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Analog Devices Inc. ADM1818-10ART-RL7
- Part No.:
- ADM1818-10ART-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1818-10ART-RL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,741
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Product details
Overview
ADM1818-10ART-RL7 from Analog Devices is a microprocessor reset circuit with open-drain output and internal 5.5 kΩ pull-up resistor, designed to monitor 3.3 V power supplies. It features a 2.88 V (typical) reset threshold, 150 ms reset timeout, −40°C to +105°C operating temperature range, and supports manual push-button reset initiation. It is used in embedded controllers requiring reliable power-on initialization.
For engineers reviewing the ADM1818-10ART-RL7 datasheet, ADM1818-10ART-RL7 pinout, ADM1818-10ART-RL7 application, or ADM1818-10ART-RL7 equivalent, key selection criteria include trip point accuracy (±1.5% typical), low quiescent current (≤10 µA at 3.6 V), push-button compatibility, SC70/SOT-23 package options, and industrial-grade temperature support.
Technical Context
The ADM1818-10ART-RL7 implements a precision voltage comparator with built-in hysteresis and a fixed 150 ms power-up reset delay timer. Its internal reference and bias circuitry ensure stable trip point performance across temperature (±0.5% drift from −40°C to +105°C).
This device operates in open-drain mode with an integrated 5.5 kΩ pull-up resistor, enabling direct interface to microcontroller reset inputs without external components. The push-button reset function detects >1 µs ground pulse on RST and extends reset assertion for 150 ms typical after release.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.88 V typical (monitors 3.3 V supply with 13% undervoltage margin) |
| Reset Timeout | 150 ms typical (ensures stable power supply before system initialization) |
| Supply Voltage Range | 1.2 V to 5.5 V (supports wide input monitoring including 3.3 V and 2.5 V rails) |
| Quiescent Current | 4 µA to 10 µA at 3.6 V (enables ultra-low-power operation in battery-backed systems) |
| Output Type | Open-drain with 5.5 kΩ internal pull-up (eliminates need for external resistor in most MCU reset interfaces) |
| Operating Temperature | −40°C to +105°C (qualified for industrial and automotive under-hood applications) |
| Push-Button Response | Detects >1 µs button press; holds reset active for 150 ms after release (prevents spurious resets from contact bounce) |
Pinout & Package
ADM1818-10ART-RL7 is supplied in the 3-lead SOT-23 (RT-3) package, measuring 2.90 mm × 1.30 mm × 1.02 mm, with JEDEC TO-236-AB compliance and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low open-drain reset output; sinks up to 8 mA when asserted; floats high via internal 5.5 kΩ pull-up when inactive |
| 2 | VCC | Supply voltage input and monitored rail; powers internal circuitry and sets comparator reference |
| 3 | GND | Ground reference for all internal functions and reset output logic |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pull-up resistor | 5.5 kΩ internal pull-up eliminates external component for standard MCU reset input compatibility |
| Manual reset support | Push-button connected between RST and GND triggers guaranteed 150 ms reset pulse after release |
| Precision voltage monitoring | 2.88 V trip point with ±1.5% typical tolerance ensures accurate 3.3 V supply supervision |
| Industrial temperature range | −40°C to +105°C operation enables use in harsh environments without derating |
| Low-power design | 4 µA max supply current at 3.6 V allows integration into always-on subsystems |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power sequencing in programmable logic controller mainboard during cold start and brownout recovery. IC Role / Device Role / Timing Role: Monitors 3.3 V I/O rail and asserts reset until voltage stabilizes above 2.88 V for ≥150 ms. Use Value: Prevents firmware execution during unstable power conditions, eliminating watchdog timeouts and memory corruption. |
Use Scenario: Reset coordination for microcontroller and CAN transceiver during vehicle ignition cycle. IC Role / Device Role / Timing Role: Generates synchronized reset pulse after 3.3 V domain reaches regulation, with push-button override for service mode. Use Value: Ensures deterministic boot order across multiple voltage domains in ASIL-B compliant systems. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Battery-powered portable ultrasound unit requiring safe startup after Li-ion charge cycle completion. IC Role / Device Role / Timing Role: Supervises 3.3 V system rail generated by buck converter; provides 150 ms delay before releasing MCU reset. Use Value: Guarantees ADC reference and clock stability prior to signal acquisition, reducing calibration drift. |
Use Scenario: Tamper-resistant electricity meter with non-volatile configuration storage and real-time clock backup. IC Role / Device Role / Timing Role: Detects 3.3 V supply collapse during mains interruption and initiates controlled shutdown sequence via reset assertion. Use Value: Preserves metering data integrity and prevents EEPROM write corruption during power loss events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326–29D2T | 2.93 V fixed threshold; 140 ms reset timeout; no internal pull-up (requires external resistor) | Lacks push-button reset functionality; requires PCB layout change for pull-up implementation | Preferred where tighter threshold tolerance (±0.5%) is required and manual reset is unnecessary |
| TPS3808G18DBVR | 1.8 V threshold; adjustable delay (1.25 ms to 10 s); higher quiescent current (12 µA typical) | Designed for lower-voltage rails; not suitable for 3.3 V monitoring without external divider network | Select only if system requires programmable delay or multi-rail supervision with external scaling |
Compared with MAX6326–29D2T and TPS3808G18DBVR, the ADM1818-10ART-RL7 offers integrated push-button support and internal pull-up-reducing BOM count and board space-while delivering precise 2.88 V supervision optimized for 3.3 V systems without external components.
