Analog Devices Inc. ADM13307-5ARZ

Overview

ADM13307-5ARZ from Analog Devices is a triple voltage supervisor IC designed to monitor three independent supply rails in microprocessor and DSP systems. It features one fixed 2.93 V threshold (SENSE1), two adjustable 0.6 V thresholds (SENSE2/SENSE3), 140 ms minimum reset timeout, push-pull active-high and active-low RESET outputs, and operates from 2.0 V to 5.5 V over −40°C to +85°C.

For engineers reviewing the ADM13307-5ARZ datasheet, ADM13307-5ARZ pinout, ADM13307-5ARZ application, or ADM13307-5ARZ equivalent, key selection criteria include its dual-adjustable 0.6 V sense inputs, guaranteed RESET assertion down to VDD ≥ 1.1 V, low 40 μA supply current, SOIC_N package compatibility, and manual reset (MR) support for system-level recovery.

Technical Context

The ADM13307-5ARZ implements a triple-supply monitoring architecture with one internally trimmed SENSE1 input (2.93 V nominal) and two externally programmable SENSE2/SENSE3 inputs using resistor dividers referenced to a 0.6 V internal threshold. Its reset logic asserts both RESET (active low) and RESET (active high) simultaneously upon undervoltage detection or MR activation.

Reset timing includes a minimum 140 ms timeout after all monitored supplies exceed their rising thresholds, with propagation delays under 500 ns for MR-triggered events and 30 μs for SENSEv-triggered transitions. The device guarantees valid reset output states down to VDD = 1.1 V and supports noise-immune operation via internal hysteresis (0 mV at 0.6 V, 30 mV at 2.93 V).

Key Specifications

Pinout & Package

ADM13307-5ARZ is housed in an 8-lead narrow-body SOIC (SOIC_N, JEDEC MS-012-AA, package code R-8), measuring 4.90 mm × 3.90 mm × 1.75 mm with 1.27 mm lead pitch. This RoHS-compliant surface-mount package supports standard reflow profiles and provides mechanical robustness for automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6816TPA+ and TPS3808G33DBVR, ADM13307-5ARZ uniquely combines one fixed 2.93 V channel with two 0.6 V adjustable channels in a single SOIC-8 package, enabling compact, flexible supervision of mixed-voltage systems without external trimming components or multiple ICs.

Availability

ADM13307-5ARZ is available at Aetrix Electronics and suitable for industrial automation, portable medical instrumentation, and wireless infrastructure requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for ADM13307-5ARZ 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 ADM13307 family delivers precision triple-supply monitoring for microprocessor-based systems, emphasizing low-power operation, wide voltage range, and flexible threshold configuration to simplify power sequencing in complex embedded platforms.

FAQ

What is the exact fixed threshold voltage for SENSE1 on the ADM13307-5ARZ?

The ADM13307-5ARZ has a factory-trimmed SENSE1 threshold of 2.93 V (typical), with guaranteed range of 2.90 V to 2.98 V across −40°C to +85°C. This is specifically calibrated to supervise a nominal 3.3 V supply rail and is documented in Table 2 of the ADM13307 Rev. 0 datasheet.

Can the ADM13307-5ARZ monitor a 1.2 V supply directly on SENSE2 or SENSE3?

No - SENSE2 and SENSE3 on the ADM13307-5ARZ reference an internal 0.6 V comparator. To monitor a 1.2 V rail, connect it to SENSE2 or SENSE3 via a 1:1 resistor divider (e.g., two equal-value resistors) so the divided voltage equals 0.6 V when the rail is at 1.2 V. The ADM13307-5ARZ itself does not accept direct 1.2 V input on those pins.

Does the ADM13307-5ARZ require external capacitors for reset timing?

No - the ADM13307-5ARZ integrates a precision internal oscillator and timer circuit to generate its 140 ms (minimum) reset timeout. No external RC network or capacitor is needed, simplifying layout and improving timing accuracy across temperature and voltage variations.

What is the minimum VDD voltage at which ADM13307-5ARZ guarantees valid RESET output states?

The ADM13307-5ARZ guarantees correct RESET and RESET output logic states for VDD ≥ 1.1 V. Below this, output behavior is undefined. This feature ensures reliable reset assertion during brownout conditions before full power-up, as confirmed in the General Description and Specifications sections of the datasheet.

Is the ADM13307-5ARZ pin-compatible with other variants in the ADM13307 family?

Yes - all ADM13307 variants, including ADM13307-5ARZ, share identical 8-lead SOIC_N (R-8) pinout and footprint. SENSE1, SENSE2, SENSE3, GND, RESET, RESET, MR, and VDD assignments are consistent across the family, enabling drop-in replacement when threshold configurations align with system requirements.