Analog Devices Inc. ADM1810-10ART-RL7

Overview

ADM1810-10ART-RL7 from Analog Devices is a precision active-low push-pull microprocessor reset circuit designed to monitor 5 V power supplies. It features a 4.35 V typical reset threshold, 150 ms reset timeout, and operates across −40°C to +105°C. The device ensures safe system initialization in embedded controllers and industrial microprocessor systems by holding reset until supply stabilization.

For engineers reviewing the ADM1810-10ART-RL7 datasheet, ADM1810-10ART-RL7 pinout, ADM1810-10ART-RL7 application, or ADM1810-10ART-RL7 equivalent, key selection criteria include trip point accuracy (±1.5% over temperature), ultra-low quiescent current (≤16 µA at 5.5 V), push-pull output drive capability (350 µA source / 8 mA sink), and SOT-23 package compatibility with space-constrained PCB layouts.

Technical Context

The ADM1810-10ART-RL7 integrates a precision voltage reference, comparator, and 150 ms internal timing delay to generate a clean, glitch-free active-low reset signal. Its push-pull output eliminates external pull-up requirements and directly interfaces with standard microprocessor reset inputs without additional components.

It uses an internal bandgap reference with temperature compensation to maintain trip point stability (±0.5% typical drift over −40°C to +105°C) and incorporates hysteresis to prevent chatter during slow-rising or noisy supply transitions. The device asserts reset when VCC falls below 4.25 V (min) and releases after VCC exceeds 4.49 V (max), with guaranteed 100–250 ms active duration.

Key Specifications

Pinout & Package

ADM1810-10ART-RL7 is housed in a 3-lead SOT-23 (RT-3) package, measuring 2.90 mm × 1.30 mm × 1.02 mm, with JEDEC TO-236-AB compliance and 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 MAX809TRD2T-T and TPS3808G12DBVR, ADM1810-10ART-RL7 offers superior temperature range (−40°C to +105°C), tighter threshold accuracy (±1.5%), and integrated 150 ms timing-making it optimal for industrial and automotive applications demanding guaranteed reset behavior without external components.

Availability

ADM1810-10ART-RL7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, and medical handheld diagnostics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ADM1810-10ART-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 engineered specifically for robust microprocessor reset supervision in harsh environments, emphasizing precision threshold stability, wide temperature operation, and minimal external component count for mission-critical embedded systems.

FAQ

What is the exact reset threshold voltage for ADM1810-10ART-RL7?

The ADM1810-10ART-RL7 has a specified reset threshold of 4.35 V typical, with a guaranteed range of 4.25 V (minimum) to 4.49 V (maximum) over the full −40°C to +105°C operating temperature range. This value is confirmed in Table 1 of the Rev. F datasheet and applies specifically to the -10 variant, distinguishing it from the -5 (4.62 V) and other trip-point versions in the ADM181x family.

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

No, ADM1810-10ART-RL7 does not require an external pull-up resistor because it features an active-low push-pull output stage. The RST pin drives actively high (to VCC) and actively low (to GND), delivering rail-to-rail logic levels with 350 µA source and 8 mA sink capability-enabling direct interface with most microprocessor reset inputs per Figure 13 in the datasheet.

What package type and dimensions does ADM1810-10ART-RL7 use?

ADM1810-10ART-RL7 uses the 3-lead SOT-23 (RT-3) package, with dimensions of 2.90 mm × 1.30 mm × 1.02 mm and JEDEC TO-236-AB compliance. Pin 1 is RST, Pin 2 is VCC, and Pin 3 is GND, as defined in Figure 2 and Table 3 of the Rev. F datasheet-distinct from SC70 variants like ADM1810-10AKSZ-RL7.

Can ADM1810-10ART-RL7 monitor voltages below 5 V, such as 3.3 V or 2.5 V rails?

No, ADM1810-10ART-RL7 is specifically configured for 5 V supply monitoring with a 4.35 V typical threshold. For 3.3 V or 2.5 V rails, Analog Devices specifies other members of the ADM181x family-such as ADM1815-10ART-RL7 (2.88 V) or ADM1815-20ART-RL7 (2.55 V)-which share the same SOT-23 package but feature different internal reference networks calibrated for lower voltages.

What is the reset timeout duration and how is it implemented in ADM1810-10ART-RL7?

The ADM1810-10ART-RL7 provides a fixed 150 ms typical reset timeout (100–250 ms guaranteed range) from the moment VCC rises above the threshold until RST deasserts. This delay is generated by an internal RC timing circuit-not software-configurable-and ensures safe power supply stabilization before releasing the microprocessor, as detailed in the "Timing Diagrams" section (Pages 7–8) of the Rev. F datasheet.