Analog Devices Inc./Maxim Integrated MX584JN

Overview

MX584JN from Maxim Integrated is a pin-programmable, precision bandgap voltage reference IC delivering factory-trimmed outputs of +10.00V, +7.50V, +5.00V, or +2.50V with ±30mV initial tolerance at +25°C, 15ppm/°C max temperature coefficient, and 750µA quiescent current - designed for A/D and D/A converter reference in industrial data acquisition systems.

For engineers reviewing the MX584JN datasheet, MX584JN pinout, MX584JN application, or MX584JN equivalent, key selection considerations include output voltage programmability without external components, STROBE-controlled shutdown (reducing current to ~100µA), 10mA source/sink capability, and compatibility with 8-pin PDIP packaging for through-hole prototyping and legacy board designs.

Technical Context

The MX584JN implements a laser-trimmed bandgap core followed by a buffered noninverting amplifier stage, enabling stable, low-drift reference outputs across its four programmable voltages. Its internal architecture supports both sourcing and sinking up to 10mA while maintaining ±30mV accuracy over 0°C to +70°C.

Pin-strapping logic (pins 1–3) selects output voltage without resistors; the STROBE input (pin 5) provides TTL-compatible active-low shutdown, and the CAP/VBG node allows external capacitor filtering (0.01µF–0.1µF) to reduce broadband noise below 10µV_RMS (0.1Hz–10Hz).

Key Specifications

Pinout & Package

MX584JN is housed in an 8-lead plastic dual in-line package (PDIP) with standard through-hole footprint and 0.300" body width. Pin 1 is VREF output; pins 2 and 3 configure output voltage; pin 4 is COMMON (GND); pin 5 is STROBE; pin 6 is VBG (bandgap tap); pin 7 is CAP (noise filter node); pin 8 is +VS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MX584JN, MAX6126AASA25 offers lower power and better tempco but forfeits voltage flexibility and shutdown control; REF5025IDR delivers superior initial accuracy and noise performance but lacks pin-programmability and integrated STROBE - making MX584JN optimal for multi-voltage, moderate-power industrial DAQ designs.

Availability

MX584JN is available at Aetrix Electronics and suitable for data acquisition systems, precision analog instrumentation, and industrial sensor signal conditioning requiring stable component supply and long-term traceability.

Supply support for MX584JN 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 computing applications.

The MX584 series was designed as a pin-programmable precision voltage reference family targeting data converters and measurement systems needing multiple stable reference voltages without external trimming components.

FAQ

What output voltages does the MX584JN support, and how are they selected?

The MX584JN supports +10.00V, +7.50V, +5.00V, and +2.50V outputs. Selection is done by strapping pins 1–3: leave pins 2 and 3 unconnected for +10V; short pins 2 and 3 for +7.5V; short pins 2 and 1 for +5V; short pins 3 and 1 for +2.5V. No external resistors are needed for these values. The MX584JN's pin-strapping scheme is implemented directly on-die and validated across its 0°C to +70°C operating range.

Does the MX584JN require external capacitors for stability or noise reduction?

The MX584JN does not require external capacitors for basic stability, but connecting a 0.01µF to 0.1µF capacitor between pins 6 (VBG) and 7 (CAP) significantly reduces broadband noise - lowering 0.1Hz–10Hz peak-to-peak noise from 50µV to under 10µV_RMS. This configuration is recommended for high-resolution ADC/DAC applications. The MX584JN's internal amplifier is compensated for unity-gain stability with or without this capacitor.

How does the STROBE function work on the MX584JN, and what is its impact on current draw?

The STROBE input (pin 5) is an active-low control: pulling it below 200mV shuts down the MX584JN's output to ~0V and reduces quiescent current from 750µA typical to ~100µA. Leakage current remains <5µA when STROBE is high. This feature is TTL- and CMOS-compatible and enables power cycling in battery-operated systems. The MX584JN resumes full output within 200µs after STROBE returns high.

Can the MX584JN be used to generate negative reference voltages?

Yes - the MX584JN can be configured as a two-terminal device to generate precise negative references (–2.5V, –5.0V, –7.5V, –10.0V) by connecting +VS and VREF to analog ground and biasing COMMON through a resistor to a negative supply (e.g., –15V). This method leverages the internal bandgap structure and is validated for –55°C to +85°C operation. The MX584JN's datasheet specifies 1mA–5mA bias current range and confirms <2mV deviation vs. positive-mode output.

What is the maximum load current the MX584JN can source or sink while maintaining specified accuracy?

The MX584JN is rated for ±10mA output current while maintaining output voltage regulation within specifications. At ±5mA load, output voltage change is limited to 30ppm/mA - i.e., ≤±0.3mV shift for +10V output. Full 10mA capability is usable across the entire 0°C to +70°C range. The MX584JN includes short-circuit protection to +VS and COMMON, allowing indefinite fault conditions without damage.