Analog Devices Inc./Maxim Integrated DG211CY+

Overview

DG211CY+ from Maxim Integrated is a normally closed, quad SPST CMOS analog switch designed for bidirectional signal routing in ±4.5V to ±18V dual-supply systems. It features 175Ω typical R_DS(ON), 1000ns max turn-on time, 500ns max turn-off time, and guaranteed break-before-make switching-enabling reliable signal path control in test equipment and communications systems.

For engineers reviewing the DG211CY+ datasheet, DG211CY+ pinout, DG211CY+ application, or DG211CY+ equivalent, key selection criteria include analog signal range (±15V), low OFF-leakage (±5nA), no VL supply requirement, and compatibility with TTL/CMOS logic levels across industrial temperature range.

Technical Context

The DG211CY+ implements monolithic CMOS architecture with integrated level-shifting circuitry that eliminates the need for a third VL supply-unlike legacy DG211 variants. Its four independent SPST switches operate with true bidirectional analog conduction and are internally protected against latch-up when power supplies are disconnected while input signals remain active.

Switching behavior is governed by standard TTL/CMOS-compatible digital inputs driving on-chip driver stages; each channel exhibits matched R_DS(ON) tracking over voltage and temperature, with <16pF channel ON-capacitance ensuring minimal signal distortion at audio and low-MHz frequencies.

Key Specifications

Pinout & Package

Package: 16-pin SOIC (Small Outline Integrated Circuit), body width 3.9mm, JEDEC MS-012 compliant, RoHS-compliant lead finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4617ESE+ and ADG1414BRUZ, the DG211CY+ uniquely delivers ±15V analog signal handling, no-VL simplicity, and direct TTL/CMOS compatibility in a 16-pin SOIC-making it optimal for retrofitting legacy ±15V test and military platforms without redesigning logic interfaces or supply architecture.

Availability

DG211CY+ is available at Aetrix Electronics and suitable for test equipment, military radios, communications systems, and Winchester disk drives requiring stable component supply with long-term industrial temperature support (0°C to +70°C).

Supply support for DG211CY+ 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 automotive markets.

The DG211CY+ belongs to Maxim's precision analog switch product line, engineered specifically for robust, high-voltage signal routing in mission-critical instrumentation and defense electronics where reliability under fault conditions is mandatory.

FAQ

What is the maximum analog signal voltage range supported by the DG211CY+?

The DG211CY+ 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 the full operating temperature range. The device remains functional within ±4.5V to ±18V supply rails, but signal swing is constrained by the actual V+ and V− applied-so ±15V supplies yield ±15V analog capability. DG211CY+ does not support rail-to-rail beyond its supply rails.

Does the DG211CY+ require a separate VL logic supply voltage?

No, the DG211CY+ does not require a VL supply. Unlike earlier DG211 versions from other manufacturers, Maxim's DG211CY+ integrates internal level-shifting circuitry that accepts standard TTL/CMOS logic levels (0V/3.3V/5V) directly on IN1–IN4 pins while operating from ±4.5V to ±18V analog supplies. This eliminates the need for a third voltage rail and simplifies system power architecture.

What is the guaranteed switching speed performance of the DG211CY+?

The DG211CY+ has a maximum turn-on time (t_ON) of 1000ns and a maximum turn-off time (t_OFF) of 500ns, measured under standard conditions (V+ = +15V, V− = −15V, R_L = 1kΩ, C_L = 35pF). These values are production-guaranteed limits-not typicals-and ensure deterministic timing for applications such as automated test sequencing and real-time signal routing.

Is the DG211CY+ pin-compatible with the original DG211 from other vendors?

No, the DG211CY+ is not pin-compatible with non-Maxim DG211 variants. While both share the same 16-pin SOIC footprint and basic function, Maxim's DG211CY+ repurposes Pin 12 as N.C. (no connection), whereas some legacy versions use it for VL. Additionally, internal logic thresholds and supply architecture differ-requiring verification of control voltage compatibility and absence of VL dependency before substitution.

What package type and temperature grade does the DG211CY+ use?

The DG211CY+ is packaged in a 16-pin SOIC (Small Outline Integrated Circuit) with standard MS-012 outline, and is rated for the commercial temperature range of 0°C to +70°C. The "Y" suffix in DG211CY+ denotes this grade, and the "+" indicates tape-and-reel packaging with lead (Pb)-free, RoHS-compliant finish per Maxim's standard ordering nomenclature.