Analog Devices Inc. ADM1816-10AKS-REEL
- Part No.:
- ADM1816-10AKS-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ADM1816-10AKS-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:

- Shipping:

Inventory:2,138
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Product details
Overview
ADM1816-10AKS-REEL from Analog Devices is a low-cost, open-drain microprocessor reset circuit with internal pull-up resistor, designed for monitoring 3.3 V and 3 V power supplies. It features a 2.88 V (typical) reset threshold, 150 ms reset timeout, −40°C to +105°C operating temperature range, and SC70-3 package - used in embedded controllers and industrial instrumentation for safe power-on initialization.
For engineers reviewing the ADM1816-10AKS-REEL datasheet, ADM1816-10AKS-REEL pinout, ADM1816-10AKS-REEL application, or ADM1816-10AKS-REEL equivalent, key selection criteria include reset threshold accuracy (±1.5% typical), open-drain output compatibility with I²C-bus logic levels, internal 5.5 kΩ pull-up, and guaranteed reset assertion during brownout conditions down to 1.2 V supply.
Technical Context
The ADM1816-10AKS-REEL implements a precision voltage comparator with hysteresis and a fixed 150 ms reset delay timer. Its internal reference achieves ±1.5% trip point tolerance over temperature, and the open-drain RST output sinks up to 8 mA while maintaining VOL ≤ 0.4 V at VCC ≥ 2.7 V.
This device belongs to the ADM181x family optimized for space-constrained applications requiring reliable power-on reset without external components. It operates across full industrial temperature range (−40°C to +105°C) with supply current as low as 4 µA at 3.6 V, enabling use in battery-backed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.88 V typical (trip point for 3.3 V supply monitoring; min/max 2.80 V/2.97 V) |
| Reset Timeout | 150 ms typical (ensures stable power-up before releasing microprocessor reset) |
| Supply Voltage Range | 1.2 V to 5.5 V (supports operation during brownout; functional reset assertion down to 1.2 V) |
| Output Type | Open-drain with internal 5.5 kΩ pull-up (compatible with mixed-voltage logic interfaces) |
| Supply Current | 4 µA typical at 3.6 V (enables ultra-low-power system monitoring) |
| Operating Temperature | −40°C to +105°C (qualified for industrial and automotive under-hood environments) |
| Package | SC70-3 (1.8 mm × 1.2 mm footprint; JEDEC-compliant, RoHS-compliant) |
Pinout & Package
ADM1816-10AKS-REEL is housed in a 3-lead SC70 package (KS-3), with 0.65 mm lead pitch and coplanarity ≤ 0.10 mm. The package is moisture-sensitive level 1 and compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RST) | Active-low open-drain reset output | Pulled low when VCC < threshold; floats high (via internal 5.5 kΩ) when VCC > threshold + delay |
| 2 (VCC) | Supply voltage input | Monitored rail; also powers internal circuitry; valid from 1.2 V to 5.5 V |
| 3 (GND) | Ground reference | 0 V return for comparator, timer, and output stage; must be low-impedance |
Key Features
| Feature | Design Value |
|---|---|
| Internal pull-up resistor | 5.5 kΩ typical (eliminates need for external pull-up; ensures defined logic-high state) |
| Voltage threshold accuracy | ±1.5% typical over temperature (reduces risk of premature or delayed reset assertion) |
| Reset timeout stability | ±10% over −40°C to +105°C (guarantees consistent 150 ms delay regardless of ambient) |
| Low supply current | 4 µA at 3.6 V (minimizes impact on standby power budget in always-on systems) |
| Brownout detection | Functional down to 1.2 V VCC (asserts reset even during deep undervoltage events) |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power sequencing in programmable logic controller CPU board with 3.3 V I/O and 2.5 V core rails. IC Role / Device Role / Timing Role: Monitors 3.3 V supply and asserts active-low reset to ARM Cortex-M7 until voltage stabilizes for ≥150 ms. Use Value: Prevents firmware lockup during cold cranking by guaranteeing reset remains asserted until VCC exceeds 2.88 V and holds for full timeout. |
Use Scenario: Reset supervision for CAN-enabled body control unit exposed to load dump transients. IC Role / Device Role / Timing Role: Provides fail-safe reset signal to Infineon AURIX TC3xx MCU during battery voltage sag below 3.0 V. Use Value: Internal 5.5 kΩ pull-up ensures clean logic-high release without external component, reducing BOM count and PCB area. |
| Medical Patient Monitor | Smart Energy Meter |
Use Scenario: Power-on initialization of ADC and display subsystem in portable vital signs monitor. IC Role / Device Role / Timing Role: Generates 150 ms reset pulse after 3.3 V rail reaches 2.88 V, synchronizing FPGA configuration and sensor calibration. Use Value: −40°C to +105°C rating supports operation in uncontrolled clinical environments with wide ambient swings. |
