for stable power-up sequencing before release.
Supply Range	1.2 V to 5.5 V - supports operation even when monitored VCC drops below 2.5 V post-failure.
Output Sink Current	8 mA @ V_OUT = 0.4 V - drives standard CMOS reset inputs without buffer.
Quiescent Current	9–16 μA @ V_CC = 5.5 V - enables battery-backed or ultra-low-power systems.
Operating Temp	−40°C to +105°C - qualified for industrial and automotive under-hood environments.
Push-Button Response	1 μs detect latency + 150 ms reset hold - enables robust manual recovery without debounce circuitry.

Pinout & Package

ADM1816-20ART-REEL is housed in a JEDEC-compliant 3-lead SOT-23 (RT-3) package with gull-wing leads, 1.3 mm pitch, and 2.9 mm × 1.3 mm footprint - suitable for high-density PCB layouts and reflow assembly.

Pin/Terminal	Circuit Role	Design Meaning
1 (RST)	Open-drain reset output	Active-low signal; requires external pull-up; asserts during V_CC < threshold and holds for 150 ms after recovery.
2 (V_CC)	Monitored supply input	Connects directly to 2.5 V rail; powers internal circuitry and defines trip point reference.
3 (GND)	Ground reference	0 V return for comparator, timer, and output stage; must be low-impedance for noise immunity.

Key Features

Feature	Design Value
Open-drain output	Enables wired-OR reset bus sharing across multiple supervisors or mixed-voltage domains.
Manual push-button support	Integrated 1 μs button-detect logic eliminates need for external RC debouncing or Schmitt triggers.
Fixed 150 ms reset timeout	Guarantees sufficient power stabilization time before processor release - no external capacitor required.
Low supply current	≤16 μA max enables use in always-on subsystems without compromising battery life.
Wide temperature range	−40°C to +105°C operation validated per AEC-Q100 stress profiles for industrial reliability.

Applications

Industrial PLC Controller	Automotive Body Control Module
Use Scenario: Monitors 2.5 V core supply powering MCU and CAN transceiver in programmable logic controller. IC Role / Device Role / Timing Role: Voltage supervisor ensuring deterministic reset during cold cranking or load dump events. Use Value: Prevents firmware corruption by enforcing 150 ms minimum reset hold time after 2.5 V rail recovery.	Use Scenario: Supervises 2.5 V I/O rail feeding door module microcontroller and LIN transceiver. IC Role / Device Role / Timing Role: Open-drain reset generator compatible with shared reset bus architecture. Use Value: Enables manual service reset via dashboard switch without adding discrete logic or timing components.
Medical Diagnostic Handheld	Smart Energy Meter
Use Scenario: Guards 2.5 V sensor interface supply in portable ultrasound device with battery backup. IC Role / Device Role / Timing Role: Low-current supervisor minimizing standby drain while guaranteeing clean boot on power restore. Use Value: 9–16 μA quiescent current extends battery runtime between calibrations without sacrificing reset integrity.	Use Scenario: Monitors 2.5 V RTC and metrology ASIC supply in ANSI C12.22-compliant meter. IC Role / Device Role / Timing Role: Temperature-stable reset source operating across −25°C to +70°C ambient. Use Value: ±1.5% threshold accuracy over full temp range prevents spurious resets during seasonal thermal cycling.

Industrial PLC Controller

Automotive Body Control Module

Use Scenario: Monitors 2.5 V core supply powering MCU and CAN transceiver in programmable logic controller.

IC Role / Device Role / Timing Role: Voltage supervisor ensuring deterministic reset during cold cranking or load dump events.

Use Value: Prevents firmware corruption by enforcing 150 ms minimum reset hold time after 2.5 V rail recovery.

Use Scenario: Supervises 2.5 V I/O rail feeding door module microcontroller and LIN transceiver.

IC Role / Device Role / Timing Role: Open-drain reset generator compatible with shared reset bus architecture.

Use Value: Enables manual service reset via dashboard switch without adding discrete logic or timing components.

Medical Diagnostic Handheld

Smart Energy Meter

Use Scenario: Guards 2.5 V sensor interface supply in portable ultrasound device with battery backup.

IC Role / Device Role / Timing Role: Low-current supervisor minimizing standby drain while guaranteeing clean boot on power restore.

Use Value: 9–16 μA quiescent current extends battery runtime between calibrations without sacrificing reset integrity.

Use Scenario: Monitors 2.5 V RTC and metrology ASIC supply in ANSI C12.22-compliant meter.

IC Role / Device Role / Timing Role: Temperature-stable reset source operating across −25°C to +70°C ambient.

