Vishay Siliconix DG200AAA

Overview

DG200AAA from Vishay Siliconix is a monolithic dual SPST CMOS analog switch in a 10-pin metal can package, rated for –55 °C to +125 °C operation, with ±15 V analog signal range, 45 Ω typical on-resistance, and TTL/CMOS-compatible digital inputs. It enables bidirectional analog signal routing in precision servo control and programmable gain amplifier circuits.

For engineers reviewing the DG200AAA datasheet, DG200AAA pinout, DG200AAA application, or DG200AAA equivalent, key selection criteria include its 44 V maximum supply range, 75 dB off-isolation at 1 MHz, 90 dB crosstalk rejection, 440 ns turn-on time, and metal-can hermetic packaging for high-reliability military environments.

Technical Context

The DG200AAA implements two independent, bidirectional single-pole single-throw switches fabricated on Vishay's PLUS-40 CMOS process with epitaxial latchup protection. Each channel conducts equally in both directions when ON and blocks up to 30 V peak-to-peak when OFF, with no intrinsic offset voltage introduced in the ON state.

Logic control uses standard TTL/CMOS thresholds (0.8 V low, 2.4 V high), and input voltage tolerance extends to (V–) –2 V and (V+) +2 V. Supply rails support V+ to V– differential up to 44 V, with GND-to-V– rated at 25 V - enabling flexible bipolar rail configurations in analog signal path switching.

Key Specifications

Pinout & Package

Package: 10-pin metal can (hermetically sealed, side-braze compatible), with V+ substrate tied to case for EMI shielding and thermal conduction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DG200AAK and ADG201A, the DG200AAA uniquely combines hermetic 10-pin metal-can packaging, full –55 °C to +125 °C qualification, and MIL-STD-883 screening - making it the sole option for mission-critical analog switching in aerospace, defense, and downhole oilfield electronics.

Availability

DG200AAA is available at Aetrix Electronics and suitable for servo control interfaces, programmable gain amplifiers, ruggedized audio routing, and programmable filter banks requiring stable component supply across extended temperature and high-reliability environments.

Supply support for DG200AAA 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

Vishay Siliconix is a global semiconductor manufacturer specializing in discrete MOSFETs, analog switches, and high-reliability power and signal components.

The DG200AAA belongs to Vishay's MIL-qualified analog switch product line, engineered specifically for high-stability analog signal routing in defense electronics, avionics, and space-qualified systems where hermeticity and extended temperature operation are mandatory.

FAQ

What is the maximum allowable voltage difference between V+ and V– for the DG200AAA?

The DG200AAA supports a maximum V+ to V– differential of 44 V, as specified in the absolute maximum ratings table. This allows operation with wide supply rails such as +22 V / –22 V or +30 V / –14 V configurations. Exceeding this rating risks permanent damage. The DG200AAA must always be operated within this limit to ensure reliable performance and longevity.

Does the DG200AAA require external pull-up or pull-down resistors on its IN1 and IN2 pins?

No, the DG200AAA does not require external pull-up or pull-down resistors on IN1 or IN2. Its digital inputs are TTL/CMOS-compatible with guaranteed thresholds of 0.8 V (low) and 2.4 V (high), and internal clamping diodes protect against overvoltage. The DG200AAA functions correctly when driven directly by standard logic outputs without additional biasing components.

Can the DG200AAA switch signals beyond the V+ and V– supply rails?

No, the DG200AAA cannot reliably switch analog signals outside the V+ to V– range. The analog signal range is guaranteed only from V– to V+, i.e., ±15 V under standard test conditions. Signals exceeding these rails may forward-bias internal protection diodes, causing leakage or distortion. For the DG200AAA, maintaining analog inputs within the supply rails is essential for specified performance.

What is the thermal derating behavior of the DG200AAA above 75 °C?

The DG200AAA has a thermal derating factor of 6 mW/°C above 75 °C, as stated in the datasheet notes. Its maximum power dissipation is 450 mW at ≤75 °C; above that, allowable power decreases linearly. At 125 °C, maximum dissipation drops to 450 mW – (50 °C × 6 mW/°C) = 150 mW. This derating must be applied in thermal design for the DG200AAA in high-temperature applications.

Is the V+ Substrate pin electrically connected to the metal can housing?

Yes, the V+ Substrate pin (Pin 6) is internally bonded to the metal can housing of the DG200AAA. This connection serves dual purposes: it establishes the positive supply reference and provides electromagnetic shielding and thermal conduction. The case must be connected to V+ in circuit layout to ensure proper operation and EMI suppression for the DG200AAA.