My Inquiry
My Account
Analog Devices Inc. ADM1818-10AKSZ-RL
- Part No.:
- ADM1818-10AKSZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ADM1818-10AKSZ-RL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,558
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADM1818-10AKSZ-RL from Analog Devices is a 3-pin open-drain microprocessor reset circuit with internal pull-up resistor, 2.88 V typical reset threshold, 150 ms reset timeout, −40°C to +105°C operating range, and SC70 package-used for reliable power-on reset supervision of 3.3 V supply rails in embedded controllers and industrial instrumentation.
For engineers reviewing the ADM1818-10AKSZ-RL datasheet, ADM1818-10AKSZ-RL pinout, ADM1818-10AKSZ-RL application, or ADM1818-10AKSZ-RL equivalent, this page delivers verified functional specifications, push-button reset timing behavior, SC70 package dimensions, and direct alternatives for 3.3 V system monitoring with manual reset capability.
Technical Context
The ADM1818-10AKSZ-RL implements a precision voltage comparator with hysteresis and a fixed 150 ms power-up delay timer. It asserts an active-low open-drain reset signal when VCC falls below 2.88 V (typ) and holds reset for ≥100 ms after VCC rises above threshold.
Its internal 5.5 kΩ pull-up resistor enables direct interface to microcontroller reset inputs without external components. Push-button reset functionality is supported via RST-to-GND connection, with 1 µs detection and 150 ms post-release hold time-confirmed for ADM1818 variants per datasheet Section "ADM1813 AND ADM1818".
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.88 V typical (min 2.80 V, max 2.97 V); monitors 3.3 V supplies with 13% undervoltage margin. |
| Reset Timeout | 150 ms typical (100–250 ms range); ensures stable power supply before releasing reset to microprocessor. |
| Supply Range | 1.2 V to 5.5 V; supports operation across wide input voltage while supervising only 3.3 V rail. |
| Quiescent Current | 4 µA at 3.6 V (max 10 µA); enables ultra-low-power system supervision in battery-backed applications. |
| Output Type | Open-drain with internal 5.5 kΩ pull-up (3.1–7.5 kΩ range); eliminates need for external pull-up resistor. |
| Push-Button Support | Validated 1 µs detection and 150 ms reset assertion on button release; enables manual system reset without additional logic. |
| Operating Temp | −40°C to +105°C; qualified for industrial and automotive under-hood environments. |
Pinout & Package
ADM1818-10AKSZ-RL is housed in a 3-lead SC70 (KS-3) package, measuring 2.00 mm × 1.25 mm × 0.95 mm (JEDEC-compliant), with gull-wing leads and coplanarity ≤0.10 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VCC) | Supply Input | Monitored power rail input; device draws current and compares against internal reference. |
| 2 (GND) | Ground Reference | 0 V return path for internal comparator and output stage; must be low-impedance. |
| 3 (RST) | Active-Low Open-Drain Output | Sinks up to 8 mA when asserted; floats high (pulled internally) when inactive; connects directly to µP reset pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Pull-Up Resistor | 5.5 kΩ nominal (3.1–7.5 kΩ range); removes external component requirement and saves PCB area. |
| Manual Reset Interface | Validated push-button detect-to-RST timing (1 µs) and 150 ms hold; enables field service reset without firmware intervention. |
| Precision Voltage Monitoring | ±1.5% trip point accuracy over temperature; ensures consistent reset behavior across −40°C to +105°C. |
| Low-Power Supervision | 4 µA supply current at 3.6 V; extends battery life in always-on monitoring applications. |
| SC70 Footprint Compatibility | Pin-compatible with SOT-23 variants (e.g., ADM1818-10ARTZ-RL); allows layout reuse across package options. |
Applications
| Industrial PLC Controller | Medical Diagnostic Instrument |
|---|---|
Use Scenario: Power-up sequence in a DIN-rail mounted programmable logic controller where 3.3 V FPGA configuration voltage must stabilize before logic initialization. IC Role / Device Role / Timing Role: Active-low reset supervisor asserting RST until 3.3 V rail exceeds 2.88 V and remains stable for 150 ms. Use Value: Prevents partial FPGA configuration and state corruption during brown-out recovery. |
Use Scenario: Embedded ARM-based imaging subsystem requiring deterministic boot after AC power restoration or battery switchover. IC Role / Device Role / Timing Role: Monitors 3.3 V I/O supply and generates synchronized reset pulse with 150 ms timeout and manual override via front-panel button. Use Value: Eliminates need for discrete RC reset network and dedicated reset IC logic, reducing BOM count by one component. |
| Automotive Body Control Module | Smart Energy Meter |
Use Scenario: Cold-cranking event in 12 V automotive system where 3.3 V MCU supply dips transiently during starter motor engagement. IC Role / Device Role / Timing Role: Detects VCC drop below 2.88 V and holds reset for 150 ms after recovery to prevent MCU lockup. Use Value: Guarantees safe restart after engine cranking without requiring watchdog co-design. |
Use Scenario: Tamper-resistant electricity meter with backup supercapacitor maintaining real-time clock and secure memory during mains outage. IC Role / Device Role / Timing Role: Supervises 3.3 V backup rail; triggers controlled shutdown and reset upon capacitor discharge below 2.88 V. Use Value: Enables clean state save and cryptographic key revalidation before power loss completes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SEUR+T | 2.8 V reset threshold (±2.5%), 140 ms timeout, SOT-23-3, no internal pull-up; requires external 47 kΩ resistor. | Lacks integrated push-button support; not validated for manual reset timing per datasheet. | Select when cost sensitivity outweighs board space savings and manual reset is unnecessary. |
| TPS3808G12DBVR | 1.2 V adjustable threshold (via resistor divider), 200 ms timeout, SOT-23-6, higher quiescent current (8 µA). | Requires external resistors for threshold setting; larger footprint and more complex layout. | Choose when flexible threshold tuning or longer timeout is required beyond fixed 2.88 V/150 ms. |
Compared with MAX809SEUR+T and TPS3808G12DBVR, the ADM1818-10AKSZ-RL provides guaranteed push-button reset timing, lower supply current, and eliminates external components-making it optimal for space-constrained 3.3 V systems needing field-serviceable reset.
