Analog Devices Inc./Maxim Integrated MAX4515CPA

Overview

MAX4515CPA from Maxim Integrated is a normally closed (NC), single-pole/single-throw (SPST), CMOS analog switch optimized for low-voltage, rail-to-rail signal routing. It operates from a single +2V to +12V supply, delivers 10Ω on-resistance at +12V, supports ≤1nA off-leakage at +25°C, and switches in 100ns turn-off time-ideal for precision audio routing and battery-powered data-acquisition front-ends.

For engineers reviewing the MAX4515CPA datasheet, MAX4515CPA pinout, MAX4515CPA application, or MAX4515CPA equivalent, this page provides verified electrical parameters, package-specific terminal mapping, real-world use-value context for NC-switch behavior, and validated alternative options for low-leakage, low-R_ON analog switching in portable and industrial signal-path designs.

Technical Context

The MAX4515CPA implements a complementary CMOS transmission-gate architecture with internal logic-level translation, enabling TTL/CMOS-compatible control (0.8V–2.4V thresholds at +5V) while supporting analog signals from GND to V+. Its break-before-make timing (t_ON > t_OFF) prevents momentary shorting during state transitions, and ESD diodes clamp analog pins to V+ and GND-defining absolute maximum signal range and leakage path behavior.

Leakage current originates entirely from reverse-biased ESD diodes on NO/NC/COM pins, not inter-terminal conduction; thus, I_COM(OFF), I_NO(OFF), and I_NC(OFF) are independent and temperature-dependent but do not couple across terminals. Charge injection (10pC typical) arises from gate-oxide capacitance imbalance during switching and directly impacts settling error in high-impedance sampling nodes.

Key Specifications

Pinout & Package

MAX4515CPA uses an 8-pin plastic DIP package with lead pitch 0.300", body width 0.375", and operating temperature range 0°C to +70°C. Pin 1 is COM (common), Pin 2 is NC (not internally connected), Pin 3 is NC, Pin 4 is V+, Pin 5 is GND, Pin 6 is IN (digital control input), Pin 7 is NC, and Pin 8 is NC. The NC pins (2, 3, 7, 8) must remain unconnected per datasheet specification.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4515CPA, MAX4515CSA offers identical performance in a compact SO-8 footprint ideal for volume SMT, while ADG1419BRZ trades slight R_ON and leakage penalties for broader temperature capability and superior high-frequency isolation-making each viable based on mechanical, thermal, or system-level compliance requirements rather than functional equivalence.

Availability

MAX4515CPA is available at Aetrix Electronics and suitable for battery-operated equipment, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply, long-lifecycle support, and traceable sourcing from original manufacturer channels.

Supply support for MAX4515CPA 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, medical, communications, and consumer applications.

The MAX4514/MAX4515 family was engineered specifically for low-leakage, low-R_ON, single-supply analog switching in portable and space-constrained systems-prioritizing rail-to-rail signal integrity, micropower operation, and robust logic interfacing over high-speed or high-voltage capability.

FAQ

What is the maximum supply voltage rating for MAX4515CPA?

The MAX4515CPA has an absolute maximum V+ rating of +13V. Continuous operation is specified from +2V to +12V. Exceeding +13V risks permanent damage due to internal ESD diode breakdown. For reliable long-term use, maintain V+ within the recommended +2V to +12V range, with derating applied above +70°C ambient per the 9.09mW/°C dissipation limit in the 8-pin DIP package.

Does MAX4515CPA support bidirectional analog signal flow?

Yes, MAX4515CPA supports fully bidirectional analog signal routing. The COM, NO, and NC pins are electrically symmetric-any can serve as input or output. This is confirmed in the Pin Description section, which states "NO, NC, and COM pins are identical and interchangeable" and "signals pass equally well in both directions." No directionality constraints apply to analog path design.

What is the guaranteed on-resistance for MAX4515CPA at +5V supply?

The guaranteed on-resistance for MAX4515CPA at +5V supply is 20Ω maximum (typical 10Ω), measured with V_COM = 3.5V and I_COM = 1mA. This value is production-tested and specified across the full 0°C to +70°C operating temperature range. At +12V, R_ON drops to 10Ω max-demonstrating strong supply-voltage dependence inherent to CMOS switch architecture.

Can MAX4515CPA be used with a +3V supply?

Yes, MAX4515CPA is characterized down to +2V and supports +3V operation. Electrical Characteristics for +3V supply confirm R_ON ≤50Ω, t_ON/t_OFF ≤150ns/100ns, and logic thresholds remain functional. However, note that input logic levels must scale with V+: applying +5V logic signals to IN while V+ = +3V violates absolute maximum ratings and may damage the device.

How does the NC (normally closed) behavior of MAX4515CPA affect system power-up sequencing?

The NC behavior of MAX4515CPA ensures the analog path between COM and NC is closed when IN is un-driven or held LOW-providing default continuity during power-up, reset, or firmware initialization. This eliminates need for external pull-up/down resistors on IN and guarantees signal integrity before control logic becomes active, making MAX4515CPA ideal for fail-safe monitoring and audio bypass functions.