Analog Devices Inc./Maxim Integrated DG212CSE

Overview

DG212CSE from Maxim Integrated is a quad SPST CMOS analog switch with normally open configuration, designed for bidirectional signal routing in ±4.5V to ±18V dual-supply systems. It features 175Ω typical on-resistance at ±15V, <5pF off-capacitance per channel, and guaranteed break-before-make switching. Used in programmable gain amplifiers and automatic test equipment where rail-to-rail analog signal integrity and low charge injection (20pC) are critical.

For engineers reviewing the DG212CSE datasheet, DG212CSE pinout, DG212CSE application, or DG212CSE equivalent, key selection criteria include its no-VL-supply architecture, -40°C to +85°C extended temperature variants, compatibility with TTL/CMOS logic, and absence of latch-up under supply-disconnect conditions with live inputs.

Technical Context

The DG212CSE implements four independent SPST switches using monolithic CMOS process technology, with inverted control inputs relative to DG201/DG211. Each switch provides symmetrical conduction-no polarity dependence-and maintains constant R_DS(ON) across the full ±15V analog signal range.

Its internal architecture eliminates the need for a separate logic supply (VL), simplifying system power design while preserving input compatibility with standard 0V/2.4V TTL and 0V/5V CMOS logic thresholds. Switching is controlled by four dedicated digital inputs (IN1–IN4), each driving one switch pair (S/D).

Key Specifications

Pinout & Package

Package: 16-pin SOIC (SO), 0.150" wide, RoHS-compliant (lead-free option available as DG212CSE+). Pin pitch: 1.27mm. Body dimensions: 9.9mm × 3.9mm × 1.75mm (L×W×H).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4617ESE+ and ADG1412BRUZ, the DG212CSE uniquely delivers quad SPST functionality with ±18V operation, no VL requirement, and proven nonlatching behavior-making it optimal for industrial test and telecom infrastructure where supply flexibility and robustness outweigh ultra-low on-resistance.

Availability

DG212CSE is available at Aetrix Electronics and suitable for automatic test equipment, programmable gain amplifiers, communications systems, and analog multiplexers requiring stable component supply across extended temperature and dual-supply environments.

Supply support for DG212CSE 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 DG212CSE belongs to Maxim's precision analog switch product line, engineered for robust signal routing in harsh supply environments-including supply disconnect scenarios-without latch-up or signal corruption.

FAQ

What is the operating temperature range for DG212CSE?

The DG212CSE is rated for 0°C to +70°C ambient operation. This commercial-grade temperature range is validated per Maxim's datasheet specifications and applies to all electrical parameters unless otherwise noted. For extended-range alternatives, consider DG212DY (–40°C to +85°C) in the same SO package. The DG212CSE itself does not support operation outside 0°C to +70°C.

Does DG212CSE require a VL logic supply voltage?

No, the DG212CSE does not require a VL supply. Unlike earlier analog switches such as the original DG212, Maxim's DG212CSE integrates logic-level translation internally, accepting standard TTL/CMOS input voltages (0V/2.4V) directly from V+ and GND references. This eliminates the need for a third supply rail and simplifies system power design.

Is DG212CSE pin-compatible with DG202CSE?

Yes, DG212CSE and DG202CSE share identical pinout, package (16-pin SO), and terminal functions. The only functional difference is inverted logic polarity on the IN1–IN4 inputs: DG212CSE activates switches with logic low, whereas DG202CSE uses logic high. No PCB changes are needed for substitution-only firmware or logic-level inversion may be required.

What is the maximum analog signal voltage supported by DG212CSE?

The DG212CSE supports analog signals from V− to V+, with absolute maximum ratings allowing V+ to V− differentials up to 44V. At ±15V supplies, the guaranteed analog signal range is ±15V. Operation beyond ±15V is possible within absolute maximum limits but may increase R_DS(ON) and leakage; consult the R_DS(ON) vs. supply curve in the datasheet for derating guidance.

Can DG212CSE be used in bidirectional signal paths?

Yes, DG212CSE supports fully bidirectional analog signal flow between S and D terminals. Its CMOS construction imposes no inherent directionality-the switch conducts equally well from source to drain or drain to source. This enables flexible use in transmission-line switching, audio routing, and sample/hold architectures where signal direction may vary dynamically.