Analog Devices Inc./Maxim Integrated DG441CEE

Overview

DG441CEE from Maxim Integrated is a quad, normally-closed (NC), single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in bipolar or single-supply systems. It delivers 85Ω max on-resistance, 4Ω max on-resistance matching between channels, 9Ω max on-resistance flatness, 10pC max charge injection, and operates from ±4.5V to ±20V or +10V to +30V supplies - enabling rail-to-rail analog signal handling in test equipment and communication systems.

For engineers reviewing the DG441CEE datasheet, DG441CEE pinout, DG441CEE application, or DG441CEE equivalent, key selection criteria include guaranteed r_DS(ON) match over temperature, low leakage (<5nA at +85°C), TTL/CMOS logic compatibility, ESD tolerance (2000V min), and dual- or single-supply flexibility without performance compromise.

Technical Context

The DG441CEE implements four independent NC SPST switches using Maxim's 44V silicon-gate process, supporting bidirectional conduction with matched channel characteristics. Its internal architecture ensures consistent r_DS(ON) across all four switches and guarantees flat on-resistance over the full analog signal range (±15.5V with ±16.5V supplies).

Logic control is TTL/CMOS-compatible with input thresholds of 0.8V (low) and 2.4V (high); switching times are under 250ns t_ON and 170ns t_OFF at ±15V. The device requires no external biasing for rail-to-rail operation and maintains low off-leakage (<5nA at +85°C) and low power consumption (1.65mW max).

Key Specifications

Pinout & Package

DG441CEE is supplied in a 16-pin narrow SO (Small Outline) package with exposed pad (EP), rated for -40°C to +85°C operation. The exposed pad must be connected to V+ for thermal and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG441BRZ and TS5A23157DCUR, DG441CEE uniquely balances high-voltage bipolar operation, guaranteed 4Ω channel matching, and 2000V ESD tolerance - making it irreplaceable in ruggedized test instrumentation and telecom infrastructure where supply flexibility and channel uniformity are non-negotiable.

Availability

DG441CEE is available at Aetrix Electronics and suitable for test equipment signal routing, communication system channel switching, sample-and-hold circuit protection, battery-powered medical instrumentation, and military radio subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DG441CEE 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 computing applications.

The DG441CEE belongs to Maxim's precision analog switch product line, engineered specifically for applications demanding matched on-resistance, low charge injection, and robust operation across wide supply and temperature ranges - including automated test equipment and military-grade radios.

FAQ

What is the logic polarity of DG441CEE switches?

The DG441CEE features normally closed (NC) SPST switches: each switch conducts (S-D path closed) when its corresponding IN pin is logic low (≤0.8V), and opens when IN is logic high (≥2.4V). This inverted logic behavior is inherent to the DG441 family and differs from the DG442's normally open configuration. DG441CEE maintains this behavior across its full operating temperature range (-40°C to +85°C) and supply conditions.

Does DG441CEE support rail-to-rail analog signal operation?

Yes, DG441CEE supports true rail-to-rail analog signal handling: with ±16.5V supplies, the analog signal range extends from -15.5V to +15.5V; with +12V single supply, it spans 0V to +12V. This capability is enabled by its silicon-gate process and internal level-shifting, allowing undistorted passage of signals that swing fully between the supply rails - critical for interfacing with high-output op-amps and DACs.

What is the maximum allowable voltage difference between V+ and V− for DG441CEE?

The absolute maximum voltage difference between V+ and V− for DG441CEE is 44V, as specified in the Absolute Maximum Ratings table. Exceeding this limit risks permanent damage. For reliable operation, the recommended bipolar supply range is ±4.5V to ±20V (i.e., 9V to 40V total span), and the single-supply range is +10V to +30V (with V− tied to GND). Operation at ±20V (40V span) is within specification and commonly used in industrial signal conditioning.

How is the exposed pad (EP) used in the DG441CEE SO package?

In the DG441CEE narrow SO package, the exposed pad (EP) must be electrically and thermally connected to V+. It is not a standalone power connection - V+ must also be routed to Pin 11. The EP improves thermal dissipation and reduces package inductance, contributing to stable high-frequency performance and lower junction temperature rise under load. Leaving the EP floating or connecting it to GND violates the datasheet requirement and may cause malfunction or reliability degradation.

Can DG441CEE be operated from an unbalanced supply like +24V and -5V?

Yes, DG441CEE supports unbalanced supplies such as +24V and -5V, provided the total V+–V− differential remains ≤44V and individual supply pins stay within their absolute maximum ratings (V+ ≤ 44V referenced to V−, GND ≤ 25V referenced to V−). In this example, V+–V− = 29V - well within spec. Analog signal range adjusts accordingly (e.g., ~-4V to +23V), and performance parameters like r_DS(ON) and leakage remain valid as long as operating conditions fall within datasheet limits.