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Analog Devices Inc. ADM1818-5ARTZ-REEL
- Part No.:
- ADM1818-5ARTZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1818-5ARTZ-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,045
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Product details
Overview
ADM1818-5ARTZ-REEL from Analog Devices is a microprocessor reset circuit with open-drain output and internal pull-up resistor, designed to monitor 3.06 V (typical) supply voltage in embedded systems. It provides 150 ms reset timeout, operates from −40°C to +105°C, draws ≤16 µA supply current at 5.5 V, and supports manual push-button reset for system initialization in industrial controllers.
For engineers reviewing the ADM1818-5ARTZ-REEL datasheet, ADM1818-5ARTZ-REEL pinout, ADM1818-5ARTZ-REEL application, or ADM1818-5ARTZ-REEL equivalent, this page delivers verified specifications, SOT-23 package details, functional block context, real-world use cases, and two validated alternative parts for 3 V supply monitoring reset applications.
Technical Context
The ADM1818-5ARTZ-REEL implements a precision voltage comparator with built-in 150 ms power-up delay timer and push-button detection logic. Its internal reference ensures ±1.5% trip point accuracy over temperature, and the open-drain RST output with 5.5 kΩ typical internal pull-up enables flexible interface to diverse microcontroller reset inputs.
It features dual reset initiation: automatic on VCC falling below 3.06 V (typ), and manual via external push-button connected between RST and GND - triggering a guaranteed 150 ms low pulse after button release. No external components are required for basic operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.06 V typical; monitors 3.3 V supply rails with safe undervoltage detection margin |
| Reset Timeout | 150 ms typical; ensures stable power-up before releasing microprocessor reset |
| Supply Current | 16 µA max at 5.5 V; enables ultra-low-power operation in battery-backed systems |
| Operating Temp | −40°C to +105°C; qualified for industrial and automotive under-hood environments |
| Output Type | Open-drain with 5.5 kΩ internal pull-up; eliminates need for external resistor in most designs |
| Push-Button Support | 1 µs detect threshold; allows reliable manual reset with standard tactile switches |
| Package | SOT-23 (RT-3); 3-pin, 2.9 mm × 1.3 mm footprint for space-constrained PCBs |
Pinout & Package
ADM1818-5ARTZ-REEL is housed in a 3-lead SOT-23 (RT-3) package with JEDEC TO-236-AB compliance, 1.3 mm maximum height, and 0.95 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-low open-drain reset output | Pulled low during reset condition; floats high (via internal 5.5 kΩ) when inactive; accepts external push-button to GND |
| VCC | Supply voltage input | Monitored rail input; powers internal circuitry and sets comparator reference; range 1.2–5.5 V |
| GND | Ground reference | 0 V return path for all internal functions and reset output sink current |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pull-up resistor | 5.5 kΩ typical; removes external component requirement and reduces BOM count |
| Manual reset support | Dedicated push-button detection with 1 µs minimum pulse width; enables field service and recovery |
| Temperature-stable threshold | ±1.5% variation over −40°C to +105°C; avoids spurious resets in thermal cycling environments |
| Low quiescent current | ≤16 µA at 5.5 V; extends battery life in always-on monitoring applications |
| Fast transient immunity | Rejects <10 µs supply glitches; prevents false triggers from noise or coupling |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Monitors 3.3 V microcontroller supply in programmable logic controller cabinets exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Voltage supervisor providing power-on reset and manual recovery via front-panel button. Use Value: Ensures deterministic boot sequence after brownout or maintenance reset; eliminates need for external pull-up or debounce circuitry. | Use Scenario: Supervises 3.3 V domain powering CAN transceiver and MCU in door module electronics. IC Role / Device Role / Timing Role: Reset generator with 150 ms timeout aligned to power rail stabilization time of automotive LDOs. Use Value: Prevents MCU lockup during cold-crank voltage sag; push-button capability supports dealer diagnostics mode entry. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Validates 3.3 V logic supply before enabling motor control and sensor acquisition subsystems. IC Role / Device Role / Timing Role: Safety-critical reset supervisor with guaranteed 150 ms hold time and precise 3.06 V trip point. Use Value: Meets IEC 62304 Class C software safety requirements by ensuring clean power-up before firmware execution. | Use Scenario: Monitors auxiliary 3.3 V rail powering metrology IC and RTC in utility-grade electricity meters. IC Role / Device Role / Timing Role: Low-current voltage monitor enabling >10-year battery backup operation during mains failure. Use Value: Draws only 16 µA supply current, extending supercapacitor hold-up time without compromising reset reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326T29D3+T | 2.93 V reset threshold, 200 ms timeout, SC70-3 package, no push-button support | Lacks manual reset functionality; requires external pull-up for open-drain output | Select when higher trip point tolerance (±2.5%) and longer timeout are acceptable, and push-button is not needed |
| TPS3808G30DBVR | 3.0 V threshold, 200 ms timeout, SOT-23-6 package, active-low push-pull output | Push-pull output requires no pull-up but consumes more quiescent current (12 µA vs. 16 µA) | Choose when board layout allows 6-pin footprint and system reset input tolerates active-low push-pull drive |
Compared with MAX6326T29D3+T and TPS3808G30DBVR, ADM1818-5ARTZ-REEL uniquely combines 3.06 V precision monitoring, integrated pull-up, push-button support, and ultra-low current in a 3-pin SOT-23 - making it optimal for cost-sensitive, space-constrained industrial and automotive reset applications requiring manual intervention.
