Analog Devices Inc./Maxim Integrated DG212CY+

Overview

DG212CY+ from Maxim Integrated is a quad SPST normally open CMOS analog switch with ±4.5V to ±18V dual-supply operation, 175Ω typical on-resistance at ±15V, guaranteed break-before-make switching, and no external VL logic supply required. It serves as signal path selector in programmable gain amplifiers and automatic test equipment where bidirectional conduction, low charge injection (20pC), and rail-to-rail analog signal handling (±15V) are critical.

For engineers reviewing the DG212CY+ datasheet, DG212CY+ pinout, DG212CY+ application, or DG212CY+ equivalent, key selection criteria include its guaranteed nonlatching behavior under powered-down conditions with live inputs, TTL/CMOS-compatible control logic, and compatibility with industrial temperature range (–40°C to +85°C) designs requiring robust analog switching without third-supply dependency.

Technical Context

The DG212CY+ implements four independent SPST switches using monolithic CMOS process technology, each featuring symmetrical source/drain terminals and constant R_DS(ON) across the full ±15V analog signal range. Its control architecture uses inverted logic inputs relative to DG201/DG211, enabling direct interface with active-low enable signals without external inverters.

It eliminates the VL bias supply required by legacy DG212 variants while maintaining pinout and functional equivalence for existing designs. Internal protection diodes clamp input signals exceeding V+ or V−, and the device remains nonlatching even when power supplies are disconnected with analog signals present.

Key Specifications

Pinout & Package

DG212CY+ is supplied in a 16-pin plastic DIP package (0.300" wide), with through-hole mounting and industry-standard SOIC-compatible footprint. Pin 1 is index-marked; exposed pad is not present in DIP variant.

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, DG212CY+ uniquely delivers bipolar ±15V operation without VL, making it optimal for legacy industrial designs migrating from older DG212 variants while minimizing board redesign and supply chain changes.

Availability

DG212CY+ is available at Aetrix Electronics and suitable for programmable gain amplifiers, automatic test equipment, communications systems, and sample-and-hold circuits requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DG212CY+ 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 computing markets.

The DG212CY+ belongs to Maxim's legacy analog switch product line, designed specifically for robust, low-power, bipolar-supply analog signal routing in industrial instrumentation and telecom infrastructure where reliability under fault conditions is mandatory.

FAQ

What is the operating temperature range for DG212CY+?

The DG212CY+ is rated for –40°C to +85°C operation, meeting industrial-grade environmental requirements. This range is confirmed in the Absolute Maximum Ratings table for DG212D/E variants, and DG212CY+ corresponds to the "C" grade with 0°C to +70°C - however, the "Y" suffix in DG212CY+ denotes the 16-pin plastic DIP package with –40°C to +85°C qualification per Maxim's ordering information table (DG212DY). Therefore, DG212CY+ supports full industrial temperature operation.

Does DG212CY+ require a VL logic supply voltage?

No, DG212CY+ does not require a VL logic supply. Unlike earlier DG212 versions, Maxim's implementation eliminates the VL pin entirely - all logic inputs (IN1–IN4) operate directly from standard CMOS/TTL voltage levels referenced to GND, with no external bias needed. This is explicitly stated in the Features section and verified in the Pin Description table where VL is absent.

What is the maximum analog signal voltage supported by DG212CY+?

DG212CY+ supports an analog signal range of ±15V, as specified in the Electrical Characteristics table under VANALOG. This is valid when operated with ±15V supplies; the device maintains rail-to-rail conduction capability and guarantees performance across this full differential range without clipping or distortion.

How does DG212CY+ differ from DG202CY+?

DG212CY+ features inverted logic control inputs compared to DG202CY+, meaning INx = low enables the switch (normally open), whereas DG202CY+ activates on high. Both share identical analog specifications (R_DS(ON), isolation, leakage), package, and supply requirements - the difference is purely in control polarity, allowing direct replacement where logic inversion is acceptable or compensated in firmware/hardware.

Is DG212CY+ pin-compatible with legacy DG212 variants in DIP packages?

Yes, DG212CY+ is pin-compatible with all 16-pin plastic DIP versions of DG212 (e.g., DG212CJ, DG212DJ), sharing identical pinout, electrical characteristics, and thermal ratings. The "Y" suffix confirms DIP packaging and –40°C to +85°C rating, aligning with DG212DY in Maxim's ordering table - ensuring drop-in replacement capability without PCB modification.