Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Supervisors

Analog Devices Inc. ADM1812-5AKSZ-RL7

Name: ADM1812-5AKSZ-RL7
Brand: Analog Devices Inc.
SKU: ADM1812-5AKSZ-RL7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: ADM1812-5AKSZ-RL7

Manufacturer:: Analog Devices Inc.

Category:: Supervisors

Package:: SC-70, SOT-323

Datasheet:: ADM1812-5AKSZ-RL7.pdf

Description:: IC SUPERVISOR 1 CHANNEL SC70-3

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,516

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

ADM1812-5AKSZ-RL7 from Analog Devices is a precision 5 V supply voltage supervisor IC with active-high push-pull reset output, 4.62 V typical trip threshold, 150 ms reset timeout, and −40°C to +105°C operating range. It ensures safe microprocessor initialization in embedded controllers and industrial computing systems by holding reset until power stabilizes.

For engineers reviewing the ADM1812-5AKSZ-RL7 datasheet, ADM1812-5AKSZ-RL7 pinout, ADM1812-5AKSZ-RL7 application, or ADM1812-5AKSZ-RL7 equivalent, key selection considerations include its SC70-3 package, active-high RST assertion logic, guaranteed 350 µA source current, and compatibility with 5 V rail monitoring without external components.

Technical Context

The ADM1812-5AKSZ-RL7 integrates a precision bandgap reference, comparator with hysteresis, and 150 ms internal timer to generate a clean, glitch-free active-high reset pulse. Its trip point is trimmed to 4.62 V (typ) with ±1.5% tolerance over temperature, ensuring reliable detection of 5 V supply brownout conditions.

It operates from 1.2 V to 5.5 V supply, draws only 4–10 µA quiescent current at 3.6 V, and features push-pull output capable of sourcing 350 µA while maintaining V_OH ≥ V_CC − 0.1 V - eliminating need for external pull-up resistors in most microcontroller reset inputs.

Key Specifications

Parameter	Value and Actual Design Meaning
Reset Threshold	4.62 V typical (min 4.50 V, max 4.75 V); precisely monitors 5 V rails for undervoltage lockout
Reset Timeout	150 ms typical (100–250 ms range); guarantees stable power before system release
Output Type	Active-high push-pull; drives MCU reset pin directly without external components
Supply Range	1.2 V to 5.5 V; supports operation during brown-in/brown-out transitions
Quiescent Current	4 µA at 3.6 V (max 10 µA); enables ultra-low-power always-on supervision
Operating Temp	−40°C to +105°C; qualified for industrial and automotive under-hood environments
Package	SC70-3 (KS-3); 2.0 mm × 1.25 mm footprint, compatible with high-density PCB layouts

Pinout & Package

ADM1812-5AKSZ-RL7 is housed in a 3-lead SC70 (KS-3) package with gull-wing leads, JEDEC-compliant outline, and coplanarity ≤ 0.10 mm. Pin 1 = RST (active-high reset output), Pin 2 = V_CC (monitored supply input), Pin 3 = GND (0 V reference).

Pin/Terminal	Circuit Role	Design Meaning
RST (Pin 1)	Active-high reset output	Drives high while V_CC < threshold; stays high for 150 ms after V_CC rises above threshold - directly interfaces with ARM Cortex-M, PIC, and STM32 reset pins
V_CC (Pin 2)	Monitored supply input	Connects to 5 V rail being supervised; device draws current only from this pin; no separate bias supply required
GND (Pin 3)	Ground reference	0 V return path for internal reference and output stage; must be tied to system ground plane for noise immunity

Key Features

Feature	Design Value
Factory-trimmed reset threshold	4.62 V ±1.5% over −40°C to +105°C - eliminates need for external resistor divider calibration
Guaranteed reset timeout	150 ms typical with 100–250 ms min/max spec - ensures deterministic boot sequence timing across temperature
Push-pull output drive	350 µA source capability at V_CC ≥ V_TH(max) - directly asserts reset on MCUs requiring active-high level-sensitive inputs
Ultra-low quiescent current	4 µA at 3.6 V - enables use in battery-backed or energy-harvesting systems where standby power matters
SC70-3 package	2.0 mm × 1.25 mm footprint - saves >60% board area vs. SOT-23 while maintaining reflow compatibility

