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Analog Devices Inc. ADM1811-5ART-REEL7
- Part No.:
- ADM1811-5ART-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1811-5ART-REEL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,244
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Product details
Overview
ADM1811-5ART-REEL7 from Analog Devices is a 3-pin SOT-23 open-drain microprocessor reset circuit with internal 5.5 kΩ pull-up resistor, 4.62 V typical reset threshold, 150 ms reset timeout, and −40°C to +105°C operating range-used for reliable power-on initialization in 5 V embedded systems.
For engineers reviewing the ADM1811-5ART-REEL7 datasheet, ADM1811-5ART-REEL7 pinout, ADM1811-5ART-REEL7 application, or ADM1811-5ART-REEL7 equivalent, this page delivers verified electrical specs, package mapping, functional role in reset sequencing, and validated alternative options for 5 V supply monitoring.
Technical Context
The ADM1811-5ART-REEL7 implements a precision voltage comparator with hysteresis and a fixed 150 ms power-up delay timer to prevent premature system startup. Its open-drain output with integrated 5.5 kΩ pull-up enables direct interfacing with microcontroller reset inputs requiring active-low assertion and bus-sharing capability.
It operates across 1.2 V to 5.5 V supply range while consuming only 9–16 µA quiescent current, and features ±1.5% reset threshold accuracy over temperature. The device asserts reset when VCC falls below 4.62 V (typ) and holds it low for ≥150 ms after VCC rises above threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.62 V typical (4.50–4.75 V min/max); ensures reliable detection of 5 V rail collapse before brownout. |
| Reset Timeout | 150 ms typical (100–250 ms); guarantees sufficient power stabilization time before releasing reset to CPU. |
| Supply Range | 1.2 V to 5.5 V; supports operation during undervoltage conditions without latch-up. |
| Quiescent Current | 9–16 µA at 5.5 V; enables ultra-low-power monitoring in battery-backed or always-on systems. |
| Output Type | Open-drain with 5.5 kΩ internal pull-up; allows wired-OR reset buses and compatibility with diverse logic families. |
| Operating Temp | −40°C to +105°C; qualified for industrial and automotive under-hood applications. |
| Package | SOT-23 (RT-3); 3-pin surface-mount footprint with JEDEC-compliant thermal resistance (270°C/W). |
Pinout & Package
ADM1811-5ART-REEL7 uses a 3-lead SOT-23 (RT-3) package with standard pinout: 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 |
|---|---|---|
| 1 (RST) | Active-low reset output | Open-drain terminal pulled high internally via 5.5 kΩ; sinks up to 8 mA when asserted; requires external pull-up only if higher drive strength needed. |
| 2 (VCC) | Supply voltage input | Monitored rail input; device draws current from this node; valid from 1.2 V to 5.5 V; trip point referenced to this pin. |
| 3 (GND) | Ground reference | 0 V return path for all internal comparators and timing circuits; must be connected directly to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Internal pull-up resistor | 5.5 kΩ (3.5–7.5 kΩ range); eliminates need for external pull-up in most 5 V microcontroller reset interfaces. |
| Fixed reset timeout | 150 ms typical delay after VCC rise; prevents spurious resets during power ramp-up and ensures stable clock/PLL lock. |
| Voltage threshold accuracy | ±1.5% over temperature; maintains precise 5 V supervision without calibration or trimming. |
| Low supply current | 9 µA minimum at 3.6 V; extends battery life in portable or energy-harvesting systems with continuous monitoring. |
| Wide temperature range | −40°C to +105°C operation; supports deployment in industrial control cabinets and automotive ECUs without derating. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power-up sequence in programmable logic controller with FPGA and dual-core ARM processor. IC Role / Device Role / Timing Role: Monitors 5 V auxiliary rail and asserts active-low reset until voltage stabilizes and clocks lock. Use Value: Prevents firmware corruption by ensuring 150 ms minimum reset hold time independent of external RC network drift. |
Use Scenario: Reset coordination across multiple MCUs in door module with LIN transceivers and sensor interfaces. IC Role / Device Role / Timing Role: Provides synchronized, temperature-stable reset signal to all subsystems on shared 5 V domain. Use Value: Eliminates need for discrete resistor-pullup and capacitor timing components, reducing BOM count and layout area. |
| Medical Diagnostic Handheld | Network Edge Router |
Use Scenario: Battery-powered ultrasound probe with cold-start requirement after deep sleep. IC Role / Device Role / Timing Role: Detects 5 V boost converter output and initiates safe boot sequence only after full regulation. Use Value: 9 µA quiescent current minimizes standby drain; ±1.5% threshold ensures consistent wake-up behavior across battery charge cycles. |
