Analog Devices Inc./Maxim Integrated MAX6034AEXR41-T

Overview

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

For engineers reviewing the MAX6034AEXR41-T datasheet, MAX6034AEXR41-T pinout, MAX6034AEXR41-T application, or MAX6034AEXR41-T equivalent, this page delivers verified electrical specs, SC70-3 package details, real-world load/transient behavior, and validated alternatives for precision analog signal chains requiring <100ppm/1000hr long-term stability and 0–1µF capacitive-load compatibility.

Technical Context

The MAX6034AEXR41-T employs a proprietary curvature-corrected bandgap core with laser-trimmed thin-film resistors to achieve 7ppm/°C typical temperature coefficient and ±0.2% initial tolerance across –40°C to +85°C. Its series-mode architecture eliminates external current-setting resistors and enables supply-current independence (≤16µA/V variation) over 4.296V–5.5V input range.

Internally compensated for stability with 0–1µF load capacitance, it delivers 95–125µA quiescent current, supports 1mA sourcing and 200µA sinking, and achieves 260µs turn-on settling to 0.1% with 50pF load-critical for fast-sampling data acquisition systems where reference settling directly limits effective throughput.

Key Specifications

Pinout & Package

MAX6034AEXR41-T is housed in a miniature 3-pin SC70-3 surface-mount package (1.25mm × 2.0mm × 0.9mm), optimized for high-density PCB layouts in handheld and IoT edge devices.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADR3440BRJZ-R7 and REF3040AIDBZR, the MAX6034AEXR41-T uniquely balances ±0.2% accuracy, 30ppm/°C tempco, 95–125µA supply current, and 0–1µF capacitor-free operation in SC70-3-making it optimal for industrial and medical data acquisition where space, power, and parametric consistency are simultaneously constrained.

Availability

MAX6034AEXR41-T is available at Aetrix Electronics and suitable for portable data loggers, medical vital sign monitors, and industrial PLC analog inputs requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for MAX6034AEXR41-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

Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, medical, and communications applications.

The MAX6034 family was designed specifically for precision, low-power, space-constrained voltage reference needs in data acquisition, portable instrumentation, and battery-operated systems-emphasizing micropower operation, SC70 packaging, and curvature-corrected bandgap stability.

FAQ

What is the maximum input voltage for MAX6034AEXR41-T?

The MAX6034AEXR41-T supports an absolute maximum input voltage of +6.0V referenced to GND. However, its specified operating input range is (VOUT + 200mV) to 5.5V, i.e., 4.296V to 5.5V. Operation above 5.5V violates the guaranteed specifications and risks permanent damage. The device draws only 95–125µA quiescent current within this valid range, making MAX6034AEXR41-T highly efficient for regulated 5V rail applications.

Does MAX6034AEXR41-T require an external output capacitor?

No, MAX6034AEXR41-T is internally compensated and stable with 0–1µF load capacitance-no external output capacitor is required. This eliminates a common passive component, reduces PCB area, and avoids capacitor-related aging or ESR instability. While adding up to 1µF improves transient response during large load steps, MAX6034AEXR41-T maintains regulation and stability even with zero output capacitance, a key advantage in ultra-miniaturized designs.

What is the dropout voltage specification for MAX6034AEXR41-T at full load?

The dropout voltage for MAX6034AEXR41-T is defined as the minimum (VIN – VOUT) differential required to maintain VOUT within 0.2% of its nominal value. At 1mA output current, the maximum dropout voltage is 200mV. This means the device regulates properly down to VIN = 4.296V (4.096V + 0.2V). Dropout remains ≤200mV across –40°C to +85°C, enabling reliable operation from marginal supplies like partially discharged batteries or tightly regulated DC-DC outputs.

How does the temperature coefficient of MAX6034AEXR41-T impact 12-bit ADC accuracy?

With a maximum temperature coefficient of 30ppm/°C, MAX6034AEXR41-T contributes ≤±3.75mV drift over a 125°C span (–40°C to +85°C). For a 4.096V reference driving a 12-bit ADC (LSB = 1V), this equates to ≤±3.75 LSB error solely from reference drift-well within the ±0.5 LSB total unadjusted error budget for many industrial sensors. The curvature-correction circuit ensures this spec is met without external trimming, preserving system-level calibration integrity.

Can MAX6034AEXR41-T sink current, and if so, how much?

Yes, MAX6034AEXR41-T can sink up to 200µA while maintaining output regulation. This capability allows it to drive loads that draw reverse current-such as certain op-amp input stages, comparator hysteresis networks, or pull-down paths in precision bias circuits. Sinking 200µA induces ≤9.8mV output change (load regulation), and the device remains stable without oscillation. This dual sourcing/sinking functionality increases design flexibility compared to shunt references that cannot sink current.