Analog Devices Inc. ADM1810-5ARTZ-RL7

Overview

ADM1810-5ARTZ-RL7 from Analog Devices is a precision active-low push-pull microprocessor reset circuit designed to monitor 5 V power supplies. It features a 4.62 V typical reset threshold, 150 ms reset timeout, 9–16 µA supply current, and operates across −40°C to +105°C for industrial-grade system initialization in embedded controllers and automotive ECUs.

For engineers reviewing the ADM1810-5ARTZ-RL7 datasheet, ADM1810-5ARTZ-RL7 pinout, ADM1810-5ARTZ-RL7 application, or ADM1810-5ARTZ-RL7 equivalent, this device delivers deterministic power-on reset timing, low-quiescent-current supervision, and direct interface to µP reset inputs without external components.

Technical Context

The ADM1810-5ARTZ-RL7 integrates a precision voltage reference, comparator with hysteresis, and a 150 ms monostable delay circuit to ensure reliable power-up sequencing. Its internal trip point is factory-trimmed to 4.62 V (typ), with ±1.5% accuracy over temperature and supply range.

This variant uses an active-low push-pull output stage-asserting RST low during undervoltage and holding it low for ≥100 ms after VCC rises above threshold-enabling direct connection to microprocessors requiring active-low reset assertion with no pull-up resistor needed.

Key Specifications

Pinout & Package

ADM1810-5ARTZ-RL7 is housed in a RoHS-compliant 3-lead SOT-23 (RT-3) package, measuring 2.90 mm × 1.30 mm × 1.02 mm, with gull-wing leads and JEDEC TO-236-AB compliance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX809TRD2T and TPS3808G01DBVR, the ADM1810-5ARTZ-RL7 offers superior temperature stability (±1.5% over −40°C to +105°C), lower quiescent current, and guaranteed 150 ms fixed delay-making it optimal for high-reliability industrial and automotive reset supervision where timing consistency and low power are critical.

Availability

ADM1810-5ARTZ-RL7 is available at Aetrix Electronics and suitable for industrial PLCs, automotive ECUs, medical infusion pumps, and smart energy meters requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for ADM1810-5ARTZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The ADM181x series was engineered specifically for robust, low-cost microprocessor reset supervision in harsh environments-emphasizing precision threshold accuracy, wide temperature operation, and minimal external component count.

FAQ

What is the exact reset threshold voltage of ADM1810-5ARTZ-RL7?

The ADM1810-5ARTZ-RL7 has a factory-trimmed reset threshold of 4.62 V typical, with a guaranteed range of 4.50 V to 4.75 V across −40°C to +105°C. This value is specified in Table 1 of the Rev. F datasheet and applies exclusively to the -5 variant, confirming its suitability for 5 V supply monitoring.

Does ADM1810-5ARTZ-RL7 require an external pull-up resistor on the RST pin?

No. ADM1810-5ARTZ-RL7 features an active-low push-pull output stage, meaning it actively drives RST low during reset and high when released-no external pull-up resistor is needed. This is confirmed in the Functional Block Diagram (Figure 1) and Pin Function Descriptions (Table 3) of the datasheet.

What package type and dimensions does ADM1810-5ARTZ-RL7 use?

ADM1810-5ARTZ-RL7 uses the RT-3 (SOT-23) package: 2.90 mm × 1.30 mm × 1.02 mm body size, gull-wing leads, JEDEC TO-236-AB compliant. Dimensions are documented in Figure 15 (Page 8) of the Rev. F datasheet, and "RT-3" is explicitly listed in the Ordering Guide for this part number.

Can ADM1810-5ARTZ-RL7 monitor voltages other than 5 V?

No-ADM1810-5ARTZ-RL7 is specifically configured for 5 V supply monitoring with a 4.62 V typical threshold. Other variants (e.g., ADM1815-10ARTZ-RL7) target 3.3 V or 2.5 V rails. The "-5" suffix denotes the 4.62 V trip point, and the datasheet confirms this value applies only to -5 and -10 subtypes within the ADM1810 family.

What is the reset timeout duration for ADM1810-5ARTZ-RL7, and is it adjustable?

The ADM1810-5ARTZ-RL7 provides a fixed 150 ms typical reset timeout (100–250 ms min/max), generated by an internal monostable circuit. It is not adjustable-no external components influence timing. This is verified in Table 1 ("RESET ACTIVE TIME") and Theory of Operation (Page 7) of the Rev. F datasheet.