Analog Devices Inc./Maxim Integrated MAX6041BEUR-T

Overview

MAX6041BEUR-T from Analog Devices is a precision, low-dropout, micropower series-mode voltage reference in SOT23-3 package, delivering 4.096V output with ±0.2% initial accuracy, <20ppm/°C temperature coefficient over –40°C to +85°C, and 100mV dropout at 500μA load - enabling high-accuracy ADC/DAC biasing in space-constrained battery-powered systems.

For engineers reviewing the MAX6041BEUR-T datasheet, MAX6041BEUR-T pinout, MAX6041BEUR-T application, or MAX6041BEUR-T equivalent, key selection criteria include its supply-current independence (0.8μA/V variation), 2.2nF capacitive-load stability without external compensation, ±500μA sourcing/sinking capability, and compatibility with low-voltage analog signal chains requiring stable 4.096V reference rails.

Technical Context

The MAX6041BEUR-T employs a proprietary curvature-corrected bandgap core with laser-trimmed thin-film resistors, achieving <20ppm/°C TC over full industrial temperature range and 0.2% initial accuracy. Its series-mode architecture eliminates need for external bias resistors and supports operation down to V_IN = V_OUT + 0.2V.

Internally compensated for stability with 0–2.2nF load capacitance, it delivers 100mV dropout at 500μA, 25μV/V line regulation, and 0.15–0.70μV/μA load regulation - optimized for precision data acquisition where supply and load transients must not perturb reference integrity.

Key Specifications

Pinout & Package

SOT23-3 surface-mount package (JEDEC TO-236AB), 2.92mm × 1.30mm × 1.00mm body, gull-wing leads, RoHS-compliant plating.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADR3440BRJZ-R7 and REF3340AIDBVR, the MAX6041BEUR-T uniquely combines capacitor-free 2.2nF stability, ±500μA bidirectional drive, and <20ppm/°C TC in SOT23-3 - making it optimal for miniaturized, high-precision, battery-operated measurement systems where layout simplicity and thermal stability are co-critical.

Availability

MAX6041BEUR-T is available at Aetrix Electronics and suitable for portable data loggers, industrial sensor transmitters, medical wearables, and test & measurement equipment requiring stable component supply with guaranteed long-term availability.

Supply support for MAX6041BEUR-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 MAX6041BEUR-T belongs to the MAX60xx family of precision series-mode voltage references, engineered specifically for ultra-low-power, low-dropout, capacitor-free operation in space- and energy-constrained instrumentation and sensing applications.

FAQ

What is the maximum load current the MAX6041BEUR-T can source and sink?

The MAX6041BEUR-T can source and sink up to ±500μA while maintaining regulation and specified accuracy. This bidirectional capability allows it to drive ADC reference inputs, op-amp bias networks, and sampling capacitors without external buffers - critical for compact data acquisition circuits where the MAX6041BEUR-T serves as both precision reference and local current source/sink.

Does the MAX6041BEUR-T require an external output capacitor for stability?

No, the MAX6041BEUR-T is internally compensated and stable with output capacitance ranging from 0 to 2.2nF. Unlike many voltage references that mandate minimum external capacitors, the MAX6041BEUR-T eliminates this component entirely - reducing bill-of-materials cost, PCB area, and potential failure points in ultra-compact designs such as wearable medical devices where the MAX6041BEUR-T is deployed.

What is the minimum input voltage required for the MAX6041BEUR-T to regulate at 4.096V?

The MAX6041BEUR-T requires a minimum input voltage of V_OUT + 0.2V = 4.296V to maintain regulation. At 500μA load, its dropout voltage is 100mV, meaning it operates down to 4.196V input - enabling compatibility with aging Li-ion cells and low-headroom power rails where the MAX6041BEUR-T sustains accuracy without dropout-induced error.

How does the MAX6041BEUR-T achieve its low temperature coefficient?

The MAX6041BEUR-T uses a proprietary curvature-correction circuit combined with laser-trimmed thin-film resistors to compensate second-order bandgap voltage drift. This architecture achieves <20ppm/°C over –40°C to +85°C - significantly tighter than standard bandgap references - ensuring the MAX6041BEUR-T maintains sub-1mV error across industrial temperature excursions in outdoor sensor nodes and factory-floor instrumentation.

Is the MAX6041BEUR-T pin-compatible with other devices in the MAX60xx family?

Yes, all MAX60xx devices including MAX6041BEUR-T share identical SOT23-3 pinout (IN, OUT, GND) and package dimensions. This allows direct substitution across output voltages (1.247V to 5.000V) without PCB redesign - simplifying variant management in platforms using the MAX6041BEUR-T alongside MAX6025BEUR-T or MAX6050BEUR-T for different reference rail requirements.