Analog Devices Inc. ADM1813-10AKS-RL7

Overview

ADM1813-10AKS-RL7 from Analog Devices is a microprocessor reset circuit with open-drain output and internal 5.5 kΩ pull-up resistor, designed for monitoring 5 V power supplies. It features a 4.35 V typical reset threshold, 150 ms reset timeout, −40°C to +105°C operating range, and supports manual push-button reset initiation. It ensures safe system initialization in embedded controllers and industrial microprocessor systems.

For engineers reviewing the ADM1813-10AKS-RL7 datasheet, ADM1813-10AKS-RL7 pinout, ADM1813-10AKS-RL7 application, or ADM1813-10AKS-RL7 equivalent, key selection criteria include reset threshold tolerance (±0.14 V), push-button reset timing (1 µs detect, 150 ms hold), SC70 package footprint, and compatibility with 5 V supply rails requiring active-low reset signaling.

Technical Context

The ADM1813-10AKS-RL7 implements a precision voltage comparator with hysteresis-free trip point detection and integrated 150 ms power-up delay timer. Its internal reference and bias circuitry maintain stable threshold performance across temperature (±0.5% drift over −40°C to +105°C) and supply variation.

This device operates as an active-low reset supervisor: RST remains low while VCC is below 4.35 V (typ), holds low for 150 ms after VCC rises above threshold, and supports external push-button assertion via direct GND connection to RST - triggering another 150 ms reset pulse upon button release.

Key Specifications

Pinout & Package

ADM1813-10AKS-RL7 is housed in a 3-lead SC70 (KS-3) package, measuring 2.00 mm × 1.25 mm × 0.95 mm, with JEDEC-compliant footprint and coplanarity ≤0.10 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage monitor with push-button reset applications.

Compared with MAX6326XR31D3+T and TPS3808G33DBVR, the ADM1813-10AKS-RL7 uniquely combines 4.35 V threshold, integrated push-button support, internal pull-up, and SC70 packaging-making it optimal for compact 5 V microprocessor reset applications where manual recovery and minimal BOM are critical.

Availability

ADM1813-10AKS-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 and guaranteed long-term availability.

Supply support for ADM1813-10AKS-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.

The ADM181x series was developed specifically for cost-sensitive, space-constrained microprocessor reset supervision-emphasizing reliability, low power, and simplified integration in 5 V and lower-voltage embedded systems.

FAQ

What is the exact reset threshold voltage for ADM1813-10AKS-RL7?

The ADM1813-10AKS-RL7 has a nominal reset threshold of 4.35 V (typical), with guaranteed minimum of 4.25 V and maximum of 4.49 V across −40°C to +105°C. This value is factory-trimmed and specified in Table 1 of the Rev. F datasheet, making ADM1813-10AKS-RL7 suitable for precise 5 V supply monitoring where ±3% tolerance is required.

Does ADM1813-10AKS-RL7 support manual reset via push-button?

Yes, ADM1813-10AKS-RL7 explicitly supports push-button reset: connecting a momentary switch between RST and GND pulls the output low, and upon release, the device asserts a full 150 ms reset pulse. This behavior is documented in the "ADM1813 AND ADM1818" section (Page 7) and Figure 12 timing diagram, confirming native support without external components.

What package type and dimensions does ADM1813-10AKS-RL7 use?

ADM1813-10AKS-RL7 uses the 3-lead SC70 (KS-3) package, with body dimensions of 2.00 mm × 1.25 mm × 0.95 mm and 0.65 mm lead pitch. Outline drawing Figure 16 (Page 8) confirms JEDEC SC70 compliance, and the ordering guide specifies "KS-3 (SC70)" for this variant - distinct from SOT-23 (RT-3) variants like ADM1813-10ARTZ-RL7.

Can ADM1813-10AKS-RL7 be used with 3.3 V microcontrollers?

Yes, ADM1813-10AKS-RL7 can interface with 3.3 V microcontrollers because its open-drain RST output is compatible with any logic family that accepts 0 V low and interprets the internal 5.5 kΩ pull-up voltage (VCC-dependent) as valid high. When VCC = 5 V, the pulled-high RST sits at ~5 V - so a level-shifter or current-limiting resistor may be needed if the µP RESET# pin is not 5 V tolerant.

What is the supply current consumption of ADM1813-10AKS-RL7 at 5.5 V?

At VCC = 5.5 V and TA = −40°C to +105°C, ADM1813-10AKS-RL7 draws 9 µA (typical) to 16 µA (max) quiescent current, as specified in Table 1 under "Current" row. This ultra-low consumption enables use in always-on subsystems and extends battery life in portable equipment where ADM1813-10AKS-RL7 performs continuous supply supervision.