My Inquiry
My Account
Analog Devices Inc. ADM1818-5AKS-REEL7
- Part No.:
- ADM1818-5AKS-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ADM1818-5AKS-REEL7.pdf
- Description:
- IC MONITOR RESET 3.6V SC-70-3
- Quantity:
- Payment:
- Shipping:
Inventory:50,954
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADM1818-5AKS-REEL7 from Analog Devices is a 3-pin SC70-packaged open-drain microprocessor reset circuit with 3.06 V typical reset threshold, 150 ms reset timeout, and push-button reset capability. It monitors 3.3 V power supplies in embedded controllers and ensures safe system initialization by holding reset until supply stabilization.
For engineers reviewing the ADM1818-5AKS-REEL7 datasheet, ADM1818-5AKS-REEL7 pinout, ADM1818-5AKS-REEL7 application, or ADM1818-5AKS-REEL7 equivalent, key selection criteria include open-drain output compatibility with external pull-up, 2.80–3.15 V trip-point tolerance, −40°C to +105°C operating range, and manual reset timing (1 μs detect, 150 ms assert).
Technical Context
The ADM1818-5AKS-REEL7 implements a precision voltage comparator with internal reference and fixed 150 ms reset delay timer. Its open-drain RST output requires an external pull-up resistor (3.1–7.5 kΩ typical) and supports manual reset via push-button connection between RST and GND.
It operates across 1.2–5.5 V supply range with ultra-low quiescent current (4–10 μA at 3.6 V), delivers 8 mA sink capability at VCC ≥ 2.7 V, and maintains trip-point accuracy over temperature (±1.5% typical drift from −40°C to +105°C).
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 supply with 9% headroom for brownout detection |
| Reset Timeout | 150 ms typical (100–250 ms); ensures stable power-up before releasing microprocessor reset |
| Supply Range | 1.2–5.5 V; supports wide-input systems including battery-backed or multi-rail designs |
| Quiescent Current | 4 μA at 3.6 V; enables low-power operation in always-on monitoring applications |
| Output Type | Open-drain RST; allows wired-OR configuration and flexible logic-level interfacing |
| Push-Button Support | 1 μs detection latency, 150 ms active reset pulse; enables field-serviceable manual reset without external timing components |
| Operating Temp | −40°C to +105°C; qualified for industrial and automotive under-hood environments |
Pinout & Package
ADM1818-5AKS-REEL7 is housed in a 3-lead SC70 (KS-3) package per JEDEC standards, measuring 2.20 × 1.35 × 0.95 mm with 0.65 mm lead pitch and coplanarity ≤ 0.10 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VCC) | Supply Input | Monitored voltage rail; powers internal comparator and timer; must remain within 1.2–5.5 V |
| 2 (GND) | Ground Reference | 0 V return for all internal circuits; requires low-impedance connection to system ground plane |
| 3 (RST) | Open-Drain Reset Output | Active-low reset signal; sinks up to 8 mA; requires external pull-up to logic-high voltage |
Key Features
| Feature | Design Value |
|---|---|
| Push-button reset integration | Eliminates need for external RC timing network; provides deterministic 150 ms reset pulse after button release |
| Low supply current | 4 μA at 3.6 V enables >10-year battery life in coin-cell-powered supervisory applications |
| Wide temperature range | −40°C to +105°C operation supports deployment in harsh industrial enclosures and automotive ECUs |
| Precision trip point | ±1.5% typical threshold variation over temperature ensures reliable brownout detection across full range |
| SC70 footprint | 1.35 mm × 2.20 mm area saves >40% board space vs. SOT-23; compatible with high-density PCB assembly |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Monitors 3.3 V microcontroller supply in programmable logic controller during cold cranking and load dump events. IC Role / Device Role / Timing Role: Voltage supervisor providing power-on reset and brownout protection with 150 ms timeout. Use Value: Prevents firmware corruption by holding MCU in reset until 3.3 V rail stabilizes post-cranking, meeting ISO 16750-2 transient immunity requirements. |
Use Scenario: Supervises 3.3 V domain powering CAN transceiver and sensor interface ICs in body control unit. IC Role / Device Role / Timing Role: Open-drain reset generator synchronized to 3.3 V supply integrity and manual service reset. Use Value: Enables field technician-initiated reset via push-button without modifying PCB layout or adding discrete components. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Ensures reliable boot sequence for ARM Cortex-M4 processor powered from regulated 3.3 V LDO in portable ultrasound device. IC Role / Device Role / Timing Role: Low-current reset monitor with SC70 footprint minimizing PCB real estate in compact enclosure. Use Value: 4 μA quiescent current extends battery runtime while maintaining guaranteed 150 ms reset assertion during supply ramp-up. |
