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Analog Devices Inc. ADM1818-10ARTZ-RL7
- Part No.:
- ADM1818-10ARTZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1818-10ARTZ-RL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:12,500
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Product details
Overview
ADM1818-10ARTZ-RL7 from Analog Devices is a microprocessor reset circuit with open-drain output and internal 5.5 kΩ pull-up resistor, designed to monitor 3.3 V power supplies at a 2.88 V (typical) trip threshold. It delivers 150 ms reset timeout, supports manual push-button reset with 1 µs detect-to-RST latency, and operates across −40°C to +105°C in SOT-23 package for embedded control systems.
For engineers reviewing the ADM1818-10ARTZ-RL7 datasheet, ADM1818-10ARTZ-RL7 pinout, ADM1818-10ARTZ-RL7 application, or ADM1818-10ARTZ-RL7 equivalent, key selection criteria include reset threshold accuracy (±1.5% over temperature), ultra-low quiescent current (≤10 µA at 3.6 V), push-button compatibility, and guaranteed reset assertion during power-down transitions.
Technical Context
The ADM1818-10ARTZ-RL7 implements a precision voltage comparator with built-in hysteresis and a 150 ms monostable delay timer. Its internal reference ensures stable trip point performance across temperature, while the open-drain RST output with integrated pull-up eliminates external component requirements for standard microprocessor reset inputs.
This device belongs to the ADM181x family optimized for single-supply monitoring without external biasing. Unlike push-pull variants, its open-drain architecture enables wired-OR configurations and flexible logic-level interfacing-critical for mixed-voltage systems where reset signals must be shared across multiple domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.88 V typical (min 2.80 V, max 2.97 V); monitors 3.3 V supply with 13.6% undervoltage margin |
| Reset Timeout | 150 ms typical (100–250 ms range); ensures safe system initialization after power stabilization |
| Supply Range | 1.2 V to 5.5 V; supports operation down to 1.2 V while maintaining valid reset assertion |
| Quiescent Current | ≤10 µA at 3.6 V; enables battery-backed or low-power always-on monitoring |
| Output Type | Open-drain with 5.5 kΩ internal pull-up; eliminates need for external resistor in most MCU reset circuits |
| Push-Button Support | Detects >1 µs button press; asserts reset for 150 ms after release-enables hardware-initiated system recovery |
| Operating Temp | −40°C to +105°C; qualified for industrial and automotive under-hood environments |
Pinout & Package
ADM1818-10ARTZ-RL7 is housed in a 3-lead SOT-23 (RT-3) package, RoHS-compliant, with 1.3 mm × 2.9 mm footprint and 1.1 mm height. Pin 1 is RST, Pin 2 is VCC, Pin 3 is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-low open-drain reset output | Pulled low when VCC < 2.88 V (typ); floats high via internal 5.5 kΩ resistor when VCC ≥ threshold |
| VCC | Supply voltage input | Monitored rail; powers internal circuitry and defines reset trip point reference |
| GND | Ground reference | 0 V return path for comparator, timer, and output stage; must be low-impedance |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pull-up resistor | 5.5 kΩ ±30%; eliminates external component and PCB space for standard reset interface |
| Push-button reset support | 1 µs minimum press detection; enables field-serviceable hardware reset without firmware intervention |
| Guaranteed power-down reset | Asserts RST within 10 µs of VCC falling below threshold; prevents brownout-induced MCU lockup |
| Temperature-stable threshold | ±1.5% variation over −40°C to +105°C; avoids false resets in thermal cycling environments |
| Low supply current | 4 µA typical at 3.6 V; extends battery life in portable or energy-harvesting applications |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Monitors 3.3 V microcontroller supply in programmable logic controllers exposed to wide ambient temperature swings and EMI-rich factory floors. IC Role / Device Role / Timing Role: Voltage supervisor ensuring deterministic reset during cold start, hot restart, and transient voltage dips. Use Value: 150 ms timeout guarantees full power rail stabilization before firmware execution, preventing corrupted I/O initialization. | Use Scenario: Embedded in vehicle door modules to supervise 3.3 V domain powering CAN transceivers and window motor drivers. IC Role / Device Role / Timing Role: Reset generator with push-button capability for service-mode entry and fault recovery. Use Value: Internal 5.5 kΩ pull-up reduces BOM count and improves layout reliability versus discrete resistor solutions. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Ensures fail-safe restart of safety-critical ARM Cortex-M4 controller after power interruption or brownout. IC Role / Device Role / Timing Role: Supervisory watchdog with guaranteed power-down assertion and precise 2.88 V trip point for 3.3 V LDO output. Use Value: −40°C to +105°C rating supports operation inside sealed, thermally insulated enclosures without derating. | Use Scenario: Monitors isolated 3.3 V supply powering metrology ADC and secure bootloader in utility-grade meters. IC Role / Device Role / Timing Role: Low-current reset supervisor enabling >10-year battery backup operation during mains failure. Use Value: ≤10 µA quiescent current minimizes self-discharge of backup supercapacitors during extended outages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2T | 2.93 V reset threshold, 140 ms timeout, no internal pull-up (requires external resistor) | Lacks push-button reset support; requires additional PCB trace and 47 kΩ resistor | Choose if legacy design uses MAX809 footprint and external pull-up is already present |
| TPS3808G18DBVR | 1.8 V threshold, adjustable delay (via capacitor), 2.5 µA IQ, SOT-23-6 | Higher pin count, different package; supports programmable timeout but not push-button reset | Prefer for ultra-low-power designs needing <5 µA IQ and configurable timing, accepting layout redesign |
Compared with MAX809TRD2T and TPS3808G18DBVR, the ADM1818-10ARTZ-RL7 uniquely combines fixed 2.88 V threshold, integrated pull-up, push-button support, and industrial temperature range in a 3-pin SOT-23-reducing component count and qualification effort for 3.3 V system supervision.
