Analog Devices Inc./Maxim Integrated DG411C/D

Overview

DG411C/D from Maxim Integrated is a quad, normally closed (NC), single-pole/single-throw (SPST) analog switch die designed for precision signal routing in high-reliability 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 military radios and guidance & control systems where low distortion and thermal stability are critical.

For engineers reviewing the DG411C/D datasheet, DG411C/D pinout, DG411C/D application, or DG411C/D equivalent, key selection considerations include its NC configuration, die form factor requiring custom mounting, guaranteed on-resistance flatness (Δ4Ω), low leakage over temperature, and compatibility with ±4.5V to ±20V bipolar or +10V to +30V single-supply operation.

Technical Context

The DG411C/D implements four independent SPST switches with normally closed topology, each using silicon-gate process technology to achieve matched on-resistance (≤3Ω between channels) and flat on-resistance (Δ4Ω max) across the full analog signal range. Its internal architecture supports bidirectional conduction and rail-to-rail signal swing without degradation.

Logic control is referenced to VL (typically +5V), with inputs compatible with TTL and CMOS voltage thresholds. The device requires external biasing of V+, V−, GND, and VL pins, and operates with no internal level-shifting - making it suitable for systems where supply sequencing and overvoltage protection must be externally managed.

Key Specifications

Pinout & Package

DG411C/D is supplied as a bare die (unpackaged silicon) intended for hybrid module integration or custom substrate mounting. No standardized surface-mount or through-hole package is assigned; users must implement mechanical support, thermal management, and wire bonding per factory-provided topography data.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DG411C/D, MAX4676C/D offers improved on-resistance but trades off charge injection performance, while ADG411BN delivers identical core switching specs in a manufacturable PDIP package - making DG411C/D optimal for space-constrained, thermally demanding, or radiation-hardened hybrid modules.

Availability

DG411C/D is available at Aetrix Electronics and suitable for military radios, guidance & control systems, sample-and-hold circuits, and heads-up displays requiring stable component supply across extended temperature and reliability requirements.

Supply support for DG411C/D 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 and mixed-signal ICs for industrial, automotive, communications, and defense applications.

The DG411C/D belongs to Maxim's legacy precision analog switch family, engineered specifically for high-reliability, wide-supply-range signal routing in aerospace, military, and test equipment where die-level integration and thermal resilience are mandatory.

FAQ

What is the operating temperature range for DG411C/D?

DG411C/D is specified for 0°C to +70°C operation. This commercial-grade temperature range reflects its intended use in controlled-environment systems such as ground-based test equipment and non-extreme avionics subsystems. Unlike packaged variants (e.g., DG411EUE), the die form does not include extended temperature qualification, and thermal management must be implemented externally via substrate design and bonding strategy.

Does DG411C/D support single-supply operation?

Yes, DG411C/D supports single-supply operation from +10V to +30V. In this mode, V− must be connected to ground (0V), and the analog signal range becomes 0V to V+ minus headroom. The device maintains rail-to-rail capability relative to the applied supply rails, and all key parameters - including on-resistance flatness and leakage - remain valid per the single-supply electrical characteristics table in the datasheet.

How is logic level compatibility achieved in DG411C/D?

DG411C/D achieves logic level compatibility through the VL pin, which sets the reference for digital inputs. When VL = +5V, the device accepts standard TTL logic levels (0.8V low, 2.4V high). When VL is tied to V+, it supports CMOS-compatible thresholds. This dual-mode flexibility allows seamless integration with diverse host controllers without external level-shifting circuitry - a key advantage in mixed-voltage military and industrial systems.

What are the absolute maximum ratings for DG411C/D supply voltages?

The absolute maximum ratings for DG411C/D are V+ ≤ +44V and V− ≥ −44V, with the constraint that |V+ − V−| ≤ +44V. Exceeding these limits risks permanent damage. Signals on S or D terminals must not exceed V+ or V− by more than 2V due to internal clamping diodes. These ratings apply to the bare die and assume proper thermal and mechanical implementation per Maxim's die handling guidelines.

Is DG411C/D pin-compatible with other DG41x variants?

No - DG411C/D is a bare die and has no physical pinout. However, its functional pin mapping (IN1–IN4, S1–S4, D1–D4, V+, V−, GND, VL) matches the 16-pin DIP/SO/TSSOP packaged versions (e.g., DG411CJ, DG411CY), enabling direct schematic reuse. Die-level integration requires custom wire bonding layout, but electrical interface and timing behavior remain identical across all DG411 variants.