Use Scenario: Provides fail-safe reset for metrology SoC during AC line interruptions and capacitor discharge decay in DIN-rail meter. IC Role / Device Role / Timing Role: Precision 3.06 V threshold detector with temperature-stable trip point for accurate undervoltage lockout. Use Value: ±1.5% trip-point drift over −40°C to +85°C ensures consistent reset behavior across environmental test cycles per IEC 62053-21. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326UT31D3+T | 3.08 V threshold, 200 ms timeout, SOT-23-3 package, 1.8–5.5 V supply | Higher timeout tolerance (±10% vs. ±33%), no push-button support | Select when longer reset hold time is required and manual reset is unnecessary |
| TPS3808G33DBVR | 3.3 V threshold, 200 ms timeout, open-drain output, 0.9–6.0 V supply, 2.5 μA IQ | Higher trip point (3.3 V vs. 3.06 V), tighter threshold accuracy (±0.5% vs. ±1.5%), no push-button function | Select for tighter voltage margin control in 3.3 V systems where manual reset is handled externally |
Compared with MAX6326UT31D3+T and TPS3808G33DBVR, ADM1818-5AKS-REEL7 uniquely combines 3.06 V trip point optimized for 3.3 V rails, integrated push-button reset, and SC70 footprint-making it optimal for space-constrained industrial controllers requiring field-serviceable reset capability.
Availability
ADM1818-5AKS-REEL7 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 ADM1818-5AKS-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 applications requiring precision voltage monitoring, deterministic reset timing, and optional manual reset functionality in SOT-23 and SC70 packages.
FAQ
What is the exact reset threshold voltage of ADM1818-5AKS-REEL7?
The ADM1818-5AKS-REEL7 has a nominal reset threshold of 3.06 V, with guaranteed minimum and maximum values of 2.98 V and 3.15 V respectively across −40°C to +105°C. This trip point is optimized for reliable monitoring of 3.3 V power supplies, providing ~9% headroom for brownout detection under worst-case conditions.
Does ADM1818-5AKS-REEL7 support manual reset via push-button?
Yes, ADM1818-5AKS-REEL7 explicitly supports manual reset: connecting a push-button between RST and GND pulls the open-drain output low, and upon release, the device asserts reset for 150 ms typical. The detect-to-reset latency is 1 μs, enabling responsive field service without external timing components.
What package type is used for ADM1818-5AKS-REEL7?
ADM1818-5AKS-REEL7 uses the 3-lead SC70 (KS-3) package per JEDEC standards, with dimensions 2.20 mm × 1.35 mm × 0.95 mm and 0.65 mm lead pitch. Its compact footprint reduces PCB area by >40% compared to SOT-23 variants while maintaining full functional compatibility.
What is the supply current consumption of ADM1818-5AKS-REEL7 at 3.6 V?
At 3.6 V supply and ambient temperature, ADM1818-5AKS-REEL7 draws 4 μA typical quiescent current (max 10 μA). This ultra-low power draw enables multi-year operation in battery-backed systems and minimizes thermal impact in thermally constrained enclosures.
Can ADM1818-5AKS-REEL7 be used to monitor a 5 V supply?
No - ADM1818-5AKS-REEL7 is configured for 3.06 V threshold and is intended for 3.3 V supply monitoring. For 5 V applications, Analog Devices specifies the ADM1813-5AKS-REEL7 (4.62 V threshold) or ADM1813-10AKS-REEL7 (4.35 V threshold) as functionally matched alternatives in identical SC70 packaging.
ADM1818-5AKS-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
ADM1818-5AKS-REEL7 FAQ
1.How can I place an order for ADM1818-5AKS-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1818-5AKS-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 ADM1818-5AKS-REEL7 reliable?
The price and inventory of ADM1818-5AKS-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1818-5AKS-REEL7 is usually 5 days.
3.What payment methods are accepted for ADM1818-5AKS-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1818-5AKS-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1818-5AKS-REEL7?
ADM1818-5AKS-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1818-5AKS-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 ADM1818-5AKS-REEL7?
For technical support, including ADM1818-5AKS-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1818-5AKS-REEL7 requirements.
6.How does Aetrix verify that ADM1818-5AKS-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADM1818-5AKS-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 ADM1818-5AKS-REEL7 meets industry standards.
7.What is the process for return or replacement of ADM1818-5AKS-REEL7?
All ADM1818-5AKS-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1818-5AKS-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 ADM1818-5AKS-REEL7 part is unused and in its original packaging.
Return procedure for ADM1818-5AKS-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADM1818-5AKS-REEL7 Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
