Analog Devices Inc./Maxim Integrated MAX4608ESE+

Overview

MAX4608ESE+ from Maxim Integrated is a dual, normally open (NO), single-pole single-throw (SPST) CMOS analog switch with 2.5Ω maximum on-resistance, rail-to-rail signal handling (±15V dual or +12V single supply), and guaranteed 0.5Ω max on-resistance match between channels. It operates across -40°C to +85°C and is used in precision audio routing and automated test equipment where low distortion and high channel matching are critical.

For engineers reviewing the MAX4608ESE+ datasheet, MAX4608ESE+ pinout, MAX4608ESE+ application, or MAX4608ESE+ equivalent, key selection criteria include verified on-resistance flatness (≤0.5Ω over ±10V), off-isolation (-60dB at 1MHz), charge injection (45pC), TTL/CMOS-compatible logic thresholds, and SO-16 narrow package compatibility with industrial temperature range support.

Technical Context

The MAX4608ESE+ implements dual independent SPST switches with complementary CMOS transmission-gate architecture, enabling bidirectional rail-to-rail analog signal switching without polarity constraints. Its matched R_ON and flat R_ON ensure minimal gain error and crosstalk in multiplexed instrumentation paths.

Logic control uses fixed TTL/CMOS thresholds (V_{IN_H} = 2.4V min, V_{IN_L} = 0.8V max) referenced to VL, supporting interoperability with +5V microcontrollers even under ±15V analog supplies. ESD protection exceeds 2kV per Method 3015.7, and leakage remains ≤2.5nA at +85°C.

Key Specifications

Pinout & Package

MAX4608ESE+ is housed in a 16-pin narrow SOIC (SO-16) package with 1.27mm pitch, RoHS-compliant and lead-free (indicated by '+' suffix). The package supports surface-mount reflow and provides thermal resistance θ_JA = 115°C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1419BRUZ and TS5A23157DGSR, the MAX4608ESE+ uniquely supports independent analog and logic supplies, rail-to-rail operation up to ±20V, and guaranteed R_ON matching-making it the only option qualified for precision dual-rail ATE and avionics signal routing where supply flexibility and channel consistency are non-negotiable.

Availability

MAX4608ESE+ is available at Aetrix Electronics and suitable for automated test equipment, avionics signal conditioning, and high-fidelity audio routing requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for MAX4608ESE+ 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 and integration.

The MAX4607/MAX4608/MAX4609 family was engineered specifically for replacing electromechanical relays and reed switches in precision analog signal routing, emphasizing low distortion, matched performance, and wide supply flexibility.

FAQ

What is the operating temperature range for MAX4608ESE+?

The MAX4608ESE+ is specified for operation from -40°C to +85°C. This industrial temperature grade is confirmed in the Ordering Information table and validated across all electrical parameters including on-resistance, leakage, and switching times. The 'E' suffix explicitly denotes this extended range, distinguishing it from the commercial-grade 'C' version (0°C to +70°C). All performance guarantees in the datasheet apply across this full range.

Does MAX4608ESE+ support dual-supply operation?

Yes, MAX4608ESE+ supports dual-supply operation from ±4.5V to ±20V. The absolute maximum ratings confirm V+ to V− can be up to +44V, and electrical characteristics tables explicitly list dual-supply test conditions (e.g., V+ = +15V, V− = −15V). This enables true bipolar signal handling, such as ±10V audio or sensor signals, with no level-shifting required.

What is the function of the VL pin on MAX4608ESE+?

The VL pin on MAX4608ESE+ is the logic supply input, decoupling the digital control interface from the analog supply rails. It accepts +2.7V to +5.5V and sets the threshold for IN1/IN2 logic inputs. This allows interfacing with +3.3V or +5V microcontrollers while analog supplies operate at ±15V-ensuring noise isolation and preventing logic misstates caused by analog rail transients.

Can MAX4608ESE+ replace mechanical relays in high-cycle applications?

Yes, MAX4608ESE+ is explicitly positioned as a reed relay replacement in its Applications section. With no moving parts, it delivers >1 billion switching cycles versus typical mechanical relay lifetimes of 10⁵–10⁷ cycles. Its 110ns turn-on time, low charge injection (45pC), and guaranteed R_ON match make it suitable for ATE and telecom switching where speed, reliability, and repeatability are critical-unlike relays, it exhibits no contact bounce or wear-out.

Is MAX4608ESE+ pin-compatible with other devices in the MAX4607/08/09 family?

Yes, MAX4608ESE+ shares identical pinout and package (16-pin narrow SO) with MAX4607ESE+ and MAX4609ESE+. The only functional difference is switch configuration: MAX4608ESE+ has two normally open (NO) switches, MAX4607ESE+ has two normally closed (NC), and MAX4609ESE+ has one NO and one NC. This allows drop-in substitution in layouts where logic polarity and default state are accounted for in firmware or external pull-up/down networks.