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Analog Devices Inc. ADM1816-5ART-REEL
- Part No.:
- ADM1816-5ART-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1816-5ART-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,484
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Product details
Overview
ADM1816-5ART-REEL from Analog Devices is a precision 3.06 V (typical) active-low open-drain microprocessor reset circuit in SOT-23 package, featuring internal 5.5 kΩ pull-up resistor, 150 ms reset timeout, and −40°C to +105°C operating range. It monitors 3.3 V/3 V/2.5 V supplies in embedded controllers, industrial PLCs, and automotive ECUs requiring reliable power-on initialization.
For engineers reviewing the ADM1816-5ART-REEL datasheet, ADM1816-5ART-REEL pinout, ADM1816-5ART-REEL application, or ADM1816-5ART-REEL equivalent, key selection criteria include trip point tolerance (±1.5% typical), ultra-low quiescent current (4–10 µA), open-drain compatibility with I²C-bus logic levels, and SC70/SOT-23 footprint interchangeability for layout flexibility.
Technical Context
The ADM1816-5ART-REEL implements a bandgap-based voltage reference with temperature-compensated comparator and 150 ms monostable delay circuit to ensure stable power-up sequencing. Its reset assertion remains active until VCC rises above 3.06 V (typ) and sustains for ≥150 ms after crossing threshold.
This device belongs to the ADM181x family optimized for low-voltage supply monitoring with open-drain output architecture. Unlike push-pull variants, it requires no external pull-up and supports direct interfacing with microcontroller reset inputs tolerant of open-drain signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.06 V typical (2.98–3.15 V min/max); precisely targets 3.3 V supply rail monitoring with margin for ripple and drift. |
| Reset Timeout | 150 ms typical (100–250 ms); guarantees safe microprocessor initialization window after power stabilization. |
| Supply Range | 1.2 V to 5.5 V; operates across wide input range while maintaining accurate threshold detection. |
| Quiescent Current | 4 µA at 3.6 V (TA = −40°C to +105°C); enables battery-backed or energy-constrained systems. |
| Output Type | Active-low open-drain with 5.5 kΩ internal pull-up; eliminates need for external resistor and simplifies PCB routing. |
| Temperature Range | −40°C to +105°C; qualified for industrial and automotive under-hood applications. |
| Package | SOT-23 (RT-3); 3-pin, 2.9 mm × 1.3 mm footprint compatible with high-density layouts. |
Pinout & Package
ADM1816-5ART-REEL uses a 3-lead SOT-23 (RT-3) package with JEDEC TO-236-AB compliance. Pin 1 is RST (active-low open-drain output), Pin 2 is VCC (monitored supply input), and Pin 3 is GND (0 V reference).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-low reset output | Drives low when VCC < 3.06 V; remains low for 150 ms after VCC exceeds threshold; open-drain structure allows wired-OR configuration. |
| VCC | Supply voltage input | Monitored rail input; powers internal circuitry and sets reference for threshold comparison. |
| GND | Ground reference | 0 V return path for all internal biasing and comparator operation; must be low-impedance connection. |
Key Features
| Feature | Design Value |
|---|---|
| Internal pull-up resistor | 5.5 kΩ typical (3.5–7.5 kΩ); eliminates external component, reduces BOM count, and ensures defined logic-high state during reset release. |
| Reset timeout accuracy | ±33% over temperature (100–250 ms); provides robust timing margin against capacitor aging and process variation. |
| Low supply current | 4 µA at 3.6 V over full temperature range; extends battery life in portable instrumentation and remote sensors. |
| Voltage threshold stability | ±1.5% typical over −40°C to +105°C; maintains precise trip point without calibration across harsh environments. |
| Open-drain interface | Compatible with 1.8 V to 5 V logic families; supports multi-drop reset bus architectures and level-shifting applications. |
Applications
| Industrial PLC Control | Automotive Body Controller |
|---|---|
|
Use Scenario: Power-on reset sequencing for ARM Cortex-M based programmable logic controllers in factory automation cabinets. IC Role / Device Role / Timing Role: Monitors 3.3 V I/O supply and asserts active-low reset to MCU until voltage stabilizes and holds for 150 ms. Use Value: Prevents firmware lockup during brown-out conditions by enforcing minimum reset duration independent of supply ramp rate. |
Use Scenario: Reset supervision for CAN-enabled body control modules exposed to automotive battery transients. IC Role / Device Role / Timing Role: Detects dips below 3.06 V on 3.3 V domain and holds reset for 150 ms to ensure EEPROM write completion before boot. Use Value: Guarantees deterministic startup after load-dump events, eliminating intermittent boot failures in field deployments. |
| Medical Sensor Hub | Smart Energy Meter |
|
Use Scenario: Power management in battery-powered wearable health monitors with ultra-low-power sleep modes. IC Role / Device Role / Timing Role: Provides reset signal to ultra-low-power MCU upon wake-up from deep sleep when regulated 3.3 V rail reasserts. Use Value: Enables sub-µA system standby current by eliminating external pull-up and leveraging internal 4 µA quiescent draw. |
