Analog Devices Inc./Maxim Integrated MAX6034AEXR41

Overview

MAX6034AEXR41 from Maxim Integrated is a precision, micropower, low-dropout series voltage reference delivering 4.096V output with ±0.2% initial accuracy, 30ppm/°C max temperature coefficient, and 200mV max dropout at 1mA load - designed for high-accuracy data acquisition and battery-powered instrumentation.

For engineers reviewing the MAX6034AEXR41 datasheet, MAX6034AEXR41 pinout, MAX6034AEXR41 application, or MAX6034AEXR41 equivalent, this page provides verified electrical specifications, SC70-3 package details, load/transient stability behavior, supply-current independence from VIN, and real-world selection guidance against comparable references.

Technical Context

The MAX6034AEXR41 employs a proprietary curvature-corrected bandgap core with laser-trimmed thin-film resistors to achieve <30ppm/°C TC and ±0.2% initial tolerance across –40°C to +85°C. Its series-mode architecture eliminates external biasing resistors and enables stable operation without output capacitors.

It draws only 95–125µA quiescent current (with ≤16µA/V variation over input voltage), sources up to 1mA, sinks up to 200µA, and maintains regulation with input as low as VOUT + 200mV - enabling use in ultra-low-voltage systems where headroom is constrained.

Key Specifications

Pinout & Package

MAX6034AEXR41 is housed in a 3-pin SC70-3 surface-mount package (2.0mm × 2.1mm × 0.9mm), optimized for high-density PCB layouts and reflow compatibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6034AEXR41, ADR3440BRJZ-R7 offers superior TC and accuracy at the expense of size and cost, while REF3040AIDBZR trades TC and drive capability for lower I_Q - making MAX6034AEXR41 the optimal balance of SC70 size, 1mA drive, 30ppm/°C TC, and 95µA I_Q for space-constrained industrial DAQ.

Availability

MAX6034AEXR41 is available at Aetrix Electronics and suitable for portable data loggers, industrial 4–20mA transmitters, and medical patient monitors requiring stable component supply with guaranteed long-term continuity.

Supply support for MAX6034AEXR41 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 and mixed-signal ICs for industrial, medical, and communications applications, with emphasis on low-power, high-accuracy performance.

The MAX6034 family targets battery-operated and space-constrained systems needing micropower, low-dropout, SC70-packaged voltage references - specifically addressing the needs of portable instrumentation and high-resolution data acquisition.

FAQ

What is the maximum input voltage rating for MAX6034AEXR41?

The absolute maximum input voltage for MAX6034AEXR41 is +6.0V referenced to GND. Operation above this level risks permanent damage. The recommended operating range is VOUT + 0.2V (i.e., ≥4.296V) to 5.5V, per the datasheet's input voltage specification and line-regulation test conditions. Exceeding 5.5V violates guaranteed performance and may degrade long-term stability.

Does MAX6034AEXR41 require an external output capacitor for stability?

No, MAX6034AEXR41 does not require an external output capacitor for stability. It is internally compensated and remains stable with load capacitance from 0 to 1µF. Adding a capacitor (e.g., 100nF) may improve transient response under step-load conditions but is optional - a key advantage for ultra-compact PCB layouts where every mm² matters.

What is the typical turn-on settling time for MAX6034AEXR41?

The typical turn-on settling time for MAX6034AEXR41 is 260µs to within 0.1% of final 4.096V output, measured with C_OUT = 50pF at TA = +25°C. This value increases at temperature extremes and under minimum dropout conditions, reaching up to 1.25ms in worst-case scenarios - a critical parameter for wake-up timing in low-power microcontroller systems.

Can MAX6034AEXR41 sink current, and how much?

Yes, MAX6034AEXR41 can sink up to 200µA while maintaining output regulation. This capability supports active pull-down of reference nodes in ratiometric sensor interfaces or biasing of current-sinking DACs. Sinking beyond 200µA causes VOUT to deviate by more than 0.2%, as defined by the dropout specification - confirmed in the "ELECTRICAL CHARACTERISTICS–MAX6034_41" table.

How does the supply current of MAX6034AEXR41 vary with input voltage?

MAX6034AEXR41 exhibits supply-current variation of ≤16µA/V across its input range (4.296V to 5.5V), meaning I_IN changes by no more than ~20µA over the full operating VIN span. This near-constant current draw simplifies power budgeting in multi-rail systems and minimizes interaction between reference and digital supply domains - a key differentiator versus shunt references.