Analog Devices Inc./Maxim Integrated DG202DY+

Overview

DG202DY+ from Maxim Integrated is a quad SPST CMOS analog switch with normally open configuration, designed for bidirectional signal routing in ±4.5V to ±18V dual-supply systems. It features guaranteed break-before-make switching, 175Ω typical on-resistance at ±15V, <5nA off-leakage current, and TTL/CMOS logic compatibility - enabling use in programmable gain amplifiers and automatic test equipment.

For engineers reviewing the DG202DY+ datasheet, DG202DY+ pinout, DG202DY+ application, or DG202DY+ equivalent, this page delivers verified electrical parameters, SO-16 package mapping, real-world timing behavior (480ns turn-on), leakage performance across temperature, and validated alternatives for analog multiplexer designs requiring latch-up immunity and no VL supply.

Technical Context

The DG202DY+ implements monolithic CMOS architecture with inverted logic control inputs relative to DG201/DG211, eliminating the need for a separate VL logic supply while maintaining full compatibility with legacy control interfaces. Its substrate-connected V+ pin and internal clamping diodes enable robust fault tolerance during power-down with live analog signals.

Each of the four independent SPST switches supports rail-to-rail analog signal handling from –15V to +15V, exhibits constant R_DS(ON) over the full signal range, and adds zero offset to passed signals. Charge injection is specified at 20pC, supporting precision sample-and-hold applications without significant settling error.

Key Specifications

Pinout & Package

Package: 16-pin SOIC (Small Outline Integrated Circuit), JEDEC MS-012, body width 3.9mm, lead pitch 1.27mm, RoHS-compliant, tape-and-reel packaging.

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 DG202DY+ uniquely balances wide dual-supply operation, zero VL dependency, and industrial temperature range - making it optimal for legacy-compatible, high-voltage analog routing where layout simplicity and fault resilience are prioritized over minimum R_DS(ON).

Availability

DG202DY+ is available at Aetrix Electronics and suitable for programmable gain amplifiers, analog multiplexers, automatic test equipment, communications systems, and sample-and-hold circuits requiring stable component supply across extended temperature and dual-supply environments.

Supply support for DG202DY+ 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, communications, and computing applications, with emphasis on reliability, integration, and power efficiency.

The DG202DY+ belongs to Maxim's precision analog switch product line, engineered specifically for fault-tolerant, wide-supply-range signal routing in test, measurement, and instrumentation systems where latch-up immunity and supply simplicity are mandatory.

FAQ

What is the maximum analog signal voltage range supported by the DG202DY+?

The DG202DY+ supports an analog signal range of –15V to +15V when operated with ±15V supplies. This rail-to-rail capability is guaranteed across its full –40°C to +85°C operating temperature range and enables direct interfacing with industrial sensors, DAC outputs, and op-amp stages without level-shifting. The device maintains this range under all specified supply conditions from ±4.5V to ±18V.

Does the DG202DY+ require a separate VL logic supply voltage?

No, the DG202DY+ does not require a VL supply. Unlike earlier DG212 variants, Maxim eliminated the need for a third logic supply while preserving full TTL/CMOS compatibility. Logic inputs accept 0V to V+ (or GND to V+) levels directly, simplifying power architecture and reducing board space. This design choice is explicitly confirmed in the datasheet's Features section and Ordering Information table.

How does the DG202DY+ prevent latch-up when power supplies are disconnected?

The DG202DY+ incorporates process-level design features that guarantee nonlatching behavior even when V+ and V– are removed while analog signals remain present at S or D pins. This is achieved through controlled substrate biasing (V+ connected to substrate) and internal current limiting (<25mA) on all analog terminals. The datasheet explicitly states this guarantee in the General Description and Absolute Maximum Ratings sections.

What is the typical on-resistance of the DG202DY+ and how does it vary with supply voltage?

The DG202DY+ has a typical drain-source on-resistance (R_DS(ON)) of 175Ω at ±15V supplies, with a guaranteed maximum of 200Ω. As supply voltage decreases, R_DS(ON) increases - e.g., ±10V yields ~250Ω, and ±5V results in ~380Ω. This relationship is documented in the "R_DS(ON) vs. Power Supplies" graph on page 6 of the datasheet and impacts gain accuracy in precision resistor-switching applications.

Is the DG202DY+ pin-compatible with other members of the DG202/DG212 family?

Yes, the DG202DY+ shares identical pinout and footprint with all SO-16 variants in the DG202/DG212 family, including DG202CSE, DG202ADY, and DG212DY. Pin functions (IN1–IN4, D1–D4, S1–S4, V+, V–, GND, N.C.) are fully consistent across these variants. However, note that DG202 and DG212 differ in logic polarity: DG202DY+ uses inverted control (low = ON), whereas DG212 uses non-inverted control.