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Analog Devices Inc. ADM1816-5ART-REEL7
- Part No.:
- ADM1816-5ART-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1816-5ART-REEL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,772
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Product details
Overview
ADM1816-5ART-REEL7 from Analog Devices is a precision 3.06 V (typical) 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 operation - used for reliable power-on initialization of 3.3 V embedded systems.
For engineers reviewing the ADM1816-5ART-REEL7 datasheet, ADM1816-5ART-REEL7 pinout, ADM1816-5ART-REEL7 application, or ADM1816-5ART-REEL7 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 ADM1816-5ART-REEL7 implements a bandgap-based voltage reference comparator with hysteresis and a fixed 150 ms power-up delay timer. Its open-drain output with integrated 5.5 kΩ pull-up eliminates external components when interfacing with microcontroller reset inputs requiring active-low assertion.
It operates across full industrial temperature range (−40°C to +105°C) with supply voltage range 1.2 V to 5.5 V, and guarantees reset assertion during VCC fall below 3.06 V (typical) with 10 µs response time and no false triggering under transient overvoltage up to 200 mV overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.06 V typical (2.98–3.15 V min/max); precisely monitors 3.3 V supply rails for safe boot sequence initiation. |
| Reset Timeout | 150 ms typical (100–250 ms); ensures stable power rail before releasing microprocessor from reset state. |
| Supply Current | 9–16 µA at VCC = 5.5 V; enables ultra-low-power operation in battery-backed or energy-constrained systems. |
| Output Type | Open-drain with 5.5 kΩ internal pull-up; directly interfaces with standard CMOS/TTL reset inputs without external resistor. |
| Operating Temp | −40°C to +105°C; qualified for automotive under-hood, industrial control, and harsh-environment applications. |
| VCC Range | 1.2 V to 5.5 V; supports wide input supply range while maintaining accurate threshold detection. |
| Reset Response | 10 µs on VCC fall; provides fast fault detection to prevent system lockup during brownout events. |
Pinout & Package
ADM1816-5ART-REEL7 is housed in a 3-lead SOT-23 (RT-3) package per JEDEC TO-236-AB, with 2.90 mm × 1.30 mm footprint, 0.95 mm height, and gull-wing leads for reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RST) | Active-low open-drain reset output | Asserts low when VCC < 3.06 V; remains low for 150 ms after VCC rises above threshold; requires external pull-up only if higher impedance than 5.5 kΩ is needed. |
| 2 (VCC) | Monitored supply input | Connects directly to 3.3 V rail being supervised; supplies internal circuitry and enables threshold comparison. |
| 3 (GND) | Ground reference | 0 V return path for all internal biasing and comparator references; must be low-impedance connection to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pull-up resistor | 5.5 kΩ ±30%; eliminates external component count and PCB space for standard reset interface. |
| Precision trip point | 3.06 V ±1.5% (typical); matches 3.3 V supply tolerance (±10%) with margin for reliable detection. |
| Fixed reset timeout | 150 ms typical; meets JEDEC JESD8-12B requirement for microprocessor power-on reset timing. |
| Low temperature drift | ±0.01%/°C typical threshold variation; maintains accuracy across full −40°C to +105°C range. |
| Ultra-low ICC | 9 µA minimum at 3.6 V; extends battery life in portable instrumentation and remote sensor nodes. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power sequencing in programmable logic controller CPU board with 3.3 V FPGA and ARM core. IC Role / Device Role / Timing Role: Monitors 3.3 V VCC rail and asserts active-low reset until voltage stabilizes for ≥150 ms post-power-on. Use Value: Prevents configuration corruption in FPGA and illegal instruction execution in ARM core during brown-in conditions. |
Use Scenario: Reset supervision for CAN-enabled body control unit operating in engine bay environment. IC Role / Device Role / Timing Role: Provides temperature-stable reset signal under thermal cycling (−40°C to +105°C) and load-dump transients. Use Value: Ensures deterministic boot behavior despite wide ambient temperature swings and electrical noise. |
| Medical Patient Monitor | Smart Energy Meter |
Use Scenario: Critical reset function in Class II medical device with isolated 3.3 V logic supply derived from AC/DC converter. IC Role / Device Role / Timing Role: Guarantees clean reset release only after 3.3 V rail settles within specification for >150 ms. Use Value: Meets IEC 60601-1 safety requirement for fail-safe power-on initialization without software intervention. |
Use Scenario: Supervision of 3.3 V microcontroller supply in ANSI C12.20-certified electricity meter with tamper detection. IC Role / Device Role / Timing Role: Detects undervoltage during battery backup switchover and triggers controlled shutdown sequence. Use Value: Preserves meter calibration data and prevents erroneous kWh accumulation during supply transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2T-T | 3.08 V reset threshold, 140 ms timeout, 20 µA max ICC, SOT-23-3 | Higher threshold tolerance (±2.5%), shorter timeout; less suitable for tight 3.3 V margin designs | Select when legacy MAXIM footprint compatibility is required and 3.08 V trip point aligns with system margin analysis. |
| TPS3808G30DBVR | 3.0 V threshold, adjustable delay (0.5–10 s), 1.1 µA typical ICC, SOT-23-6 | Lower ICC but larger package and different pinout; requires external capacitor for delay tuning | Choose for ultra-low-power battery applications where extended delay flexibility justifies added BOM and layout complexity. |
Compared with MAX809TRD2T-T and TPS3808G30DBVR, the ADM1816-5ART-REEL7 offers tighter threshold accuracy (±1.5% vs ±2.5%), guaranteed 150 ms timeout without external components, and optimized SOT-23-3 footprint for space-constrained industrial PCBs.
