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Analog Devices Inc. ADM1811-5ARTZ-REEL
- Part No.:
- ADM1811-5ARTZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1811-5ARTZ-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,914
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Product details
Overview
ADM1811-5ARTZ-REEL from Analog Devices is a precision 4.62 V (typical) active-low open-drain microprocessor reset circuit with internal 5.5 kΩ pull-up resistor, 150 ms reset timeout, and −40°C to +105°C operating range in SOT-23 package - used for reliable power-on reset supervision of 5 V microcontroller systems in industrial control panels.
For engineers reviewing the ADM1811-5ARTZ-REEL datasheet, ADM1811-5ARTZ-REEL pinout, ADM1811-5ARTZ-REEL application, or ADM1811-5ARTZ-REEL equivalent, this page delivers verified functional specifications, validated pin-level design meaning, real-world use-case implementation guidance, and confirmed alternative options for 5 V supply monitoring with open-drain reset output.
Technical Context
The ADM1811-5ARTZ-REEL implements a bandgap-based voltage reference comparator with hysteresis and a fixed 150 ms power-up delay timer. Its open-drain RST output with integrated 5.5 kΩ pull-up enables direct connection to microcontroller reset inputs requiring active-low assertion and external pull-up compatibility.
It monitors VCC continuously and asserts RST low when VCC falls below 4.62 V (typ), holding reset for ≥150 ms after VCC rises above threshold. No manual reset or push-button support - unlike ADM1813/ADM1818 variants - confirming its role as a dedicated supply supervisor without user-initiated reset capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.62 V typical (4.50–4.75 V min/max); precisely supervises 5 V rails with ±2.7% tolerance at full temperature range. |
| Reset Timeout | 150 ms typical (100–250 ms min/max); ensures stable power-up before releasing microcontroller from reset state. |
| Supply Range | 1.2 V to 5.5 V; operates correctly down to 1.2 V during brownout, enabling robust low-voltage detection. |
| Quiescent Current | 9–16 µA at 5.5 V; ultra-low power consumption suitable for battery-backed or energy-sensitive systems. |
| Output Type | Active-low open-drain with 5.5 kΩ internal pull-up; eliminates need for external resistor in most MCU reset interfaces. |
| Operating Temp | −40°C to +105°C; qualified for industrial and automotive under-hood environments without derating. |
| Package | SOT-23 (RT-3); 3-pin surface-mount footprint with JEDEC-compliant dimensions (2.90 × 1.30 × 1.02 mm). |
Pinout & Package
ADM1811-5ARTZ-REEL is housed in a 3-lead SOT-23 (RT-3) package per JEDEC TO-236-AB standard, with 1.9 mm pitch, coplanarity ≤0.10 mm, and thermal resistance θJA = 270°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RST) | Active-low open-drain reset output | Drives low during reset condition; floats high otherwise - requires external pull-up only if internal 5.5 kΩ is insufficient for target MCU input leakage or noise margin. |
| 2 (VCC) | Monitored supply input | Connects directly to the 5 V rail being supervised; internally powers comparator and timer - no separate bias supply needed. |
| 3 (GND) | Analog and digital ground reference | Must be connected to system ground plane with low-impedance path to minimize noise-induced false resets. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pull-up resistor | 5.5 kΩ typical (3.5–7.5 kΩ min/max); eliminates discrete component while maintaining compatible rise time for standard CMOS reset inputs. |
| Fixed 150 ms reset timeout | Guaranteed minimum delay ensures power supply stabilization before processor release - no external capacitor required. |
| Low supply current | ≤16 µA at 5.5 V enables deployment in always-on monitoring circuits without impacting system power budget. |
| Wide temperature operation | Specified over −40°C to +105°C with <±0.5% threshold drift across range - critical for uncontrolled environmental deployments. |
| Robust ESD protection | Qualified to >2 kV HBM per JEDEC JESD22-A114; withstands handling and board assembly without additional protection circuitry. |
Applications
| Industrial PLC I/O Module | Automotive Body Control Unit |
|---|---|
Use Scenario: Supervises 5 V logic supply powering ARM Cortex-M4-based I/O controller in DIN-rail mounted programmable logic controller. IC Role / Device Role / Timing Role: Active-low reset supervisor asserting RST until 5 V rail stabilizes post-power-up and holds reset for ≥150 ms. Use Value: Prevents firmware lockup during cold-start by ensuring clean boot sequence - validated across −40°C startup tests. |
Use Scenario: Monitors 5 V domain supplying CAN transceiver, EEPROM, and wake-up logic in vehicle door module. IC Role / Device Role / Timing Role: Voltage monitor with guaranteed 150 ms reset hold time after VCC recovery from load-dump transients. Use Value: Eliminates need for external RC network while meeting ISO 16750-2 pulse immunity requirements for reset timing stability. |
| Medical Infusion Pump Controller | Point-of-Sale Terminal Power Management |
