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Analog Devices Inc. ADM1816-5AKSZ-RL7
- Part No.:
- ADM1816-5AKSZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ADM1816-5AKSZ-RL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,420
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Product details
Overview
ADM1816-5AKSZ-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, used for reliable power-on initialization of 3.3 V embedded systems.
For engineers reviewing the ADM1816-5AKSZ-RL7 datasheet, ADM1816-5AKSZ-RL7 pinout, ADM1816-5AKSZ-RL7 application, or ADM1816-5AKSZ-RL7 equivalent, this page delivers verified functional specs, SC70 package details, reset timing behavior, and validated alternative options for industrial and automotive power monitoring designs.
Technical Context
The ADM1816-5AKSZ-RL7 implements a bandgap-based voltage reference with comparator hysteresis and a fixed 150 ms power-up delay timer. Its open-drain RST output with integrated 5.5 kΩ pull-up enables direct connection to microcontroller reset inputs without external components.
It operates across 1.2 V to 5.5 V supply range, draws only 4–10 µA at 3.6 V, and asserts reset when VCC falls below 3.06 V (typical), holding low for ≥150 ms after VCC rises above threshold to ensure stable system boot.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.06 V typical (2.98–3.15 V min/max); monitors 3.3 V supplies with margin against brownout. |
| Reset Timeout | 150 ms typical (100–250 ms min/max); guarantees safe CPU initialization window after power stabilization. |
| Supply Range | 1.2 V to 5.5 V; supports wide-input operation including battery-backed or multi-rail systems. |
| Quiescent Current | 4 µA typical at 3.6 V; enables ultra-low-power operation in always-on monitoring circuits. |
| Output Type | Open-drain with 5.5 kΩ internal pull-up; eliminates need for external resistor and simplifies PCB layout. |
| Package | SC70-3 (KS-3); 2.2 mm × 1.35 mm footprint, suitable for space-constrained embedded modules. |
| Operating Temp | −40°C to +105°C; qualified for industrial and under-hood automotive environments. |
Pinout & Package
ADM1816-5AKSZ-RL7 uses a 3-lead SC70 (KS-3) package with 0.65 mm lead pitch and coplanarity ≤0.10 mm. Pin 1 = VCC, Pin 2 = GND, Pin 3 = RST (active-low open-drain).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 1) | Supply Input | Monitored voltage rail; device draws current and compares against internal reference. |
| GND (Pin 2) | Ground Reference | 0 V return path for all internal circuitry and reset output sink current. |
| RST (Pin 3) | Active-Low Reset Output | Open-drain output pulled low during reset; floats high via internal 5.5 kΩ resistor when inactive. |
Key Features
| Feature | Design Value |
|---|---|
| Internal Pull-Up Resistor | 5.5 kΩ ±20%; eliminates external component and reduces BOM count in reset networks. |
| Fixed Reset Timeout | 150 ms typical delay ensures sufficient time for power supply settling before releasing reset. |
| Low Supply Current | 4 µA at 3.6 V enables use in battery-powered or energy-sensitive applications. |
| Wide Temperature Range | −40°C to +105°C operation supports deployment in harsh industrial and automotive environments. |
| SC70 Package | 2.2 mm × 1.35 mm footprint saves board space versus SOT-23 while maintaining compatibility with standard pick-and-place equipment. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power sequencing in programmable logic controllers where 3.3 V I/O rails must stabilize before FPGA or MCU initialization. IC Role / Device Role / Timing Role: Monitors 3.3 V supply and asserts active-low reset for ≥150 ms until voltage exceeds 3.06 V and remains stable. Use Value: Prevents spurious startup due to slow-rising or noisy 3.3 V rail, eliminating firmware lockups during cold start. | Use Scenario: Reset supervision for microcontrollers managing door locks, lighting, and sensors in vehicle body electronics. IC Role / Device Role / Timing Role: Provides guaranteed 150 ms reset hold time after 3.3 V supply reaches valid level, meeting ISO 16750-2 cold-cranking requirements. Use Value: Ensures deterministic boot sequence despite battery voltage sag during engine cranking. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Battery-backed 3.3 V domain in portable ultrasound or ECG devices requiring fail-safe power-on reset. IC Role / Device Role / Timing Role: Detects brownout on main 3.3 V rail and holds reset low until recovery, then enforces 150 ms timeout before release. Use Value: Avoids corrupted memory state or partial peripheral initialization during intermittent power loss. | Use Scenario: Monitoring auxiliary 3.3 V supply powering metrology ICs and secure MCU in utility-grade electricity meters. IC Role / Device Role / Timing Role: Generates clean, glitch-free reset pulse synchronized to 3.3 V rail stability with no external RC network. Use Value: Eliminates timing uncertainty from discrete RC reset circuits, improving long-term calibration reliability. |
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 |
|---|---|---|---|
| MAX809SEUR+T | 3.08 V reset threshold, SOT-23-3 package, 140 ms timeout, 1.2–5.5 V supply range. | No internal pull-up; requires external resistor for open-drain interface. | Select when SOT-23 footprint is preferred and external pull-up is acceptable. |
| TPS3808G33DBVR | 3.3 V threshold, adjustable delay (0.5–10 s), 1.2–6.8 V supply, higher quiescent current (12 µA). | Programmable delay and tighter threshold tolerance (±0.5%), but larger SOT-23-6 package. | Select when longer, configurable reset timeout or tighter accuracy is required. |
Compared with MAX809SEUR+T and TPS3808G33DBVR, ADM1816-5AKSZ-RL7 offers integrated pull-up and SC70 size for minimal footprint, while delivering precise 3.06 V trip point and industry-grade temperature performance-ideal for compact, cost-sensitive 3.3 V system supervision.
