My Inquiry
My Account
Analog Devices Inc. ADM1818-10AKSZ-RL7
- Part No.:
- ADM1818-10AKSZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ADM1818-10AKSZ-RL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,659
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADM1818-10AKSZ-RL7 from Analog Devices is a 3-pin open-drain microprocessor reset circuit with internal pull-up resistor, designed to monitor 3.3 V power supplies by asserting reset when VCC falls below 2.88 V (typical). It delivers 150 ms reset timeout, supports manual push-button reset with 1 µs detection, and operates across −40°C to +105°C in SC70 package. Used in embedded controllers requiring reliable power-on initialization.
For engineers reviewing the ADM1818-10AKSZ-RL7 datasheet, ADM1818-10AKSZ-RL7 pinout, ADM1818-10AKSZ-RL7 application, or ADM1818-10AKSZ-RL7 equivalent, key selection criteria include trip point tolerance (±0.13 V), internal pull-up value (5.5 kΩ typical), push-button compatibility, reset timing accuracy over temperature, and SC70 footprint compatibility with space-constrained PCB layouts.
Technical Context
The ADM1818-10AKSZ-RL7 implements a precision voltage comparator with hysteresis and integrated 150 ms delay timer to prevent false resets during supply ramp-up or transient dips. Its open-drain output with internal 5.5 kΩ pull-up enables direct interface to microcontroller reset inputs requiring active-low assertion.
Unlike push-pull variants, this device supports external manual reset via RST-to-GND switch, with guaranteed 150 ms reset hold after button release - a feature confirmed only for ADM1813/ADM1818 family members 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% headroom. |
| Reset Timeout | 150 ms typical (100–250 ms range); ensures stable power-up before system release. |
| Supply Range | 1.2 V to 5.5 V; supports operation down to 1.2 V while monitoring higher rails. |
| Quiescent Current | 4 µA typical at 3.6 V; enables ultra-low-power battery-backed systems. |
| Output Type | Open-drain with internal 5.5 kΩ pull-up; eliminates need for external resistor in most MCU reset circuits. |
| Push-Button Support | 1 µs minimum press detection; guarantees clean reset initiation without contact bounce issues. |
| Operating Temp | −40°C to +105°C; qualified for industrial and automotive under-hood applications. |
Pinout & Package
ADM1818-10AKSZ-RL7 uses a 3-lead SC70 (KS-3) package, measuring 2.00 mm × 1.25 mm × 0.95 mm (L × W × H), JEDEC-compliant with coplanarity ≤0.10 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-low open-drain reset output | Pulled low when VCC < threshold; floats high (via internal 5.5 kΩ) when valid; accepts manual GND short for reset initiation. |
| VCC | Supply input / monitored rail | Both powers the IC and serves as the voltage source for threshold comparison; no separate reference pin required. |
| GND | Analog and digital ground reference | 0 V return path for comparator bias, timer circuitry, and output stage; must be low-impedance for accurate threshold tracking. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pull-up resistor | 5.5 kΩ typical (3.1–7.5 kΩ range); removes external component and saves board area in reset signal routing. |
| Manual reset support | 1 µs push-button detect + 150 ms hold time; enables field service reset without firmware intervention. |
| Wide supply range | 1.2 V to 5.5 V operation; allows use in mixed-voltage systems (e.g., 3.3 V monitored rail with 1.8 V logic domain). |
| High-temp qualification | −40°C to +105°C operation; meets extended industrial temperature requirements without derating. |
| Low quiescent current | 4 µA at 3.6 V; extends battery life in always-on supervisory applications such as IoT edge nodes. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Monitors 3.3 V microcontroller core supply in programmable logic controllers deployed in factory environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Voltage supervisor providing power-on reset and brownout protection; asserts active-low reset for ≥150 ms until supply stabilizes. Use Value: Prevents erratic MCU boot behavior during cold-start or line transients; eliminates need for external RC timing network. | Use Scenario: Supervises 3.3 V domain powering CAN transceivers and sensor interfaces in vehicle body electronics exposed to under-dash thermal stress. IC Role / Device Role / Timing Role: Reset generator with guaranteed 150 ms timeout and −40°C to +105°C operation; provides deterministic initialization sequence. Use Value: Ensures reliable startup after battery reconnection or load-dump events; internal pull-up avoids BOM cost and layout complexity. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Powers on ARM-based diagnostic processor in portable ultrasound devices where battery runtime and reliability are critical. IC Role / Device Role / Timing Role: Low-current (4 µA) reset supervisor with push-button reset capability for user-initiated reboot. Use Value: Enables field-serviceable reset without opening enclosure; SC70 footprint minimizes PCB real estate in compact handheld form factor. | Use Scenario: Monitors 3.3 V supply feeding metrology ADC and secure MCU in utility-grade electricity meters operating 24/7 in outdoor enclosures. IC Role / Device Role / Timing Role: Precision voltage monitor with ±0.13 V trip tolerance and 150 ms reset hold; prevents spurious resets during grid voltage sags. Use Value: Maintains data integrity during brownouts; RoHS-compliant SC70 package supports lead-free manufacturing compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADM1816-10AKSZ-RL7 | Same 2.88 V trip point, same SC70 package, but lacks push-button reset functionality. | Not suitable where manual reset is required; otherwise identical supervision behavior. | Select when push-button reset is unnecessary and lowest possible BOM count is prioritized. |
| TPS3808G18DBVR | TI part with 1.8 V threshold, 300 ms reset timeout, and no internal pull-up; requires external resistor. | Designed for lower-voltage rails (1.8 V); longer timeout may delay system boot unnecessarily. | Choose only if 1.8 V monitoring is needed; not drop-in compatible due to different threshold and missing internal pull-up. |
Compared with ADM1816-10AKSZ-RL7, the ADM1818-10AKSZ-RL7 adds verified push-button reset support - critical for field-serviceable designs - while maintaining identical trip accuracy and package. Versus TPS3808G18DBVR, it offers tighter threshold tolerance, shorter reset timeout, and eliminates an external component, simplifying design for 3.3 V systems.
