Analog Devices Inc./Maxim Integrated MAX6710EUT+T

Overview

MAX6710EUT+T from Analog Devices is a quad-voltage microprocessor supervisory IC that monitors adjustable, 3.3V, 2.5V, and 1.8V supply rails with -10% tolerance thresholds, asserts a single active-low open-drain RESET output upon any undervoltage condition, and provides a guaranteed 140ms minimum reset timeout period - used in high-reliability embedded systems requiring multi-rail power integrity assurance.

For engineers reviewing the MAX6710EUT+T datasheet, MAX6710EUT+T pinout, MAX6710EUT+T application, or MAX6710EUT+T equivalent, this device serves as a precision, low-power, SOT23-6 supervisory solution for telecom, industrial, and computing platforms where simultaneous monitoring of mixed-voltage domains (e.g., 3.3V I/O, 2.5V core, 1.8V memory) and deterministic reset timing are critical.

Technical Context

The MAX6710EUT+T implements four independent voltage comparators tied to an internal 0.62V bandgap reference, with three factory-trimmed thresholds (3.3V, 2.5V, 1.8V at -10%) and one adjustable input (IN1) configured via external resistor divider. Its NOR-gated reset logic ensures RESET remains asserted until all monitored voltages exceed their thresholds and the internal timeout timer completes.

Power is derived from IN2 (3.3V), which also serves as the monitored rail and internal pullup source for the open-drain RESET output (10μA weak pullup). RESET validity is maintained down to IN1 = 1V or IN2 = 1V, enabling operation during brown-out conditions without loss of reset state integrity.

Key Specifications

Pinout & Package

MAX6710EUT+T is housed in a RoHS-compliant 6-pin SOT23-6 package (outline 21-0058), with 0.95mm pitch, 2.9mm × 1.6mm footprint, and thermal pad omitted - suitable for high-density PCB layouts and reflow assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6710DUT+T and TPS3808G33DBVR, the MAX6710EUT+T uniquely combines adjustable IN1 supervision with fixed 3.3V/2.5V/1.8V monitoring in a pin-compatible SOT23-6 package - delivering unmatched flexibility for mixed-voltage SoC power sequencing without layout changes.

Availability

MAX6710EUT+T is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and embedded server applications requiring stable component supply, long-lifecycle support, and guaranteed -40°C to +105°C operation.

Supply support for MAX6710EUT+T 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 MAX6710EUT+T belongs to Analog Devices' precision μP supervisory product line, engineered specifically for multi-rail power integrity in space-constrained, thermally demanding embedded systems - emphasizing accuracy, low power, and robust transient immunity.

FAQ

What is the exact reset timeout duration of the MAX6710EUT+T?

The MAX6710EUT+T guarantees a minimum reset timeout period of 140ms after all monitored voltages rise above their thresholds, with typical value of 200ms and maximum of 280ms. This fixed internal timer eliminates external RC components and ensures consistent processor initialization timing across temperature and voltage variations - a key design advantage over adjustable-reset supervisors.

Which supply rail powers the MAX6710EUT+T, and how does it affect RESET functionality?

The MAX6710EUT+T is powered from IN2 (3.3V), which is both the monitored supply and the internal pullup source for the open-drain RESET output. RESET remains valid as long as IN2 ≥ 1.0V, enabling reliable reset assertion even during partial brown-out conditions - unlike VCC-powered supervisors that fail below their supply minimum.

Can the MAX6710EUT+T monitor a 5.0V supply?

No - the MAX6710EUT+T variant is specifically configured to monitor IN1 (adjustable), IN2 (3.3V), IN3 (2.5V), and IN4 (1.8V), all with -10% tolerance. For 5.0V supervision, select MAX6710AUT+T or MAX6710BUT+T; the MAX6710EUT+T does not include a 5.0V threshold option per its Selector Guide top mark AAZE.

How is the adjustable threshold on IN1 set, and what accuracy can be expected?

The MAX6710EUT+T's IN1 uses an internal 0.62V reference; external resistor dividers set the effective threshold as V_TH = 0.62V × (R1 + R2)/R2. With ≤±0.4μA input bias current and 1.5% reference accuracy, total threshold error remains within ±2.5% using standard 1% resistors - sufficient for most non-critical auxiliary rail monitoring.

Is the MAX6710EUT+T pin-compatible with other MAX6710 variants in SOT23-6?

Yes - all MAX6710xUT+T variants (including MAX6710EUT+T) share identical 6-pin SOT23-6 pinout, footprint, and thermal characteristics per outline 21-0058. This allows drop-in replacement between variants (e.g., swapping EUT for DUT) without PCB modification, provided the monitored voltage configuration matches system requirements.