Use Value: ±1.5% threshold accuracy over full temp range prevents spurious resets during seasonal thermal cycling.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX6326XR25-T	2.5 V reset threshold, 140 ms timeout, SOT-23-3, push-button capable	Lower max sink current (3.2 mA); no −40°C to +105°C rating - limited to commercial temp	Acceptable for cost-sensitive consumer designs where extended temperature is not required.
TPS3808G12DBVR	1.2 V to 6 V adjustable threshold, 200 ms timeout, SOT-23-6, no push-button support	Requires external resistor divider; higher quiescent current (12 μA typ); no manual reset function	Preferred when flexible trip-point tuning or tighter threshold tolerance (±0.5%) is needed over fixed 2.55 V.

Compared with MAX6326XR25-T and TPS3808G12DBVR, ADM1816-20ART-REEL uniquely combines guaranteed 150 ms reset hold, −40°C to +105°C qualification, open-drain output, and integrated push-button interface - all in a 3-pin SOT-23 footprint with ≤16 μA supply current.

Availability

ADM1816-20ART-REEL 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 with full temperature-grade assurance.

Supply support for ADM1816-20ART-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, headquartered in Norwood, MA.

The ADM181x product line was engineered for cost-sensitive, space-constrained microprocessor systems needing reliable, single-supply voltage monitoring - especially in industrial, automotive, and instrumentation applications demanding extended temperature operation.

FAQ

What is the exact reset threshold voltage for ADM1816-20ART-REEL?

The ADM1816-20ART-REEL has a guaranteed reset threshold range of 2.47 V (minimum) to 2.64 V (maximum), with 2.55 V typical. This specification applies strictly to the RT-3 (SOT-23) packaged part and is validated across −40°C to +105°C operating temperature.

Does ADM1816-20ART-REEL support manual reset via push-button?

Yes, ADM1816-20ART-REEL supports manual reset: connecting a push-button between RST and GND pulls the open-drain output low; release triggers a precise 150 ms reset pulse. The device detects button press in ≤1 μs - no external components required.

What package type and footprint does ADM1816-20ART-REEL use?

ADM1816-20ART-REEL uses the JEDEC-standard 3-lead SOT-23 (RT-3) package: 2.9 mm × 1.3 mm body, 1.3 mm lead pitch, gull-wing leads. Pin 1 = RST, Pin 2 = V_CC, Pin 3 = GND - identical to Figure 2 in the ADM181x datasheet Rev. D.

Can ADM1816-20ART-REEL monitor voltages other than 2.5 V?

No - ADM1816-20ART-REEL is factory-trimmed for 2.55 V nominal threshold and is not adjustable. For 3.06 V monitoring, use ADM1816-5ART-REEL; for 2.88 V, use ADM1816-10ART-REEL. Each variant is laser-trimmed and tested to its specified trip point.

What is the maximum sink current capability of ADM1816-20ART-REEL's RST output?

The RST output of ADM1816-20ART-REEL sinks up to 8 mA when asserted (V_OUT = 0.4 V, V_CC ≥ 2.7 V), enabling direct interface with standard CMOS reset inputs without external drivers or level shifters.

ADM1816-20ART-REEL Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Bulk

Product Status:: Obsolete

Programmable:: Not Verified

Type:: Simple Reset/Power-On Reset

Number of Voltages Monitored:: 1

Voltage - Threshold:: -

Output:: Open Drain or Open Collector

Reset:: Active Low

Reset Timeout:: 100ms Minimum

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

ADM1816-20ART-REEL FAQ

1.How can I place an order for ADM1816-20ART-REEL through Aetrix?

Please submit a Request for Quotation (RFQ) for ADM1816-20ART-REEL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for ADM1816-20ART-REEL reliable?

The price and inventory of ADM1816-20ART-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1816-20ART-REEL is usually 5 days.

3.What payment methods are accepted for ADM1816-20ART-REEL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1816-20ART-REEL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADM1816-20ART-REEL?

ADM1816-20ART-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADM1816-20ART-REEL order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for ADM1816-20ART-REEL?

For technical support, including ADM1816-20ART-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1816-20ART-REEL requirements.

6.How does Aetrix verify that ADM1816-20ART-REEL is sourced from the original manufacturer or authorized distributors?

All ADM1816-20ART-REEL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADM1816-20ART-REEL meets industry standards.

7.What is the process for return or replacement of ADM1816-20ART-REEL?

All ADM1816-20ART-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM1816-20ART-REEL, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The ADM1816-20ART-REEL part is unused and in its original packaging.

Return procedure for ADM1816-20ART-REEL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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