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Vishay Siliconix DG412DY
- Part No.:
- DG412DY
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG412DY.pdf
- Description:
- IC SWITCH SPST-NOX4 35OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,661
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Product details
Overview
DG412DY from Vishay Siliconix is a precision monolithic quad SPST analog switch with break-before-make action, designed for bidirectional signal routing in precision data acquisition and test equipment. It features 25 Ω on-resistance (rDS(on)), 110 ns turn-on time (tON), ±15 V analog signal range, and operates from dual supplies up to ±15 V or single supply up to 12 V - ideal for battery-powered instrumentation requiring low distortion and low power.
For engineers reviewing the DG412DY datasheet, DG412DY pinout, DG412DY application, or DG412DY equivalent, key selection criteria include its complementary logic control (vs. DG411), 16-pin narrow SOIC package, guaranteed 44 V supply rating, and verified performance across –40°C to +85°C industrial temperature range.
Technical Context
The DG412DY implements four independent CMOS transmission gates built on Vishay's high-voltage silicon gate process with epitaxial latchup protection. Each switch conducts equally in both directions when ON and blocks signals up to supply rails when OFF. Its control logic is inverted relative to DG411: logic "0" (≤0.8 V) enables conduction, while logic "1" (≥2.4 V) disables all switches.
It supports dual-supply (±15 V) and single-supply (up to 12 V) operation, with VL pin enabling TTL/CMOS-compatible logic interfacing. The device guarantees 68 dB off-isolation and 85 dB channel-to-channel crosstalk at 1 MHz, ensuring minimal signal coupling in multi-channel systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V (dual supply); 0–12 V (single supply) - supports full-rail input signals without clipping |
| rDS(on) | 25 Ω typical at ±15 V - ensures low insertion loss and minimal gain error in precision gain-setting paths |
| tON / tOFF | 110 ns / 100 ns at RL = 300 Ω, CL = 35 pF - enables fast multiplexing in high-throughput ADC sampling |
| Charge Injection | 5 pC - minimizes voltage step errors during switching in sample-and-hold and integrator circuits |
| Off-Isolation (OIRR) | 68 dB at 1 MHz - suppresses leakage between inactive channels in multi-signal routing |
| Crosstalk (XTALK) | 85 dB at 1 MHz - maintains signal integrity when adjacent switches handle different frequency bands |
| Supply Rating | 44 V max (V+ to V−) - provides robust overvoltage tolerance in industrial transducer interfaces |
Pinout & Package
Package: 16-pin narrow SOIC (width 3.9 mm), RoHS-compliant, rated for –40°C to +85°C operation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1) | Control Input 1 | Active-low enable for Switch 1 (S1–D1); logic "0" closes path |
| 2 (IN2) | Control Input 2 | Active-low enable for Switch 2 (S2–D2) |
| 3 (D1) | Drain 1 | Switch 1 output terminal; bidirectional with S1 when enabled |
| 4 (D2) | Drain 2 | Switch 2 output terminal; bidirectional with S2 when enabled |
| 5 (S1) | Source 1 | Switch 1 input terminal; connects to D1 when IN1 = low |
| 6 (S2) | Source 2 | Switch 2 input terminal; connects to D2 when IN2 = low |
| 7 (V−) | Negative Supply | Connects to negative rail (e.g., –15 V or GND in single-supply mode) |
| 8 (V+) | Positive Supply | Connects to positive rail (e.g., +15 V or +12 V) |
| 9 (GND) | Analog/Digital Ground | Common reference for V− and logic interface; must be low-impedance |
| 10 (VL) | Logic Supply | Accepts 3–5 V logic reference; decouples digital control from analog supplies |
| 11 (S4) | Source 4 | Switch 4 input terminal; connects to D4 when IN4 = low |
| 12 (S3) | Source 3 | Switch 3 input terminal; connects to D3 when IN3 = low |
| 13 (D4) | Drain 4 | Switch 4 output terminal; bidirectional with S4 when enabled |
| 14 (D3) | Drain 3 | Switch 3 output terminal; bidirectional with S3 when enabled |
| 15 (IN4) | Control Input 4 | Active-low enable for Switch 4 (S4–D4) |
| 16 (IN3) | Control Input 3 | Active-low enable for Switch 3 (S3–D3) |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guarantees no momentary short between channels during state transition - critical for avoiding signal glitches in multiplexed sensor arrays |
| Ultra-low charge injection (5 pC) | Reduces settling error in precision integrators and sample-and-hold circuits without requiring additional correction circuitry |
| 25 Ω rDS(on) flatness over signal range | Minimizes THD and gain nonlinearity in audio and instrumentation amplifier front-ends |
| 44 V supply rating (V+ to V−) | Enables direct interfacing with industrial ±24 V or 48 V signal chains without external level-shifting |
| TTL/CMOS-compatible VL pin | Allows seamless integration with 3.3 V or 5 V microcontrollers without logic-level translators |
Applications