Availability
ADM1818-5ARTZ-REEL is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, medical infusion pumps, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADM1818-5ARTZ-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.
The ADM181x series was engineered specifically for reliable, low-cost microprocessor reset supervision in space- and power-constrained embedded systems - emphasizing precision trip points, guaranteed timeout, and minimal external component count.
FAQ
What is the exact reset threshold voltage for ADM1818-5ARTZ-REEL?
The ADM1818-5ARTZ-REEL has a nominal reset threshold of 3.06 V (typical), with a guaranteed range of 2.98 V to 3.15 V over −40°C to +105°C. This value is factory-trimmed and specified in Table 1 of the Rev. F datasheet. The "-5" suffix denotes the 3.06 V option within the ADM1818 family, distinct from -10 (2.88 V), -20 (2.55 V), or R22/R23 variants.
Does ADM1818-5ARTZ-REEL require an external pull-up resistor?
No, ADM1818-5ARTZ-REEL does not require an external pull-up resistor. It integrates a 5.5 kΩ (typical) internal pull-up on the RST pin, as confirmed in Table 1 under "INTERNAL PULL-UP RESISTOR" and Figure 11's typical application diagram. This eliminates BOM cost and PCB area while maintaining compatibility with standard microcontroller reset inputs.
Can ADM1818-5ARTZ-REEL be used with a push-button for manual reset?
Yes, ADM1818-5ARTZ-REEL explicitly supports manual reset via push-button: connecting a switch between RST and GND pulls the output low, and upon release, the device asserts a 150 ms (typical) reset pulse. This behavior is documented in the "ADM1813 AND ADM1818" section (Page 7) and Figure 12 timing diagram - a key differentiator versus non-push-button variants like ADM1815/ADM1816.
What package type and dimensions does ADM1818-5ARTZ-REEL use?
ADM1818-5ARTZ-REEL uses the 3-lead SOT-23 (RT-3) package per JEDEC TO-236-AB, with dimensions of 2.90 mm × 1.30 mm × 1.02 mm (L × W × H). Pin pitch is 0.95 mm, and lead coplanarity is ≤0.10 mm. These mechanical specs are defined in Figure 15 (Page 8) of the Rev. F datasheet and confirmed in the Ordering Guide.
Is ADM1818-5ARTZ-REEL RoHS compliant and halogen-free?
Yes, ADM1818-5ARTZ-REEL is RoHS compliant, as indicated by the "Z" suffix in its part number per the Ordering Guide footnote ("2 Z = RoHS Compliant Part"). Analog Devices' official product change notices and packaging data confirm full compliance with EU RoHS Directive 2011/65/EU and halogen-free status per IPC-4101 definition.
ADM1818-5ARTZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.06V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ADM1818-5ARTZ-REEL FAQ
1.How can I place an order for ADM1818-5ARTZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1818-5ARTZ-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 ADM1818-5ARTZ-REEL reliable?
The price and inventory of ADM1818-5ARTZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1818-5ARTZ-REEL is usually 5 days.
3.What payment methods are accepted for ADM1818-5ARTZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1818-5ARTZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1818-5ARTZ-REEL?
ADM1818-5ARTZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1818-5ARTZ-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 ADM1818-5ARTZ-REEL?
For technical support, including ADM1818-5ARTZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1818-5ARTZ-REEL requirements.
6.How does Aetrix verify that ADM1818-5ARTZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADM1818-5ARTZ-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 ADM1818-5ARTZ-REEL meets industry standards.
7.What is the process for return or replacement of ADM1818-5ARTZ-REEL?
All ADM1818-5ARTZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM1818-5ARTZ-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 ADM1818-5ARTZ-REEL part is unused and in its original packaging.
Return procedure for ADM1818-5ARTZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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