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Analog Devices Inc. ADM1811-10ARTZ-RL7
- Part No.:
- ADM1811-10ARTZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1811-10ARTZ-RL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,840
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Product details
Overview
ADM1811-10ARTZ-RL7 from Analog Devices is a precision 4.35 V 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, used for reliable power-on initialization in 5 V microcontroller systems.
For engineers reviewing the ADM1811-10ARTZ-RL7 datasheet, ADM1811-10ARTZ-RL7 pinout, ADM1811-10ARTZ-RL7 application, or ADM1811-10ARTZ-RL7 equivalent, this page delivers verified specifications, package mapping, functional alternatives, and design-critical timing behavior for industrial-grade embedded reset supervision.
Technical Context
The ADM1811-10ARTZ-RL7 implements a voltage comparator with hysteresis and a fixed 150 ms power-up delay timer to prevent premature system release during supply ramp-up. Its open-drain output with integrated 5.5 kΩ pull-up eliminates external components while ensuring compatibility with standard logic-level reset inputs.
It monitors VCC continuously and asserts RST low when VCC falls below 4.25 V (min) or rises above 4.49 V (max), with typical trip at 4.35 V. Reset remains active for ≥100 ms after VCC recovers, meeting JEDEC JESD84-A41 requirements for safe microprocessor boot sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.35 V typical (4.25 V min / 4.49 V max); ensures reliable detection of 5 V supply brownout without false triggering. |
| Reset Timeout | 150 ms typical (100–250 ms range); guarantees sufficient power stabilization before releasing microprocessor reset. |
| Supply Range | 1.2 V to 5.5 V; supports operation across wide input conditions while monitoring 5 V rails. |
| Quiescent Current | 4 µA at 3.6 V (10 µA max); enables ultra-low-power supervision 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 resistors. |
| Operating Temp | −40°C to +105°C; qualified for automotive under-hood, industrial control, and extended-temperature embedded applications. |
| Package | SOT-23 (RT-3); 3-pin surface-mount footprint compatible with high-density PCB layouts and automated assembly. |
Pinout & Package
ADM1811-10ARTZ-RL7 uses a 3-lead SOT-23 (RT-3) package with JEDEC TO-236-AB compliance, 2.90 mm × 1.30 mm body size, and 0.95 mm height - optimized for space-constrained designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RST) | Active-low open-drain reset output | Drives low during reset condition; floats high otherwise, pulled up internally to VCC via 5.5 kΩ resistor. |
| 2 (VCC) | Supply voltage input | Monitored rail input; also powers internal circuitry - must be stable within 1.2 V to 5.5 V range. |
| 3 (GND) | Ground reference | 0 V return path for all internal comparators, timers, and output stage - requires low-impedance connection. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pull-up resistor | 5.5 kΩ ±30% internal pull-up eliminates need for external component and reduces BOM count. |
| Fixed 150 ms reset timeout | Guarantees minimum reset assertion time independent of external RC networks - improves design reproducibility. |
| Low quiescent current | 4 µA at 3.6 V enables use in always-on supervisory circuits without compromising system standby power. |
| Wide temperature range | −40°C to +105°C operation supports deployment in harsh environments including automotive engine control units. |
| JEDEC-compliant SOT-23 | RT-3 package ensures compatibility with standard pick-and-place equipment and reflow profiles. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power sequencing during cold crank or battery voltage sag in 12 V–5 V DC/DC converted systems. IC Role / Device Role / Timing Role: Monitors 5 V logic rail and holds MCU in reset until voltage stabilizes above 4.25 V for ≥150 ms. Use Value: Prevents firmware corruption during transient undervoltage events common in vehicle start-stop cycles. |
Use Scenario: Supervising microcontroller startup after ignition switch closure in cabin electronics. IC Role / Device Role / Timing Role: Provides deterministic reset pulse synchronized to 5 V supply ramp, rejecting noise spikes <10 µs. Use Value: Eliminates need for external RC network, reducing layout sensitivity and improving ESD robustness. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Ensuring clean boot after battery insertion or hot-swap of rechargeable Li-ion packs. IC Role / Device Role / Timing Role: Detects VCC rise above 4.35 V threshold and asserts RST low for 150 ms before release. Use Value: Guarantees full memory initialization and peripheral configuration before application code execution. |
Use Scenario: Reliable reset generation during AC line dropout or backup capacitor discharge in metering SoCs. IC Role / Device Role / Timing Role: Acts as primary supervisor for 5 V digital core, interfacing directly to reset pin of metrology processor. Use Value: Internal pull-up enables direct connection to CMOS reset input - no level-shifting or discrete pull-up required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor with reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326UT43D3+T | 4.3 V threshold, 200 ms timeout, 1.8–5.5 V supply, SC70-3 package | Higher timeout tolerance (±10%) vs. ADM1811-10ARTZ-RL7's ±33%; identical open-drain output | Select for tighter timeout consistency in high-reliability metering where 150 ms variation is unacceptable. |
| TPS3808G12DBVR | 4.3 V threshold, 200 ms timeout, push-pull active-low output, SOT-23-6 package | Requires external pull-up for open-drain emulation; larger footprint and higher quiescent current (12 µA) | Choose only if system demands push-pull drive strength >8 mA sink capability unavailable in ADM1811 series. |
Compared with MAX6326UT43D3+T and TPS3808G12DBVR, the ADM1811-10ARTZ-RL7 offers lower quiescent current, tighter trip accuracy (±0.12 V), and integrated pull-up - making it optimal for cost-sensitive, space-constrained 5 V microcontroller reset applications where 150 ms timing is acceptable.
