Analog Devices Inc./Maxim Integrated MAX4663EAE+

Overview

MAX4663EAE+ from Maxim Integrated is a quad SPST analog switch IC with two normally open (NO) and two normally closed (NC) channels, guaranteed break-before-make switching, 2.5Ω max on-resistance, ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, and rail-to-rail signal handling - ideal for precision ADC multiplexing and reed relay replacement in test equipment.

For engineers reviewing the MAX4663EAE+ datasheet, MAX4663EAE+ pinout, MAX4663EAE+ application, or MAX4663EAE+ equivalent, key selection criteria include verified break-before-make timing (5–125 ns), channel-to-channel R_ON match (≤0.5Ω), off-leakage ≤0.5nA at +85°C, and SSOP-16 package compatibility with high-density PCB layouts.

Technical Context

The MAX4663EAE+ implements CMOS transmission-gate architecture with independent logic-level control inputs (IN1–IN4) and separate VL pin for TTL/CMOS-compatible interfacing across full supply ranges. Its internal switch matrix enforces strict break-before-make timing between complementary NO/NC pairs (e.g., IN1 controls NO1/NC1), preventing signal shorting during state transitions.

It supports dual-supply operation (±4.5V to ±20V) with V+ and V− pins referenced to GND, and features ESD protection >2kV per Method 3015.7. Signal integrity is maintained via low charge injection (20pC typ), flat on-resistance (≤0.7Ω variation over ±10V signal range), and high off-isolation (−56dB typ at 1MHz).

Key Specifications

Pinout & Package

MAX4663EAE+ is housed in a 16-pin SSOP (Shrink Small Outline Package) with 0.65mm pitch, 5.0mm × 6.2mm body size, and exposed pad not present. The package supports automated assembly and thermal performance suitable for industrial temperature operation (−40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG465BRUZ and TS5A3157DCUR, the MAX4663EAE+ uniquely delivers guaranteed break-before-make timing, dual-supply operation up to ±20V, and factory-matched NC/NO topology - making it the only option for safety-critical, wide-range analog switching where channel coordination and rail-to-rail fidelity are non-negotiable.

Availability

MAX4663EAE+ is available at Aetrix Electronics and suitable for automatic test equipment, avionics signal conditioning, and precision ADC multiplexing requiring stable component supply across extended temperature and voltage ranges.

Supply support for MAX4663EAE+ 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, mixed-signal, and RF ICs for industrial, automotive, communications, and computing markets.

The MAX466x family targets high-fidelity analog signal routing in environments demanding low distortion, precise timing control, and rugged supply flexibility - especially where mechanical relay replacement is critical.

FAQ

What is the guaranteed break-before-make time for MAX4663EAE+?

The MAX4663EAE+ guarantees a break-before-make interval of 5ns minimum to 125ns maximum under dual-supply conditions (V+ = +15V, V− = −15V). This specification is explicitly validated for the MAX4663 variant and ensures no overlap between NC and NO conduction paths during switching transitions - a key differentiator from the MAX4661/MAX4662 variants which lack this feature. The timing is measured between the 50% points of the falling edge of the NC path and the rising edge of the NO path.

Can MAX4663EAE+ operate from a single 5V supply?

Yes, MAX4663EAE+ supports single-supply operation from +4.5V to +36V. At +5V, it maintains rail-to-rail signal handling (0V to +5V), 4Ω max on-resistance, and full logic compatibility when VL is tied to +5V. However, R_ON increases slightly versus ±15V operation, and off-isolation degrades above 10MHz - verify performance in your specific signal chain using the single-supply electrical characteristics table (page 4 of the datasheet).

What is the maximum continuous current per switch in MAX4663EAE+?

The MAX4663EAE+ supports ±200mA continuous current through each COM, NO, or NC terminal. This rating applies across the full operating temperature range (−40°C to +85°C) and is limited by package thermal resistance and bond-wire capacity. For pulsed operation (1ms, 10% duty cycle), peak current rises to ±300mA - useful for driving capacitive loads or transient sensor excitation without derating.

Does MAX4663EAE+ require external protection diodes for overvoltage?

No, MAX4663EAE+ includes internal protection diodes on all analog pins (COM, NO, NC, V+, V−), but external series diodes (e.g., 1N4148) are recommended if supply sequencing cannot be controlled - specifically, V+ must be applied before V− and logic inputs. Without proper sequencing, exceeding absolute maximum ratings (e.g., V+ to GND > +44V) may cause permanent damage despite internal clamping.

How does the VL pin function in MAX4663EAE+?

The VL pin on MAX4663EAE+ provides an independent logic supply reference, allowing TTL/CMOS-compatible control inputs (IN1–IN4) to operate at voltages distinct from the analog supply rails (V+/V−). For example, a +3.3V microcontroller can drive the switches while V+ = +15V and V− = −15V - eliminating level shifters and reducing digital noise coupling into sensitive analog paths. VL must be within (GND − 0.3V) to (V+ + 0.3V).