Analog Devices Inc. ADM6710GARJZ-REEL7

Overview

ADM6710GARJZ-REEL7 from Analog Devices is a low-voltage, high-accuracy triple-supply supervisory IC that monitors IN1 = 5 V (−10%), IN2 = 3.3 V (monitored supply and power source), and two adjustable inputs (IN3/IN4) with 0.62 V internal reference (±1.5% accuracy). It delivers active-low open-drain RESET with 200 ms typical timeout, operates from −40°C to +125°C, and draws only 35 μA, making it suitable for space-constrained industrial microprocessor systems requiring robust power-up sequencing and brownout detection.

For engineers reviewing the ADM6710GARJZ-REEL7 datasheet, ADM6710GARJZ-REEL7 pinout, ADM6710GARJZ-REEL7 application, or ADM6710GARJZ-REEL7 equivalent, key selection criteria include factory-set 5 V/3.3 V thresholds, dual adjustable monitoring capability, guaranteed RESET validity down to IN1 or IN2 = 1 V, SOT-23-6 packaging, and glitch-immune undervoltage lockout behavior in harsh thermal environments.

Technical Context

The ADM6710GARJZ-REEL7 implements four independent voltage comparators with internal 0.62 V reference and factory-trimmed thresholds for fixed inputs. IN1 is preconfigured for 5 V (−10% tolerance), IN2 serves as both monitored 3.3 V supply and primary power source, while IN3 and IN4 are fully adjustable via external resistor dividers. All comparators feature 0.3% threshold hysteresis to suppress noise-induced false resets.

Its RESET output is open-drain with 10 μA internal pull-up to IN2, remains valid as long as IN1 ≥ 1 V or IN2 ≥ 1 V, and asserts low when any input falls below its threshold. After recovery, RESET stays low for 140–280 ms before deassertion - a timeout generated by an on-chip RC circuit, not dependent on external components.

Key Specifications

Pinout & Package

ADM6710GARJZ-REEL7 is housed in a RoHS-compliant, 6-lead SOT-23 (RJ-6) package measuring 2.90 mm × 1.60 mm × 1.15 mm, optimized for high-density PCB layouts and reflow-compatible assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6326US33D3+T and TPS3808G33DBVR, the ADM6710GARJZ-REEL7 provides integrated triple-supply monitoring with factory-set 5 V/3.3 V thresholds and two adjustable inputs - reducing component count, PCB area, and inter-rail timing skew versus discrete solutions.

Availability

ADM6710GARJZ-REEL7 is available at Aetrix Electronics and suitable for industrial PLCs, telecom line cards, and automotive ADAS domain controllers requiring stable component supply, extended temperature qualification, and compact triple-rail supervision.

Supply support for ADM6710GARJZ-REEL7 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 ADM6710 family was designed specifically for high-reliability, multi-rail power monitoring in harsh-environment systems - emphasizing accuracy, temperature stability, and integration of fixed + adjustable thresholds in minimal footprint.

FAQ

What voltage rails does the ADM6710GARJZ-REEL7 supervise?

The ADM6710GARJZ-REEL7 supervises three distinct rails: IN1 is factory-set to monitor 5 V (−10% threshold = 4.50 V), IN2 serves as both the 3.3 V monitored supply and primary power source, and IN3/IN4 are independently adjustable using external resistor dividers referenced to the internal 0.62 V comparator threshold. This configuration enables precise, flexible supervision of heterogeneous power domains without external references or timing components.

How does the RESET output behave during deep brownout conditions?

The ADM6710GARJZ-REEL7 maintains valid RESET output state as long as IN1 ≥ 1 V or IN2 ≥ 1 V - meaning it continues asserting RESET even when the 3.3 V supply collapses to 1.0 V, far below nominal. This behavior ensures fail-safe operation during severe undervoltage events, unlike many supervisors that lose functionality below 2 V. The open-drain RESET with 10 μA internal pull-up to IN2 remains functional across this full range.

Can unused inputs be left floating on the ADM6710GARJZ-REEL7?

No - unused inputs on the ADM6710GARJZ-REEL7 must never be left floating or grounded. For unused adjustable inputs (IN3 or IN4), Analog Devices specifies connecting a 1 MΩ series resistor between the pin and IN2 to limit bias current while maintaining a defined voltage above threshold. Floating inputs risk false resets due to noise coupling, and grounding forces continuous RESET assertion, violating functional safety requirements in certified systems.

What is the accuracy and temperature drift of the adjustable threshold in ADM6710GARJZ-REEL7?

The internal 0.62 V reference in ADM6710GARJZ-REEL7 has ±1.5% initial accuracy and a temperature coefficient of 60 ppm/°C, resulting in < ±0.1% drift over −40°C to +125°C. When used with precision external resistors (e.g., 0.1% tolerance, 25 ppm/°C), the overall adjustable threshold accuracy remains within ±2.0% across temperature - sufficient for monitoring 1.2 V, 1.8 V, or 2.5 V rails in industrial applications where absolute precision is secondary to monotonic fault detection.

Does ADM6710GARJZ-REEL7 require external capacitors for stable operation?

The ADM6710GARJZ-REEL7 requires no external timing capacitors - its 200 ms reset timeout is generated internally. However, Analog Devices recommends placing a 0.1 μF ceramic capacitor between IN2 and GND to improve noise immunity on the power input, especially in switching power supply environments. Additional 0.1 μF caps on IN1, IN3, or IN4 further suppress high-frequency transients but are optional based on system EMI profile.