Analog Devices Inc./Maxim Integrated MAX301EPE

Overview

The MAX301EPE from Maxim Integrated is a precision dual SPST analog switch optimized for high-accuracy signal routing in bipolar or single-supply systems. It features 35Ω max on-resistance, <2Ω channel-to-channel match, <15pC charge injection, rail-to-rail analog signal handling (V− to V+), and operates across −40°C to +85°C. It is used in military radios, test equipment, and guidance systems requiring low distortion and stable switching.

For engineers reviewing the MAX301EPE datasheet, MAX301EPE pinout, MAX301EPE application, or MAX301EPE equivalent, key selection criteria include guaranteed on-resistance flatness (Δ3Ω max), sub-100ns turn-off time, −40°C to +85°C extended temperature rating, dual SPST NO configuration, and compatibility with ±4.5V to ±20V or +10V to +30V supplies.

Technical Context

The MAX301EPE implements two independent normally-open analog switches fabricated using Maxim's silicon-gate process, enabling low charge injection (15pC typ) and ultra-low leakage (<6nA at +85°C). Its CMOS/TTL-compatible logic inputs (VL = +5V) drive internal transmission gates without external level-shifting.

It supports rail-to-rail analog signals from V− to V+, with on-resistance flatness maintained over full signal range and temperature (−40°C to +85°C). The device requires no power-up sequencing when used with blocking diodes, and its substrate-connected V+ pin ensures latch-up immunity in mixed-signal environments.

Key Specifications

Pinout & Package

MAX301EPE is housed in a 16-pin plastic DIP (P16-1) package with through-hole mounting and 0.3-inch width. Pin 11 is V+ (substrate-connected), Pin 13 is GND (negative supply return), and Pins 1/8 are COM1/COM2 - the common analog terminals serving as drains in the internal MOSFET structure.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1419BRUZ and TS5A23157DRCR, the MAX301EPE uniquely supports true bipolar analog signal ranges (±15V), guarantees on-resistance matching under temperature extremes, and delivers lower charge injection-making it irreplaceable in military, aerospace, and high-fidelity test instrumentation where signal fidelity and environmental robustness are non-negotiable.

Availability

MAX301EPE is available at Aetrix Electronics and suitable for military radio front-ends, automated test equipment (ATE), and guidance system sensor interfaces requiring stable component supply across extended temperature and long product lifecycles.

Supply support for MAX301EPE 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 ICs for demanding industrial, automotive, and defense applications.

The MAX301EPE belongs to Maxim's precision analog switch family, engineered specifically for high-accuracy signal routing in systems requiring guaranteed matching, low glitch energy, and operation across wide supply and temperature ranges.

FAQ

What is the maximum analog signal voltage range supported by the MAX301EPE?

The MAX301EPE supports rail-to-rail analog signals from V− to V+, with absolute maximum ratings of V+ ≤ 44V referenced to V−. When operated with ±15V supplies, it handles analog signals from −15V to +15V. This capability is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics section of the MAX301EPE datasheet, where VANA is specified as V− to V+ across all temperature grades.

Does the MAX301EPE require external level-shifting for TTL-compatible control inputs?

No, the MAX301EPE does not require external level-shifting. Its logic inputs are TTL/CMOS compatible when VL is tied to +5V, accepting VINH ≥ +2.4V and VINL ≤ +0.8V directly. This is verified in the Electrical Characteristics table under "Input-Voltage High/Low" and confirmed in the Applications Information section, which states that TTL compatibility is maintained across the full ±4.5V to ±20V supply range as long as VL = +5V.

Can the MAX301EPE be used with a single +24V supply instead of split supplies?

Yes, the MAX301EPE supports single-supply operation from +10V to +30V. With a +24V supply, V− is connected to ground (0V), V+ to +24V, and analog signals can swing from 0V to +24V. This configuration is explicitly listed in the General Description and Ordering Information sections, and the on-resistance vs. VCOM curve (MAX301-3) validates performance under V− = 0V conditions.

What is the guaranteed on-resistance match between the two switches in the MAX301EPE?

The MAX301EPE guarantees on-resistance match between its two SPST switches to within 2Ω over the full temperature range (−40°C to +85°C), as stated in both the Features list and the Electrical Characteristics table under "On-Resistance Match Between Channels". This specification applies at V+ = 15V, V− = −15V, and is validated across all operating conditions defined for the E-grade part.

Is the MAX301EPE pin-compatible with other members of the MAX301/MAX303/MAX305 family in the same package?

No, the MAX301EPE is not pin-compatible with MAX303EPE or MAX305EPE, despite sharing the same 16-pin DIP package. The pin functions differ significantly: MAX301EPE uses Pins 9/16 as NC1/NC2 (NO terminals), while MAX303EPE assigns Pins 9/16 to COM3/COM4 and MAX305EPE to COM3/COM4 with NO3/NO4 on different pins. This is clearly shown in the Pin Configurations diagrams and Pin Descriptions table for each device.