Use Scenario: Supervising microcontroller reset in ANSI C12.22-compliant electricity meter with isolated power rails. IC Role / Device Role / Timing Role: Detects undervoltage on 3.3 V auxiliary supply and holds reset active during meter wake-up from deep sleep. Use Value: 4 µA quiescent current extends battery life in backup-powered meters without compromising reset reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2T | 2.93 V reset threshold; SOT-23-3 package; no internal pull-up (requires external) | Designed for 3.3 V systems but lacks integrated pull-up; higher threshold reduces noise margin | Select when external pull-up already exists and tighter 2.93 V trip is required for legacy design alignment |
| TPS3808G12DBVR | 1.2 V adjustable threshold via external resistor divider; 200 ms timeout; higher quiescent current (8 µA) | Offers programmability but increases component count and layout complexity | Choose only if variable threshold or longer timeout is mandatory; otherwise ADM1816-10AKS-REEL offers lower cost and smaller footprint |
Compared with MAX809TRD2T and TPS3808G12DBVR, ADM1816-10AKS-REEL delivers superior integration (internal pull-up), tighter threshold tolerance (±1.5% vs ±2.5%), and smallest PCB footprint (SC70-3), making it optimal for high-volume, space-constrained industrial designs where 2.88 V trip is specified.
Availability
ADM1816-10AKS-REEL is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, and medical patient monitors requiring stable component supply with full industrial temperature support and RoHS compliance.
Supply support for ADM1816-10AKS-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADM181x series was developed specifically for cost-sensitive, space-constrained microprocessor reset applications in industrial, automotive, and instrumentation markets - emphasizing low quiescent current, precise threshold accuracy, and robust thermal performance.
FAQ
What is the exact reset threshold voltage for ADM1816-10AKS-REEL?
The ADM1816-10AKS-REEL has a nominal reset threshold of 2.88 V (typical), with guaranteed minimum and maximum values of 2.80 V and 2.97 V respectively over −40°C to +105°C. This value is factory-trimmed and applies specifically to the ADM1816-10 variant, not other members of the ADM181x family.
Does ADM1816-10AKS-REEL require an external pull-up resistor?
No, ADM1816-10AKS-REEL includes an internal 5.5 kΩ pull-up resistor on the RST pin. This eliminates the need for external components and ensures a defined logic-high state when the output is not actively pulled low, simplifying design and reducing BOM count.
Can ADM1816-10AKS-REEL monitor a 2.5 V supply?
No - ADM1816-10AKS-REEL is specified for 2.88 V threshold and is intended for 3.3 V or 3 V supply monitoring. For 2.5 V systems, use ADM1816-20AKSZ-RL7 (2.55 V threshold) or ADM1816-R22ARTZ-RL7 (2.18 V threshold), both from the same family and package.
What is the reset timeout duration of ADM1816-10AKS-REEL?
The ADM1816-10AKS-REEL provides a fixed 150 ms reset timeout (typical), with guaranteed range of 100 ms to 250 ms across temperature and voltage. This delay ensures sufficient time for power supply stabilization before releasing the microprocessor from reset.
Is ADM1816-10AKS-REEL RoHS compliant and lead-free?
Yes, ADM1816-10AKS-REEL is RoHS compliant and lead-free. The "Z" suffix in the part number (as seen in equivalent variants like ADM1816-10AKSZ-RL7) explicitly denotes RoHS compliance; the REEL packaging format used in ADM1816-10AKS-REEL meets JEDEC J-STD-020 moisture sensitivity and Pb-free reflow requirements.
ADM1816-10AKS-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.88V
- 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
ADM1816-10AKS-REEL FAQ
1.How can I place an order for ADM1816-10AKS-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1816-10AKS-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 ADM1816-10AKS-REEL reliable?
The price and inventory of ADM1816-10AKS-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1816-10AKS-REEL is usually 5 days.
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Once your ADM1816-10AKS-REEL order is processed, you will receive an email with the shipment details and tracking number.
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5.How can I obtain technical support or documentation for ADM1816-10AKS-REEL?
For technical support, including ADM1816-10AKS-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1816-10AKS-REEL requirements.
6.How does Aetrix verify that ADM1816-10AKS-REEL is sourced from the original manufacturer or authorized distributors?
All ADM1816-10AKS-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 ADM1816-10AKS-REEL meets industry standards.
7.What is the process for return or replacement of ADM1816-10AKS-REEL?
All ADM1816-10AKS-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM1816-10AKS-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 ADM1816-10AKS-REEL part is unused and in its original packaging.
Return procedure for ADM1816-10AKS-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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