Analog Devices Inc. ADM1810-10ARTZ-RL7

Overview

ADM1810-10ARTZ-RL7 from Analog Devices is a precision active-low push-pull microprocessor reset circuit designed to monitor 4.35 V nominal power supplies in embedded systems. It delivers a guaranteed 150 ms reset timeout after power-up, sinks up to 8 mA at 0.4 V, consumes only 4–10 µA supply current, and operates across −40°C to +105°C for industrial-grade reliability in microcontroller-based controllers and instrumentation.

For engineers reviewing the ADM1810-10ARTZ-RL7 datasheet, ADM1810-10ARTZ-RL7 pinout, ADM1810-10ARTZ-RL7 application, or ADM1810-10ARTZ-RL7 equivalent, key selection criteria include its fixed 4.35 V trip point (typical), SOT-23-3 package footprint, active-low push-pull output drive capability, and compatibility with standard microprocessor reset inputs without external components.

Technical Context

The ADM1810-10ARTZ-RL7 integrates a precision voltage reference, comparator, and 150 ms internal timing circuit to generate a clean, glitch-free active-low reset signal. Its trip threshold is factory-trimmed to 4.35 V (typical) with ±1.5% tolerance over temperature, and it asserts reset when VCC falls below this level - holding low for ≥150 ms after VCC rises above threshold.

This device belongs to the ADM181x family of supervisory circuits optimized for safe system initialization. Unlike open-drain variants, the ADM1810-10ARTZ-RL7 uses a push-pull output stage that actively drives both high and low states, eliminating the need for an external pull-up resistor and ensuring deterministic logic levels under all operating conditions.

Key Specifications

Pinout & Package

ADM1810-10ARTZ-RL7 is housed in a RoHS-compliant 3-lead SOT-23 (RT-3) package with JEDEC TO-236-AB outline, measuring 2.90 mm × 1.30 mm × 1.02 mm and featuring gull-wing leads for reflow compatibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX809SEUR+T and TPS3808G12DBVR, the ADM1810-10ARTZ-RL7 offers tighter 4.35 V threshold matching for marginal 5 V rails, fixed 150 ms timing for simplified validation, and proven industrial temperature resilience - making it optimal for cost-sensitive, high-reliability embedded controllers.

Availability

ADM1810-10ARTZ-RL7 is available at Aetrix Electronics and suitable for industrial controllers, embedded instrumentation, and automotive body electronics requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for ADM1810-10ARTZ-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 product line was engineered specifically for reliable, low-cost power-supply supervision in microprocessor-based systems - emphasizing precision threshold accuracy, guaranteed reset timing, and robust operation across extended temperature ranges.

FAQ

What is the exact reset threshold voltage of the ADM1810-10ARTZ-RL7?

The ADM1810-10ARTZ-RL7 has a factory-trimmed reset threshold of 4.35 V typical, with a guaranteed range of 4.25 V (min) to 4.49 V (max) over the full −40°C to +105°C operating temperature range. This value is specified in Table 1 of the Rev. F datasheet and applies exclusively to the -10 variant, distinguishing it from the -5 (4.62 V) and other trip-point versions.

Does the ADM1810-10ARTZ-RL7 require an external pull-up resistor on the RST pin?

No, the ADM1810-10ARTZ-RL7 does not require an external pull-up resistor because it features an active-low push-pull output stage. The RST pin actively drives high (to VCC) and low (to GND), delivering defined logic levels without external components - unlike open-drain variants such as ADM1811-10ARTZ-RL7 which do require a pull-up.

What package type and footprint does the ADM1810-10ARTZ-RL7 use?

The ADM1810-10ARTZ-RL7 uses the 3-lead SOT-23-3 (RT-3) package per JEDEC TO-236-AB, with pin 1 (RST), pin 2 (VCC), and pin 3 (GND) in standard gull-wing configuration. Its dimensions are 2.90 mm × 1.30 mm × 1.02 mm, and it is RoHS-compliant (indicated by the "Z" suffix).

Can the ADM1810-10ARTZ-RL7 be used to monitor a 3.3 V supply?

No, the ADM1810-10ARTZ-RL7 is not suitable for monitoring 3.3 V supplies because its 4.35 V reset threshold exceeds the nominal rail voltage. For 3.3 V supervision, select the ADM1815-10ARTZ-RL7 (2.88 V threshold) or ADM1817-10ARTZ-RL7 (also 2.88 V), both of which are explicitly rated for 3 V/3.3 V supply monitoring per the datasheet's ordering guide and functional descriptions.

What is the maximum sink current capability of the ADM1810-10ARTZ-RL7 RST output?

The ADM1810-10ARTZ-RL7 RST output can sink up to 8 mA while maintaining VOL ≤ 0.4 V, as specified in the "RST Output Sink Current" parameter under VCC ≥ 2.7 V and reset asserted conditions. This drive strength supports direct connection to most microprocessor reset inputs, including those with high capacitive loading or long trace lengths.