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Analog Devices Inc. ADM1815-5ARTZ-REEL
- Part No.:
- ADM1815-5ARTZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1815-5ARTZ-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,286
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Product details
Overview
ADM1815-5ARTZ-REEL from Analog Devices is an active-low push-pull microprocessor reset circuit in SOT-23 package, monitoring 3.06 V (typical) supply voltage with 150 ms reset timeout, ±1.5% trip accuracy over −40°C to +105°C, and 9–16 µA supply current - used for safe power-on initialization in embedded controllers and industrial microprocessor systems.
For engineers reviewing the ADM1815-5ARTZ-REEL datasheet, ADM1815-5ARTZ-REEL pinout, ADM1815-5ARTZ-REEL application, or ADM1815-5ARTZ-REEL equivalent, key selection criteria include reset threshold tolerance, push-pull output drive capability, temperature range compliance, and SOT-23 footprint compatibility with space-constrained PCB layouts.
Technical Context
The ADM1815-5ARTZ-REEL integrates a precision voltage reference, comparator, and 150 ms delay timer to ensure reliable power-up sequencing. Its active-low push-pull output drives microprocessor RESET inputs directly without external pull-up resistors.
It operates across full industrial temperature range (−40°C to +105°C) with supply voltage range of 1.2 V to 5.5 V, and features low quiescent current (9 µA min at 3.6 V), enabling use in battery-backed and always-on systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.06 V typical (2.98–3.15 V range); ensures stable detection of 3.3 V rail brownout before system corruption. |
| Reset Timeout | 150 ms typical (100–250 ms); guarantees sufficient power stabilization time before releasing processor reset. |
| Supply Current | 9–16 µA at 5.5 V; enables ultra-low-power operation in standby or backup modes. |
| Output Type | Active-low push-pull; eliminates need for external pull-up and supports direct interface to most µP RESET pins. |
| Operating Temp | −40°C to +105°C; qualified for industrial and automotive under-hood applications. |
| Package | SOT-23 (RT-3); 3-pin, surface-mount, JEDEC-compliant footprint with 2.9 mm × 1.3 mm body size. |
Pinout & Package
ADM1815-5ARTZ-REEL uses a 3-lead SOT-23 (RT-3) package with standard pinout: Pin 1 = RST (active-low reset output), Pin 2 = VCC (monitored supply input), Pin 3 = GND (ground reference).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RST) | Active-low reset output | Drives low during undervoltage condition and for 150 ms after VCC rises above threshold; push-pull stage sinks up to 8 mA or sources 350 µA. |
| 2 (VCC) | Supply voltage input | Monitored rail input; device operates from 1.2 V to 5.5 V and detects drop below 3.06 V (typ) with ±1.5% accuracy. |
| 3 (GND) | Ground reference | 0 V return path for internal reference and output stage; must be connected to system ground plane for accurate threshold tracking. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed 150 ms reset timeout | Ensures robust power supply stabilization before system release - no external timing components required. |
| ±1.5% reset threshold accuracy | Maintains tight trip point over full temperature and voltage range, preventing premature or delayed resets. |
| Push-pull output stage | Eliminates external pull-up resistor, reduces BOM count, and improves noise immunity vs. open-drain alternatives. |
| Low 9 µA quiescent current | Supports long-term battery operation in backup monitoring circuits and energy-sensitive designs. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power-on reset sequencing for ARM-based controller managing I/O expansion and fieldbus communication. IC Role / Device Role / Timing Role: Monitors 3.3 V core supply and asserts active-low reset until voltage stabilizes for ≥150 ms. Use Value: Prevents firmware lockup during cold start by enforcing minimum power ramp time before CPU execution begins. | Use Scenario: Reset supervision for microcontroller in door module handling window lift, mirror control, and LED status indicators. IC Role / Device Role / Timing Role: Active-low push-pull output directly interfaces to MCU RESET pin without external components. Use Value: Eliminates pull-up resistor and saves PCB area in compact, thermally constrained modules operating at −40°C to +105°C. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Battery-backed power management during main supply transitions in portable ultrasound frontend. IC Role / Device Role / Timing Role: Detects 3.3 V rail collapse and holds reset for 150 ms to preserve SRAM state and enable graceful shutdown. Use Value: Low 9 µA supply current extends backup runtime while maintaining precise reset timing integrity. | Use Scenario: Supervision of isolated 3.3 V logic rail powering metrology SoC and RF transceiver in DIN-rail meter. IC Role / Device Role / Timing Role: Monitors regulated supply derived from AC/DC converter; trip point matched to 3.3 V nominal with ±1.5% tolerance. Use Value: Ensures deterministic boot behavior across wide temperature swings and line transients per IEC 62053-21 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2T1G | 3.08 V reset threshold (min 3.00 V), 140 ms timeout, SOT-23-3, active-low open-drain output | Requires external pull-up resistor; lower drive strength (100 µA sink) limits noise margin in noisy environments | Select when cost sensitivity outweighs need for push-pull drive and tighter threshold tolerance. |
| TPS3808G30DBVR | 3.0 V threshold (±0.5%), 200 ms timeout, SOT-23-6, active-low push-pull, 1.2 µA quiescent current | Larger 6-pin package increases layout area; higher accuracy but longer timeout may delay boot in time-critical systems | Prefer for ultra-low-power battery applications where 200 ms delay is acceptable and 0.5% threshold precision is mandatory. |
Compared with MAX809TRD2T1G and TPS3808G30DBVR, the ADM1815-5ARTZ-REEL offers optimal balance of push-pull drive, 3.06 V threshold accuracy, 150 ms timing, and SOT-23-3 footprint - making it ideal for industrial and automotive designs requiring direct µP interface and minimal BOM overhead.