Applications

Industrial PLC Controller	Automotive Body Control Module
Use Scenario: Monitors 5 V auxiliary supply powering CAN transceivers and I/O drivers in programmable logic controllers. IC Role / Device Role / Timing Role: Voltage supervisor providing active-high reset signal to ARM-based controller during cold start and load dump recovery. Use Value: Prevents spurious firmware execution during 5 V rail ramp-up; 150 ms timeout aligns with industrial power supply stabilization specs.	Use Scenario: Supervises 5 V domain supplying microcontroller, EEPROM, and LIN transceivers in door module electronics. IC Role / Device Role / Timing Role: Reset generator asserting active-high signal to ensure deterministic boot after ignition-on power sequencing. Use Value: Factory-trimmed 4.62 V threshold rejects transient dips below 4.50 V, avoiding false resets during alternator load switching.
Medical Diagnostic Handheld	Smart Energy Meter
Use Scenario: Ensures reliable startup of battery-charged 5 V DC-DC output powering FPGA and ADC subsystems. IC Role / Device Role / Timing Role: Low-power voltage monitor enabling safe initialization before sensor acquisition begins. Use Value: 4 µA quiescent current extends battery life; SC70-3 package fits tight space constraints near power management IC.	Use Scenario: Supervises isolated 5 V supply feeding metrology SoC and real-time clock in ANSI C12.22-compliant meters. IC Role / Device Role / Timing Role: Precision reset supervisor meeting IEC 62056-21 cold-start requirements for meter firmware integrity. Use Value: ±1.5% trip tolerance over full temperature range ensures compliance across −25°C to +70°C field operating conditions.

Industrial PLC Controller

Automotive Body Control Module

Use Scenario: Monitors 5 V auxiliary supply powering CAN transceivers and I/O drivers in programmable logic controllers.

IC Role / Device Role / Timing Role: Voltage supervisor providing active-high reset signal to ARM-based controller during cold start and load dump recovery.

Use Value: Prevents spurious firmware execution during 5 V rail ramp-up; 150 ms timeout aligns with industrial power supply stabilization specs.

Use Scenario: Supervises 5 V domain supplying microcontroller, EEPROM, and LIN transceivers in door module electronics.

IC Role / Device Role / Timing Role: Reset generator asserting active-high signal to ensure deterministic boot after ignition-on power sequencing.

Use Value: Factory-trimmed 4.62 V threshold rejects transient dips below 4.50 V, avoiding false resets during alternator load switching.

Medical Diagnostic Handheld

Smart Energy Meter

Use Scenario: Ensures reliable startup of battery-charged 5 V DC-DC output powering FPGA and ADC subsystems.

IC Role / Device Role / Timing Role: Low-power voltage monitor enabling safe initialization before sensor acquisition begins.

Use Value: 4 µA quiescent current extends battery life; SC70-3 package fits tight space constraints near power management IC.

Use Scenario: Supervises isolated 5 V supply feeding metrology SoC and real-time clock in ANSI C12.22-compliant meters.

IC Role / Device Role / Timing Role: Precision reset supervisor meeting IEC 62056-21 cold-start requirements for meter firmware integrity.

Use Value: ±1.5% trip tolerance over full temperature range ensures compliance across −25°C to +70°C field operating conditions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage supervisor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX809SUT+T	4.63 V trip, SOT-23-3 package, 140 ms reset timeout, 1.2–5.5 V supply	Same 5 V monitoring function but requires SOT-23 layout; slightly tighter trip tolerance (±1.2%)	Select when legacy SOT-23 footprint is fixed and higher trip accuracy is prioritized over package size
TPS3808G33DBVR	3.3 V fixed trip, not 5 V; adjustable version available but requires external resistor	Not drop-in for 5 V monitoring; requires redesign for trip point and may increase BOM count	Choose only if migrating to 3.3 V system architecture or needing adjustable threshold with external feedback

Compared with MAX809SUT+T and TPS3808G33DBVR, the ADM1812-5AKSZ-RL7 delivers identical 5 V supervision functionality in a smaller SC70-3 footprint, with guaranteed 150 ms timeout and factory-trimmed threshold - making it optimal for space-constrained industrial and automotive designs where 5 V rail integrity is critical.

