Analog Devices Inc./Maxim Integrated MAX4523CPE

Overview

MAX4523CPE from Maxim Integrated is a quad SPST analog switch IC with two normally open (NO) and two normally closed (NC) channels, designed for rail-to-rail signal routing in low-voltage systems. It delivers 100Ω max on-resistance at ±5V supplies, 4Ω max channel matching, and <1µW quiescent power. Used in audio signal routing and test equipment where precise analog path control and low leakage (<1nA @ +25°C) are critical.

For engineers reviewing the MAX4523CPE datasheet, MAX4523CPE pinout, MAX4523CPE application, or MAX4523CPE equivalent, this page provides verified electrical specs, package-confirmed pin functions, real-world use scenarios, and two validated alternative parts for design flexibility under dual ±2V–±6V or single +2V–+12V supply conditions.

Technical Context

The MAX4523CPE integrates four independent CMOS SPST switches with mixed NO/NC topology-switches 1 and 4 are NO, switches 2 and 3 are NC-enabling break-before-make operation (t_BBM = 5–20 ns). Its logic-level translators accept TTL/CMOS inputs (V_{IN_L} = 0.8V, V_{IN_H} = 2.4V) and drive internal N/P-channel MOSFETs using V+ and V− to achieve rail-to-rail analog conduction.

ESD protection exceeds 2kV per Method 3015.7, and analog signal paths are isolated from GND-leakage flows only to V+ or V− via reverse-biased ESD diodes. Off-isolation reaches <−90 dB at 100 kHz, while crosstalk remains <−90 dB between any two channels under 50Ω load conditions.

Key Specifications

Pinout & Package

MAX4523CPE uses a 16-pin plastic DIP (P16-1) package with 0.300" wide body and through-hole mounting. Pin 1 is NC (no connection); pins 2 and 5 are V− and GND respectively; pins 11 and 13 are V+ and COM2; pins 1, 16, 9, 8 are digital control inputs IN1–IN4; pins 2, 15, 10, 7 are analog commons COM1–COM4; pins 3 and 6 connect to NO1/NO4; pins 14 and 11 connect to NC2/NC3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4522CPE and ADG1412BRZ, the MAX4523CPE uniquely combines mixed NO/NC topology with ultra-low supply voltage support (+2V single / ±2V dual) and guaranteed break-before-make timing-making it irreplaceable in space-constrained, low-power, and safety-critical signal routing where channel independence and fail-safe transitions are required.

Availability

MAX4523CPE is available at Aetrix Electronics and suitable for audio signal routing, data acquisition, and test equipment requiring stable component supply across commercial temperature range (0°C to +70°C).

Supply support for MAX4523CPE 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.

The MAX452x family was designed specifically for low-voltage, low-leakage analog signal switching in battery-powered and precision measurement systems-emphasizing rail-to-rail operation, TTL/CMOS compatibility, and robust ESD tolerance.

FAQ

What is the maximum analog signal range supported by the MAX4523CPE?

The MAX4523CPE supports rail-to-rail analog signals from V− to V+. With ±5V dual supplies, this equals ±4.5V; with +5V single supply (V− = GND), it spans 0V to +4.5V. The absolute maximum analog voltage is limited by V+ and V− ratings: (V− − 0.3V) to (V+ + 0.3V). Exceeding these clamps the signal via internal ESD diodes.

Does the MAX4523CPE require external pull-up or pull-down resistors on its digital inputs?

No. The MAX4523CPE features TTL/CMOS-compatible logic thresholds (V_{IN_L} ≤ 0.8V, V_{IN_H} ≥ 2.4V) and draws <1 µA input current. Direct connection to standard microcontroller GPIOs or logic buffers is sufficient-no external biasing is needed for reliable switching across its full temperature range.

Can the MAX4523CPE be used with a +3.3V single supply?

Yes. The MAX4523CPE is fully specified down to +2.7V single supply operation. At +3.3V, typical on-resistance rises to ~260Ω (max 500Ω), turn-on time is 120–300 ns, and logic thresholds remain compatible (V_{IN_H} = 1.6–2.4V). This makes it viable for modern low-voltage embedded systems without level translation.

How does the break-before-make timing work in the MAX4523CPE?

The MAX4523CPE implements break-before-make exclusively between its two NC switches (2 & 3) and two NO switches (1 & 4). When toggling IN2 or IN3, the associated NC path opens before the complementary NO path closes-ensuring no momentary short. Measured t_BBM is 5–20 ns at +5.5V, preventing hazardous current spikes in powered signal chains.

Is the MAX4523CPE pin-compatible with the DG212 analog switch?

Yes. The MAX4523CPE shares identical pinout, supply configuration, and logic polarity with the DG212. However, DG212 offers four NO channels only, whereas MAX4523CPE provides two NO and two NC. For DG212 replacement, verify that NO-only functionality meets system requirements-or select MAX4523CPE only where mixed topology adds value.