Analog Devices Inc./Maxim Integrated DG211CSE+

Overview

DG211CSE+ from Maxim Integrated is a quad SPST normally closed analog switch IC designed for bidirectional signal routing in ±4.5V to ±18V dual-supply systems. It features guaranteed break-before-make switching, 175Ω max R_DS(ON) at ±15V, 1000ns max turn-on time, and operates across 0°C to +70°C - used in PBX systems, test equipment, and military radios where supply disconnection with live inputs must not cause latch-up.

For engineers reviewing the DG211CSE+ datasheet, DG211CSE+ pinout, DG211CSE+ application, or DG211CSE+ equivalent, key selection criteria include its no-VL-supply architecture, ±15V analog signal range, 5pF typical OFF-capacitance per channel, and SO-16 package compatibility with legacy DG211 designs requiring low-power CMOS analog switching without third-supply dependency.

Technical Context

The DG211CSE+ implements monolithic CMOS SPST switches with independent logic-controlled channels (IN1–IN4), each driving a source (S1–S4) and drain (D1–D4) pair. Its internal structure eliminates the VL bias rail required by earlier DG211 variants, simplifying power design while maintaining nonlatching behavior when V+ or V− is removed under live signal conditions.

Switching performance is characterized by 500ns max t_OFF and 1000ns max t_ON at ±15V/1kΩ/35pF load, with 70dB minimum OFF-isolation and 90dB crosstalk rejection at 100kHz - enabling high-fidelity analog multiplexing in communications and guidance systems where channel separation and signal integrity are critical.

Key Specifications

Pinout & Package

Package: 16-pin SOIC (SO-16), 7.5mm × 10.3mm body, 1.27mm pitch, JEDEC MS-012 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4617CSE+ and ADG1412BRUZ, the DG211CSE+ uniquely delivers VL-free ±15V operation in a drop-in SO-16 package for legacy military and telecom designs - offering proven latch-up immunity and direct replacement capability without supply or layout changes.

Availability

DG211CSE+ is available at Aetrix Electronics and suitable for PBX systems, test equipment, and military radio applications requiring stable component supply, long-term obsolescence management, and traceable sourcing for defense-grade production.

Supply support for DG211CSE+ 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 military applications.

The DG211CSE+ belongs to Maxim's legacy analog switch product line, engineered for robust bipolar-supply operation in mission-critical systems where supply sequencing faults and signal integrity under stress conditions are primary design constraints.

FAQ

What is the operating temperature range for DG211CSE+?

The DG211CSE+ is rated for 0°C to +70°C ambient operation, matching the "C" grade designation in its ordering code. This range covers commercial and industrial environments including PBX switching gear and benchtop test equipment where airflow and thermal management are moderate. The device maintains specified R_DS(ON), leakage, and switching times across this full range without derating.

Does DG211CSE+ require a VL supply pin?

No, DG211CSE+ does not require a VL supply. Unlike earlier DG211 versions from other manufacturers, Maxim's DG211CSE+ integrates internal level-shifting circuitry that eliminates the need for an external +5V VL bias rail. This reduces system complexity, saves board space, and removes a potential failure point - confirmed in the datasheet's Features section and Typical Operating Circuit diagram.

What is the maximum analog signal voltage supported by DG211CSE+?

DG211CSE+ supports analog signals from −15V to +15V relative to GND, as specified in the Electrical Characteristics table under "Analog Signal Range". This ±15V range is guaranteed with V+ = +15V and V− = −15V supplies. Operation at lower supply voltages (e.g., ±5V or ±12V) proportionally reduces the usable analog swing, per the R_DS(ON) vs. Supply graph on page 6.

How does DG211CSE+ prevent latch-up during power-down?

DG211CSE+ prevents latch-up using a proprietary CMOS process and internal protection architecture that ensures the device remains nonlatching even when V+ or V− is disconnected while analog signals remain present on S or D pins. This behavior is guaranteed in the General Description and Absolute Maximum Ratings sections, distinguishing it from older analog switches that could enter destructive latch-up states under such fault conditions.

Is DG211CSE+ pin-compatible with other DG211 package variants?

Yes, DG211CSE+ shares identical pinout and function mapping with DG211CJ (PDIP) and DG211CUE (TSSOP) - all use the same 16-pin configuration with IN1–IN4 on Pins 1/8/9/16, D1–D4 on Pins 2/7/10/15, S1–S4 on Pins 3/6/11/14, V− on Pin 4, GND on Pin 5, N.C. on Pin 12, and V+ on Pin 13. This allows direct substitution across SOIC, PDIP, and TSSOP packages without layout modification.