Availability
ADM1815-5ARTZ-REEL is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body electronics, medical handheld diagnostics, and smart energy meters requiring stable component supply and RoHS-compliant packaging.
Supply support for ADM1815-5ARTZ-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.
The ADM181x series was designed specifically for reliable, low-cost microprocessor reset supervision in space- and power-constrained embedded systems - emphasizing precision threshold detection, guaranteed timeout, and direct µP interface capability.
FAQ
What is the exact reset threshold voltage for ADM1815-5ARTZ-REEL?
The ADM1815-5ARTZ-REEL has a nominal reset threshold of 3.06 V (typical), with a guaranteed range of 2.98 V to 3.15 V across −40°C to +105°C. This value is factory-trimmed and specified in Table 1 of the Rev. F datasheet, ensuring consistent detection of 3.3 V supply droop without false triggering.
Does ADM1815-5ARTZ-REEL require an external pull-up resistor on the RST pin?
No, ADM1815-5ARTZ-REEL does not require an external pull-up resistor. It features an active-low push-pull output stage capable of sourcing 350 µA and sinking 8 mA, allowing direct connection to microprocessor RESET inputs without additional components - unlike open-drain alternatives such as ADM1811 or MAX809.
What is the operating temperature range for ADM1815-5ARTZ-REEL?
The ADM1815-5ARTZ-REEL is rated for operation from −40°C to +105°C, fully qualified for industrial and extended-temperature automotive applications. This range is confirmed in the Ordering Guide (Page 9) and Absolute Maximum Ratings (Table 2), with performance specifications guaranteed across the entire span.
Can ADM1815-5ARTZ-REEL monitor a 5 V supply?
No, ADM1815-5ARTZ-REEL is configured for 3.06 V threshold and is intended for 3.3 V supply monitoring. For 5 V applications, Analog Devices specifies the ADM1810-5 or ADM1812-5 variants. Using ADM1815-5ARTZ-REEL on 5 V would result in continuous reset assertion due to overvoltage beyond its trip point.
Is ADM1815-5ARTZ-REEL RoHS compliant and lead-free?
Yes, ADM1815-5ARTZ-REEL is RoHS compliant and lead-free. The "Z" suffix in the part number explicitly denotes RoHS compliance per Analog Devices' ordering guide (Page 12, footnote 2), and the device meets JEDEC J-STD-020 moisture sensitivity level 1 requirements for reflow soldering.
ADM1815-5ARTZ-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:
- Push-Pull, Totem Pole
- 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
ADM1815-5ARTZ-REEL FAQ
1.How can I place an order for ADM1815-5ARTZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1815-5ARTZ-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 ADM1815-5ARTZ-REEL reliable?
The price and inventory of ADM1815-5ARTZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1815-5ARTZ-REEL is usually 5 days.
3.What payment methods are accepted for ADM1815-5ARTZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1815-5ARTZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1815-5ARTZ-REEL?
ADM1815-5ARTZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1815-5ARTZ-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 ADM1815-5ARTZ-REEL?
For technical support, including ADM1815-5ARTZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1815-5ARTZ-REEL requirements.
6.How does Aetrix verify that ADM1815-5ARTZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADM1815-5ARTZ-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 ADM1815-5ARTZ-REEL meets industry standards.
7.What is the process for return or replacement of ADM1815-5ARTZ-REEL?
All ADM1815-5ARTZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM1815-5ARTZ-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 ADM1815-5ARTZ-REEL part is unused and in its original packaging.
Return procedure for ADM1815-5ARTZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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