Analog Devices Inc./Maxim Integrated DG211EGE

Overview

DG211EGE from Maxim Integrated is a quad SPST normally closed analog switch IC designed for precision signal routing in bipolar supply systems. It operates across ±4.5V to ±18V, delivers 175Ω max R_DS(ON) at ±15V, exhibits 1000ns max turn-on time and 500ns max turn-off time, and supports -40°C to +85°C industrial temperature range in a 16-pin QFN (5×5 mm) package - used in test equipment signal path switching.

For engineers reviewing the DG211EGE datasheet, DG211EGE pinout, DG211EGE application, or DG211EGE equivalent, key selection criteria include guaranteed break-before-make operation, no VL supply requirement, nonlatching behavior under powered-down conditions with live inputs, CMOS/TTL logic compatibility, and low leakage (<5 nA OFF-state).

Technical Context

The DG211EGE implements four independent, normally closed analog switches using monolithic CMOS process technology. Each switch features symmetrical analog signal handling from -15V to +15V, with bidirectional current capability up to 20mA continuous per channel.

Its control architecture accepts standard TTL/CMOS logic levels on four dedicated INx pins, directly driving internal gate circuitry without requiring an auxiliary VL supply - distinguishing it from legacy DG211 variants. Switching timing is characterized with RL = 1kΩ and CL = 35pF under ±15V supplies.

Key Specifications

Pinout & Package

Package: 16-pin QFN (5 mm × 5 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4617ESE+ and ADG1412BRUZ, the DG211EGE uniquely balances wide-supply operation, no-VL architecture, industrial temperature range, and mature qualification - making it optimal for cost-conscious, high-reliability analog switching where ±15V rails are standard.

Availability

DG211EGE is available at Aetrix Electronics and suitable for test equipment signal routing, Winchester disk drive head selection, PBX/PABX channel switching, and military radio audio path management requiring stable component supply and long-term industrial-grade availability.

Supply support for DG211EGE 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, communications, and computing markets.

The DG211EGE belongs to Maxim's legacy analog switch product line, engineered specifically for robust, fault-tolerant signal routing in bipolar-powered systems where reliability under abnormal supply conditions is critical.

FAQ

What is the maximum analog signal voltage range supported by the DG211EGE?

The DG211EGE supports an analog signal range of ±15V, meaning it can pass signals from -15V to +15V without distortion or clipping. This specification is guaranteed under ±15V supply conditions and applies to all four SPST channels. The device remains functional across the full ±4.5V to ±18V supply range, but analog signal swing is limited to the supply rails minus small internal headroom - confirmed in the Electrical Characteristics table under VANALOG parameter.

Does the DG211EGE require a third VL supply voltage like some legacy analog switches?

No, the DG211EGE does not require a third VL supply. Unlike earlier DG211 versions from the original manufacturer, Maxim's DG211EGE integrates internal level-shifting circuitry that eliminates the need for a separate VL rail. All logic interface functionality operates directly from the main V+ and V- supplies, simplifying power design and reducing system component count - explicitly stated in the Features section and Ordering Information table.

What is the guaranteed switching speed performance of the DG211EGE at room temperature?

The DG211EGE has a guaranteed maximum turn-on time of 1000ns and maximum turn-off time of 500ns at TA = +25°C, V+ = +15V, V- = -15V, RL = 1kΩ, and CL = 35pF. These values are specified in the Electrical Characteristics table under t_ON and t_OFF1/t_OFF2. Performance remains within these limits across the full -40°C to +85°C operating range, though typical values may improve at elevated temperatures.

How does the DG211EGE behave when power supplies are disconnected while analog signals remain present?

The DG211EGE is guaranteed nonlatching under such fault conditions: it will not enter a destructive high-current state if V+ or V- is removed while analog signals are still applied to S or D terminals. This behavior is enabled by internal protection structures and is explicitly validated in the Absolute Maximum Ratings and General Description sections - a key reliability feature distinguishing it from non-qualified alternatives.

What package type and footprint does the DG211EGE use, and is thermal pad connection required?

The DG211EGE uses a 16-pin QFN package measuring 5 mm × 5 mm with 0.5 mm pitch and includes an exposed thermal pad. Per Maxim's package drawing 32L QFN and PCB layout recommendations, the thermal pad must be soldered to a solid copper thermal plane on the PCB for proper heat dissipation and electrical stability - especially critical given its 1538mW max power dissipation rating at +70°C ambient.