Analog Devices Inc./Maxim Integrated MAX4622CSE

Overview

The MAX4622CSE from Maxim Integrated is a precision dual SPDT analog switch with two normally closed (NC) and two normally open (NO) poles, 5Ω max on-resistance, guaranteed 0.5Ω channel-to-channel R_ON match, and break-before-make operation - designed for low-distortion signal routing in test equipment and communication systems.

For engineers reviewing the MAX4622CSE datasheet, MAX4622CSE pinout, MAX4622CSE application, or MAX4622CSE equivalent, key selection criteria include rail-to-rail analog signal handling (±18V bipolar / +36V single supply), <200ns turn-off time, <250ns turn-on time, <5nA off-leakage at +85°C, and guaranteed break-before-make timing for glitch-free switching.

Technical Context

The MAX4622CSE implements CMOS-based transmission-gate architecture with integrated level-shifting logic to support TTL/CMOS-compatible inputs across wide supply ranges. Its dual SPDT configuration operates independently per channel, with each switch exhibiting flat on-resistance (<0.5Ω variation) over full analog signal swing from V− to V+.

Break-before-make timing is guaranteed by internal control logic that enforces minimum 90ns delay between NC opening and NO closing (t_D = 90–200ns typ), preventing momentary shorting during state transitions - critical for protecting downstream circuitry in audio and data-acquisition paths.

Key Specifications

Pinout & Package

MAX4622CSE is housed in a 16-pin narrow SOIC (SO/DIP) package with 1.27mm pitch, 10.2mm × 5.3mm body, and standard JEDEC MS-012AC footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG408BRUZ and TS5A23157DGSR, the MAX4622CSE uniquely delivers guaranteed break-before-make timing, bipolar supply flexibility (±18V), and sub-5Ω R_ON in a dual SPDT configuration - making it the only option qualified for high-reliability reed-relay replacement and precision ATE signal routing.

Availability

MAX4622CSE is available at Aetrix Electronics and suitable for test equipment, avionics signal conditioning, and military radio subsystems requiring stable component supply across extended temperature and long production lifecycles.

Supply support for MAX4622CSE 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and automotive markets.

The MAX462x family was engineered for precision analog signal routing in mission-critical systems - emphasizing low distortion, guaranteed timing behavior, and robust operation across wide supply and temperature ranges.

FAQ

What is the maximum allowable supply voltage difference between V+ and V− for the MAX4622CSE?

The MAX4622CSE specifies an absolute maximum V+ to V− differential of +44V. Exceeding this rating risks permanent damage due to junction breakdown. In normal operation, the device supports bipolar supplies up to ±18V (36V total), and single-supply operation up to +36V with V− tied to GND. Always observe proper power sequencing: apply V+ first, then VL, then V− and logic inputs.

Does the MAX4622CSE require external pull-up or pull-down resistors on its logic inputs?

No, the MAX4622CSE does not require external pull-up or pull-down resistors on IN1 or IN2. Its TTL/CMOS-compatible inputs have defined thresholds (VINL ≤ 0.8V, VINH ≥ 2.4V) and low input current (±0.5µA max), allowing direct connection to FPGA GPIO, microcontroller outputs, or logic gates. However, floating inputs must be avoided - tie unused logic inputs to VL or GND to prevent metastability.

Can the MAX4622CSE operate with V− = GND and V+ = +12V while still handling rail-to-rail analog signals?

Yes, the MAX4622CSE supports true rail-to-rail analog signal handling from V− to V+ in single-supply mode. With V− = GND and V+ = +12V, the device switches signals from 0V to +12V without clipping or distortion. This is confirmed in the "Electrical Characteristics-Single Supply" table, where R_ON flatness and leakage are specified across the full 0V–12V range at TA = +25°C and TMIN to TMAX.

Is the MAX4622CSE pin-compatible with the DG403, and what design changes are needed for replacement?

Yes, the MAX4622CSE is pin-compatible with the DG403 in the 16-pin SOIC package. No PCB layout changes are required. However, the MAX4622CSE adds a dedicated VL pin (pin 13) for logic supply separation - this must be connected to +5V, whereas DG403 ties logic to V+. Also, MAX4622CSE supports wider supply ranges and lower leakage, so existing decoupling and thermal design remain valid.

What is the guaranteed break-before-make time for the MAX4622CSE, and how is it measured?

The MAX4622CSE guarantees a minimum break-before-make delay (t_D) of 90ns, with typical values of 100–200ns. It is measured per Figure 3 in the datasheet: with VCOM = +10V, RL = 100Ω, CL = 35pF, and logic input transition from 0V to +3V, t_D is the time between 50% point of NC opening and 50% point of NO closing. This timing is process- and temperature-compensated across 0°C to +70°C.