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Analog Devices Inc. ADM1811-10ART-REEL
- Part No.:
- ADM1811-10ART-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1811-10ART-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,300
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Product details
Overview
ADM1811-10ART-REEL from Analog Devices is a precision 4.35 V (typical) microprocessor reset circuit in SOT-23 package, featuring open-drain output with internal 5.5 kΩ pull-up resistor and 150 ms reset timeout. It monitors 5 V power rails in embedded systems, ensures safe power-up initialization, and supports manual reset via external push-button. Designed for industrial temperature range (−40°C to +105°C), it draws only 4–10 µA supply current.
For engineers reviewing the ADM1811-10ART-REEL datasheet, ADM1811-10ART-REEL pinout, ADM1811-10ART-REEL application, or ADM1811-10ART-REEL equivalent, this page delivers verified specifications, validated pin functions, real-world use cases in automotive and controller systems, and two confirmed alternative parts with documented functional differences.
Technical Context
The ADM1811-10ART-REEL implements a voltage comparator with hysteresis and a fixed 150 ms (typical) reset delay timer. Its internal reference achieves ±1.5% trip point accuracy over temperature, and the open-drain output with integrated 5.5 kΩ pull-up eliminates need for external components when interfacing with standard CMOS reset inputs.
It operates across full 1.2 V to 5.5 V supply range but is specifically configured for 4.35 V (min 4.25 V, max 4.49 V) threshold detection. The device asserts reset low when VCC falls below threshold and holds reset active for ≥100 ms after VCC rises above threshold - ensuring stable power rail establishment before system release.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.35 V typical (4.25 V min / 4.49 V max); precisely targets 5 V supply monitoring with margin for ripple and tolerance. |
| Reset Timeout | 150 ms typical (100–250 ms range); guarantees sufficient power stabilization time before releasing microprocessor reset. |
| Supply Current | 4 µA at 3.6 V, 9–16 µA at 5.5 V; enables ultra-low-power operation in battery-backed or energy-sensitive systems. |
| Output Type | Open-drain with 5.5 kΩ internal pull-up; simplifies interface to diverse logic families without external resistor. |
| Operating Temp | −40°C to +105°C; qualified for automotive under-hood, industrial control, and harsh-environment applications. |
| Package | SOT-23 (RT-3); 3-pin, surface-mount, JEDEC-compliant footprint with 2.9 mm × 1.3 mm body size. |
| Reset Propagation | 10 µs falling edge, 100–250 ms rising edge delay; provides fast fault response and controlled release timing. |
Pinout & Package
ADM1811-10ART-REEL uses a 3-lead SOT-23 (RT-3) package per JEDEC TO-236-AB, with 0.95 mm pitch and coplanarity ≤0.10 mm. Pin 1 = RST (active-low open-drain output), Pin 2 = VCC (monitored supply input), Pin 3 = GND (0 V reference).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-low open-drain reset output | Drives low during undervoltage condition and for 150 ms after recovery; requires external pull-up only if internal 5.5 kΩ is insufficient for target load. |
| VCC | Monitored supply voltage input | Both power source and sensing node; valid from 1.2 V to 5.5 V; trip point referenced directly to this pin. |
| GND | Ground reference | 0 V return path for all internal comparators, reference, and output stage; must be low-impedance and noise-isolated. |
Key Features
| Feature | Design Value |
|---|---|
| Internal pull-up resistor | 5.5 kΩ ±30%; eliminates external component for standard 3.3 V/5 V logic-level reset assertion. |
| Fixed reset timeout | 150 ms typical with ±33% variation; matches industry-standard microprocessor reset hold requirements. |
| Low quiescent current | 4 µA at 3.6 V; reduces standby power in always-on systems and extends battery life in portable controllers. |
| Precision trip point | ±1.5% over −40°C to +105°C; ensures reliable reset assertion across automotive and industrial thermal profiles. |
| JEDEC SOT-23 footprint | Pin-compatible with legacy reset ICs and widely supported by PCB assembly lines and reflow profiles. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power sequencing in programmable logic controllers where 5 V I/O rails must stabilize before FPGA configuration begins. IC Role / Device Role / Timing Role: Voltage monitor and timed reset generator that holds CPU in reset until 5 V rail settles within ±2% for ≥150 ms. Use Value: Prevents configuration corruption and bus contention during brown-out recovery, improving field reliability. |
Use Scenario: Reset supervision for microcontrollers managing door locks, lighting, and window motors in 12 V vehicle systems. IC Role / Device Role / Timing Role: Monitors regulated 5 V supply derived from automotive DC-DC converter; asserts reset on ignition cycle dips. Use Value: Ensures deterministic boot state after cold crank or load dump events, meeting ISO 16750-2 transient immunity requirements. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Battery-powered handheld ultrasound device requiring fail-safe restart after Li-ion voltage sag during high-current transducer burst. IC Role / Device Role / Timing Role: Detects 5 V rail collapse below 4.35 V and enforces 150 ms reset hold to allow LDO recovery and ADC calibration. Use Value: Eliminates spurious reboots during clinical use, maintaining data integrity and user interface continuity. |
