Analog Devices Inc. ADM6710CARJZ-REEL7

Overview

ADM6710CARJZ-REEL7 from Analog Devices is a low-voltage, high-accuracy quad-supply supervisory IC that monitors four independent power rails - IN1 = 5 V (−10%), IN2 = 3.3 V, IN3 = 1.8 V, and IN4 adjustable down to 0.62 V - with ±1.5% threshold accuracy, 200 ms reset timeout, and open-drain active-low RESET output. It operates across −40°C to +125°C and supports microprocessor reset sequencing in space-constrained telecom and server systems.

For engineers reviewing the ADM6710CARJZ-REEL7 datasheet, ADM6710CARJZ-REEL7 pinout, ADM6710CARJZ-REEL7 application, or ADM6710CARJZ-REEL7 equivalent, key selection criteria include factory-set 5 V/3.3 V/1.8 V thresholds, adjustable fourth input, guaranteed RESET validity down to IN1 or IN2 = 1 V, 35 μA quiescent current, and SOT-23-6 packaging for high-density PCB layouts.

Technical Context

The ADM6710CARJZ-REEL7 uses internal resistor-divider networks and precision 0.62 V reference to generate factory-trimmed undervoltage lockout (UVLO) thresholds for IN1 (5 V), IN2 (3.3 V), and IN3 (1.8 V), while IN4 accepts externally scaled inputs via resistor dividers. Its comparator architecture includes 0.3% hysteresis to reject noise without degrading accuracy.

RESET assertion occurs when any monitored voltage falls below its threshold; deassertion requires all inputs to exceed thresholds plus a fixed 200 ms timeout. The open-drain output pulls low through an internal 10 μA weak pull-up to IN2, remaining functional as long as IN1 or IN2 ≥ 1 V - critical for brownout resilience in multi-rail systems.

Key Specifications

Pinout & Package

ADM6710CARJZ-REEL7 is housed in a RoHS-compliant 6-lead SOT-23 package (JEDEC MO-178-AB, RJ-6), measuring 2.90 mm × 1.60 mm × 1.15 mm, optimized for automated placement and thermal performance (θ_JA = 169.5°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-supply supervisory applications.

Compared with MAX6816EUT+T and TPS3808G33DBVR, the ADM6710CARJZ-REEL7 uniquely delivers four-channel supervision with factory-set 5 V/3.3 V/1.8 V thresholds plus one scalable input - enabling single-chip coverage of complex multi-rail systems without compromising on accuracy, temperature range, or reset timing fidelity.

Availability

ADM6710CARJZ-REEL7 is available at Aetrix Electronics and suitable for telecommunications infrastructure, server/workstation platforms, and industrial embedded controllers requiring stable component supply, extended temperature qualification, and RoHS-compliant packaging.

Supply support for ADM6710CARJZ-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, with design centers worldwide and a legacy of precision power management innovation.

The ADM6710 family was engineered specifically for high-reliability, multi-supply microprocessor supervision in space- and power-constrained environments - emphasizing accuracy, glitch immunity, and extended temperature operation over basic reset generation.

FAQ

What voltage rails does the ADM6710CARJZ-REEL7 monitor by default?

The ADM6710CARJZ-REEL7 monitors four rails: IN1 at 5 V (−10% tolerance), IN2 at 3.3 V, IN3 at 1.8 V (−10%), and IN4 as an adjustable input referenced to 0.62 V. This configuration is specified in the Ordering Guide for model ADM6710CARJZ-REEL7 and confirmed in Table 4 of the Rev. B datasheet.

Does the ADM6710CARJZ-REEL7 require an external pull-up resistor on the RESET pin?

No - the ADM6710CARJZ-REEL7 features an internal 10 μA pull-up to IN2, making external pull-ups unnecessary in most 3.3 V logic interfaces. An external pull-up is only needed if interfacing with higher-voltage logic (e.g., 5 V), and even then, the internal circuitry prevents reverse current flow into IN2.

How does the ADM6710CARJZ-REEL7 handle power supply glitches?

The ADM6710CARJZ-REEL7 rejects short transients via built-in 0.3% hysteresis and glitch immunity validated to withstand ≤200 µs dips at 50 mV overdrive (Figure 7). Its comparator design ignores brief sags that do not breach the sustained threshold, preventing false resets in electrically noisy environments.

Can unused inputs on the ADM6710CARJZ-REEL7 be left floating?

No - unused inputs must never float or be grounded. Per the datasheet, they must connect to a supply voltage exceeding their specified threshold (e.g., IN1 to ≥5 V, IN3 to ≥1.8 V) or, for adjustable IN4, include a 1 MΩ series resistor to IN2 to limit bias current and prevent erroneous triggering.

What is the minimum operating voltage for RESET output validity on the ADM6710CARJZ-REEL7?

The RESET output remains valid as long as IN1 ≥ 1 V or IN2 ≥ 1 V - a key specification enabling reliable reset assertion during brownout conditions where one rail collapses slowly. This behavior is explicitly guaranteed in Table 1 footnote 2 and General Description section.