Analog Devices Inc. ADM1815-10AKSZ-RL

Overview

ADM1815-10AKSZ-RL from Analog Devices is an active-low push-pull microprocessor reset circuit designed to monitor 3.3 V power supplies with a typical reset threshold of 2.88 V. It delivers a 150 ms reset timeout after power-up, sinks up to 8 mA at reset assertion, draws only 4–10 µA quiescent current, and operates across −40°C to +105°C for industrial embedded systems requiring reliable power-on initialization.

For engineers reviewing the ADM1815-10AKSZ-RL datasheet, ADM1815-10AKSZ-RL pinout, ADM1815-10AKSZ-RL application, or ADM1815-10AKSZ-RL equivalent, this page provides verified specifications, package mapping to SC70-3, functional pin definitions, real-world use cases in automotive ECUs and industrial controllers, and two validated alternative parts with documented trip point and output architecture differences.

Technical Context

The ADM1815-10AKSZ-RL implements a precision voltage comparator with internal reference and fixed 150 ms reset delay timer. Its active-low push-pull output drives microprocessor RESET inputs directly without external pull-ups, supporting immediate system initialization upon stable VCC.

It features a guaranteed reset assertion when VCC falls below 2.80 V (min) and release when VCC rises above 2.97 V (max), with ±1.5% typical threshold accuracy over temperature. The device uses no external components and integrates thermal stability via on-chip biasing and trimming.

Key Specifications

Pinout & Package

ADM1815-10AKSZ-RL is housed in a 3-lead SC70 (KS-3) package - a RoHS-compliant, surface-mount plastic package with 0.65 mm lead pitch and coplanarity ≤0.10 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microprocessor reset applications.

Compared with ADM1815-10AKSZ-RL, the SOT-23 variant offers higher thermal resistance but eases hand-soldering, while the MAX6326 requires additional passives and delivers tighter threshold control at the cost of reduced noise immunity during reset release.

Availability

ADM1815-10AKSZ-RL is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical handheld devices requiring stable component supply with guaranteed long-term availability and full RoHS compliance.

Supply support for ADM1815-10AKSZ-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, serving industrial, automotive, communications, and healthcare markets.

The ADM181x series was engineered specifically for cost-sensitive, space-constrained microprocessor reset supervision-delivering factory-trimmed thresholds, integrated timing, and robust operation across extended temperature ranges without external components.

FAQ

What is the exact reset threshold voltage for ADM1815-10AKSZ-RL?

The ADM1815-10AKSZ-RL has a guaranteed reset threshold range of 2.80 V (minimum) to 2.97 V (maximum), with 2.88 V typical at 25°C. This value is factory-trimmed and specified across the full −40°C to +105°C operating temperature range per the Rev. F datasheet Table 1.

Does ADM1815-10AKSZ-RL require external components to function?

No, ADM1815-10AKSZ-RL operates autonomously with no external resistors, capacitors, or pull-ups required. Its active-low push-pull output drives microprocessor reset inputs directly, and internal circuitry handles voltage reference, comparison, and 150 ms timing-all integrated into the SC70-3 package.

Can ADM1815-10AKSZ-RL be used to monitor a 5 V supply?

No-ADM1815-10AKSZ-RL is configured for 2.88 V nominal threshold and optimized for 3.3 V supply monitoring. For 5 V systems, Analog Devices specifies ADM1810-10 or ADM1812-10 variants with 4.35 V thresholds; using ADM1815-10AKSZ-RL on 5 V would cause immediate, continuous reset assertion.

What is the maximum sink current capability of ADM1815-10AKSZ-RL's RST pin?

The RST output of ADM1815-10AKSZ-RL sinks up to 8 mA when asserted (low), measured at V_OUT = 0.4 V and VCC ≥ 2.7 V. This meets or exceeds the input current requirements of most modern microcontrollers' active-low reset pins without external driver stages.

Is ADM1815-10AKSZ-RL pin-compatible with other ADM181x variants in SC70-3?

Yes-ADM1815-10AKSZ-RL shares identical SC70-3 pinout (RST, VCC, GND) and mechanical footprint with all other ADM181x parts offered in KS-3 packaging, including ADM1810, ADM1811, ADM1812, ADM1813, ADM1816, ADM1817, and ADM1818 variants.