Analog Devices Inc./Maxim Integrated DG417CJ

Overview

DG417CJ from Maxim Integrated is a precision, normally-closed (NC), single-pole/single-throw (SPST) analog switch optimized for rail-to-rail signal routing in ±4.5V to ±20V or +10V to +30V supply systems. It delivers 35Ω max on-resistance, <5nA off-leakage at +85°C, and 10pC max charge injection - enabling high-fidelity sample-and-hold and audio signal switching in battery-operated and test equipment.

For engineers reviewing the DG417CJ datasheet, DG417CJ pinout, DG417CJ application, or DG417CJ equivalent, key selection criteria include guaranteed on-resistance matching (3Ω max), low tON/tOFF (<175ns/<145ns), ESD tolerance (2000V min), bipolar/single-supply flexibility, and compatibility with TTL/CMOS logic levels.

Technical Context

The DG417CJ uses a 44V silicon-gate CMOS process to achieve rail-to-rail analog conduction and bidirectional signal handling. Its normally-closed architecture ensures continuity when control logic is inactive, and internal clamping diodes protect against overvoltage transients beyond V+ or V−.

Operation requires separate analog (V+, V−, GND) and logic (VL) supplies: VL = +5V enables TTL compatibility, while VL tied to V+ supports CMOS-level inputs. Switching is controlled by a single IN pin, with logic thresholds defined at VINL ≤ 0.8V and VINH ≥ 2.4V.

Key Specifications

Pinout & Package

Package: 8-pin plastic DIP (dual in-line package), 0°C to +70°C operating temperature range.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1419BRUZ and TS5A23157DCUR, DG417CJ uniquely combines normally closed operation, bipolar supply support, sub-10pC charge injection, and guaranteed on-resistance matching - making it irreplaceable in precision analog hold, military radio signal routing, and fail-safe sensor interface designs.

Availability

DG417CJ is available at Aetrix Electronics and suitable for sample-and-hold circuits, test equipment signal routing, and battery-operated systems requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for DG417CJ 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.

DG417CJ belongs to Maxim's precision analog switch product line, engineered for low distortion, low leakage, and robust operation in demanding instrumentation, military, and telecom infrastructure applications.

FAQ

What is the operating temperature range for DG417CJ?

The DG417CJ is rated for 0°C to +70°C operation, as indicated by the "C" suffix in its ordering code. This commercial-grade temperature range is validated per Maxim's datasheet specifications and applies to all electrical parameters unless otherwise noted. The DG417CJ is not rated for extended industrial (−40°C to +85°C) or military (−55°C to +125°C) ranges - those require DG417DJ or DG417AK variants respectively.

Does DG417CJ support single-supply operation?

Yes, DG417CJ 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+. The device retains all key specs including 35Ω max R_DS(ON), <175ns t_ON, and <5nA off-leakage at +85°C. However, on-resistance flatness (4Ω max) and channel matching (3Ω max) are guaranteed only under bipolar supply conditions.

How does the normally closed (NC) functionality of DG417CJ work?

DG417CJ conducts between pins 1 (S) and 8 (D) when the IN pin (pin 6) is logic low (≤0.8V). When IN goes high (≥2.4V), the switch opens. This default-closed behavior ensures signal continuity during power-up, MCU reset, or logic failure - a critical safety feature in sample-and-hold hold-capacitor paths and battery backup circuits. DG417CJ does not require pull-down resistors to maintain NC state.

What is the maximum analog signal voltage range supported by DG417CJ?

DG417CJ supports analog signals from V− to V+, with absolute maximum ratings of V+ ≤ 44V above V−. For standard ±15V operation, the full signal range is −15V to +15V. With +12V/0V single supply, the range is 0V to +12V. Exceeding V+ or V− at S or D pins triggers internal clamp diodes - limiting usable range to ~1V within the rails unless external protection (e.g., series diodes) is added per Maxim's Application Information.

Is DG417CJ pin-compatible with older DG417 variants?

Yes, DG417CJ is a plug-in upgrade for legacy DG417 devices in 8-pin DIP packages. Pinout, footprint, and logic interface are identical. Key improvements - including 3Ω max R_DS(ON) match, 4Ω max R_FLAT(ON), <5nA off-leakage at +85°C, and 10pC max charge injection - are backward compatible and require no PCB or firmware changes. Electrical validation per the 1996 datasheet confirms full functional equivalence with enhanced parametric guarantees.