Analog Devices Inc./Maxim Integrated MAX4210AEUA+

Overview

MAX4210AEUA+ from Maxim Integrated is a high-side power/current monitor IC that delivers analog voltage outputs proportional to load power (V_POUT) and current (V_IOUT) via real-time multiplication of sensed current and source voltage. It features 25:1 internal resistor-divider, ±1.5% max current-sense accuracy, 150mV full-scale sense voltage, +4V to +28V input common-mode range, and operates from +2.7V to +5.5V supply. It is used in smart battery chargers and overpower circuit breakers where ground-path integrity is critical.

For engineers reviewing the MAX4210AEUA+ datasheet, MAX4210AEUA+ pinout, MAX4210AEUA+ application, or MAX4210AEUA+ equivalent, key selection criteria include its fixed 25:1 internal gain ratio, 8-pin µMAX® package, -40°C to +85°C temperature rating, low 380µA supply current, and compatibility with high-side sensing in battery-powered systems without ground disruption.

Technical Context

The MAX4210AEUA+ implements a precision analog multiplier architecture combining a high-side current-sense amplifier with an integrated 25:1 resistor-divider network to generate V_POUT = 0.667 × V_SENSE × V_RS+. Its current-sense amplifier provides 16.67V/V gain and supports 150mV full-scale input, enabling accurate measurement across wide load voltage ranges.

It operates as a two-output analog monitor: IOUT delivers current-proportional voltage (VIOUT = 16.67 × VSENSE), while POUT delivers power-proportional voltage (VPOUT = 0.667 × VSENSE × VRS+). The device requires no external gain-setting resistors and maintains ±1.5% total output error over temperature and supply variations.

Key Specifications

Pinout & Package

MAX4210AEUA+ is housed in an 8-pin µMAX® package (3mm × 3mm, 0.5mm pitch) with exposed pad for thermal enhancement. Pin 1 is GND; pins 2, 3, and 6 are No Connect (N.C.) internally. The package supports reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side power monitoring applications.

Compared with MAX4210AETT-T, the MAX4210AEUA+ trades thermal performance and footprint for easier assembly and compatibility with µMAX socket footprints; compared with MAX4211AEUB+, it omits comparators and reference to reduce cost, size, and supply current-making it optimal for pure analog monitoring tasks.

Availability

MAX4210AEUA+ is available at Aetrix Electronics and suitable for smart battery packs, overpower circuit breakers, and power-supply displays requiring stable component supply, long-term manufacturability, and guaranteed extended temperature operation (-40°C to +85°C).

Supply support for MAX4210AEUA+ 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

Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for industrial, computing, and communications markets.

The MAX4210/MAX4211 family was engineered specifically for high-side power and current monitoring in battery-powered and high-voltage DC systems-emphasizing accuracy, low power, and ground-path preservation.

FAQ

What is the function of the N.C. pins on the MAX4210AEUA+?

The MAX4210AEUA+ has three No Connect (N.C.) pins-pins 2, 3, and 6-internally unconnected and electrically isolated. They may be left floating or tied to GND for mechanical stability during PCB assembly. These pins do not affect MAX4210AEUA+ operation and are a result of shared die design across multiple variants in the MAX4210 family.

Does the MAX4210AEUA+ require external resistors for gain setting?

No. The MAX4210AEUA+ integrates a precision 25:1 resistor-divider network, eliminating the need for external gain-setting components. This distinguishes it from MAX4210D/E/F variants and ensures consistent 0.667 1/V power gain and 16.67V/V current gain without calibration or layout dependencies.

What is the maximum common-mode voltage the MAX4210AEUA+ can handle at RS+?

The MAX4210AEUA+ supports a common-mode input voltage range of +4V to +28V at the RS+ pin. This allows direct high-side monitoring of 12V and 24V industrial or automotive power rails without level-shifting circuitry-enabling robust, ground-referenced measurements in the MAX4210AEUA+'s native operating domain.

How does the MAX4210AEUA+ differ from the MAX4211 series?

The MAX4210AEUA+ is a simplified, low-cost variant without comparators or reference output. Unlike the MAX4211, it lacks open-drain comparator outputs and the 1.21V bandgap reference. Its 380µA supply current is significantly lower than the MAX4211's 670µA, making MAX4210AEUA+ ideal for power-sensitive applications where only analog IOUT/POUT outputs are needed.

Can the MAX4210AEUA+ be used with a 3.3V supply?

Yes. The MAX4210AEUA+ operates over +2.7V to +5.5V, fully supporting 3.3V nominal supply rails. At VCC = 3.3V, its POUT and IOUT outputs remain functional with rail-to-rail swing capability, and its ±1.5% accuracy and 220kHz bandwidth are maintained-ensuring reliable performance in modern low-voltage embedded systems using MAX4210AEUA+.