Availability
ADM1818-10AKSZ-RL7 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 with full temperature-range qualification and RoHS compliance.
Supply support for ADM1818-10AKSZ-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 since 1965.
The ADM181x series was engineered specifically for cost-sensitive, space-constrained microprocessor reset applications - delivering precision voltage monitoring, robust timing, and simplified integration in SOT-23 and SC70 packages.
FAQ
What is the exact reset threshold voltage of ADM1818-10AKSZ-RL7?
The ADM1818-10AKSZ-RL7 has a nominal reset threshold of 2.88 V, with guaranteed minimum and maximum values of 2.80 V and 2.97 V respectively, measured across −40°C to +105°C. This 2.88 V trip point is optimized for reliable supervision of standard 3.3 V power rails, providing ~13% margin below nominal voltage.
Does ADM1818-10AKSZ-RL7 support manual reset via push-button?
Yes, ADM1818-10AKSZ-RL7 explicitly supports manual reset: pressing a push-button between RST and GND for ≥1 µs triggers a guaranteed 150 ms reset pulse upon release. This function is documented exclusively for ADM1813 and ADM1818 variants in the datasheet's "ADM1813 AND ADM1818" section.
What package type and dimensions does ADM1818-10AKSZ-RL7 use?
ADM1818-10AKSZ-RL7 uses the SC70-3 (KS-3) package: 2.00 mm × 1.25 mm × 0.95 mm footprint, JEDEC-compliant, with 0.65 mm pin pitch and coplanarity ≤0.10 mm. Pin 1 = VCC, Pin 2 = GND, Pin 3 = RST - matching Figure 3 and Table 3 in the Rev. F datasheet.
Can ADM1818-10AKSZ-RL7 monitor a 5 V supply?
No - ADM1818-10AKSZ-RL7 is specified for 2.88 V threshold and intended for 3.3 V supply monitoring. For 5 V systems, Analog Devices specifies ADM1813-10AKSZ-RL7 (4.35 V trip) or ADM1813-5AKSZ-RL7 (4.62 V trip); using ADM1818-10AKSZ-RL7 on 5 V would result in continuous reset assertion.
Is there an internal pull-up resistor on the RST pin of ADM1818-10AKSZ-RL7?
Yes, ADM1818-10AKSZ-RL7 includes an internal pull-up resistor on the RST pin with a typical value of 5.5 kΩ (range 3.1 kΩ to 7.5 kΩ). This eliminates the need for an external pull-up resistor in most microcontroller reset interface configurations, reducing BOM count and PCB area.
ADM1818-10AKSZ-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:
- 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-RL7 FAQ
1.How can I place an order for ADM1818-10AKSZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1818-10AKSZ-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 ADM1818-10AKSZ-RL7 reliable?
The price and inventory of ADM1818-10AKSZ-RL7 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-RL7 is usually 5 days.
3.What payment methods are accepted for ADM1818-10AKSZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1818-10AKSZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1818-10AKSZ-RL7?
ADM1818-10AKSZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1818-10AKSZ-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 ADM1818-10AKSZ-RL7?
For technical support, including ADM1818-10AKSZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1818-10AKSZ-RL7 requirements.
6.How does Aetrix verify that ADM1818-10AKSZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADM1818-10AKSZ-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 ADM1818-10AKSZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADM1818-10AKSZ-RL7?
All ADM1818-10AKSZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1818-10AKSZ-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 ADM1818-10AKSZ-RL7 part is unused and in its original packaging.
Return procedure for ADM1818-10AKSZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADM1818-10AKSZ-RL7 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…
