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Analog Devices Inc. ADM1811-5ART-REEL
- Part No.:
- ADM1811-5ART-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1811-5ART-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,247
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Product details
Overview
ADM1811-5ART-REEL from Analog Devices is a precision 4.62 V active-low voltage supervisor IC with open-drain output and internal 5.5 kΩ pull-up resistor, designed for reliable power-on reset in 5 V microprocessor systems. It delivers 150 ms reset timeout, operates from −40°C to +105°C, sinks up to 8 mA, and consumes only 9–16 µA supply current - enabling robust system initialization in industrial controllers and embedded instrumentation.
For engineers reviewing the ADM1811-5ART-REEL datasheet, ADM1811-5ART-REEL pinout, ADM1811-5ART-REEL application, or ADM1811-5ART-REEL equivalent, key selection considerations include its fixed 4.62 V trip point, SOT-23 package compatibility, open-drain interface requirements, and absence of manual reset functionality (unlike ADM1813/ADM1818).
Technical Context
The ADM1811-5ART-REEL integrates a precision voltage reference, comparator, and 150 ms delay timer to ensure safe microprocessor startup after power stabilization. Its internal pull-up resistor eliminates external components for active-low reset signaling to compatible MCU reset inputs.
It uses a bandgap-based threshold detection circuit with ±1.5% typical accuracy over temperature and features fast 10 µs falling-edge response and 150 ms rising-edge reset assertion - meeting critical timing requirements for deterministic boot sequences in automotive and industrial control units.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.62 V typical (min 4.50 V, max 4.75 V) - precisely monitors 5 V supplies without external scaling. |
| Reset Timeout | 150 ms typical (100–250 ms range) - guarantees sufficient power rail stabilization before releasing reset. |
| Output Type | Active-low open-drain with 5.5 kΩ internal pull-up - simplifies interface to microcontroller reset pins requiring low-active assertion. |
| Supply Current | 9–16 µA at 5.5 V - enables ultra-low-power operation in battery-backed or energy-sensitive systems. |
| Operating Temp | −40°C to +105°C - supports deployment in extended-temperature industrial and automotive environments. |
| Output Sink | 8 mA at VOUT = 0.4 V - drives standard CMOS/TTL reset inputs without external buffer. |
| Package | SOT-23 (RT-3) - 3-pin, surface-mount footprint compatible with high-density PCB layouts. |
Pinout & Package
ADM1811-5ART-REEL is housed in a 3-lead SOT-23 (RT-3) package per JEDEC TO-236-AB, with 1.3 mm × 2.9 mm body size and 0.95 mm height. Pin 1 is RST (active-low open-drain output), Pin 2 is VCC (monitored supply input), and Pin 3 is GND (0 V reference).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-low reset output | Drives low during undervoltage condition and for 150 ms after VCC rises above 4.62 V; requires external pull-up only if higher impedance than 5.5 kΩ is needed. |
| VCC | Supply voltage input | Monitors the 5 V rail directly; no external divider required due to factory-trimmed 4.62 V threshold. |
| GND | Ground reference | Provides 0 V return path for internal reference and comparator; must be connected to system ground plane for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 4.62 V trip point | Enables direct monitoring of nominal 5 V supplies without resistor networks or calibration. |
| 150 ms reset timeout | Ensures stable power delivery before processor release - prevents premature execution during brown-out recovery. |
| Internal 5.5 kΩ pull-up | Eliminates need for external resistor, reducing BOM count and layout area in space-constrained designs. |
| Low 9–16 µA quiescent current | Minimizes standby power draw in always-on systems such as smart sensors and remote I/O modules. |
| −40°C to +105°C operation | Validated for use in under-hood automotive ECUs and industrial PLCs without derating. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power sequencing in programmable logic controller CPU boards where 5 V rail must stabilize before firmware execution. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-low reset until VCC exceeds 4.62 V and remains valid for 150 ms. Use Value: Prevents corrupted register states and bus contention during cold start by enforcing deterministic reset timing. | Use Scenario: Reset management for microcontrollers in door module electronics exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Monitors 5 V supply derived from vehicle battery; asserts reset during cranking-induced dips below 4.50 V. Use Value: Guarantees clean restart after engine start transients without requiring external watchdog or RC network. |
| Medical Diagnostic Instrument | Network Edge Router |
Use Scenario: Ensuring reliable boot of ARM-based processing unit in portable ultrasound equipment with dual 5 V/3.3 V rails. IC Role / Device Role / Timing Role: Primary 5 V supervisor generating reset signal synchronized to power-good status of main DC/DC converter. Use Value: Eliminates risk of firmware crash due to marginal VCC during warm-up phase in Class II medical devices. | Use Scenario: Reset coordination across multiple ASICs and PHYs in enterprise-grade Ethernet switch line cards. IC Role / Device Role / Timing Role: Centralized reset generator for 5 V auxiliary domain powering management microcontrollers and fan controllers. Use Value: Provides consistent, jitter-free reset pulse timing across distributed subsystems without skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SEUR+T | 4.63 V threshold, 140 ms reset timeout, SC70-3 package, no internal pull-up | Requires external 47 kΩ pull-up; slightly tighter temp range (−40°C to +85°C) | Choose when SC70 footprint is preferred and external pull-up is acceptable. |
| TPS3808G01DBVR | 4.63 V threshold, adjustable reset delay (1.25 ms to 10 s), SOT-23-6, no internal pull-up | 6-pin package adds enable and manual reset; higher quiescent current (12 µA typical) | Choose when programmable delay or manual reset capability is required. |
Compared with MAX809SEUR+T and TPS3808G01DBVR, the ADM1811-5ART-REEL offers integrated pull-up and guaranteed 105°C operation - making it optimal for compact, high-reliability 5 V reset applications where board space and thermal margin are critical.
