Analog Devices Inc./Maxim Integrated MAX4658EUA

Overview

MAX4658EUA from Maxim Integrated is a normally open (NO), single-pole/single-throw (SPST), high-current CMOS analog switch optimized for rail-to-rail signal routing in industrial and telecom systems. It delivers 10Ω max on-resistance at ±15V supplies, supports ±150mA continuous/±300mA peak current, and operates from +9V to +40V single supply or ±4.5V to ±20V dual supply - enabling robust replacement of electromechanical relays in audio routing and redundant power-path switching.

For engineers reviewing the MAX4658EUA datasheet, MAX4658EUA pinout, MAX4658EUA application, or MAX4658EUA equivalent, this device is selected for high-current analog switching where low R_ON flatness (1Ω max), sub-1nA off-leakage at +25°C, fast 75–125ns turn-off time, and TTL/CMOS-compatible control are critical in xDSL modems, PBX systems, and PC multimedia boards.

Technical Context

The MAX4658EUA implements an N-channel/P-channel MOSFET parallel switch architecture with proprietary body-drive sensing to eliminate voltage-drop limitations across the channel. Unlike conventional analog switches constrained by ~600mV V_DS limits, it sustains full rated current across rail-to-rail analog signals without parasitic diode conduction or supply current surge.

It supports asymmetrical dual-supply operation (e.g., V+ = +24V, V− = −5V) within a 40V total V+–V− range, and features logic-level thresholds (VIH = 2.4V, VIL = 0.8V) independent of supply voltage - ensuring reliable switching under varying input conditions while maintaining 210MHz −3dB bandwidth and −77dB off-isolation at 1MHz.

Key Specifications

Pinout & Package

MAX4658EUA is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height) with exposed paddle (EP) for thermal enhancement. The package is RoHS-compliant and rated for −40°C to +85°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4656EUA and ADG1419BRMZ, the MAX4658EUA uniquely balances compact µMAX packaging, VL-free operation, and 150mA continuous current - making it optimal for thermally sensitive, space-constrained relay-replacement in telecom and audio systems where pin compatibility and low leakage are prioritized over maximum current.

Availability

MAX4658EUA is available at Aetrix Electronics and suitable for audio signal routing, xDSL modem line switching, PBX redundancy, and test equipment multiplexing requiring stable component supply, long-term lifecycle support, and guaranteed RoHS compliance.

Supply support for MAX4658EUA 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 high-performance analog and mixed-signal ICs for industrial, communications, and computing applications, with emphasis on reliability, integration, and power efficiency.

The MAX4655–MAX4658 family was engineered specifically for high-current, low-R_ON analog switching in relay-replacement and telecom infrastructure - delivering million-cycle lifetime, rail-to-rail operation, and robust ±40V supply flexibility.

FAQ

What is the maximum continuous current rating for MAX4658EUA?

The MAX4658EUA supports ±150mA continuous current at TA = +70°C with proper thermal management. This rating is validated per Absolute Maximum Ratings and confirmed in Electrical Characteristics tables for dual-supply operation. Exceeding this current without adequate heatsinking risks exceeding junction temperature limits and degrading long-term reliability. The MAX4658EUA datasheet specifies 362mW continuous power dissipation at +70°C, derating linearly above that temperature.

Does MAX4658EUA require a separate logic supply (VL)?

No, the MAX4658EUA does not require a VL supply. Its digital control input (IN) is fully TTL/CMOS compatible across its entire operating supply range (+9V to +40V single or ±4.5V to ±20V dual). Logic thresholds (VIH = 2.4V, VIL = 0.8V) remain stable regardless of V+ or V− voltage - eliminating the need for level shifters or auxiliary rails in system design.

Is MAX4658EUA pin-compatible with DG417 or DG418?

Yes, the MAX4658EUA is explicitly stated as pin-compatible with DG417 and DG418 in the Features section of its datasheet. Pin assignments (COM, NO, IN, V+, V−, GND) match identically in the 8-pin µMAX package, enabling direct substitution without PCB modification - provided thermal and current requirements of the legacy design fall within MAX4658EUA's ±150mA continuous and 362mW dissipation limits.

What is the on-resistance flatness specification for MAX4658EUA?

The MAX4658EUA guarantees ≤1Ω maximum R_ON flatness over its specified analog signal range, defined as the difference between maximum and minimum on-resistance measured at V_COM = −5V, 0V, and +5V (dual-supply) or 2V, 6V, 10V (single-supply). This tight flatness ensures consistent gain and minimal harmonic distortion (<0.007%) across the full signal swing in audio and instrumentation applications.

Can MAX4658EUA operate from asymmetric dual supplies?

Yes, the MAX4658EUA supports asymmetric dual-supply operation - for example, V+ = +24V and V− = −5V - as long as the total V+ to V− differential remains ≤40V and each supply stays within its absolute maximum ratings (V+ to GND ≤ +44V, V− to GND ≥ −44V). This capability enables tailored dynamic range optimization in mixed-signal systems without requiring symmetrical rails.