Analog Devices Inc./Maxim Integrated MAX4066EPD+

Overview

MAX4066EPD+ from Maxim Integrated is a quad, single-pole single-throw (SPST), CMOS analog switch optimized for low-voltage operation from +2.0V to +16V, featuring 45Ω on-resistance at 12V, 2Ω channel-to-channel matching (MAX4066A variant), and 100pA off-leakage current at +25°C. It serves as a bilateral signal routing device in battery-powered instrumentation and low-distortion audio paths.

For engineers reviewing the MAX4066EPD+ datasheet, MAX4066EPD+ pinout, MAX4066EPD+ application, or MAX4066EPD+ equivalent, key selection criteria include guaranteed on-resistance flatness (≤6Ω), TTL/CMOS-compatible control inputs, -58dB off-isolation at 1MHz, 100MHz on-channel bandwidth, and ESD robustness (>2000V per Method 3015.7).

Technical Context

The MAX4066EPD+ implements four independent SPST switches using complementary CMOS transistor pairs, enabling bidirectional analog signal flow between COM and NO terminals. Its architecture supports rail-to-rail signal handling (0V to V+) with no requirement for dual supplies.

Switching is controlled by four logic inputs (IN1–IN4) compatible with TTL and CMOS voltage thresholds. Each channel exhibits matched on-resistance across temperature and supply voltage, with guaranteed flatness over the full analog range - critical for precision multiplexing and sample-and-hold accuracy.

Key Specifications

Pinout & Package

MAX4066EPD+ is housed in a 14-pin plastic DIP package (0.300" wide), RoHS-compliant and lead-free. Pin spacing is 0.100", body width 0.300", and total height ≤0.200".

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4066CPD+, MAX4066EPD+ extends operational reliability to -40°C ambient and improves leakage by 10×; versus ADG408BRUZ, it trades channel count for lower RON, tighter matching, and superior leakage performance - making it optimal for 4-channel, low-error, battery-sensitive designs.

Availability

MAX4066EPD+ is available at Aetrix Electronics and suitable for battery-operated equipment, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply across industrial temperature ranges.

Supply support for MAX4066EPD+ 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 high-performance analog and mixed-signal ICs for industrial, medical, communications, and consumer applications.

The MAX4066 family targets low-voltage, low-leakage analog switching - specifically engineered for precision signal routing where rail-to-rail operation, minimal distortion, and long-term stability in harsh environments are essential.

FAQ

What is the maximum supply voltage rating for MAX4066EPD+?

The absolute maximum supply voltage for MAX4066EPD+ is +17V referenced to GND. Continuous operation is specified from +2.0V to +16V. Exceeding +17V may cause permanent damage. The device's internal ESD protection diodes clamp signals beyond V+ or GND, but forward current must remain below 30mA per terminal to avoid degradation. MAX4066EPD+ maintains guaranteed performance across its full +2.0V to +16V range.

Does MAX4066EPD+ support bidirectional analog signal flow?

Yes, MAX4066EPD+ supports fully bidirectional analog signal flow between each COM and NO terminal pair. As a CMOS-based SPST switch, it imposes no polarity constraints - signals can pass from COM to NO or NO to COM with identical on-resistance and distortion characteristics. This behavior is inherent to its complementary MOSFET structure and is validated across the full 0V to V+ analog signal range, making MAX4066EPD+ suitable for AC-coupled and DC-coupled applications alike.

What is the guaranteed on-resistance match between channels for MAX4066EPD+?

MAX4066EPD+ is the -40°C to +85°C extended temperature grade of the MAX4066A variant, which guarantees ≤2Ω on-resistance match (∆RON) between any two channels at +25°C and V+ = 12V. This specification holds across the full operating temperature range and supply voltage (2.0V–16V), ensuring consistent gain and timing across all four switches - critical for multiplexer accuracy and channel calibration in data acquisition systems using MAX4066EPD+.

Can MAX4066EPD+ operate from a 3V supply, and what is its on-resistance at that voltage?

Yes, MAX4066EPD+ is fully specified at +3V supply. At V+ = 3V, its typical on-resistance is 170Ω (max), measured with ICOM = −1.0mA and VNO = 1.5V. This value increases relative to higher supply voltages due to reduced MOSFET enhancement, but remains tightly controlled and guaranteed across temperature. The 3V capability makes MAX4066EPD+ compatible with modern low-power microcontrollers and battery-powered systems where supply headroom is constrained.

Is MAX4066EPD+ pin-compatible with industry-standard logic devices?

Yes, MAX4066EPD+ is pin-compatible with the 74HC4066, sharing identical pin assignments for V+, GND, IN1–IN4, COM1–COM4, and NO1–NO4 in the 14-pin DIP package. This allows direct substitution in existing 74HC4066-based layouts without PCB modification. However, MAX4066EPD+ delivers superior analog performance - including lower on-resistance, tighter channel matching, and orders-of-magnitude lower leakage - while maintaining full logic-level compatibility with TTL and CMOS drivers.