Availability
ADM1811-5ART-REEL is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, medical diagnostic instruments, and network edge routers requiring stable component supply and long-term production continuity.
Supply support for ADM1811-5ART-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 since 1965.
The ADM181x series was developed specifically for cost-sensitive, space-constrained microprocessor reset applications demanding precision voltage monitoring and guaranteed reset timing - targeting embedded systems where reliability and simplicity are paramount.
FAQ
What is the exact reset threshold voltage of the ADM1811-5ART-REEL?
The ADM1811-5ART-REEL has a nominal reset threshold of 4.62 V, with guaranteed minimum and maximum values of 4.50 V and 4.75 V respectively across −40°C to +105°C. This fixed threshold is factory-trimmed and does not require external resistors, making it ideal for direct 5 V supply monitoring in the ADM1811-5ART-REEL application.
Does the ADM1811-5ART-REEL support manual reset via push-button?
No, the ADM1811-5ART-REEL does not support manual reset. Unlike the ADM1813 or ADM1818 variants, it lacks push-button reset circuitry. Its function is strictly voltage-monitoring with automatic reset assertion on VCC drop below 4.62 V and 150 ms hold time after recovery - a key distinction confirmed in the ADM1811-5ART-REEL datasheet Section "ADM1811 AND ADM1816".
What package type is used for the ADM1811-5ART-REEL?
ADM1811-5ART-REEL uses the 3-lead SOT-23 (RT-3) package per JEDEC TO-236-AB, with dimensions 2.90 mm × 1.30 mm × 1.02 mm. The "RT" in the part number explicitly denotes this SOT-23 variant, distinguishing it from SC70 ("AKS"/"AKSZ") versions - critical for footprint compatibility in the ADM1811-5ART-REEL layout.
How does the internal pull-up resistor affect ADM1811-5ART-REEL interfacing?
The ADM1811-5ART-REEL integrates a 5.5 kΩ internal pull-up resistor on the RST pin, enabling direct connection to microcontrollers that accept open-drain active-low reset inputs. This eliminates the need for an external pull-up, reducing component count and PCB area - a verified design feature documented in Table 1 ("INTERNAL PULL-UP RESISTOR") of the ADM1811-5ART-REEL datasheet.
Is the ADM1811-5ART-REEL RoHS compliant?
Yes, the ADM1811-5ART-REEL is RoHS compliant. The "Z" suffix in alternate ordering codes (e.g., ADM1811-5ARTZ-REEL) explicitly indicates RoHS compliance, and Analog Devices confirms full compliance for all parts in the ADM181x family manufactured after 2006. The ADM1811-5ART-REEL meets EU Directive 2011/65/EU and subsequent amendments.
ADM1811-5ART-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:
- 4.62V
- 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
ADM1811-5ART-REEL FAQ
1.How can I place an order for ADM1811-5ART-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1811-5ART-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 ADM1811-5ART-REEL reliable?
The price and inventory of ADM1811-5ART-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1811-5ART-REEL is usually 5 days.
3.What payment methods are accepted for ADM1811-5ART-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1811-5ART-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1811-5ART-REEL?
ADM1811-5ART-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1811-5ART-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 ADM1811-5ART-REEL?
For technical support, including ADM1811-5ART-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1811-5ART-REEL requirements.
6.How does Aetrix verify that ADM1811-5ART-REEL is sourced from the original manufacturer or authorized distributors?
All ADM1811-5ART-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 ADM1811-5ART-REEL meets industry standards.
7.What is the process for return or replacement of ADM1811-5ART-REEL?
All ADM1811-5ART-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM1811-5ART-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 ADM1811-5ART-REEL part is unused and in its original packaging.
Return procedure for ADM1811-5ART-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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