Analog Devices Inc./Maxim Integrated DG1208ETE+

Overview

DG1208ETE+ from Maxim Integrated is a low-leakage, single 8-channel analog multiplexer IC used for precision signal routing in high-fidelity data acquisition paths. 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 automatic test equipment and sample-and-hold systems.

For engineers reviewing the DG1208ETE+ datasheet, DG1208ETE+ pinout, DG1208ETE+ application, or DG1208ETE+ equivalent, key selection criteria include leakage-critical switching performance, charge-injection–sensitive settling behavior, bipolar/single-supply flexibility, GPIO-compatible address control (A2/A1/A0), and enable-driven power gating in multichannel analog front-ends.

Technical Context

The DG1208ETE+ implements a single-pole, 8-throw (SP8T) analog switch architecture with three binary address inputs (A2, A1, A0) and an active-high enable (EN). Its CMOS-based switch cells deliver rail-to-rail signal handling across the full analog range from VNEG to VPOS.

It operates over –40°C to +85°C with guaranteed leakage and charge injection specs under both ±15V bipolar and +12V single-supply conditions. The device uses low-capacitance switch design (4pF NO_ off-capacitance, 10pF COM_ on-capacitance) to minimize glitch energy and support fast settling in precision measurement paths.

Key Specifications

Pinout & Package

DG1208ETE+ is housed in a 4mm × 4mm, 16-lead TQFN package with exposed pad (Package Code: T1644+4, Outline No.: 21-0139). Thermal resistance is θJA = 59.3°C/W (single-layer board) and θJC = 6°C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1208BRUZ and TMUX1208RTER, DG1208ETE+ uniquely balances ultra-low leakage (≤1nA), low charge injection (≤0.5pC), and TQFN thermal performance (θJA = 59.3°C/W), making it optimal for thermally constrained, high-accuracy ATE and medical DAQ systems where signal integrity dominates cost or logic-voltage trade-offs.

Availability

DG1208ETE+ 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 extended temperature and long-lifecycle deployments.

Supply support for DG1208ETE+ 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, mixed-signal, and power management ICs for industrial, medical, and communications applications.

The DG1208ETE+ belongs to Maxim's precision analog multiplexer product line, engineered specifically for low-distortion, low-leakage signal routing in metrology-grade test and measurement systems.

FAQ

What supply voltages does the DG1208ETE+ support?

The DG1208ETE+ supports ±15V bipolar supplies (VPOS = +15V, VNEG = –15V) or +12V single supply (VNEG tied to GND). It operates across the full analog range from VNEG to VPOS, enabling rail-to-rail signal handling. Absolute maximum ratings allow VPOS up to +20.5V and VNEG down to –20.5V, but specified performance is guaranteed only within the ±15V or +12V operating ranges.

How does the DG1208ETE+ handle channel selection and enable control?

The DG1208ETE+ uses three binary address inputs (A2, A1, A0) to select one of eight analog channels (NO1–NO8) to connect to the common terminal (COM). An active-high enable (EN) input gates all switching: when EN is low, all channels remain open regardless of address state. When EN is high, the selected channel conducts bidirectionally per the A2A1A0 code, supporting flexible sequencing and power-gated operation in the DG1208ETE+.

What is the significance of ≤0.5pC charge injection in the DG1208ETE+?

The ≤0.5pC typical charge injection in the DG1208ETE+ directly limits voltage glitch amplitude on hold capacitors in sample-and-hold circuits. For example, with a 10nF hold capacitor, 0.5pC injection causes only 50µV step error - well below 1 LSB of a 16-bit 10V-range ADC. This enables fast, accurate settling without post-switching correction algorithms in the DG1208ETE+.

Can the DG1208ETE+ be used in single-supply systems?

Yes, the DG1208ETE+ is fully specified for +12V single-supply operation. In this configuration, VNEG is connected to GND, and the analog signal range becomes 0V to +12V. Key parameters such as on-resistance (165Ω typ), leakage (≤1nA), and THD+N (0.1%) remain guaranteed across –40°C to +85°C, making the DG1208ETE+ suitable for embedded DAQ and portable instrumentation with simplified power architecture.

What package options are available for the DG1208ETE+?

The DG1208ETE+ is supplied exclusively in a 4mm × 4mm, 16-lead TQFN package with exposed pad (RoHS-compliant, + suffix). This differs from the pin-compatible DG1208EUE+ variant, which uses a 16-TSSOP package. The TQFN offers superior thermal performance (θJA = 59.3°C/W on single-layer board) and smaller footprint - critical for space-constrained ATE and medical PCB layouts using the DG1208ETE+.