Analog Devices Inc./Maxim Integrated DG408EUE+T

Overview

DG408EUE+T from Maxim Integrated is a precision 1-of-8 CMOS analog multiplexer/demultiplexer designed for bidirectional signal routing in high-fidelity data-acquisition and test systems. It delivers guaranteed 100Ω max on-resistance, 8Ω max channel-to-channel matching, 15pC max charge injection, ±5V to ±20V dual-supply operation, and rail-to-rail analog signal handling up to ±10V with 15V supplies.

For engineers reviewing the DG408EUE+T datasheet, DG408EUE+T pinout, DG408EUE+T application, or DG408EUE+T equivalent, key selection criteria include on-resistance flatness (9Ω max), input leakage (<5nA at +85°C), enable-controlled switching (tON(EN) = 150ns typ), and TSSOP-16 packaging for space-constrained PCB layouts.

Technical Context

The DG408EUE+T implements a CMOS transmission-gate architecture with integrated decoder logic, supporting 3-bit address inputs (A0–A2) and an active-low enable (EN) to select one of eight bidirectional analog channels (S1–S8) to the common drain (D). Its design ensures symmetrical conduction and minimal signal distortion across the full analog range.

It operates from ±5V to ±20V dual supplies or +5V to +30V single supply (V− tied to GND), with TTL/CMOS-compatible digital inputs and ESD protection exceeding 2000V per MIL-STD-883 Method 3015.7. All electrical parameters-including rDS(ON), charge injection, and off-leakage-are fully specified over −40°C to +85°C.

Key Specifications

Pinout & Package

Package: 16-pin TSSOP (U16-1), 4.4mm × 5.0mm body, 0.65mm pitch, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG408BRUZ and MAX4617ESE+, the DG408EUE+T uniquely guarantees both 8Ω channel matching and 15pC charge injection-making it the only option qualified for high-accuracy, multi-sensor data-acquisition systems requiring channel-to-channel consistency and low sampling error.

Availability

DG408EUE+T is available at Aetrix Electronics and suitable for test equipment, guidance and control systems, and data-acquisition systems requiring stable component supply, long-term lifecycle support, and guaranteed performance across −40°C to +85°C.

Supply support for DG408EUE+T 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing markets.

The DG408EUE+T belongs to Maxim's precision analog switch family, engineered specifically for applications demanding low distortion, tight channel matching, and robust operation in harsh thermal environments.

FAQ

What is the maximum supply voltage range supported by the DG408EUE+T?

The DG408EUE+T operates with ±5V to ±20V dual supplies or +5V to +30V single supply (with V− tied to GND). Absolute maximum ratings allow V+ up to +44V referenced to V−, but functional operation is limited to the specified ranges. Exceeding ±20V or +30V risks permanent damage per the absolute maximum ratings table.

Does the DG408EUE+T require external pull-up resistors on its address or enable pins?

No, the DG408EUE+T does not require external pull-up resistors. Its digital inputs (A0, A1, A2, EN) are TTL/CMOS compatible with defined thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V) and have input currents of ±1.0µA max. Direct connection to microcontroller GPIO or FPGA outputs is sufficient for reliable logic-level control of the DG408EUE+T.

Is the DG408EUE+T pin-compatible with older DG408 variants like DG408CJ or DG408CY?

Yes, the DG408EUE+T is pin-compatible with all industry-standard DG408 packages including DG408CJ (16-DIP), DG408CY (16-SO), and DG408CUE (16-TSSOP). The pinout, function mapping, and footprint match exactly-enabling drop-in replacement without PCB modification.

What is the typical on-resistance flatness specification for the DG408EUE+T, and why does it matter?

The DG408EUE+T guarantees 9Ω max on-resistance flatness-the difference between maximum and minimum rDS(ON) measured across the full analog signal range (e.g., ±10V). This ensures consistent gain and minimal harmonic distortion in audio and instrumentation applications where signal amplitude varies widely across the channel's operating range.

Can the DG408EUE+T be used in single-supply systems with a 3.3V logic interface?

Yes, the DG408EUE+T supports 3.3V logic interfaces when operated with appropriate supplies-for example, V+ = +12V, V− = GND, and digital inputs driven by 3.3V CMOS levels (VAL ≤ 0.8V, VAH ≥ 2.4V). Its input thresholds are compatible with standard 3.3V logic families, and no level-shifting circuitry is needed to control the DG408EUE+T.