Analog Devices Inc./Maxim Integrated DG212EUE+T

Overview

DG212EUE+T from Maxim Integrated is a quad SPST normally open CMOS analog switch rated for ±4.5V to ±18V dual-supply operation, featuring 175Ω typical R_DS(ON), <5pF OFF-capacitance per channel, and guaranteed break-before-make switching. It serves as signal routing and multiplexing element in precision analog front-ends operating across -40°C to +85°C.

For engineers reviewing the DG212EUE+T datasheet, DG212EUE+T pinout, DG212EUE+T application, or DG212EUE+T equivalent, key selection criteria include its VL-free logic interface, latch-up immunity during hot-insertion, low charge injection (20pC), and compatibility with ±15V analog signal rails in programmable gain amplifiers and automatic test equipment.

Technical Context

The DG212EUE+T implements four independent CMOS transmission gates with inverted logic control inputs-distinct from the DG202 family-and requires no separate VL supply, simplifying system power architecture. Its monolithic design ensures matched R_DS(ON) tracking (<10% variation) and symmetrical conduction in either direction across the full ±15V analog range.

Each switch guarantees break-before-make timing (t_OFF1 = 360ns min, t_ON = 460ns min at V_S = 2V, R_L = 1kΩ, C_L = 35pF), and exhibits <±0.02nA OFF-leakage at ±14V signal swing. The TSSOP-16 package supports high-density PCB layouts while maintaining thermal derating of 9.4mW/°C above +70°C.

Key Specifications

Pinout & Package

Package: 16-pin TSSOP (4.4mm body width), RoHS-compliant, moisture sensitivity level 1, thermal pad optional (connect to V+ or leave floating).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1412BRUZ and TS5A3157DCKR, the DG212EUE+T uniquely supports true dual-supply ±15V analog operation without VL, making it irreplaceable in industrial and test equipment where bipolar signal integrity and hot-swap robustness are mandatory.

Availability

DG212EUE+T is available at Aetrix Electronics and suitable for programmable gain amplifiers, analog multiplexers, sample-and-hold circuits, communications line cards, and automatic test equipment requiring stable component supply across extended temperature ranges.

Supply support for DG212EUE+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 DG212EUE+T belongs to Maxim's high-voltage analog switch product line, engineered specifically for robust signal routing in ±15V industrial instrumentation and automated test systems where reliability under hot-insertion and wide supply tolerance are essential.

FAQ

What is the maximum analog signal voltage range supported by the DG212EUE+T?

The DG212EUE+T supports an analog signal range of ±15V when operated with ±15V supplies, and maintains functional integrity across the full ±4.5V to ±18V dual-supply range. This allows direct interfacing with legacy industrial sensors and op-amp stages without external level-shifting, and the device guarantees no latch-up even if input signals remain present while power is removed - a key reliability feature confirmed in Maxim's absolute maximum ratings table for DG212.

Does the DG212EUE+T require a separate VL logic supply voltage?

No, the DG212EUE+T does not require a VL supply. Unlike earlier generations such as the original DG212, Maxim eliminated the need for a third logic supply rail while preserving full TTL/CMOS compatibility. The DG212EUE+T accepts standard 0V/2.4V logic thresholds directly from microcontrollers or FPGAs using only V+ and V−, simplifying power architecture and reducing bill-of-materials cost - a design advantage explicitly highlighted in the Features section of the datasheet.

What is the typical on-resistance (R_DS(ON)) of the DG212EUE+T and how does it vary with signal voltage?

The DG212EUE+T has a typical R_DS(ON) of 175Ω at ±10V drain-source voltage and 1mA current, with a maximum of 200Ω across the operating temperature range. Crucially, R_DS(ON) remains essentially constant over the full analog signal range (±15V), varying less than ±5% - a performance characteristic confirmed in the Electrical Characteristics tables and emphasized in the General Description as "essentially constant on-resistance over the analog signal range."

How does the DG212EUE+T ensure signal integrity during channel switching?

The DG212EUE+T guarantees break-before-make switching with t_OFF1 ≥ 360ns and t_ON ≥ 460ns (measured at V_S = 2V, R_L = 1kΩ, C_L = 35pF), preventing momentary shorts between channels. Combined with <20pC charge injection and <5pF OFF-capacitance, this ensures minimal transient disturbance in precision sample/hold and multiplexer applications - specifications verified in the Dynamic Characteristics section of the DG212 datasheet.

What package type and thermal characteristics apply to the DG212EUE+T?

The DG212EUE+T uses a 16-pin TSSOP package (4.40mm body width) with exposed pad option, rated for operation from −40°C to +85°C. Its thermal derating is 9.4mW/°C above +70°C, yielding 755mW maximum power dissipation at +70°C - values documented in the Absolute Maximum Ratings table and Package Information section of the official Maxim datasheet for DG212EUE+T.