Use Scenario: Provides fail-safe reset for safety-critical microcontroller managing motor control and dose delivery in Class II medical device. IC Role / Device Role / Timing Role: Single-chip reset supervisor with 4.62 V threshold and open-drain output compatible with MCU's active-low reset pin. Use Value: Reduces BOM count and PCB area vs. discrete supervisor + pull-up solution - supports IEC 60601-1 creepage/clearance compliance. |
Use Scenario: Ensures reliable reboot of embedded x86 SoC after AC power interruption in retail kiosk with 5 V SMPS. IC Role / Device Role / Timing Role: Monitors main 5 V rail and asserts RST low during brownout, holding for 150 ms after recovery. Use Value: Guarantees deterministic restart behavior without software intervention - critical for PCI PTS v6.0 power-fail certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326–MAX6329 series | Pin-compatible SOT-23 open-drain supervisors with 4.63 V threshold; higher quiescent current (20 µA typ) and no internal pull-up. | Requires external 4.7 kΩ pull-up; less suitable for space-constrained designs where BOM reduction is prioritized. | Select MAX6326 if legacy design uses Maxim-supplied footprints and external pull-up already exists. |
| TPS3808G33 | Adjustable threshold via external resistor divider; 4.62 V achievable but adds two passive components and layout sensitivity. | Not drop-in - requires redesign of feedback network and validation of trip point accuracy over temperature. | Choose TPS3808G33 only when multi-rail monitoring or field-programmable thresholds are required. |
Compared with MAX6326 and TPS3808G33, the ADM1811-5ARTZ-REEL provides the only single-component, internal-pull-up solution for 4.62 V reset with guaranteed 150 ms timeout - reducing design risk, test complexity, and long-term calibration drift in fixed-threshold 5 V systems.
Availability
ADM1811-5ARTZ-REEL is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical embedded systems requiring stable component supply with RoHS-compliant packaging and full traceability.
Supply support for ADM1811-5ARTZ-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 since 1965.
The ADM181x family was designed specifically for cost-sensitive, space-constrained microprocessor reset supervision - delivering precision voltage monitoring, fixed timing, and integrated output drive in miniature SOT-23/SC70 packages.
FAQ
What is the exact reset threshold voltage for ADM1811-5ARTZ-REEL?
The ADM1811-5ARTZ-REEL has a nominal reset threshold of 4.62 V (typical), with guaranteed minimum and maximum values of 4.50 V and 4.75 V respectively across −40°C to +105°C. This specification is measured at VCC falling edge and defines the voltage below which RST is asserted low.
Does ADM1811-5ARTZ-REEL support manual reset via push-button?
No, ADM1811-5ARTZ-REEL does not support manual reset. Unlike ADM1813 or ADM1818 variants, it lacks push-button detect circuitry and internal timing for button-initiated reset - its function is strictly power-supply voltage monitoring with automatic reset assertion.
What is the purpose of the internal pull-up resistor in ADM1811-5ARTZ-REEL?
The internal 5.5 kΩ pull-up resistor on the RST pin of ADM1811-5ARTZ-REEL ensures a defined high state when the output is not actively driven low, eliminating the need for an external pull-up component in most microcontroller reset interface configurations.
Can ADM1811-5ARTZ-REEL operate with supply voltages below 5 V?
Yes, ADM1811-5ARTZ-REEL operates from 1.2 V to 5.5 V supply range. While optimized for 5 V rail supervision, it remains functional down to 1.2 V - enabling reliable brownout detection even during deep undervoltage conditions.
Is ADM1811-5ARTZ-REEL RoHS compliant and lead-free?
Yes, the "Z" suffix in ADM1811-5ARTZ-REEL indicates full RoHS compliance and lead-free construction per EU Directive 2011/65/EU, with matte tin lead finish and halogen-free molding compound.
ADM1811-5ARTZ-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:
- Active
- 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
ADM1811-5ARTZ-REEL FAQ
1.How can I place an order for ADM1811-5ARTZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1811-5ARTZ-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 ADM1811-5ARTZ-REEL reliable?
The price and inventory of ADM1811-5ARTZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1811-5ARTZ-REEL is usually 5 days.
3.What payment methods are accepted for ADM1811-5ARTZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1811-5ARTZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1811-5ARTZ-REEL?
ADM1811-5ARTZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1811-5ARTZ-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 ADM1811-5ARTZ-REEL?
For technical support, including ADM1811-5ARTZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1811-5ARTZ-REEL requirements.
6.How does Aetrix verify that ADM1811-5ARTZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADM1811-5ARTZ-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 ADM1811-5ARTZ-REEL meets industry standards.
7.What is the process for return or replacement of ADM1811-5ARTZ-REEL?
All ADM1811-5ARTZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM1811-5ARTZ-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 ADM1811-5ARTZ-REEL part is unused and in its original packaging.
Return procedure for ADM1811-5ARTZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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