Use Scenario: Supervision of isolated 3.3 V supply powering metrology ADC and real-time clock in utility-grade meters. IC Role / Device Role / Timing Role: Generates clean reset pulse only after 3.3 V rail settles within ±2% for ≥150 ms, preventing corrupted flash writes. Use Value: Meets IEC 62053-21 requirements for power-fail immunity by ensuring reset assertion during AC line dropout >100 ms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326T29D3+T | 2.93 V fixed threshold; 140 ms timeout; 1.8–5.5 V supply; 0.5 µA max current | Lower quiescent current but tighter threshold tolerance (±0.5%); no internal pull-up (requires external) | Select for battery-critical designs where 0.5 µA savings outweigh added BOM and layout complexity. |
| TPS3808G30DBVR | 3.0 V threshold; 200 ms timeout; 0.9–6.0 V supply; 2.5 µA typical current; push-pull output | Higher supply range and longer timeout; requires external pull-up for open-drain emulation | Choose when interfacing with legacy MCUs needing active-high reset or wider input voltage support beyond 5.5 V. |
Compared with ADM1816-5ART-REEL, MAX6326T29D3+T offers lower current but adds external component overhead, while TPS3808G30DBVR provides broader voltage range but lacks integrated pull-up-making ADM1816-5ART-REEL optimal for cost-sensitive, space-constrained 3.3 V systems.
Availability
ADM1816-5ART-REEL is available at Aetrix Electronics and suitable for industrial PLC control, automotive body controllers, and medical sensor hubs requiring stable component supply, RoHS-compliant packaging, and guaranteed long-term availability.
Supply support for ADM1816-5ART-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 product line delivers cost-effective, space-efficient reset supervisors targeting microprocessor-based systems where reliable power-on initialization and brown-out protection are critical.
FAQ
What is the exact reset threshold voltage for ADM1816-5ART-REEL?
The ADM1816-5ART-REEL has a nominal reset threshold of 3.06 V, with guaranteed limits of 2.98 V (minimum) and 3.15 V (maximum) across −40°C to +105°C. This value is specified in Table 1 of the Rev. F datasheet and applies specifically to the -5 variant, which is the designation used in ADM1816-5ART-REEL.
Does ADM1816-5ART-REEL require an external pull-up resistor?
No, ADM1816-5ART-REEL integrates a 5.5 kΩ internal pull-up resistor on the RST pin, as confirmed in Table 1 under "INTERNAL PULL-UP RESISTOR" (3.5–7.5 kΩ range). This eliminates the need for external components and simplifies design for open-drain reset interfaces.
What is the operating temperature range of ADM1816-5ART-REEL?
The ADM1816-5ART-REEL is rated for continuous operation from −40°C to +105°C, as stated in the Ordering Guide and Absolute Maximum Ratings table. This extended industrial temperature range supports deployment in automotive engine compartments and industrial control enclosures.
Can ADM1816-5ART-REEL be used with a manual reset button?
No-only ADM1813 and ADM1818 variants support manual push-button reset functionality, as explicitly noted in the "ADM1813 AND ADM1818" section of the datasheet. ADM1816-5ART-REEL lacks the internal circuitry for button debounce and timed reset extension.
What package type does ADM1816-5ART-REEL use?
ADM1816-5ART-REEL uses the 3-lead SOT-23 (RT-3) package, as indicated by the "RT" suffix in the part number and verified in the Ordering Guide (Page 9). Its dimensions are 2.90 mm × 1.30 mm × 1.02 mm, compliant with JEDEC TO-236-AB.
ADM1816-5ART-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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.06V
- 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
ADM1816-5ART-REEL FAQ
1.How can I place an order for ADM1816-5ART-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1816-5ART-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 ADM1816-5ART-REEL reliable?
The price and inventory of ADM1816-5ART-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1816-5ART-REEL is usually 5 days.
3.What payment methods are accepted for ADM1816-5ART-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1816-5ART-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1816-5ART-REEL?
ADM1816-5ART-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1816-5ART-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 ADM1816-5ART-REEL?
For technical support, including ADM1816-5ART-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1816-5ART-REEL requirements.
6.How does Aetrix verify that ADM1816-5ART-REEL is sourced from the original manufacturer or authorized distributors?
All ADM1816-5ART-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 ADM1816-5ART-REEL meets industry standards.
7.What is the process for return or replacement of ADM1816-5ART-REEL?
All ADM1816-5ART-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM1816-5ART-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 ADM1816-5ART-REEL part is unused and in its original packaging.
Return procedure for ADM1816-5ART-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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