Analog Devices Inc./Maxim Integrated DG1208EUE+T

Overview

DG1208EUE+T from Maxim Integrated is a low-leakage, single 8-channel analog multiplexer IC used for precision signal routing in high-fidelity data acquisition and test systems. It features 100Ω typical on-resistance, ≤1nA max on/off-leakage at +85°C, ≤0.5pC typical charge injection, and rail-to-rail operation with ±15V bipolar or +12V single supply. It serves as the front-end channel selector in automated test equipment where low glitch and fast settling are critical.

For engineers reviewing the DG1208EUE+T datasheet, DG1208EUE+T pinout, DG1208EUE+T application, or DG1208EUE+T equivalent, key selection criteria include leakage performance at temperature extremes, charge injection impact on sample-and-hold accuracy, EN-controlled power gating, and compatibility with both TQFN and TSSOP PCB footprints.

Technical Context

The DG1208EUE+T implements a single-pole, 8-throw (SP8T) analog switch architecture controlled by three address inputs (A2/A1/A0) and an enable (EN) signal. Its CMOS process delivers rail-to-rail analog signal handling across the full ±15V or +12V supply range, with bidirectional conduction and break-before-make switching to prevent channel shorting.

It achieves distortion-free measurement via ultra-low charge injection (0.5pC typ) and low off-capacitance (4pF NO_, 15pF COM_), enabling fast settling (<400ns turn-on) and high off-isolation (–80dB). The device operates over –40°C to +85°C and supports GPIO-compatible digital control (VIH = 2.4V, VIL = 0.8V).

Key Specifications

Pinout & Package

Package: 16-lead TSSOP (4.4mm × 5.0mm), RoHS-compliant, exposed pad not connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1208BRUZ and TMUX1208PWR, DG1208EUE+T uniquely balances ultra-low leakage (≤1nA), low charge injection (0.5pC), and dual-supply operation (±15V or +12V) - making it the only option qualified for high-accuracy, mixed-rail ATE and precision DAQ where signal integrity dominates cost or RON trade-offs.

Availability

DG1208EUE+T is available at Aetrix Electronics and suitable for automatic test equipment, precision data acquisition systems, and sample-and-hold circuits requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for DG1208EUE+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, designs precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.

The DG1208EUE+T belongs to Maxim's low-leakage analog switch family, engineered specifically for high-fidelity signal routing in test and measurement systems where charge injection, leakage, and settling time directly impact measurement validity.

FAQ

What supply voltages does the DG1208EUE+T support?

The DG1208EUE+T operates with either ±15V bipolar supplies (VPOS = +15V, VNEG = –15V) or a +12V single supply (VNEG tied to GND). It guarantees full rail-to-rail analog signal handling across both configurations, with specifications validated over the –40°C to +85°C temperature range. DG1208EUE+T maintains ≤1nA leakage and 100Ω on-resistance under these conditions.

How does the DG1208EUE+T minimize signal distortion during switching?

The DG1208EUE+T minimizes distortion via ultra-low charge injection (0.5pC typical), low on-resistance flatness (17Ω typical), and 0.1% THD+N over 20Hz–20kHz. Its break-before-make timing (50ns) prevents transient shorts, while matched channel RON (≤30Ω max variation) ensures consistent gain across all 8 paths - critical for multi-sensor DAQ linearity. DG1208EUE+T achieves this without external calibration.

Can the DG1208EUE+T be used in single-supply systems?

Yes - the DG1208EUE+T is fully specified for +12V single-supply operation. In this mode, VNEG is connected to GND, and the analog signal range extends from 0V to +12V. Key parameters including on-resistance (165Ω typical), leakage (≤1nA), and charge injection (0.5pC) remain guaranteed. DG1208EUE+T retains GPIO-compatible control inputs (VIH = 2.4V) and requires no design changes when migrating from bipolar to single-supply use.

What is the maximum operating temperature for the DG1208EUE+T?

The DG1208EUE+T is rated for continuous operation from –40°C to +85°C ambient temperature. All electrical specifications - including leakage current (≤1nA max), on-resistance (100Ω typ), and charge injection (0.5pC typ) - are guaranteed across this full range. Thermal resistance (θJA = 90°C/W on 4-layer board) ensures safe junction temperatures below 150°C even at maximum load, confirming DG1208EUE+T suitability for enclosed industrial enclosures.

Does the DG1208EUE+T require external bypass capacitors?

Yes - the DG1208EUE+T requires a minimum 0.1μF ceramic capacitor placed as close as possible between VPOS and GND, and another between VNEG and GND. These bypass capacitors stabilize the internal switch array and reduce noise coupling into analog paths. Failure to install them risks increased THD+N, degraded off-isolation, and erratic switching behavior. DG1208EUE+T datasheet specifies this as mandatory for all operating conditions.