Availability

ADM1812-5AKSZ-RL7 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical handheld devices requiring stable component supply with full RoHS compliance and extended temperature support.

Supply support for ADM1812-5AKSZ-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 designed specifically for robust, low-cost microprocessor reset supervision in harsh environments - emphasizing precision trip points, guaranteed timeout, and ultra-low power consumption across extended temperature ranges.

FAQ

What is the exact reset threshold voltage for ADM1812-5AKSZ-RL7?

The ADM1812-5AKSZ-RL7 has a nominal reset threshold of 4.62 V, with guaranteed minimum of 4.50 V and maximum of 4.75 V across −40°C to +105°C. This is factory-trimmed and specified in Table 1 of the Rev. F datasheet, making ADM1812-5AKSZ-RL7 suitable for precise 5 V supply monitoring without external calibration.

Does ADM1812-5AKSZ-RL7 require an external pull-up resistor on the RST pin?

No, ADM1812-5AKSZ-RL7 does not require an external pull-up resistor because it features an active-high push-pull output stage. The RST pin sources up to 350 µA when asserted high and sinks up to 8 mA when pulled low - enabling direct connection to microcontroller reset inputs such as those on STM32F4 or NXP S32K1xx families without additional components.

What is the operating temperature range supported by ADM1812-5AKSZ-RL7?

ADM1812-5AKSZ-RL7 is rated for operation from −40°C to +105°C, fully qualified per industrial temperature specifications. This range is confirmed in the Ordering Guide (Page 9) and Absolute Maximum Ratings (Table 2, Page 4) of the Rev. F datasheet, supporting deployment in under-hood automotive modules and factory-floor PLCs.

Can ADM1812-5AKSZ-RL7 be used to monitor a 3.3 V supply?

No, ADM1812-5AKSZ-RL7 is specifically configured for 5 V supply monitoring with a 4.62 V trip point. For 3.3 V supervision, Analog Devices offers the ADM1817-5AKSZ-RL7 (3.06 V trip) or ADM1818-5AKSZ-RL7 (3.06 V trip, open-drain). Using ADM1812-5AKSZ-RL7 on 3.3 V would result in permanent reset assertion since V_CC remains below threshold.

What package type is used for ADM1812-5AKSZ-RL7?

ADM1812-5AKSZ-RL7 uses the SC70-3 (KS-3) package - a 3-lead, gull-wing surface-mount outline measuring 2.0 mm × 1.25 mm with 0.65 mm lead pitch. This is explicitly stated in the Ordering Guide (Page 9) and Outline Dimensions (Figure 16, Page 8) of the Rev. F datasheet, and is RoHS-compliant (denoted by "Z" suffix).

ADM1812-5AKSZ-RL7 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:: 4.62V

Output:: Push-Pull, Totem Pole

Reset:: Active High

Reset Timeout:: 100ms Minimum

Operating Temperature:: -40°C ~ 105°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SC-70-3

ADM1812-5AKSZ-RL7 FAQ

1.How can I place an order for ADM1812-5AKSZ-RL7 through Aetrix?

Please submit a Request for Quotation (RFQ) for ADM1812-5AKSZ-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 ADM1812-5AKSZ-RL7 reliable?

The price and inventory of ADM1812-5AKSZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1812-5AKSZ-RL7 is usually 5 days.

3.What payment methods are accepted for ADM1812-5AKSZ-RL7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1812-5AKSZ-RL7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADM1812-5AKSZ-RL7?

ADM1812-5AKSZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADM1812-5AKSZ-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 ADM1812-5AKSZ-RL7?

For technical support, including ADM1812-5AKSZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1812-5AKSZ-RL7 requirements.

6.How does Aetrix verify that ADM1812-5AKSZ-RL7 is sourced from the original manufacturer or authorized distributors?

All ADM1812-5AKSZ-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 ADM1812-5AKSZ-RL7 meets industry standards.

7.What is the process for return or replacement of ADM1812-5AKSZ-RL7?

All ADM1812-5AKSZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1812-5AKSZ-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 ADM1812-5AKSZ-RL7 part is unused and in its original packaging.

Return procedure for ADM1812-5AKSZ-RL7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

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…