Availability
ADM1818-10ARTZ-RL7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, medical infusion pumps, and smart energy meters requiring stable component supply with full RoHS compliance and extended temperature support.
Supply support for ADM1818-10ARTZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADM181x product line was engineered specifically for cost-sensitive, space-constrained microprocessor reset applications-emphasizing simplicity, reliability, and minimal external components across industrial and automotive environments.
FAQ
What is the exact reset threshold voltage for ADM1818-10ARTZ-RL7?
The ADM1818-10ARTZ-RL7 has a nominal reset threshold of 2.88 V, with guaranteed min/max values of 2.80 V and 2.97 V across −40°C to +105°C. This value is specified in Table 1 of the Rev. F datasheet and applies directly to the ADM1818-10ARTZ-RL7 variant, enabling reliable supervision of 3.3 V supplies with defined undervoltage margin.
Does ADM1818-10ARTZ-RL7 require an external pull-up resistor?
No, ADM1818-10ARTZ-RL7 includes an internal 5.5 kΩ pull-up resistor on the RST pin, eliminating the need for external components in standard microprocessor reset configurations. This feature is explicitly confirmed in Table 1 ("INTERNAL PULL-UP RESISTOR") and functional descriptions for ADM1813/ADM1818 in the Rev. F datasheet.
Can ADM1818-10ARTZ-RL7 be used with a manual push-button reset?
Yes, ADM1818-10ARTZ-RL7 supports manual push-button reset per the "ADM1813 AND ADM1818" section of the Rev. F datasheet. Connecting a switch between RST and GND pulls the output low; releasing it triggers a 150 ms reset pulse, with 1 µs minimum press duration required for detection.
What package type does ADM1818-10ARTZ-RL7 use?
ADM1818-10ARTZ-RL7 uses the 3-lead SOT-23 (RT-3) package, as confirmed in the Ordering Guide (Page 9) and Outline Dimensions (Page 8) of the Rev. F datasheet. The "RTZ" suffix denotes RoHS-compliant SOT-23 packaging, with JEDEC TO-236-AB compliance and 1.3 mm × 2.9 mm footprint.
What is the operating temperature range for ADM1818-10ARTZ-RL7?
The ADM1818-10ARTZ-RL7 is rated for −40°C to +105°C operation, matching the full industrial temperature range specified in the Ordering Guide and Absolute Maximum Ratings table of the Rev. F datasheet. This range is validated for continuous operation and applies to all electrical specifications unless otherwise noted.
ADM1818-10ARTZ-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:
- 2.88V
- 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
ADM1818-10ARTZ-RL7 FAQ
1.How can I place an order for ADM1818-10ARTZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1818-10ARTZ-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 ADM1818-10ARTZ-RL7 reliable?
The price and inventory of ADM1818-10ARTZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1818-10ARTZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADM1818-10ARTZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1818-10ARTZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1818-10ARTZ-RL7?
ADM1818-10ARTZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1818-10ARTZ-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 ADM1818-10ARTZ-RL7?
For technical support, including ADM1818-10ARTZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1818-10ARTZ-RL7 requirements.
6.How does Aetrix verify that ADM1818-10ARTZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADM1818-10ARTZ-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 ADM1818-10ARTZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADM1818-10ARTZ-RL7?
All ADM1818-10ARTZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1818-10ARTZ-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 ADM1818-10ARTZ-RL7 part is unused and in its original packaging.
Return procedure for ADM1818-10ARTZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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