Availability
ADM1816-5AKSZ-RL7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, medical handheld diagnostics, and smart energy metering requiring stable component supply and RoHS-compliant packaging.
Supply support for ADM1816-5AKSZ-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 series was designed specifically for robust, low-cost microprocessor reset supervision in space- and power-constrained embedded systems, emphasizing reliability over wide temperature ranges and simplified integration.
FAQ
What is the exact reset threshold voltage of ADM1816-5AKSZ-RL7?
The ADM1816-5AKSZ-RL7 has a nominal reset threshold of 3.06 V (typical), with guaranteed minimum and maximum values of 2.98 V and 3.15 V respectively across −40°C to +105°C. This value is factory-trimmed and specified in Table 1 of the Rev. F datasheet.
Does ADM1816-5AKSZ-RL7 require an external pull-up resistor?
No, ADM1816-5AKSZ-RL7 includes an internal 5.5 kΩ pull-up resistor on the RST pin, enabling direct connection to microcontroller reset inputs without external components. This is confirmed in Table 1 (Internal Pull-Up Resistor) and Figure 14 of the datasheet.
What is the reset timeout duration for ADM1816-5AKSZ-RL7?
The ADM1816-5AKSZ-RL7 provides a fixed reset active time of 150 ms (typical), with a guaranteed range of 100 ms to 250 ms. This delay begins when VCC rises above the reset threshold and ensures safe system initialization after power stabilization.
Which package type does ADM1816-5AKSZ-RL7 use?
ADM1816-5AKSZ-RL7 uses the SC70-3 (KS-3) package: a 3-lead, 2.2 mm × 1.35 mm surface-mount outline compliant with EIAJ SC70 standards, as documented in Figure 16 and the Ordering Guide on page 9 of the Rev. F datasheet.
Can ADM1816-5AKSZ-RL7 be used for 5 V supply monitoring?
No, ADM1816-5AKSZ-RL7 is optimized for 3.3 V supply monitoring with a 3.06 V threshold. For 5 V systems, Analog Devices specifies ADM1810–ADM1813 variants (e.g., ADM1811-5AKSZ-RL7) with 4.62 V thresholds - confirmed in Table 1 and the Ordering Guide.
ADM1816-5AKSZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- 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:
- SC-70-3
ADM1816-5AKSZ-RL7 FAQ
1.How can I place an order for ADM1816-5AKSZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1816-5AKSZ-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 ADM1816-5AKSZ-RL7 reliable?
The price and inventory of ADM1816-5AKSZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1816-5AKSZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADM1816-5AKSZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1816-5AKSZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1816-5AKSZ-RL7?
ADM1816-5AKSZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1816-5AKSZ-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 ADM1816-5AKSZ-RL7?
For technical support, including ADM1816-5AKSZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1816-5AKSZ-RL7 requirements.
6.How does Aetrix verify that ADM1816-5AKSZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADM1816-5AKSZ-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 ADM1816-5AKSZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADM1816-5AKSZ-RL7?
All ADM1816-5AKSZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1816-5AKSZ-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 ADM1816-5AKSZ-RL7 part is unused and in its original packaging.
Return procedure for ADM1816-5AKSZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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