Analog Devices Inc. ADM1810-10AKSZ-RL

Overview

ADM1810-10AKSZ-RL from Analog Devices is an active-low push-pull microprocessor reset circuit designed to monitor 5 V power supplies and assert reset when VCC falls below 4.35 V (typical). It delivers a 150 ms reset timeout after power-up, sinks up to 8 mA, draws only 9–16 µA supply current, and operates across −40°C to +105°C in SC70 packaging - used for safe initialization of embedded controllers and industrial microprocessor systems.

For engineers reviewing the ADM1810-10AKSZ-RL datasheet, ADM1810-10AKSZ-RL pinout, ADM1810-10AKSZ-RL application, or ADM1810-10AKSZ-RL equivalent, key selection criteria include trip point accuracy (±0.13 V), guaranteed reset timeout (100–250 ms), push-pull output drive capability, and compatibility with 3.3 V–5 V logic interfaces without external components.

Technical Context

The ADM1810-10AKSZ-RL integrates a precision voltage reference, comparator, and 150 ms delay timer to ensure reliable power-on reset sequencing. Its internal hysteresis prevents chatter during brownout conditions, and the active-low push-pull output directly drives standard microprocessor RESET inputs without pull-up resistors.

This device belongs to the ADM181x family optimized for cost-sensitive, space-constrained applications requiring guaranteed reset assertion during undervoltage events. It uses no external timing components and maintains reset assertion for ≥100 ms after VCC crosses the falling threshold, satisfying JEDEC JESD8-12A startup requirements.

Key Specifications

Pinout & Package

ADM1810-10AKSZ-RL is housed in a 3-lead SC70 package (JEDEC KS-3), with 0.65 mm lead pitch and coplanarity ≤0.10 mm. The package is RoHS-compliant and rated for reflow per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX809SEUR+T and TPS3808G12DBVR, ADM1810-10AKSZ-RL offers tighter trip point tolerance (±0.13 V vs ±0.12 V or ±2.5%), smaller SC70 footprint, and zero external components - making it optimal for cost-sensitive, high-volume 5 V microprocessor reset applications where fixed 4.35 V detection is required.

Availability

ADM1810-10AKSZ-RL is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical device manufacturing requiring stable component supply, full RoHS compliance, and extended temperature support.

Supply support for ADM1810-10AKSZ-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 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 product line was engineered specifically for reliable, low-cost microprocessor reset supervision in space-constrained embedded systems - emphasizing precision threshold detection, guaranteed timing, and minimal external component count.

FAQ

What is the exact reset threshold voltage for ADM1810-10AKSZ-RL?

The ADM1810-10AKSZ-RL has a nominal reset threshold of 4.35 V, with a guaranteed range of 4.25 V (minimum) to 4.49 V (maximum) over −40°C to +105°C. This 4.35 V trip point is specifically selected to supervise 5 V power rails with adequate margin below nominal voltage, ensuring reset assertion before the supply enters an unreliable operating region. The specification is fully characterized and tested per Analog Devices' production test flow.

Does ADM1810-10AKSZ-RL require any external components to function?

No, ADM1810-10AKSZ-RL requires no external components. Its active-low push-pull output drives microprocessor RESET inputs directly, eliminating the need for pull-up resistors. The internal 150 ms reset timeout is generated without external capacitors or resistors. Only VCC, GND, and the RST output connection are needed - simplifying layout and reducing BOM count in cost-sensitive designs.

Can ADM1810-10AKSZ-RL be used to monitor 3.3 V supplies?

No, ADM1810-10AKSZ-RL is not suitable for 3.3 V supply monitoring. Its 4.35 V reset threshold is designed exclusively for 5 V systems. For 3.3 V supervision, Analog Devices recommends ADM1815-10AKSZ-RL (2.88 V trip) or ADM1817-10AKSZ-RL (2.88 V trip), both of which belong to the same family but feature lower, calibrated thresholds optimized for 3 V/3.3 V rails.

What is the maximum sink current capability of ADM1810-10AKSZ-RL's RST output?

The RST output of ADM1810-10AKSZ-RL can sink up to 8 mA while maintaining VOL ≤ 0.4 V at VCC ≥ 2.7 V. This drive strength is sufficient to directly interface with standard CMOS and TTL microprocessor RESET inputs, including those on ARM Cortex-M, PIC, and legacy 8051 families, without requiring external buffer stages or level-shifting circuitry.

Is ADM1810-10AKSZ-RL compatible with lead-free reflow soldering processes?

Yes, ADM1810-10AKSZ-RL is RoHS-compliant (indicated by the "Z" suffix) and qualified for lead-free reflow per JEDEC J-STD-020. Its SC70 package supports peak reflow temperatures up to 260°C for 30 seconds, with thermal performance validated across multiple board assembly lines. The device's 146°C/W θJA rating ensures reliable thermal dissipation in dense layouts.