Analog Devices Inc./Maxim Integrated DG211CJ+

Overview

DG211CJ+ 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 analog signal ranges from –15V to +15V - used in PBX switching matrices and military radio front-end signal conditioning.

For engineers reviewing the DG211CJ+ datasheet, DG211CJ+ pinout, DG211CJ+ application, or DG211CJ+ equivalent, key selection criteria include guaranteed break-before-make switching, no VL supply requirement, nonlatching behavior with powered-down supplies, CMOS/TTL logic compatibility, and 16-pin plastic DIP packaging for through-hole prototyping and ruggedized industrial control interfaces.

Technical Context

The DG211CJ+ implements four independent SPST analog switches in a monolithic CMOS process, each with complementary control inputs driving transmission gates. Its internal architecture eliminates the third VL supply required by legacy DG211 variants, simplifying power design while maintaining full ±15V analog signal handling capability.

Switching is strictly break-before-make across all channels, with leakage currents tightly controlled: ID(OFF) ≤ ±5.0nA and IS(OFF) ≤ ±5.0nA at ±14V differential, and channel capacitance specified as CD+S(ON) = 16pF, CS(OFF) = 5pF, and CD(OFF) = 5pF - enabling low-crosstalk (<–90dB) and high OFF-isolation (≥70dB) in multiplexed test equipment signal paths.

Key Specifications

Pinout & Package

Package: 16-pin plastic DIP (0.300" wide), through-hole mount, RoHS-compliant DG211CJ+ variant rated for 0°C to +70°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4617CPE+ and ADG1412BRUZ, the DG211CJ+ uniquely combines through-hole DIP packaging, guaranteed break-before-make timing, no VL supply dependency, and proven field reliability in military and telecom infrastructure - making it optimal for legacy-compatible upgrades and ruggedized benchtop equipment.

Availability

DG211CJ+ is available at Aetrix Electronics and suitable for PBX switching matrices, military radio front-ends, and Winchester disk drive servo control requiring stable component supply across extended temperature and long-lifecycle programs.

Supply support for DG211CJ+ 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and aerospace applications.

The DG211CJ+ belongs to Maxim's legacy analog switch product line, engineered for robust bipolar signal routing in mission-critical systems where supply flexibility, latch-up immunity, and long-term component stability are mandatory.

FAQ

What is the maximum analog signal voltage range supported by the DG211CJ+?

The DG211CJ+ supports an analog signal range of –15V to +15V when operated with ±15V supplies. This range scales with supply voltage: at ±10V supplies, the usable analog range is approximately –10V to +10V. The device maintains this full-rail capability without clipping or distortion, making DG211CJ+ suitable for precision instrumentation and telecom signal conditioning where bipolar signal fidelity is essential.

Does the DG211CJ+ require a VL supply pin like older DG211 versions?

No, the DG211CJ+ does not require a VL supply pin. Maxim eliminated the third VL supply needed by earlier manufacturer versions, simplifying power design and reducing external component count. All logic and analog functions operate solely from V+ and V− rails, with CMOS/TTL-compatible inputs referenced to GND - a key differentiator confirmed in the DG211CJ+ datasheet and ordering information table.

What is the guaranteed switching behavior of the DG211CJ+ during channel transitions?

The DG211CJ+ guarantees break-before-make switching across all four channels. This means the previously selected path is fully opened before the new path closes, preventing momentary shorts between signal sources. This behavior is explicitly specified in the General Description section and verified in the Switching Time Test Circuit - critical for protecting sensitive downstream circuitry in guidance systems and test equipment.

Can the DG211CJ+ operate safely when power supplies are disconnected but analog signals remain present?

Yes, the DG211CJ+ is nonlatching and remains electrically inert when V+ and V− are disconnected while analog signals are still applied to S or D pins. This feature is guaranteed per the datasheet and enables safe operation in hot-swap or brownout scenarios common in military radios and industrial control panels - a key reliability advantage over non-qualified analog switches.

What package type and temperature grade does the DG211CJ+ use?

The DG211CJ+ uses a 16-pin plastic DIP (dual in-line package) with 0.300" body width and is rated for 0°C to +70°C operation. This through-hole package supports manual prototyping, socket-based testing, and legacy board replacements. The "C" suffix in DG211CJ+ denotes commercial temperature grade, and the "J" indicates plastic DIP packaging - consistent with Maxim's official ordering information table.