Analog Devices Inc./Maxim Integrated DG442CEE

Overview

DG442CEE from Maxim Integrated is a quad, normally open (NO), single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in bipolar or single-supply systems. It features 85Ω max on-resistance, <5nA off-leakage at +85°C, 10pC max charge injection, rail-to-rail analog signal handling (±15.5V), and TTL/CMOS logic compatibility - enabling use in test equipment front-ends and audio-signal switching paths.

For engineers reviewing the DG442CEE datasheet, DG442CEE pinout, DG442CEE application, or DG442CEE equivalent, key selection criteria include guaranteed on-resistance matching (4Ω max between channels), on-resistance flatness (9Ω max over signal range), dual-supply operation (±4.5V to ±20V), single-supply support (+10V to +30V), and ESD tolerance (2000V min per Method 3015.7).

Technical Context

The DG442CEE implements four independent SPST switches with active-high logic control and NO configuration - each channel conducts only when its corresponding INx input is high. Its silicon-gate 44V process ensures robust operation across wide supply ranges and temperature extremes (-40°C to +85°C).

Switching is bidirectional with matched r_DS(ON) and low flatness, enabling accurate signal transmission without polarity bias. Charge injection is tightly controlled (10pC max) to minimize sampling error in sample-and-hold circuits, while off-isolation rejection exceeds 60dB at 1MHz.

Key Specifications

Pinout & Package

Package: 16-pin narrow SO (SOIC-16), lead(Pb)-free option available with "+" suffix (DG442CEE+).

Key Features

Applications

Equivalent & Alternatives

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

Compared with DG442CEE, ADG442BRZ offers tighter charge injection for metrology-grade sampling but lacks the same off-leakage spec at +85°C; TS5A3157DCKR provides ultra-low on-resistance at 3.3V but cannot replace DG442CEE in bipolar, high-voltage, or quad-channel applications.

Availability

DG442CEE is available at Aetrix Electronics and suitable for test equipment multiplexing, audio signal routing, and sample-and-hold front-ends requiring stable component supply, long-term industrial temperature support, and verified analog switch performance.

Supply support for DG442CEE 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 DG442CEE belongs to Maxim's legacy precision analog switch family, engineered for demanding signal integrity applications including automated test equipment, military comms, and high-fidelity audio - where low leakage, matched on-resistance, and rail-to-rail operation are essential.

FAQ

What is the maximum allowable supply voltage for DG442CEE?

The DG442CEE supports bipolar supplies from ±4.5V to ±20V and single supplies from +10V to +30V. Absolute maximum ratings specify V+ ≤ 44V referenced to V−, and continuous operation beyond ±20V or +30V risks permanent damage. The DG442CEE is fabricated using a 44V silicon-gate process, but operational limits remain ±20V/30V per datasheet specifications.

Does DG442CEE support rail-to-rail analog signal operation?

Yes, the DG442CEE supports true rail-to-rail analog signal handling: with ±16.5V supplies, it passes signals from −15.5V to +15.5V; with +12V single supply (V− = GND), it handles 0V to +12V. This capability eliminates external level-shifting circuitry in many precision signal-path designs using DG442CEE.

What is the logic configuration of DG442CEE versus DG441CEE?

The DG442CEE is a normally open (NO) quad SPST switch: each channel conducts only when its INx input is logic high. In contrast, DG441CEE is normally closed (NC). Both share identical pinout, supply specs, and analog performance - making them drop-in functional complements in system design where fail-safe or default-state behavior differs.

How does DG442CEE achieve low charge injection, and why does it matter?

The DG442CEE achieves ≤10pC max charge injection via matched transistor geometry and optimized gate drive timing - minimizing net charge dumped onto the signal path during switching. This is critical in sample-and-hold circuits and precision ADC front-ends, where excess charge injection causes voltage glitches and degrades effective resolution; DG442CEE's spec ensures <1 LSB error in 12-bit+ systems.

Is DG442CEE available in lead(Pb)-free packaging?

Yes, DG442CEE is offered in both leaded and lead(Pb)-free versions. To order the RoHS-compliant variant, append the "+" symbol to the part number (i.e., DG442CEE+). The narrow SO package (16-pin) used for DG442CEE meets JEDEC standards for lead-free reflow, and Maxim documents full qualification data for this variant in its packaging specification documents.