Analog Devices Inc./Maxim Integrated MAX6192BESA+

Overview

MAX6192BESA+ from Maxim Integrated is a precision micropower low-dropout series voltage reference delivering 2.500V output with ±2mV initial accuracy, 5ppm/°C max temperature coefficient, and 35µA max quiescent current. It operates from (VOUT + 0.2V) to 12.6V input, supports ±500µA load, and is stable with up to 2.2nF capacitive load-ideal for high-accuracy ADC/DAC biasing in battery-powered instrumentation.

For engineers reviewing the MAX6192BESA+ datasheet, MAX6192BESA+ pinout, MAX6192BESA+ application, or MAX6192BESA+ equivalent, this page provides verified technical context, real-world design meaning of key specs, SO-8 package mapping, application-specific implementation guidance, and two validated alternative parts with documented functional and parametric differences.

Technical Context

The MAX6192BESA+ is a series-mode bandgap voltage reference using proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve <5ppm/°C temperature coefficient and ±2mV initial accuracy over –40°C to +85°C. Its internal compensation ensures stability with capacitive loads up to 2.2nF and fast 85µs turn-on settling to 0.1%.

It sources and sinks up to 500µA while maintaining ≤100mV dropout at full load and exhibits only 0.14µV/µA load regulation and 15µV/V line regulation-enabling high-precision operation in low-voltage, low-power systems where supply headroom and load transients are critical constraints.

Key Specifications

Pinout & Package

MAX6192BESA+ is housed in an 8-pin SO (Small Outline) package, RoHS-compliant and rated for –40°C to +85°C operation. Pin 1 is OUT, Pin 2 is IN, Pin 4 is GND; Pins 1, 3, 5, 7, and 8 are No Connect (N.C.).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6192AESA+, MAX6192BESA+ trades 1mV initial accuracy for lower unit cost while retaining identical temperature stability and power efficiency-making it optimal for volume production where post-calibration is acceptable. REF3025AIDBZR offers smaller footprint but sacrifices 10× worse temperature drift and higher quiescent current, limiting use to less demanding applications.

Availability

MAX6192BESA+ is available at Aetrix Electronics and suitable for hand-held instruments, analog-to-digital converters, and industrial process control systems requiring stable component supply, long-term availability, and guaranteed RoHS compliance.

Supply support for MAX6192BESA+ 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, automotive, and communications markets.

The MAX6190–MAX6195/MAX6198 family was designed specifically for precision, micropower, low-dropout voltage referencing in battery-operated and space-constrained instrumentation-emphasizing ultra-low I_Q, tight initial accuracy, and exceptional thermal stability.

FAQ

What is the maximum load current supported by the MAX6192BESA+?

The MAX6192BESA+ can source and sink up to ±500µA while maintaining specified accuracy and dropout voltage. This bidirectional capability supports both active pull-up and pull-down configurations in precision analog circuits, such as driving the reference input of dual-supply op-amps or interfacing with programmable gain amplifiers that require sinking reference current.

Does the MAX6192BESA+ require an output capacitor for stability?

No, the MAX6192BESA+ is internally compensated and stable with capacitive loads from 0 to 2.2nF. An output capacitor is optional and only recommended in applications subject to rapid load or supply transients-where it reduces overshoot and improves transient response. Omitting it saves board space and eliminates capacitor-related aging or leakage effects.

What is the minimum input voltage required for proper operation of the MAX6192BESA+?

The MAX6192BESA+ requires a minimum input voltage of (VOUT + 0.2V), i.e., 2.7V for its 2.500V output. Below this, regulation degrades and dropout increases nonlinearly. At 500µA load, dropout is guaranteed ≤100mV, meaning VIN ≥ 2.6V maintains ≤0.2% output error-but 2.7V is the absolute minimum per datasheet specification.

How does the MAX6192BESA+ compare to the MAX6192CESA+ in terms of accuracy?

The MAX6192BESA+ guarantees ±2mV initial accuracy and ≤5ppm/°C temperature coefficient, while the MAX6192CESA+ specifies ±6mV initial accuracy and ≤25ppm/°C tempco. Both share identical package, pinout, and quiescent current. Choose MAX6192BESA+ for applications needing tighter initial tolerance and thermal stability without calibration.

Is the MAX6192BESA+ suitable for use with high-resolution ADCs like 16-bit or 18-bit converters?

Yes, the MAX6192BESA+ is well-suited for 16-bit ADCs due to its 125µV_RMS (0.1–10Hz) noise, ±2mV initial accuracy, and 0.14µV/µA load regulation. For 18-bit systems, verify system-level noise budget-its 125µV_RMS contributes ~0.8 LSB at 2.5V full-scale, so additional filtering or averaging may be needed depending on sampling rate and bandwidth requirements.