Analog Devices Inc./Maxim Integrated MAX4524CUB

Overview

MAX4524CUB from Maxim Integrated is a low-voltage, single-supply 4-channel analog multiplexer configured as a COM-to-NO0/NO1/NO2/NO3 switch with digital address control (ADDA/ADDB) and global inhibit (INH). It delivers 200Ω on-resistance at +5V, 2nA max on-leakage at +25°C, rail-to-rail analog signal handling, and TTL/CMOS-compatible logic thresholds - enabling precise signal routing in portable instrumentation front-ends.

For engineers reviewing the MAX4524CUB datasheet, MAX4524CUB pinout, MAX4524CUB application, or MAX4524CUB equivalent, key selection criteria include guaranteed 8Ω on-resistance matching between channels, break-before-make timing (400ns max), charge injection (≤5pC), off-isolation (–75dB at 1MHz), and compatibility with +2V to +12V single-supply operation in space-constrained battery-powered systems.

Technical Context

The MAX4524CUB implements a CMOS transmission-gate architecture with dual address inputs (ADDA, ADDB) selecting one of four normally open analog paths to a common terminal (COM), while INH forces all switches open regardless of address state. Its internal logic-level translators isolate digital control signals from analog rails, eliminating ground reference requirements for analog paths.

It operates without dual supplies: V+ powers both analog switching elements and digital interface circuitry, with ESD diodes clamping analog pins to V+ and GND. Signal integrity is maintained via low flatness (12Ω max), low THD (0.2% at 20Hz–20kHz), and controlled dynamic parameters including t_ON/t_OFF (200ns/180ns at +5V) and t_BBM (400ns).

Key Specifications

Pinout & Package

MAX4524CUB uses a 10-pin µMAX package (3mm × 3mm, 0.5mm pitch) with exposed pad (EP) connected to V+. Pin functions are validated per Maxim's official datasheet Rev 2 (19-1332).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog multiplexer applications.

Compared with MAX4524ETB, the MAX4524CUB offers identical switching performance in a smaller thermal footprint but is limited to commercial temperature range; versus ADG1404YRUZ, it trades lower on-resistance for simpler single-supply operation and integrated inhibit - making it optimal for cost-sensitive, space-constrained portable designs.

Availability

MAX4524CUB is available at Aetrix Electronics and suitable for battery-operated equipment, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply across production lifecycles.

Supply support for MAX4524CUB 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) designs precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.

The MAX4524CUB belongs to Maxim's low-voltage analog switch family, engineered specifically for single-supply, rail-to-rail signal routing in portable and power-sensitive systems where size, leakage, and supply simplicity are critical.

FAQ

What is the maximum supply voltage rating for MAX4524CUB?

The MAX4524CUB has an absolute maximum supply voltage (V+) of +13V. However, its specified operational range is +2V to +12V. Operating above +12V risks violating recommended conditions and may impact reliability or parametric guarantees. The device includes internal ESD diodes clamping analog pins to V+ and GND, so exceeding +13V risks permanent damage.

Does MAX4524CUB require a separate analog ground connection?

No, the MAX4524CUB does not require a dedicated analog ground. Its analog signal paths (COM, NO0–NO3) are fully isolated from GND - they operate rail-to-rail between V+ and GND without referencing either. GND serves only as the digital logic reference and internal translator bias point. This architecture eliminates ground-loop concerns in mixed-signal systems.

Can MAX4524CUB be used with a +3.3V supply, and what performance changes occur?

Yes, MAX4524CUB operates reliably at +3.3V (within its +2V to +12V range). At +3.3V, on-resistance increases to ~500Ω (vs. 200Ω at +5V), turn-on/off times lengthen (~400ns t_ON), and logic thresholds adjust to V_IL = 0.5V / V_IH = 2.0V. All other specs - including leakage, charge injection, and bandwidth - remain valid and tested per datasheet conditions.

Is the exposed pad (EP) on MAX4524CUB electrically connected, and how should it be handled?

Yes, the exposed pad on the MAX4524CUB µMAX package is internally connected to V+. It must be soldered to a V+ copper pour on the PCB for optimal thermal dissipation and ESD robustness. Leaving it floating or connecting it to GND violates the device's internal substrate biasing (substrate tied to V+) and may cause latch-up or parametric shift.

How does the INH pin behave when driven with intermediate voltages between 0V and V+?

The INH pin has standard CMOS input structure with defined thresholds: below 0.8V (at +5V supply) it asserts inhibit (all switches open); above 2.4V it enables normal operation. Voltages between 0.8V and 2.4V are undefined - the device may enter metastability, causing unpredictable switching or increased supply current. Always drive INH with clean logic levels, not analog or resistively divided signals.