Availability
ADM1818-10ART-RL7 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 across extended temperature ranges and long production lifecycles.
Supply support for ADM1818-10ART-RL7 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 developed specifically for cost-sensitive, space-constrained microprocessor reset applications in industrial and automotive systems, emphasizing reliability, low power, and ease of integration.
FAQ
What is the exact reset threshold voltage of the ADM1818-10ART-RL7?
The ADM1818-10ART-RL7 has a nominal reset threshold of 2.88 V (typical), with a specified range of 2.80 V (min) to 2.97 V (max) at TA = −40°C to +105°C. This value is factory-trimmed and applies directly to the VCC pin without external resistive dividers, making it ideal for monitoring standard 3.3 V power rails.
Does the ADM1818-10ART-RL7 require an external pull-up resistor?
No, the ADM1818-10ART-RL7 includes an internal 5.5 kΩ pull-up resistor on the RST pin, enabling direct connection to most microcontroller reset inputs. External pull-up is unnecessary unless a different logic level or timing behavior is required-verified in the ADM1818-10ART-RL7 datasheet Section "Internal Pull-Up Resistor".
Can the ADM1818-10ART-RL7 be used with a push-button reset switch?
Yes, the ADM1818-10ART-RL7 explicitly supports manual reset via a push-button connected between the RST pin and GND. Pressing the button pulls RST low for >1 µs; upon release, the device holds RST low for 150 ms (typical), ensuring clean, debounced reset generation per ADM1818-10ART-RL7 functional description.
What package type is used for the ADM1818-10ART-RL7?
The ADM1818-10ART-RL7 uses the 3-lead SOT-23 (RT-3) package, measuring 2.90 mm × 1.30 mm × 1.02 mm, with gull-wing leads and JEDEC TO-236-AB compliance. This compact footprint supports high-density PCB layouts in space-constrained embedded applications.
What is the operating temperature range for the ADM1818-10ART-RL7?
The ADM1818-10ART-RL7 is rated for continuous operation from −40°C to +105°C, qualified per industrial temperature specifications. This range is confirmed in the Absolute Maximum Ratings table and supported across all electrical parameters in the ADM1818-10ART-RL7 datasheet Rev. F.
ADM1818-10ART-RL7 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:
- 2.88V
- 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
ADM1818-10ART-RL7 FAQ
1.How can I place an order for ADM1818-10ART-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1818-10ART-RL7 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 ADM1818-10ART-RL7 reliable?
The price and inventory of ADM1818-10ART-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1818-10ART-RL7 is usually 5 days.
3.What payment methods are accepted for ADM1818-10ART-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1818-10ART-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1818-10ART-RL7?
ADM1818-10ART-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1818-10ART-RL7 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 ADM1818-10ART-RL7?
For technical support, including ADM1818-10ART-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1818-10ART-RL7 requirements.
6.How does Aetrix verify that ADM1818-10ART-RL7 is sourced from the original manufacturer or authorized distributors?
All ADM1818-10ART-RL7 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 ADM1818-10ART-RL7 meets industry standards.
7.What is the process for return or replacement of ADM1818-10ART-RL7?
All ADM1818-10ART-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1818-10ART-RL7, 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 ADM1818-10ART-RL7 part is unused and in its original packaging.
Return procedure for ADM1818-10ART-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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