Analog Devices Inc./Maxim Integrated DG211CUE+T

Overview

DG211CUE+T 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 175Ω maximum R_DS(ON), 1000ns max turn-on time, 500ns max turn-off time, and guaranteed break-before-make switching. Used in test equipment and communications systems where high-voltage analog signal integrity and supply-disconnect robustness are required.

For engineers reviewing the DG211CUE+T datasheet, DG211CUE+T pinout, DG211CUE+T application, or DG211CUE+T equivalent, key selection criteria include its ±15V analog signal range, no-VL-supply architecture, nonlatching behavior under floating-input conditions, and TSSOP-16 package compatibility with high-density PCB layouts.

Technical Context

The DG211CUE+T implements four independent CMOS SPST switches with logic-controlled gate drivers that ensure break-before-make timing across all channels. Its internal structure eliminates the VL bias rail required by legacy DG211 variants, simplifying power design.

Each switch supports analog signals from –15V to +15V with leakage currents below ±5nA at ±14V off-state and channel capacitance of 5pF (off) / 16pF (on), enabling low-crosstalk performance (90dB) and minimal charge injection (typ. 20pC) in precision signal paths.

Key Specifications

Pinout & Package

Package: 16-pin TSSOP (4.4mm body width), RoHS-compliant, moisture sensitivity level 1.

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, the DG211CUE+T uniquely combines true bipolar ±18V supply operation, no-VL architecture, and guaranteed break-before-make-making it the only option for robust, drop-in replacement in legacy ±15V test and military systems requiring supply-float resilience.

Availability

DG211CUE+T is available at Aetrix Electronics and suitable for test equipment, communications systems, and military radio applications requiring stable component supply across extended temperature and voltage ranges.

Supply support for DG211CUE+T 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 precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.

The DG211CUE+T belongs to Maxim's high-voltage analog switch product line, engineered for reliable signal routing in systems where supply sequencing, latch-up immunity, and wide analog voltage swing are critical.

FAQ

What is the operating temperature range for DG211CUE+T?

The DG211CUE+T is rated for 0°C to +70°C ambient operation. This commercial-grade temperature specification aligns with its TSSOP-16 packaging and is validated per Maxim's DG211C ordering grade. The device maintains specified R_DS(ON), leakage, and switching times across this full range when biased at ±15V supplies. Derating curves for power dissipation are provided in the datasheet for board-level thermal design.

Does DG211CUE+T require a VL supply pin?

No, DG211CUE+T does not require a VL supply pin. Unlike earlier DG211 variants from the original manufacturer, Maxim's DG211CUE+T integrates internal level-shifting circuitry that eliminates the need for a third bias rail. All logic interface and switch control functions operate directly from the V+ and V− supplies, simplifying power architecture and reducing external component count.

What is the maximum analog signal voltage supported by DG211CUE+T?

DG211CUE+T supports analog signals from –15V to +15V relative to GND, as specified in its VANALOG parameter. This ±15V range is guaranteed under continuous operation with V+ = +15V and V− = –15V. The absolute maximum ratings allow up to ±18V supplies, but analog signal excursion remains limited to the supply rails - i.e., signals cannot exceed V+ or go below V− without risking damage or increased leakage.

Is DG211CUE+T pin-compatible with DG201ACUE?

No, DG211CUE+T is not pin-compatible with DG201ACUE. Although both are 16-pin TSSOP quad SPST switches, their pin functions differ: DG211CUE+T assigns IN1–IN4 to pins 1/8/9/16, whereas DG201ACUE places IN1–IN4 on pins 1/2/3/4. Additionally, DG211CUE+T has a N.C. on pin 12, while DG201ACUE uses pin 12 for S4. PCB layout must be redesigned to accommodate these differences.

What does "normally closed" mean for DG211CUE+T switch behavior?

"Normally closed" means each of the four SPST switches in DG211CUE+T conducts (ON) when its corresponding INx input is logic low (≤0.8V). Applying a logic high (≥2.4V) to INx opens (OFF) the switch. This default-closed state provides fail-safe signal continuity during power-up, reset, or controller fault conditions - a key requirement in disk drive head selection and military radio protection circuits.