Analog Devices Inc./Maxim Integrated DG211CJ

Overview

DG211CJ from Maxim Integrated is a quad SPST normally closed analog switch IC designed for high-voltage signal routing in precision analog systems. It operates across ±4.5V to ±18V dual supplies, delivers 175Ω max R_DS(ON) at ±15V, exhibits 1000ns max turn-on time, and supports ±15V analog signal range - enabling use in test equipment front-ends and military radio channel switching.

For engineers reviewing the DG211CJ datasheet, DG211CJ pinout, DG211CJ application, or DG211CJ equivalent, key selection considerations include guaranteed break-before-make timing, no VL supply requirement, nonlatching behavior under powered-off signal presence, and compatibility with TTL/CMOS logic levels in industrial and defense-grade analog signal paths.

Technical Context

The DG211CJ implements four independent CMOS SPST switches with normally closed topology, each featuring internal level-shifting circuitry that eliminates the need for a third VL supply. Its architecture ensures latch-up immunity even when input signals remain present during power-down sequences.

Switching is controlled by four digital inputs (IN1–IN4), each driving a dedicated channel with guaranteed break-before-make timing to prevent signal shorting. The device uses monolithic low-power CMOS process technology optimized for low leakage (<5nA OFF-state) and stable R_DS(ON) over temperature and supply voltage variation.

Key Specifications

Pinout & Package

Package: 16-pin plastic DIP (0°C to +70°C operating range). Body dimensions per JEDEC MS-001, 0.300" wide.

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 ±18V operation, no-VL architecture, and guaranteed break-before-make timing - making it the only option among the three that supports direct drop-in replacement in legacy ±15V military and test equipment without supply or layout redesign.

Availability

DG211CJ is available at Aetrix Electronics and suitable for Winchester disk drives, automated test equipment, and military radio systems requiring stable component supply across extended product lifecycles.

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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and defense markets.

The DG211CJ belongs to Maxim's precision analog switch product line, engineered specifically for robust signal routing in high-reliability applications where supply flexibility, latch-up immunity, and simplified power architecture are critical design requirements.

FAQ

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

The DG211CJ supports an analog signal range of ±15V when operated with ±15V supplies. This is specified in the Electrical Characteristics table under VANALOG, and applies across its full operating temperature range (0°C to +70°C). The device maintains this range without clipping or distortion, making DG211CJ suitable for legacy ±15V instrumentation and military systems.

Does the DG211CJ require a third VL supply voltage?

No, the DG211CJ does not require a third VL supply. Unlike earlier-generation analog switches, DG211CJ integrates internal level-shifting circuitry that eliminates the need for an external VL rail. This simplifies power design and reduces component count - a confirmed feature highlighted in the datasheet's Features section and Typical Operating Circuit diagram.

What is the guaranteed switching timing behavior of the DG211CJ?

The DG211CJ guarantees break-before-make switching, with maximum turn-on time of 1000ns and maximum turn-off time of 500ns under standard test conditions (V_S = 2V, R_L = 1kΩ, C_L = 35pF). These values are explicitly listed in the DG211-specific Electrical Characteristics table and ensure reliable channel isolation during multiplexing in DG211CJ-based systems.

How does the DG211CJ behave when power supplies are disconnected while analog signals remain present?

The DG211CJ is nonlatching under such conditions: it will not conduct destructively or enter undefined states when V+ and V− are removed while analog signals are still applied to S or D pins. This behavior is guaranteed per the General Description and Absolute Maximum Ratings sections, and is a key reliability feature distinguishing DG211CJ in safety-critical applications.

What package type and temperature grade does the DG211CJ use?

The DG211CJ uses a 16-pin plastic DIP package and is rated for 0°C to +70°C operation. This is confirmed in the Ordering Information table, where "DG211CJ" maps directly to "16 Plastic DIP" and "0°C to +70°C". The package conforms to JEDEC MS-001 standards and is suitable for through-hole assembly in industrial and defense hardware.