Analog Devices Inc./Maxim Integrated MAX4669CPE

Overview

MAX4669CPE from Maxim Integrated is a dual SPST CMOS analog switch with one normally closed (NC) and one normally open (NO) channel, guaranteeing break-before-make operation. It features 2.5Ω max on-resistance, ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, and rail-to-rail analog signal handling up to ±20V. It is used in PBX systems, test equipment, and audio-signal routing where low distortion and mechanical relay replacement are required.

For engineers reviewing the MAX4669CPE datasheet, MAX4669CPE pinout, MAX4669CPE application, or MAX4669CPE equivalent, key selection criteria include guaranteed break-before-make timing (5–30 ns), R_ON matching ≤0.4Ω, off-isolation of –60 dB, and TTL/CMOS-compatible logic thresholds at ±15V or +12V supplies.

Technical Context

The MAX4669CPE implements two independent SPST switches in a single 16-pin plastic DIP package: Switch 1 is NC (pin 9 → COM1, pin 16 → NC1), Switch 2 is NO (pin 1 → NO1, pin 11 → COM2). Its internal CMOS architecture ensures matched on-resistance (ΔR_ON ≤ 0.4Ω) and flat R_ON (≤0.5Ω) over the full ±10V signal range.

Break-before-make is hardware-guaranteed via internal timing control, with delay ≤30 ns between channel transitions. Logic inputs (IN1/pin 2, IN2/pin 7) accept TTL/CMOS levels (V_{IN_H} = 2.4V, V_{IN_L} = 0.8V) across supply configurations, enabling direct interfacing with microcontrollers and FPGAs without level-shifting.

Key Specifications

Pinout & Package

MAX4669CPE is housed in a 16-pin plastic DIP (dual in-line package) with 0.3-inch body width and standard through-hole mounting. Pin spacing is 0.1 inch, compatible with industry-standard PCB footprints and socketing.

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 MAX4669CPE uniquely combines dual-supply operation, hardware-guaranteed break-before-make, and –60 dB off-isolation-making it the only option qualified for high-reliability, mixed-rail, safety-critical analog switching.

Availability

MAX4669CPE is available at Aetrix Electronics and suitable for PBX systems, automated test equipment, and avionics signal conditioning requiring stable component supply, long-term obsolescence management, and traceable sourcing.

Supply support for MAX4669CPE 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, automotive, communications, and computing applications.

The MAX4667/MAX4668/MAX4669 family was engineered specifically for high-fidelity, low-distortion analog signal routing in environments demanding mechanical relay replacement-emphasizing R_ON matching, rail-to-rail swing, and robust supply flexibility.

FAQ

What is the guaranteed break-before-make timing specification for MAX4669CPE?

The MAX4669CPE guarantees a break-before-make time delay of 5 ns minimum to 30 ns maximum between its NC and NO channels during logic-controlled switching. This parameter is tested and specified under dual-supply conditions (V+ = +15V, V− = −15V) and ensures no overlap conduction that could cause signal shorting. The timing is implemented in silicon and does not require external timing components.

Can MAX4669CPE operate from a single +12V supply?

Yes, MAX4669CPE supports single-supply operation from +4.5V to +36V. When using +12V, connect V− to GND, set VL = +5V, and ensure logic inputs meet TTL/CMOS thresholds (0.8V low, 2.4V high). R_ON increases slightly to 4Ω max under these conditions, and off-isolation remains –60 dB at 1 MHz-fully documented in the single-supply electrical characteristics table.

What is the maximum continuous current rating per switch channel in MAX4669CPE?

The MAX4669CPE supports ±100 mA continuous current through each COM/NO/NC terminal. This rating applies across the full operating temperature range (0°C to +70°C for the CPE grade) and assumes proper PCB copper area for thermal dissipation. Peak pulsed current is ±300 mA (1 ms, 10% duty cycle), validated per Absolute Maximum Ratings.

Does MAX4669CPE require external protection diodes for overvoltage?

No-MAX4669CPE includes internal protection diodes on all analog pins (COM, NO, NC), as noted in the Pin Description and Applications Information sections. External diodes (e.g., Figure 1) are optional and only recommended if absolute maximum ratings risk being exceeded during power sequencing; they reduce usable signal range by ~0.7V but preserve R_ON and leakage specs.

How is the pinout of MAX4669CPE different from MAX4667CPE and MAX4668CPE?

MAX4669CPE shares identical pinout and package with MAX4667CPE and MAX4668CPE-same 16-pin DIP footprint and signal assignments. The functional difference lies solely in switch configuration: MAX4669CPE has one NC (pins 9/16 → COM1) and one NO (pin 1 → COM2), while MAX4667CPE is dual-NC and MAX4668CPE is dual-NO. All three are drop-in replacements at the board level.