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Analog Devices Inc. ADM1816-5ARTZ-RL7
- Part No.:
- ADM1816-5ARTZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1816-5ARTZ-RL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,542
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Product details
Overview
ADM1816-5ARTZ-RL7 from Analog Devices is a precision 3.06 V (typical) 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 in SOT-23 package. It monitors 3.3 V power rails in embedded controllers and ensures safe system initialization after power-on.
For engineers reviewing the ADM1816-5ARTZ-RL7 datasheet, ADM1816-5ARTZ-RL7 pinout, ADM1816-5ARTZ-RL7 application, or ADM1816-5ARTZ-RL7 equivalent, key selection criteria include trip point tolerance (±1.5% typical), low quiescent current (9–16 µA), open-drain output compatibility with I²C-bus logic levels, and SC70/SOT-23 footprint interchangeability.
Technical Context
The ADM1816-5ARTZ-RL7 implements a bandgap-based voltage reference with temperature-compensated comparator and 150 ms monostable delay circuit. Its reset assertion is triggered when VCC falls below 3.06 V (typical), with hysteresis of ~100 mV to prevent chatter during brownout recovery.
This device belongs to the ADM181x family optimized for space-constrained applications requiring guaranteed reset pulse width and no external components. It uses an open-drain RST output with integrated 5.5 kΩ pull-up, eliminating need for external resistor while maintaining compatibility with 3.3 V logic interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.06 V typical; precisely monitors 3.3 V supply rails with ±1.5% tolerance over full temperature range. |
| Reset Timeout | 150 ms typical; guarantees minimum reset pulse width for reliable microprocessor initialization. |
| Supply Range | 1.2 V to 5.5 V; supports operation across wide input voltages while monitoring only 3.06 V rail. |
| Quiescent Current | 9–16 µA at 5.5 V; enables ultra-low-power system monitoring without burdening supply. |
| Output Type | Open-drain with 5.5 kΩ internal pull-up; simplifies interface to 3.3 V logic without external components. |
| Operating Temp | −40°C to +105°C; qualified for industrial and automotive under-hood environments. |
| Package | SOT-23 (RT-3); 3-pin, 2.9 mm × 1.3 mm footprint compatible with high-density PCB layouts. |
Pinout & Package
ADM1816-5ARTZ-RL7 is housed in a RoHS-compliant 3-lead SOT-23 (RT-3) package with standard JEDEC TO-236-AB outline and 0.95 mm nominal height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-low open-drain reset output | Pulled low during reset condition; floats high (via internal 5.5 kΩ) otherwise-compatible with shared reset buses. |
| VCC | Supply voltage input | Monitored rail input; also powers internal circuitry-no separate bias supply required. |
| GND | Ground reference | 0 V return path for both monitor reference and output stage; must be low-impedance for accurate threshold tracking. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pull-up resistor | 5.5 kΩ internal pull-up eliminates external component count and layout area for 3.3 V systems. |
| Guaranteed reset timing | 150 ms typical active-time ensures all microprocessors meet minimum reset hold requirements. |
| Low temperature drift | Reset threshold variation < ±1.5% over −40°C to +105°C enables stable operation in harsh environments. |
| No external components | Self-contained reset function requires zero external passives-reduces BOM cost and design validation effort. |
| Wide supply range | Operates from 1.2 V to 5.5 V while monitoring fixed 3.06 V threshold-supports diverse host system architectures. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Monitors 3.3 V MCU supply in programmable logic controller operating in factory environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Active-low reset supervisor ensuring clean boot sequence after cold start or brownout events. Use Value: 150 ms guaranteed reset pulse prevents premature CPU release; internal pull-up avoids routing conflict on shared reset bus. | Use Scenario: Embedded in vehicle body control unit powering door lock, lighting, and window modules. IC Role / Device Role / Timing Role: Voltage monitor for 3.3 V domain supplying CAN transceiver and microcontroller peripherals. Use Value: −40°C to +105°C rating ensures reliability under hood; 3.06 V threshold matches 3.3 V LDO output with margin for ripple and load regulation. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Powers ARM Cortex-M based diagnostic instrument requiring fail-safe startup after battery insertion or AC reconnection. IC Role / Device Role / Timing Role: System-level reset generator synchronized to 3.3 V rail stabilization. Use Value: 9–16 µA quiescent current extends battery life; SOT-23 footprint saves space on compact PCBs. | Use Scenario: Used in utility-grade electricity meter with isolated power domains and strict EMC requirements. IC Role / Device Role / Timing Role: Dedicated reset source for metrology SoC, decoupled from main power sequencing. Use Value: Open-drain output allows wired-OR with other fault indicators; 1.2 V min supply enables operation during backup capacitor discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326T31D3+T | 3.08 V threshold, 200 ms timeout, 1.8–5.5 V supply, SC70-3 package | Higher timeout tolerance (±10%) and wider supply range but lacks internal pull-up | Select when longer reset pulse or broader supply compatibility is needed; requires external pull-up resistor. |
| TPS3808G33DBVR | 3.3 V threshold, 200 ms timeout, push-pull output, SOT-23-6 package | Different trip point (3.3 V vs. 3.06 V), higher quiescent current (12 µA), no internal pull-up | Choose for systems needing active-high reset or tighter 3.3 V rail monitoring; larger footprint and different pinout. |
Compared with MAX6326T31D3+T and TPS3808G33DBVR, the ADM1816-5ARTZ-RL7 offers tighter threshold accuracy (±1.5%), integrated pull-up for simplified 3.3 V interfacing, and identical SOT-23 footprint-making it optimal for cost-sensitive, space-constrained 3.3 V system resets.
