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Analog Devices Inc. ADM1811-10ARTZ-RL
- Part No.:
- ADM1811-10ARTZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1811-10ARTZ-RL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,066
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Product details
Overview
ADM1811-10ARTZ-RL from Analog Devices is a precision 4.35 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-designed for reliable power-on initialization in 5 V microcontroller systems.
For engineers reviewing the ADM1811-10ARTZ-RL datasheet, ADM1811-10ARTZ-RL pinout, ADM1811-10ARTZ-RL application, or ADM1811-10ARTZ-RL equivalent, this page delivers verified specifications, package mapping to SOT-23, functional role in supply monitoring, and validated alternative options for industrial embedded designs.
Technical Context
The ADM1811-10ARTZ-RL integrates a precision voltage comparator with hysteresis, temperature-stable bandgap reference, and a fixed 150 ms power-up delay timer. Its open-drain output with integrated 5.5 kΩ pull-up eliminates external components when interfacing with standard CMOS reset inputs.
It operates across 1.2 V to 5.5 V supply range while consuming only 4–10 µA typical quiescent current, enabling use in battery-backed or low-power systems where supply rail stability must be confirmed before processor release.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.35 V typical (min 4.25 V, max 4.49 V); ensures reliable detection of 5 V supply brownout before system corruption. |
| Reset Timeout | 150 ms typical (100–250 ms range); provides guaranteed stabilization window for power rails and clocks prior to MCU release. |
| Output Type | Active-low open-drain with 5.5 kΩ internal pull-up; directly interfaces with standard microprocessor reset pins without external resistors. |
| Supply Range | 1.2 V to 5.5 V; supports operation during undervoltage conditions and enables use in multi-rail systems. |
| Quiescent Current | 4 µA at 3.6 V (typ), 9 µA at 5.5 V (typ); minimizes standby power draw in always-on monitoring applications. |
| Operating Temp | −40°C to +105°C; qualified for automotive under-hood and industrial control environments. |
| Reset Propagation | 100–250 ms rising-edge delay; prevents false resets during slow-rising or noisy supply ramps. |
Pinout & Package
ADM1811-10ARTZ-RL is housed in a RoHS-compliant 3-lead SOT-23 (RT-3) package with gull-wing leads, 1.3 mm × 2.9 mm footprint, and 0.95 mm height-optimized for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RST) | Active-low open-drain reset output | Drives low during VCC < 4.25 V and remains low for 150 ms after VCC exceeds 4.49 V; requires no external pull-up. |
| 2 (VCC) | Monitored supply input | Connects directly to the 5 V rail being supervised; also powers the internal comparator and timer circuitry. |
| 3 (GND) | Ground reference | 0 V return path for all internal functions; must be connected to system ground plane with low impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pull-up resistor | 5.5 kΩ ±20% internal resistor eliminates need for external component on RST line, reducing BOM count and layout area. |
| Fixed 150 ms timeout | Guaranteed minimum delay ensures stable power and clock startup before releasing microprocessor reset, preventing boot failures. |
| Low supply current | As low as 4 µA at 3.6 V enables continuous monitoring in energy-constrained systems without compromising battery life. |
| Wide temperature range | −40°C to +105°C operation supports deployment in harsh environments including automotive engine control units and industrial PLCs. |
| Precision trip point | 4.35 V threshold with ±1.5% tolerance over temperature ensures consistent reset behavior across full operating range. |
Applications
| Industrial PLC Power Sequencing | Automotive Body Control Module |
|---|---|
Use Scenario: Monitors main 5 V supply during cold cranking and load dump events to prevent MCU lockup. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-low reset until VCC stabilizes above 4.25 V for ≥150 ms. Use Value: Eliminates external RC timing network and pull-up resistor, reducing component count and improving thermal reliability. |
Use Scenario: Ensures safe boot of microcontroller after ignition switch transition, rejecting transient dips below 4.35 V. IC Role / Device Role / Timing Role: Dedicated reset generator with factory-trimmed threshold and fixed delay, independent of software. Use Value: Meets AEC-Q100 stress test requirements via specified −40°C to +105°C performance and 1.2–5.5 V supply operation. |
| Network Router Management CPU | Medical Diagnostic Instrument |
Use Scenario: Supervises auxiliary 5 V rail powering FPGA configuration and Ethernet PHY during power-up. IC Role / Device Role / Timing Role: Open-drain reset output compatible with multiple logic families (CMOS/TTL) and shared reset buses. Use Value: Internal 5.5 kΩ pull-up enables direct connection to reset inputs without level-shifting or additional passives. |
Use Scenario: Validates regulated 5 V supply before enabling imaging sensor array and ADC subsystems. IC Role / Device Role / Timing Role: Precision voltage monitor with 150 ms timeout ensuring analog front-end settles before digital processing begins. Use Value: 4.35 V trip point matches common 5 V LDO tolerances (±3%), minimizing false triggers during nominal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2T | 4.38 V reset threshold (±2.5%), 140 ms timeout, 20 µA max supply current, SOT-23-3 package. | Higher quiescent current and looser threshold tolerance; lacks internal pull-up (requires external 100 kΩ resistor). | Prefer when legacy MAXIM design reuse is required and higher supply current is acceptable. |
| TPS3808G15DBVR | 4.38 V threshold (±0.5%), adjustable delay (1.25 ms to 10 s), 1.1 µA quiescent current, SOT-23-6 package. | Requires external capacitor for timing; six-pin package increases footprint; superior accuracy but higher complexity. | Choose when programmable delay or ultra-low power (<2 µA) is critical and board space allows larger package. |
Compared with MAX809TRD2T and TPS3808G15DBVR, the ADM1811-10ARTZ-RL offers tighter threshold tolerance (±1.5% vs. ±2.5%/±0.5%), integrated pull-up (reducing BOM), and optimized 150 ms fixed delay-making it ideal for cost-sensitive, space-constrained 5 V microcontroller reset applications requiring minimal external components.