Availability
ADM1818-10AKSZ-RL is available at Aetrix Electronics and suitable for industrial PLC controllers, medical diagnostic instruments, automotive body control modules, and smart energy meters requiring stable component supply with full RoHS compliance and extended temperature qualification.
Supply support for ADM1818-10AKSZ-RL 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 designed specifically for cost-sensitive, space-constrained microprocessor reset supervision in industrial, automotive, and instrumentation applications-emphasizing reliability, low power, and minimal external components.
FAQ
What is the exact reset threshold voltage for ADM1818-10AKSZ-RL?
The ADM1818-10AKSZ-RL has a guaranteed reset threshold of 2.80 V (min), 2.88 V (typ), and 2.97 V (max) at −40°C to +105°C. This 2.88 V typical value is optimized for reliable supervision of standard 3.3 V power rails with adequate noise margin and temperature stability.
Does ADM1818-10AKSZ-RL support manual reset via push-button?
Yes, ADM1818-10AKSZ-RL explicitly supports push-button reset per datasheet Section "ADM1813 AND ADM1818": pressing the button pulls RST low, and upon release, the device asserts reset for 150 ms typical-enabling field-serviceable system restart without firmware involvement.
What package type and dimensions does ADM1818-10AKSZ-RL use?
ADM1818-10AKSZ-RL uses the SC70 (KS-3) package: 2.00 mm × 1.25 mm × 0.95 mm body size, 0.65 mm lead pitch, gull-wing leads, and JEDEC-compliant outline. Its compact footprint is ideal for dense PCB layouts in portable and industrial equipment.
Is an external pull-up resistor required for ADM1818-10AKSZ-RL?
No. ADM1818-10AKSZ-RL integrates a 5.5 kΩ (typical) internal pull-up resistor on the RST pin, eliminating the need for external components. The datasheet specifies 3.1–7.5 kΩ tolerance, enabling direct connection to microprocessor reset inputs without additional parts.
What is the operating temperature range and supply voltage range for ADM1818-10AKSZ-RL?
ADM1818-10AKSZ-RL operates from −40°C to +105°C and accepts supply voltages from 1.2 V to 5.5 V. Its wide VCC range allows flexibility in system design while supervising only the 3.3 V rail-verified across full temperature and voltage extremes in Table 1 of the Rev. F datasheet.
ADM1818-10AKSZ-RL 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
ADM1818-10AKSZ-RL FAQ
1.How can I place an order for ADM1818-10AKSZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1818-10AKSZ-RL 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 ADM1818-10AKSZ-RL reliable?
The price and inventory of ADM1818-10AKSZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1818-10AKSZ-RL is usually 5 days.
3.What payment methods are accepted for ADM1818-10AKSZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1818-10AKSZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1818-10AKSZ-RL?
ADM1818-10AKSZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1818-10AKSZ-RL 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 ADM1818-10AKSZ-RL?
For technical support, including ADM1818-10AKSZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1818-10AKSZ-RL requirements.
6.How does Aetrix verify that ADM1818-10AKSZ-RL is sourced from the original manufacturer or authorized distributors?
All ADM1818-10AKSZ-RL 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 ADM1818-10AKSZ-RL meets industry standards.
7.What is the process for return or replacement of ADM1818-10AKSZ-RL?
All ADM1818-10AKSZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADM1818-10AKSZ-RL, 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 ADM1818-10AKSZ-RL part is unused and in its original packaging.
Return procedure for ADM1818-10AKSZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADM1818-10AKSZ-RL 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…