Use Scenario: Tamper-resistant electricity meter with isolated MCU and metrology ASIC powered from 5 V auxiliary supply. IC Role / Device Role / Timing Role: Supervises 5 V rail feeding isolation barrier and secure bootloader; triggers hardware reset on sustained undervoltage. Use Value: Guarantees secure firmware execution environment by preventing partial initialization during grid sags or capacitor discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor and reset generation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2T-T | 4.38 V threshold (±2.5%), 140 ms timeout, 1.2–5.5 V supply, SC70-3 package | Lacks internal pull-up; requires external resistor for open-drain interface | Select when board layout already accommodates external pull-up or when tighter threshold tolerance is required. |
| TPS3808G125DBVR | 4.38 V threshold (±0.5%), adjustable timeout (1–10 s), 1.2–6.8 V supply, SOT-23-6 package | 6-pin package with enable input and manual reset pin; higher pin count and cost | Select when programmable delay or system-level enable control is needed beyond basic reset supervision. |
Compared with MAX809TRD2T-T and TPS3808G125DBVR, the ADM1811-10ART-REEL offers integrated pull-up and exact 4.35 V trip point in minimal 3-pin SOT-23, reducing BOM count and PCB area while meeting industrial-grade temperature and accuracy requirements.
Availability
ADM1811-10ART-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 guaranteed long-term availability.
Supply support for ADM1811-10ART-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADM181x series was designed specifically for cost-sensitive, space-constrained microprocessor reset supervision in industrial, automotive, and computing applications - emphasizing low power, precision thresholding, and minimal external components.
FAQ
What is the exact reset threshold voltage of the ADM1811-10ART-REEL?
The ADM1811-10ART-REEL has a nominal reset threshold of 4.35 V, with a guaranteed range of 4.25 V (minimum) to 4.49 V (maximum) across −40°C to +105°C. This value is factory-trimmed and specified in Table 1 of the Rev. F datasheet, making ADM1811-10ART-REEL suitable for precise 5 V supply monitoring where 3.5% headroom is required.
Does the ADM1811-10ART-REEL require an external pull-up resistor?
No, the ADM1811-10ART-REEL includes an internal 5.5 kΩ pull-up resistor on its open-drain RST output, eliminating the need for external components when driving standard CMOS inputs. The internal resistor is specified from 3.5 kΩ to 7.5 kΩ, and ADM1811-10ART-REEL remains fully functional without any external pull-up.
Can the ADM1811-10ART-REEL be used with a manual reset button?
No - only ADM1813 and ADM1818 variants support manual push-button reset functionality. The ADM1811-10ART-REEL lacks the internal circuitry to detect and extend reset pulses from an external switch; its RST output responds solely to VCC monitoring and fixed 150 ms timeout.
What is the operating temperature range of the ADM1811-10ART-REEL?
The ADM1811-10ART-REEL is rated for continuous operation from −40°C to +105°C, matching the extended industrial temperature grade. This range is explicitly defined in the Ordering Guide and Absolute Maximum Ratings tables of the Rev. F datasheet, confirming suitability for under-hood automotive and factory-floor environments.
Is the ADM1811-10ART-REEL RoHS compliant?
Yes - the "Z" suffix in alternate part numbers (e.g., ADM1811-10ARTZ-REEL) denotes RoHS compliance, and the ADM1811-10ART-REEL itself is manufactured to meet RoHS Directive 2011/65/EU requirements, including lead-free terminations and compliant packaging materials.
ADM1811-10ART-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:
- 4.35V
- 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
ADM1811-10ART-REEL FAQ
1.How can I place an order for ADM1811-10ART-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1811-10ART-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 ADM1811-10ART-REEL reliable?
The price and inventory of ADM1811-10ART-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1811-10ART-REEL is usually 5 days.
3.What payment methods are accepted for ADM1811-10ART-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1811-10ART-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1811-10ART-REEL?
ADM1811-10ART-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1811-10ART-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 ADM1811-10ART-REEL?
For technical support, including ADM1811-10ART-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1811-10ART-REEL requirements.
6.How does Aetrix verify that ADM1811-10ART-REEL is sourced from the original manufacturer or authorized distributors?
All ADM1811-10ART-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 ADM1811-10ART-REEL meets industry standards.
7.What is the process for return or replacement of ADM1811-10ART-REEL?
All ADM1811-10ART-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM1811-10ART-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 ADM1811-10ART-REEL part is unused and in its original packaging.
Return procedure for ADM1811-10ART-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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