Analog Devices Inc./Maxim Integrated DG411CY+

Overview

DG411CY+ from Maxim Integrated is a quad, normally closed (NC), single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in bipolar or single-supply systems. It features 35Ω max on-resistance, <5nA off-leakage at +85°C, 10pC max charge injection, rail-to-rail analog signal handling (±15V), and TTL/CMOS logic compatibility - enabling use in sample-and-hold circuits and battery-operated test equipment.

For engineers reviewing the DG411CY+ datasheet, DG411CY+ pinout, DG411CY+ application, or DG411CY+ equivalent, key selection criteria include guaranteed on-resistance flatness (Δ4Ω), low inter-channel R_DS(ON) mismatch (3Ω max), ESD tolerance (2000V min), and operation across ±4.5V to ±20V or +10V to +30V supplies.

Technical Context

The DG411CY+ implements four independent NC SPST switches fabricated in a 44V silicon-gate process, supporting bidirectional conduction with matched channel characteristics. Its architecture guarantees monotonic on-resistance over the full analog signal range and maintains low leakage across temperature without requiring external biasing.

Switch control uses standard TTL/CMOS-compatible inputs referenced to VL (typically +5V), while analog paths operate independently across V+ and V− rails. The device exhibits break-before-make timing only in DG413 variants - DG411CY+ has no break-before-make behavior, as confirmed by truth table and functional diagrams.

Key Specifications

Pinout & Package

DG411CY+ is supplied in a 16-pin narrow SOIC package (package code S16-1), with 1.27mm pitch, 7.5mm × 10.3mm body, and gull-wing leads. Pin 1 is located at the top-left corner adjacent to the index mark.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG411BRZ and TS5A23157DCUR, DG411CY+ uniquely combines high-voltage bipolar operation, guaranteed on-resistance matching and flatness, and industry-leading 10pC charge injection - making it the only option among the three qualified for precision ±15V sample-and-hold and military-grade test equipment.

Availability

DG411CY+ is available at Aetrix Electronics and suitable for sample-and-hold circuits, communication systems, and test equipment requiring stable component supply, long-term manufacturability, and guaranteed parametric performance across temperature.

Supply support for DG411CY+ 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 DG411CY+ belongs to Maxim's legacy precision analog switch family, engineered for high-voltage, low-distortion signal routing in instrumentation, defense, and telecom infrastructure where reliability and parameter guarantees are non-negotiable.

FAQ

What is the logic configuration of DG411CY+?

DG411CY+ is a normally closed (NC) quad SPST analog switch: each switch conducts when its corresponding IN pin is logic low (≤0.8V), and opens when IN is logic high (≥2.4V). This differs from DG412CY+ (NO) and DG413CY+ (dual NC/dual NO). The NC behavior ensures default signal continuity in fault or power-loss conditions, which is essential in safety-critical analog paths.

Does DG411CY+ support single-supply operation?

Yes, DG411CY+ operates from a single +10V to +30V supply - connect V− to ground and set VL = +5V for TTL compatibility. In this mode, analog signals swing from 0V to V+, maintaining rail-to-rail capability. Note that on-resistance increases slightly versus bipolar operation, and leakage remains <5nA at +85°C, as verified in the single-supply electrical characteristics table.

What is the maximum analog signal range for DG411CY+?

The maximum analog signal range for DG411CY+ is from V− to V+, supporting ±15V (i.e., −15V to +15V) with bipolar supplies or 0V to +15V with single +15V supply. Absolute maximum ratings permit up to ±20V or +30V total supply, but signal range remains bounded by the rails - exceeding V+ or V− risks forward-biasing internal protection diodes, as noted in the Absolute Maximum Ratings section.

How does DG411CY+ handle ESD and overvoltage events?

DG411CY+ meets 2000V minimum HBM ESD per Method 3015.7 and includes internal diode clamps on all analog pins (S, D, IN). For overvoltage protection beyond absolute maximums, external series diodes on V+ and V− are recommended - reducing analog range by ~1V but preserving R_DS(ON) and leakage specs. Power sequencing (V+ first, then VL/V−) is required to avoid latch-up.

Is DG411CY+ pin-compatible with older DG411 variants?

Yes, DG411CY+ is a plug-in upgrade for industry-standard DG411 devices in the same 16-pin narrow SOIC package (S16-1), with identical pinout, logic behavior, and supply requirements. Key improvements - including 3Ω max R_DS(ON) matching, Δ4Ω flatness, and <5nA off-leakage at +85°C - are fully backward compatible and require no PCB or firmware changes.