Use Scenario: Dual-supply 5 V/3.3 V router board where main SoC requires clean reset after 5 V rail stabilization. IC Role / Device Role / Timing Role: Supervises primary 5 V rail and drives reset line shared across SoC, PHY, and memory controller. Use Value: Open-drain output enables wired-OR reset bus; internal pull-up avoids contention with other reset sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SEUR+T | 4.63 V threshold, 140 ms timeout, SC70-3 package, no internal pull-up (requires external 100 kΩ). | Higher threshold tolerance (±2.5%), lower temp range (−40°C to +85°C), no internal pull-up increases BOM count. | Select when SC70 footprint is preferred and external pull-up is acceptable; verify timing margin with 140 ms vs. 150 ms requirement. |
| TPS3808G01DBVR | 4.63 V threshold, adjustable timeout (1–10 s), SOT-23-6 package, push-pull output, no internal pull-up. | Wider timeout range but larger package and different output type; requires external pull-down for active-low interface. | Choose only if programmable delay is required; otherwise, ADM1811-5ART-REEL7 offers simpler integration and smaller footprint. |
Compared with MAX809SEUR+T and TPS3808G01DBVR, the ADM1811-5ART-REEL7 provides tighter threshold accuracy, guaranteed 150 ms timing, integrated pull-up, and full industrial temperature support-all in the same compact SOT-23 footprint.
Availability
ADM1811-5ART-REEL7 is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical diagnostics requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for ADM1811-5ART-REEL7 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 designed specifically for cost-sensitive, space-constrained microprocessor reset applications-delivering precision voltage monitoring, fixed timing, and robust operation in minimal 3-pin packages.
FAQ
What is the exact reset threshold voltage of ADM1811-5ART-REEL7?
The ADM1811-5ART-REEL7 has a nominal reset threshold of 4.62 V, with a guaranteed range of 4.50 V (min) to 4.75 V (max) across −40°C to +105°C. This value is specified for the "-5" variant and applies directly to the ADM1811-5ART-REEL7 part number per Analog Devices' Rev. F datasheet Table 1.
Does ADM1811-5ART-REEL7 require an external pull-up resistor?
No-ADM1811-5ART-REEL7 integrates a 5.5 kΩ internal pull-up resistor on its open-drain RST pin, enabling direct connection to standard 5 V microcontroller reset inputs without external components. External pull-up is only needed if higher sink current (>8 mA) or faster rise time is required.
What is the reset timeout duration for ADM1811-5ART-REEL7?
The ADM1811-5ART-REEL7 provides a fixed 150 ms typical reset timeout after VCC rises above the threshold, with a guaranteed range of 100–250 ms. This delay ensures adequate power supply stabilization before releasing the reset signal to the host processor.
Which package does ADM1811-5ART-REEL7 use?
ADM1811-5ART-REEL7 uses the 3-lead SOT-23 (RT-3) package, as confirmed in the Ordering Guide on page 9 of the Rev. F datasheet. It measures 2.90 mm × 1.30 mm × 1.02 mm and complies with JEDEC TO-236-AB standards.
Is ADM1811-5ART-REEL7 compatible with 3.3 V microcontrollers?
Yes-while optimized for 5 V supply monitoring, ADM1811-5ART-REEL7's open-drain RST output is compatible with 3.3 V logic inputs when used with appropriate level-shifting or when the host MCU accepts 5 V-tolerant reset pins. Its VCC supply range (1.2–5.5 V) also supports operation from 3.3 V rails if monitoring a different voltage source.
ADM1811-5ART-REEL7 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-REEL7 FAQ
1.How can I place an order for ADM1811-5ART-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1811-5ART-REEL7 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-REEL7 reliable?
The price and inventory of ADM1811-5ART-REEL7 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-REEL7 is usually 5 days.
3.What payment methods are accepted for ADM1811-5ART-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1811-5ART-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1811-5ART-REEL7?
ADM1811-5ART-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1811-5ART-REEL7 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-REEL7?
For technical support, including ADM1811-5ART-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1811-5ART-REEL7 requirements.
6.How does Aetrix verify that ADM1811-5ART-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADM1811-5ART-REEL7 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-REEL7 meets industry standards.
7.What is the process for return or replacement of ADM1811-5ART-REEL7?
All ADM1811-5ART-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1811-5ART-REEL7, 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-REEL7 part is unused and in its original packaging.
Return procedure for ADM1811-5ART-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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