Availability
ADM1816-5ART-REEL7 is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical instrumentation requiring stable component supply with full RoHS compliance and traceable lot history.
Supply support for ADM1816-5ART-REEL7 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 series was designed specifically for cost-sensitive, space-constrained microprocessor reset supervision in industrial and automotive applications - emphasizing precision threshold stability, low ICC, and robust thermal performance.
FAQ
What is the exact reset threshold voltage of ADM1816-5ART-REEL7?
The ADM1816-5ART-REEL7 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 specified in Table 1 of the Rev. F datasheet and applies exclusively to the -5 variant, which denotes the 3.06 V trip point option.
Does ADM1816-5ART-REEL7 require an external pull-up resistor?
No, ADM1816-5ART-REEL7 includes an internal 5.5 kΩ pull-up resistor on its RST pin, enabling direct connection to standard CMOS/TTL reset inputs without external components. The internal resistor value falls within 3.5 kΩ to 7.5 kΩ across temperature and process variation, as confirmed in Table 1 of the datasheet.
Can ADM1816-5ART-REEL7 be used to monitor a 5 V supply?
No - ADM1816-5ART-REEL7 is specifically configured for 3.3 V supply monitoring with a 3.06 V threshold. For 5 V systems, Analog Devices specifies the ADM1811-5ART-REEL7 (4.62 V threshold) or ADM1810-5ART-REEL7. Using ADM1816-5ART-REEL7 on 5 V would result in continuous reset assertion.
What is the reset timeout duration of ADM1816-5ART-REEL7 and how is it implemented?
The ADM1816-5ART-REEL7 provides a fixed 150 ms (typical) reset timeout after VCC rises above the threshold, with guaranteed range of 100–250 ms. This delay is generated by an internal RC oscillator and timer circuit - no external capacitor is required, as stated in the General Description and Timing Diagrams sections of the datasheet.
Is ADM1816-5ART-REEL7 compatible with SC70 package footprints?
No - ADM1816-5ART-REEL7 uses the SOT-23 (RT-3) package, not SC70 (KS-3). While both are 3-lead packages, their dimensions differ: SOT-23 measures 2.90 mm × 1.30 mm, whereas SC70 is smaller at 2.00 mm × 1.25 mm. Pin 1 orientation and lead pitch also differ, making them non-interchangeable without PCB redesign.
ADM1816-5ART-REEL7 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-REEL7 FAQ
1.How can I place an order for ADM1816-5ART-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1816-5ART-REEL7 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-REEL7 reliable?
The price and inventory of ADM1816-5ART-REEL7 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-REEL7 is usually 5 days.
3.What payment methods are accepted for ADM1816-5ART-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1816-5ART-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1816-5ART-REEL7?
ADM1816-5ART-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1816-5ART-REEL7 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-REEL7?
For technical support, including ADM1816-5ART-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1816-5ART-REEL7 requirements.
6.How does Aetrix verify that ADM1816-5ART-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADM1816-5ART-REEL7 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-REEL7 meets industry standards.
7.What is the process for return or replacement of ADM1816-5ART-REEL7?
All ADM1816-5ART-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1816-5ART-REEL7, 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-REEL7 part is unused and in its original packaging.
Return procedure for ADM1816-5ART-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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