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Vishay Siliconix DG411AK
- Part No.:
- DG411AK
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-CDIP (0.300", 7.62mm)
- Datasheet:
-
DG411AK.pdf
- Description:
- IC SW SPST-NCX4 35OHM 16CERDIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,632
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Product details
Overview
DG411AK from Vishay Siliconix is a precision monolithic quad SPST CMOS analog switch designed for high-speed, low-error signal routing in dual-supply systems. It features 25 Ω on-resistance, 110 ns turn-on time, ±15 V analog signal range, and operates across –55 °C to +125 °C in 16-pin CerDIP packaging - ideal for military-grade test equipment and ruggedized data acquisition.
For engineers reviewing the DG411AK datasheet, DG411AK pinout, DG411AK application, or DG411AK equivalent, key selection criteria include guaranteed rDS(on) ≤ 45 Ω over full temperature range, break-before-make timing compliance, TTL/CMOS logic compatibility, and 44 V max supply rating with latchup-immune silicon gate process.
Technical Context
The DG411AK implements four independent bidirectional SPST switches using high-voltage silicon gate CMOS technology with epitaxial isolation to prevent latchup. Each switch conducts equally in both directions when ON and blocks signals up to supply rails when OFF.
It supports dual-supply operation (±15 V typical) and single-supply mode (up to 44 V), with logic control referenced to VL (typically 5 V). The DG411AK uses active-low enable logic: logic "0" (≤ 0.8 V) turns switches ON; logic "1" (≥ 2.4 V) turns them OFF - distinct from DG412's inverted logic and DG413's mixed NO/NC configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full-rail bipolar signal switching without clipping in precision instrumentation. |
| rDS(on) Max | 45 Ω at ±15 V, –55 °C to +125 °C - ensures minimal gain error and THD degradation in 12-bit+ data paths. |
| tON / tOFF | 240 ns / 160 ns max over full temp - enables sub-microsecond multiplexing in automated test systems. |
| Charge Injection | 5 pC - limits voltage step errors in sample-and-hold and switched-capacitor circuits. |
| Off Isolation (OIRR) | 68 dB at 1 MHz - suppresses crosstalk between adjacent channels in multi-channel DAQ front-ends. |
| Supply Voltage Range | V+ to V– = 44 V max - allows operation from ±22 V supplies or 0–44 V unipolar rails. |
| Logic Supply (VL) | (GND –0.3 V) to (V+) +0.3 V - enables direct interfacing with 3.3 V or 5 V microcontrollers without level shifters. |
Pinout & Package
Package: 16-pin Ceramic Dual-In-Line Package (CerDIP), hermetically sealed, rated for –55 °C to +125 °C operation and suitable for high-reliability military/aerospace applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control inputs | Active-low logic: INx = 0 V → corresponding switch ON; compatible with TTL/CMOS thresholds. |
| S1–S4 | Switch source terminals | Bidirectional analog I/O; connect to signal sources or sensor outputs. |
| D1–D4 | Switch drain terminals | Bidirectional analog I/O; connect to ADC inputs, amplifier stages, or multiplexer outputs. |
| V+ | Positive analog supply | Accepts up to +44 V; must be ≥ |V–| for proper switch biasing and rail-to-rail conduction. |
| V– | Negative analog supply | Accepts down to –44 V; establishes lower analog rail and defines switch OFF-state blocking range. |
| GND | Analog ground reference | Common return for V– and analog signal paths; separate from digital ground unless system design permits sharing. |
| VL | Logic supply reference | Defines logic threshold; typically tied to +5 V or +3.3 V; must remain within (V– –0.3 V) to (V+ +0.3 V). |
Key Features
| Feature | Design Value |
|---|---|
| Precision analog switching | Guaranteed rDS(on) ≤ 45 Ω over –55 °C to +125 °C ensures stable gain and linearity in calibrated systems. |
| Break-before-make timing | Prevents momentary shorting during channel transitions - critical for avoiding signal glitches in multiplexed sensor arrays. |
| Latchup immunity | Epitaxial layer isolation eliminates destructive latchup under transient overvoltage or ESD events. |
| Ultra-low power dissipation | 0.35 W typical - enables dense packaging in battery-powered or thermally constrained portable test gear. |
| Wide dynamic range | ±15 V analog swing with < 0.01% THD supports 16-bit resolution in precision data acquisition front-ends. |
Applications
| Automated Test Equipment (ATE) | Precision Data Acquisition Systems |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs (thermocouples, strain gauges) into a shared high-resolution ADC channel. IC Role / Device Role / Timing Role: Quad SPST analog switch providing channel selection with sub-250 ns settling and < 5 pC charge injection. Use Value: Eliminates external relays or discrete FET arrays, reducing board area and enabling 10 kSPS scanning without hold-step errors. |
Use Scenario: Routing calibrated reference voltages and sensor signals to differential input stages of a 24-bit sigma-delta ADC. IC Role / Device Role / Timing Role: Precision analog switch ensuring matched on-resistance (< 1 Ω mismatch) and low thermal EMF for offset stability. Use Value: Maintains DC accuracy across temperature extremes (–55 °C to +125 °C) without recalibration in industrial monitoring nodes. |
| Military Avionics Signal Conditioning | Battery-Powered Portable Instrumentation |
Use Scenario: Isolating and routing flight control sensor signals (gyros, accelerometers) in redundant signal chains. IC Role / Device Role / Timing Role: Hermetic CerDIP-packaged quad switch delivering 68 dB off-isolation and 44 V supply tolerance for MIL-STD-704 compliance. Use Value: Meets DO-254 design assurance requirements with no latchup risk under power transients or radiation-induced faults. |