Availability
ADM1811-10ARTZ-RL is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical instrumentation requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for ADM1811-10ARTZ-RL 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, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADM181x series was designed specifically for robust, low-cost microprocessor reset supervision in space-constrained embedded systems-emphasizing precision threshold accuracy, fixed timing, and minimal external component count.
FAQ
What is the exact reset threshold voltage for ADM1811-10ARTZ-RL?
The ADM1811-10ARTZ-RL 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 ADM1811-10ARTZ-RL suitable for supervising standard 5 V supplies with ±3% regulation tolerance.
Does ADM1811-10ARTZ-RL require an external pull-up resistor on the RST pin?
No, ADM1811-10ARTZ-RL includes an internal 5.5 kΩ pull-up resistor on its open-drain RST output, eliminating the need for external components. This feature is explicitly documented in the "INTERNAL PULL-UP RESISTOR" section of the datasheet and applies only to ADM1811/ADM1816 variants-not to push-pull versions like ADM1810 or ADM1812.
What is the reset timeout duration of ADM1811-10ARTZ-RL, and is it adjustable?
The ADM1811-10ARTZ-RL provides a fixed 150 ms typical reset timeout (100–250 ms range) after VCC rises above the threshold. This delay is internally generated and not user-adjustable-ensuring consistent, reliable power-up sequencing without external capacitors or resistors, as confirmed in the "RESET ACTIVE TIME" specification table.
Can ADM1811-10ARTZ-RL monitor voltages other than 5 V?
ADM1811-10ARTZ-RL is specifically configured for 4.35 V threshold monitoring and is intended for 5 V supply supervision. While its supply voltage range (1.2–5.5 V) allows operation from lower rails, the trip point is fixed and unchangeable-so it cannot accurately supervise 3.3 V or 2.5 V supplies. For those, select ADM1816-10ARTZ-RL (2.88 V) or ADM1816-20ARTZ-RL (2.55 V).
Is ADM1811-10ARTZ-RL RoHS compliant and lead-free?
Yes, the "Z" suffix in ADM1811-10ARTZ-RL indicates full RoHS compliance and lead-free construction per JEDEC J-STD-609. The device uses matte tin lead finish and meets Analog Devices' green packaging standards, as confirmed in the Ordering Guide footnote "2 Z = RoHS Compliant Part."
ADM1811-10ARTZ-RL 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
ADM1811-10ARTZ-RL FAQ
1.How can I place an order for ADM1811-10ARTZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1811-10ARTZ-RL 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 ADM1811-10ARTZ-RL reliable?
The price and inventory of ADM1811-10ARTZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1811-10ARTZ-RL is usually 5 days.
3.What payment methods are accepted for ADM1811-10ARTZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1811-10ARTZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1811-10ARTZ-RL?
ADM1811-10ARTZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1811-10ARTZ-RL 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 ADM1811-10ARTZ-RL?
For technical support, including ADM1811-10ARTZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1811-10ARTZ-RL requirements.
6.How does Aetrix verify that ADM1811-10ARTZ-RL is sourced from the original manufacturer or authorized distributors?
All ADM1811-10ARTZ-RL 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 ADM1811-10ARTZ-RL meets industry standards.
7.What is the process for return or replacement of ADM1811-10ARTZ-RL?
All ADM1811-10ARTZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADM1811-10ARTZ-RL, 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 ADM1811-10ARTZ-RL part is unused and in its original packaging.
Return procedure for ADM1811-10ARTZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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