Availability
ADM1816-5ARTZ-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 long-term lifecycle support.
Supply support for ADM1816-5ARTZ-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.
The ADM181x product line was designed specifically for reliable, low-cost microprocessor reset supervision in space- and power-constrained embedded systems-emphasizing accuracy, temperature stability, and minimal external component count.
FAQ
What is the exact reset threshold voltage of the ADM1816-5ARTZ-RL7?
The ADM1816-5ARTZ-RL7 has a nominal reset threshold of 3.06 V (typical), with a specified range of 2.98 V (min) to 3.15 V (max) over −40°C to +105°C. This value is factory-trimmed and documented in Table 1 of the Rev. F datasheet, making ADM1816-5ARTZ-RL7 suitable for precise 3.3 V supply monitoring where 3.06 V provides adequate margin against ripple and load regulation error.
Does the ADM1816-5ARTZ-RL7 require an external pull-up resistor?
No, the ADM1816-5ARTZ-RL7 integrates a 5.5 kΩ internal pull-up resistor on its open-drain RST output, as confirmed in Table 1 (Internal Pull-Up Resistor section) and Figure 14 of the datasheet. This eliminates the need for external components when interfacing with 3.3 V logic, reducing BOM count and PCB area-directly enabling drop-in use in SOT-23 footprints.
What is the reset timeout duration of the ADM1816-5ARTZ-RL7 and how is it implemented?
The ADM1816-5ARTZ-RL7 provides a guaranteed 150 ms (typical) reset active time, with a specified range of 100–250 ms. This is generated by an internal monostable circuit triggered upon VCC crossing the threshold, independent of external capacitors. The timing is fully integrated and factory-characterized across temperature, ensuring consistent behavior without design iteration.
Can the ADM1816-5ARTZ-RL7 be used to monitor a 5 V supply?
No-the ADM1816-5ARTZ-RL7 is configured for 3.06 V threshold monitoring and is not rated for direct 5 V rail supervision. For 5 V applications, Analog Devices specifies the ADM1810–ADM1813 series (e.g., ADM1811-5ARTZ-RL7 with 4.62 V threshold). Using ADM1816-5ARTZ-RL7 on 5 V would result in continuous reset assertion due to VCC exceeding its trip point.
Is the ADM1816-5ARTZ-RL7 RoHS compliant and what does the 'Z' suffix indicate?
Yes, the 'Z' in ADM1816-5ARTZ-RL7 denotes RoHS compliance per Analog Devices' ordering guide footnote 2. The part meets EU Directive 2011/65/EU and is lead-free with NiPdAu terminal finish. Full compliance documentation-including test reports and material declarations-is available via Analog Devices' product page for ADM1816-5ARTZ-RL7.
ADM1816-5ARTZ-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:
- 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
ADM1816-5ARTZ-RL7 FAQ
1.How can I place an order for ADM1816-5ARTZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1816-5ARTZ-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 ADM1816-5ARTZ-RL7 reliable?
The price and inventory of ADM1816-5ARTZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1816-5ARTZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADM1816-5ARTZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1816-5ARTZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1816-5ARTZ-RL7?
ADM1816-5ARTZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1816-5ARTZ-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 ADM1816-5ARTZ-RL7?
For technical support, including ADM1816-5ARTZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1816-5ARTZ-RL7 requirements.
6.How does Aetrix verify that ADM1816-5ARTZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADM1816-5ARTZ-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 ADM1816-5ARTZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADM1816-5ARTZ-RL7?
All ADM1816-5ARTZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1816-5ARTZ-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 ADM1816-5ARTZ-RL7 part is unused and in its original packaging.
Return procedure for ADM1816-5ARTZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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