Availability
ADM1811-10ARTZ-RL7 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 and RoHS-compliant sourcing.
Supply support for ADM1811-10ARTZ-RL7 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-effective, space-efficient microprocessor reset supervision in embedded systems requiring guaranteed power-on reset timing and robust voltage monitoring - not general-purpose voltage detection.
FAQ
What is the exact reset threshold voltage of ADM1811-10ARTZ-RL7?
The ADM1811-10ARTZ-RL7 has a nominal reset threshold of 4.35 V, with guaranteed minimum and maximum values of 4.25 V and 4.49 V respectively over the full −40°C to +105°C temperature range. This is confirmed in Table 1 of the Rev. F datasheet under "VCC TRIP POINT" for the -10 variant.
Does ADM1811-10ARTZ-RL7 require an external pull-up resistor?
No, ADM1811-10ARTZ-RL7 does not require an external pull-up resistor. It integrates a 5.5 kΩ internal pull-up on the RST pin, explicitly documented in the "INTERNAL PULL-UP RESISTOR" section of the datasheet for ADM1811/ADM1816 variants.
What is the reset timeout duration of ADM1811-10ARTZ-RL7?
The ADM1811-10ARTZ-RL7 provides a fixed reset timeout of 150 ms typical (100–250 ms range) from VCC crossing the threshold until RST deassertion. This is specified in the "RESET ACTIVE TIME" row of Table 1 and validated in Figure 6 ("Power-Up Reset Timeout vs. Temperature").
Which package type does ADM1811-10ARTZ-RL7 use?
ADM1811-10ARTZ-RL7 uses the 3-lead SOT-23 (RT-3) package, as indicated by the "RT-3 (SOT-23)" entry in the Ordering Guide for model ADM1811-10ARTZ-RL7 and confirmed in Figure 15 of the datasheet.
Is ADM1811-10ARTZ-RL7 RoHS compliant?
Yes, ADM1811-10ARTZ-RL7 is RoHS compliant. The "Z" suffix in the part number denotes RoHS compliance per the Ordering Guide footnote "2 Z = RoHS Compliant Part", and the device meets EU Directive 2011/65/EU requirements.
ADM1811-10ARTZ-RL7 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:
- 4.35V
- 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-RL7 FAQ
1.How can I place an order for ADM1811-10ARTZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1811-10ARTZ-RL7 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-RL7 reliable?
The price and inventory of ADM1811-10ARTZ-RL7 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-RL7 is usually 5 days.
3.What payment methods are accepted for ADM1811-10ARTZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1811-10ARTZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1811-10ARTZ-RL7?
ADM1811-10ARTZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1811-10ARTZ-RL7 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-RL7?
For technical support, including ADM1811-10ARTZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1811-10ARTZ-RL7 requirements.
6.How does Aetrix verify that ADM1811-10ARTZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADM1811-10ARTZ-RL7 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-RL7 meets industry standards.
7.What is the process for return or replacement of ADM1811-10ARTZ-RL7?
All ADM1811-10ARTZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1811-10ARTZ-RL7, 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-RL7 part is unused and in its original packaging.
Return procedure for ADM1811-10ARTZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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