Analog Devices Inc./Maxim Integrated MAX876AESA+T

Overview

The MAX876AESA+T from Maxim Integrated is a precision +10.0V voltage reference IC with ±0.03% initial accuracy, 7ppm/°C max temperature coefficient, and 29µVRMS (10Hz–1kHz) output noise-designed for high-resolution data acquisition in portable test equipment and 12-bit ADC/DAC systems requiring stable, low-drift excitation.

For engineers reviewing the MAX876AESA+T datasheet, MAX876AESA+T pinout, MAX876AESA+T application, or MAX876AESA+T equivalent, key selection criteria include its 10V output stability over –40°C to +85°C, TRIM-adjustable ±600mV range, TEMP pin for die-temperature monitoring, and SO-8 package compatibility with space-constrained PCB layouts.

Technical Context

The MAX876AESA+T employs laser-trimmed thin-film resistors and proprietary curvature-correction circuitry to achieve 7ppm/°C max drift and ±0.03% initial accuracy at +25°C. Its bandgap core delivers 10.000V nominal output with <15ppm/mA load regulation and 4ppm/V line regulation across 12V–18V input.

It integrates a dedicated TEMP pin (630mV @ +25°C, 2.1mV/°C) for external temperature compensation or warning circuits, and supports output trimming via external potentiometer without affecting quiescent current beyond specified 320–550µA limits.

Key Specifications

Pinout & Package

MAX876AESA+T is housed in an 8-pin SOIC (SO-8, package code S8-4), 3.94mm × 4.90mm body, 1.27mm pitch, lead-free RoHS-compliant package.

Key Features

Applications

Equivalent & Alternatives

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

Compared with REF5010AIDR and ADR445BRZ, the MAX876AESA+T offers unique integration of TEMP output and ±600mV trim in a compact SO-8 package with sub-550µA supply current-making it optimal for portable, thermally-aware, and space-limited 10V reference applications where moderate drift is acceptable.

Availability

MAX876AESA+T is available at Aetrix Electronics and suitable for portable digital multimeters, 12-bit data-acquisition systems, and low-power test equipment requiring stable component supply, consistent parametric performance, and long-term availability assurance.

Supply support for MAX876AESA+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, communications, and consumer applications.

The MAX876AESA+T belongs to Maxim's precision voltage reference product line, engineered specifically for high-accuracy, low-power, and thermally aware instrumentation where stable 10V excitation and on-die temperature feedback are essential.

FAQ

What is the maximum input voltage for the MAX876AESA+T?

The MAX876AESA+T supports a wide input voltage range of 12V to 18V for 10V output operation, as specified in its electrical characteristics table. Absolute maximum rating for IN-to-GND is +20V, but sustained operation above 18V may affect long-term reliability and is not characterized. For robust design, maintain VIN within 12V–18V per the datasheet conditions used to guarantee all parameters including line regulation and PSRR.

Does the MAX876AESA+T require an output capacitor for stability?

No, the MAX876AESA+T is internally compensated and stable without any output capacitor. It remains stable with capacitive loads up to 100µF, making it suitable for driving ADC reference inputs directly or buffering through RC filters. An output capacitor is optional and only recommended to improve transient response during large load steps-not for stability assurance.

How does the TEMP pin function on the MAX876AESA+T?

The TEMP pin on the MAX876AESA+T outputs a voltage proportional to die temperature: 630mV at +25°C with a sensitivity of 2.1mV/°C. This analog output enables real-time die-temperature monitoring for thermal compensation, over-temperature warning, or ambient temperature estimation (when self-heating is negligible). The pin is designed for high-impedance readout and must not be loaded with <1MΩ to avoid accuracy degradation.

Can the MAX876AESA+T be used in battery-powered applications?

Yes, the MAX876AESA+T is well-suited for battery-powered applications due to its 320–550µA quiescent current and ability to operate from a 12V–18V supply-compatible with two or three Li-ion cells in series (8.4V–12.6V typical) when paired with a low-dropout boost converter. Its low noise and drift ensure measurement integrity over extended runtime without frequent recalibration.

What is the purpose of the TRIM pin on the MAX876AESA+T?

The TRIM pin on the MAX876AESA+T allows adjustment of the 10.000V output over a ±600mV range (±6%) using a simple resistive divider between OUT and GND. Connecting a 100kΩ potentiometer's wiper to TRIM enables precise factory or system-level calibration to compensate for PCB trace resistance, ADC offset, or gain errors-without altering the device's core accuracy or temperature performance.