Use Scenario: Low-power multiplexing in handheld multimeters or portable oscilloscope front-ends powered by Li-ion batteries. IC Role / Device Role / Timing Role: Ultra-low quiescent current (≤ 5 µA per supply rail) and 0.35 W total dissipation extend battery life > 20 hours. Use Value: Enables continuous sampling without thermal drift or self-heating artifacts in Class I handheld metrology tools. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617CPE+ | Higher rDS(on) (100 Ω typ), narrower temp range (–40 °C to +85 °C), SOIC-16 only | Not qualified for extended temperature or hermetic packaging; unsuitable for aerospace/military use | Select only for commercial-grade cost-sensitive designs where ±15 V signal range and 125 °C operation are not required. |
| ADG411BRZ | Lower leakage (0.1 nA max), same rDS(on) spec, but limited to –40 °C to +85 °C and plastic DIP/SOIC | Lacks MIL-PRF-38535 qualification and CerDIP packaging; not approved for high-reliability programs | Prefer for medical or industrial DAQ where long-term reliability matters more than extreme temperature or radiation hardness. |
Compared with MAX4617CPE+ and ADG411BRZ, the DG411AK delivers unique value in extended temperature operation, hermetic sealing, and guaranteed performance across military-grade supply and signal margins - making it irreplaceable in certified avionics and space-qualified subsystems.
Availability
DG411AK is available at Aetrix Electronics and suitable for automated test equipment, precision data acquisition, and military avionics requiring stable component supply with traceable lot history and extended temperature certification.
Supply support for DG411AK 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 leader in discrete semiconductors and passive components, specializing in high-reliability analog interface devices for demanding industrial, military, and aerospace applications.
The DG411AK belongs to the DG411/412/413 family of precision monolithic analog switches, engineered specifically for low-distortion, high-speed signal routing in mission-critical measurement and control systems.
FAQ
What is the maximum allowable supply voltage for DG411AK?
The DG411AK supports a maximum V+ to V– differential of 44 V. This means it can operate with ±22 V supplies, +44 V/0 V, or any combination where the absolute difference does not exceed 44 V. Exceeding this rating risks permanent damage to the internal protection diodes and switch elements. Always observe derating curves above +75 °C ambient per the datasheet's power dissipation table.
Does DG411AK support single-supply operation?
Yes, DG411AK supports single-supply operation from 5 V to 44 V. In this mode, V+ is connected to VL (logic supply), and V– is tied to ground. The analog signal range becomes 0 V to V+, and the input logic thresholds scale accordingly - verified in the Input Switching Threshold vs. Supply Voltage curve on page 4-5 of the datasheet.
What is the logic polarity of DG411AK control inputs?
DG411AK uses active-low logic: applying ≤ 0.8 V to IN1–IN4 turns the corresponding switch ON, while ≥ 2.4 V turns it OFF. This is confirmed in the Truth Table on page 4-1 and distinguishes DG411AK from DG412AK (active-high) and DG413AK (mixed NO/NC configuration). No external inverters are needed for microcontroller GPIO interfacing.
Is DG411AK pin-compatible with DG411DJ or DG411DY?
No - DG411AK uses a 16-pin CerDIP package with different lead frame geometry and thermal characteristics than the plastic DIP (DG411DJ) or narrow SOIC (DG411DY). While pin functions match electrically, mechanical fit, solder reflow profile, and thermal resistance differ significantly. PCB layout must be redesigned for CerDIP mounting and hermetic sealing requirements.
What is the guaranteed rDS(on) specification for DG411AK over temperature?
DG411AK guarantees rDS(on) ≤ 45 Ω across its full operating temperature range of –55 °C to +125 °C when tested at V+ = 15 V, V– = –15 V, IS = –10 mA, and VD = 8.5 V. This is specified in the "Min/Max" column under "Full" temperature condition on page 4-3 of the datasheet - a key differentiator versus commercial-grade alternatives.
DG411AK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 5V ~ 44V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 9pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-CERDIP
DG411AK FAQ
1.How can I place an order for DG411AK through Aetrix?
Please submit a Request for Quotation (RFQ) for DG411AK on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DG411AK reliable?
The price and inventory of DG411AK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG411AK is usually 5 days.
3.What payment methods are accepted for DG411AK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG411AK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG411AK?
DG411AK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG411AK order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DG411AK?
For technical support, including DG411AK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG411AK requirements.
6.How does Aetrix verify that DG411AK is sourced from the original manufacturer or authorized distributors?
All DG411AK products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DG411AK meets industry standards.
7.What is the process for return or replacement of DG411AK?
All DG411AK units undergo pre-shipment inspection (PSI). If there is an issue with DG411AK, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DG411AK part is unused and in its original packaging.
Return procedure for DG411AK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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