Analog Devices Inc./Maxim Integrated MAX4667ESE

Overview

MAX4667ESE from Maxim Integrated is a dual, normally closed (NC), SPST CMOS analog switch with 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 up to ±20V. It delivers matched on-resistance (≤0.4Ω) and flat on-resistance (≤0.5Ω) over its full analog range, enabling low-distortion signal routing in automatic test equipment and PBX systems.

For engineers reviewing the MAX4667ESE datasheet, MAX4667ESE pinout, MAX4667ESE application, or MAX4667ESE equivalent, key selection criteria include guaranteed break-before-make timing (not applicable-MAX4667ESE is dual-NC), off-leakage current ≤0.5nA at +85°C, TTL/CMOS-compatible logic thresholds (+0.8V/+2.4V), and SOIC-16 narrow-body package compatibility with industrial temperature range (-40°C to +85°C).

Technical Context

The MAX4667ESE implements two independent NC-configured transmission gates using high-voltage CMOS process technology, supporting symmetric dual supplies (±4.5V to ±20V) or asymmetric single supplies (4.5V to 36V). Its internal charge-pump–assisted gate drive ensures consistent R_ON across the full signal range from V_- to V₊, while integrated ESD protection (>2kV per Method 3015.7) safeguards against handling damage.

Logic control inputs accept TTL/CMOS levels regardless of supply configuration, with input thresholds fixed at +0.8V (low) and +2.4V (high). The device guarantees R_ON matching ≤0.4Ω between channels and R_ON flatness ≤0.5Ω - critical for precision multiplexing and instrumentation where gain or offset error must remain stable across signal amplitude.

Key Specifications

Pinout & Package

MAX4667ESE is housed in a 16-pin narrow SOIC (SO/DIP) package with 1.27mm pitch, rated for -40°C to +85°C operation. Pin 1 is located at the top-left corner adjacent to the notch or dot marking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1419BRUZ and TS5A3157DCKR, the MAX4667ESE uniquely supports both wide dual-supply (±4.5V to ±20V) and high-voltage single-supply (up to +36V) operation while guaranteeing R_ON flatness and matching - making it the only option qualified for precision, high-voltage, industrial-grade analog switching without layout or BOM revision.

Availability

MAX4667ESE is available at Aetrix Electronics and suitable for reed relay replacement, PBX/PABX systems, and test equipment requiring stable component supply across extended temperature and voltage ranges.

Supply support for MAX4667ESE 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 high-reliability semiconductor solutions for industrial, communications, and automotive markets.

The MAX4667 series belongs to Maxim's high-voltage analog switch product line, engineered specifically for replacing mechanical relays in automated test equipment and telecom infrastructure where rail-to-rail signal integrity, low leakage, and guaranteed parametric matching are mandatory.

FAQ

What is the maximum allowable supply voltage for MAX4667ESE?

The MAX4667ESE supports absolute maximum ratings of V+ to GND = -0.3V to +44V and V− to GND = +0.3V to -44V, with operational supply ranges of +4.5V to +36V (single) or ±4.5V to ±20V (dual). Exceeding these limits risks permanent damage, and proper power sequencing (V+ first, then V−, then logic inputs) is required per the datasheet.

Does MAX4667ESE support break-before-make switching?

No, the MAX4667ESE does not support break-before-make operation. It is a dual-normally-closed (NC) switch: both channels are closed when logic inputs are low and open simultaneously when inputs go high. Break-before-make is guaranteed only on the MAX4669 variant, which integrates one NC and one NO switch with controlled timing.

What is the purpose of the VL pin on MAX4667ESE?

The VL pin on MAX4667ESE sets the logic supply reference and accepts +2.7V to +5.5V. It decouples logic-level translation from analog supplies, enabling TTL/CMOS-compatible input thresholds (+0.8V low / +2.4V high) regardless of whether V+ is +12V or ±15V. A 0.1µF ceramic capacitor must be placed between VL and GND.

Can MAX4667ESE handle bipolar analog signals?

Yes, the MAX4667ESE fully supports bipolar analog signals when operated from dual supplies (e.g., ±15V). Its rail-to-rail architecture allows signals from V− to V+ (i.e., -15V to +15V), and all analog pins (COM, NC, NO) are rated for ±20V. For single-supply use, V− must be tied to GND and signals referenced accordingly (0V to V+).

How is the no-connect (N.C.) pin configuration used in MAX4667ESE layout?

MAX4667ESE has six N.C. pins (1, 3, 6, 8, 10, 15) that are not internally bonded. Per Maxim's recommendation, these pins should be connected to GND via low-impedance traces to improve off-isolation and reduce crosstalk - especially critical in high-frequency or high-density PCB layouts where parasitic coupling may degrade signal integrity.