Analog Devices Inc. ADM13307-4ARZ

Overview

ADM13307-4ARZ from Analog Devices is a triple voltage supervisor IC designed to monitor three independent supply rails-specifically configured with one fixed 2.25 V threshold (SENSE1) and two adjustable 0.6 V thresholds (SENSE2, SENSE3)-in microprocessor and DSP systems. It operates from 2.0 V to 5.5 V, delivers ≤40 μA supply current, features 140 ms minimum reset timeout, and asserts both active-high and active-low push-pull RESET outputs valid down to VDD ≥ 1.1 V.

For engineers reviewing the ADM13307-4ARZ datasheet, ADM13307-4ARZ pinout, ADM13307-4ARZ application, or ADM13307-4ARZ equivalent, key selection criteria include its dual-adjustable 0.6 V sense inputs, −40°C to +85°C industrial temperature range, 8-lead SOIC_N package, and manual reset (MR) support for system-level fault recovery.

Technical Context

The ADM13307-4ARZ implements a triple-supply monitoring architecture with one internally trimmed SENSE1 input (2.25 V typical falling threshold) and two externally programmable SENSEv inputs (0.6 V nominal threshold), each requiring external resistor dividers to scale higher monitored voltages. Its reset logic combines power-on detection at VDD ≥ 1.1 V with hysteresis-enabled undervoltage supervision and a fixed 140–280 ms timeout window.

It integrates dual complementary reset outputs (RESET and RESET) with push-pull drivers capable of sourcing up to −3 mA and sinking up to 3 mA, while the MR input accepts standard TTL/CMOS logic levels (VIH = 0.7×VDD, VIL = 0.3×VDD) and triggers a full reset timeout upon low assertion. All SENSEv inputs exhibit nanoscale leakage (±25 nA) and support glitch-immune pulse rejection (≥30 μs minimum pulse width).

Key Specifications

Pinout & Package

ADM13307-4ARZ is housed in an 8-lead narrow-body SOIC package (JEDEC MS-012-AA, R-8), measuring 4.90 mm × 3.90 mm × 1.75 mm, with 1.27 mm lead pitch and RoHS-compliant finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6816TPA+ and TPS3808G33DBVR, the ADM13307-4ARZ uniquely balances integration (three independent sense channels), flexibility (dual 0.6 V adjustable inputs), and industrial temperature compliance in a compact SOIC footprint-reducing component count while preserving design adaptability across diverse voltage domains.

Availability

ADM13307-4ARZ is available at Aetrix Electronics and suitable for industrial automation, portable medical devices, wireless infrastructure, and notebook platform management requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for ADM13307-4ARZ 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, with design centers and manufacturing facilities worldwide.

The ADM13307 family was developed to address the growing demand for integrated, low-power, multi-rail supervision in space-constrained embedded systems-particularly where programmable thresholds and guaranteed reset behavior across voltage and temperature extremes are critical.

FAQ

What voltage rails does the ADM13307-4ARZ monitor by default?

The ADM13307-4ARZ monitors one fixed 2.25 V threshold on SENSE1 (for 2.5 V supplies) and two adjustable 0.6 V thresholds on SENSE2 and SENSE3. These latter inputs require external resistor dividers to supervise higher voltages such as 1.2 V, 1.8 V, or 3.3 V rails. The device does not support internal trimming for those inputs-scaling is strictly external and design-dependent.

Can the ADM13307-4ARZ generate a valid reset signal when VDD is below 2.0 V?

Yes-the ADM13307-4ARZ asserts RESET and RESET outputs as soon as VDD reaches 1.1 V, and maintains valid logic states down to that level. This behavior is explicitly guaranteed in the datasheet and enables early-fail-safe reset signaling during slow power ramps or brownout conditions, even before the main supply reaches its nominal operating range.

How does the manual reset (MR) pin interact with the automatic supervision logic?

When MR is pulled low, the ADM13307-4ARZ immediately asserts both RESET and RESET outputs and holds them active for the full reset timeout period (140–280 ms), regardless of SENSEv input states. This overrides ongoing supervision and provides deterministic, user-initiated reset control-ideal for debugging, firmware updates, or emergency recovery sequences.

Is the ADM13307-4ARZ pin-compatible with other models in the ADM13307 family?

Yes-all ADM13307 variants, including ADM13307-4ARZ, ADM13307-5ARZ, and ADM13307-33ARZ, share identical 8-lead SOIC_N (R-8) pinouts and electrical interfaces. However, threshold configurations differ: ADM13307-4ARZ uses one fixed 2.25 V and two 0.6 V adjustable inputs, whereas ADM13307-33ARZ uses two fixed thresholds (2.93 V, 1.68 V) and one 1.25 V adjustable input.

What is the maximum recommended load capacitance for the RESET and RESET outputs?

The ADM13307-4ARZ RESET and RESET outputs are characterized with CL = 50 pF in timing specifications, and the datasheet confirms stable switching performance under this condition. While the push-pull drivers can drive heavier loads, exceeding 50 pF may increase propagation delay and reduce edge rate-designers should verify timing margins in-system if driving long traces or multiple gate inputs.