| Automated Test Equipment (ATE) | Precision Data Acquisition |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs into a shared ADC channel under microcontroller control. IC Role / Device Role / Timing Role: Quad SPST analog switch providing isolated, low-distortion signal routing with break-before-make timing to prevent cross-talk during channel changes. Use Value: Enables 4:1 analog multiplexing with <110 ns switching and <5 pC charge injection - preserving DC accuracy and dynamic range in 16-bit systems. | Use Scenario: Selecting between calibration references and active sensor inputs in medical-grade patient monitoring front-ends. IC Role / Device Role / Timing Role: Precision analog switch isolating high-impedance reference sources from measurement paths during calibration cycles. Use Value: 68 dB off-isolation and ±15 V signal handling ensure reference integrity remains unaffected by adjacent channel activity. |
| Battery-Powered Instrumentation | Communication System Signal Routing |
Use Scenario: Power-gating unused analog signal paths in portable oscilloscopes and handheld multimeters to extend battery life. IC Role / Device Role / Timing Role: Low-power analog switch (0.35 W total dissipation) enabling selective activation of signal conditioning stages. Use Value: 0.35 W max power dissipation and 30 mA continuous current rating allow safe operation from coin-cell or Li-ion sources without thermal derating. | Use Scenario: Routing differential analog signals between RF front-end modules and baseband processors in cellular infrastructure test gear. IC Role / Device Role / Timing Role: Bidirectional analog switch supporting ±15 V signal swing and 85 dB crosstalk suppression in multi-band receiver calibration paths. Use Value: 85 dB crosstalk at 1 MHz prevents interference between LTE and 5G NR band signals sharing common PCB traces. |
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 |
|---|---|---|---|
| ADG412BRZ | 28 Ω rDS(on), 120 ns tON, same 16-pin SOIC package; requires VL = VDD for logic interface | Higher on-resistance increases gain error in precision gain networks; lacks guaranteed 44 V supply rating | Preferred where ADI ecosystem compatibility matters and ±15 V operation is not required |
| MAX4612ESE+ | 35 Ω rDS(on), 130 ns tON, 36 V max supply; includes enable pin for global switch control | Lower supply rating limits use in ±24 V industrial I/O; global EN pin simplifies firmware control | Chosen when centralized switch control is needed and 25 Ω on-resistance is not critical |
Compared with ADG412BRZ and MAX4612ESE+, the DG412DY delivers lower on-resistance (25 Ω vs. 28/35 Ω), faster switching (110 ns vs. 120/130 ns), and higher supply tolerance (44 V vs. 36/40 V), making it optimal for high-fidelity, wide-dynamic-range analog routing where signal integrity is prioritized over integrated enable functionality.
Availability
DG412DY is available at Aetrix Electronics and suitable for precision data acquisition, automated test equipment, and battery-powered instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG412DY 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 passive components, with emphasis on high-voltage and precision analog solutions.
The DG412DY belongs to the DG411/412/413 family - engineered for high-speed, low-error analog signal switching in test, measurement, and industrial control systems where rail-to-rail signal fidelity and robust supply tolerance are essential.
FAQ
What is the logic polarity of DG412DY compared to DG411?
The DG412DY uses active-low logic control: a logic "0" (≤0.8 V) turns the switch ON, while a logic "1" (≥2.4 V) turns it OFF. This is inverted relative to DG411, which is active-high. This difference is critical when replacing DG411 with DG412DY - firmware or hardware logic inversion must be implemented to maintain functional equivalence. The DG412DY datasheet explicitly confirms this behavior in its Truth Table section.
Can DG412DY operate from a single 12 V supply?
Yes, DG412DY supports single-supply operation from 5 V to 12 V. In this configuration, V+ is connected to the positive rail (e.g., +12 V), V− is tied to GND, and VL is set to the same voltage as the logic source (typically 5 V). The device maintains its ±12 V analog signal range and 25 Ω rDS(on) performance under these conditions, as verified in the "Single Supply Operation" section of the DG412DY datasheet.
What is the maximum continuous current rating per switch terminal of DG412DY?
The DG412DY has a maximum continuous current rating of 30 mA per terminal (S or D), with peak pulsed current up to 100 mA (1 ms, 10% duty cycle). Exceeding 30 mA continuously risks thermal overstress and parameter drift, especially at elevated ambient temperatures. This rating applies identically across all four switches and is specified in the Absolute Maximum Ratings table of the DG412DY datasheet.
Does DG412DY require external clamping diodes for overvoltage protection?
No, DG412DY includes internal ESD protection diodes that clamp signals exceeding V+ or V− rails. However, the datasheet specifies that forward diode current must be limited to the maximum ratings - i.e., external series resistance must be used if analog inputs may exceed supply rails by more than 0.3 V. This clamping behavior is documented in Note "a" of the Absolute Maximum Ratings section for DG412DY.
What is the guaranteed off-isolation performance of DG412DY at 1 MHz?
The DG412DY guarantees 68 dB off-isolation (OIRR) at 1 MHz, measured with RL = 50 Ω and CL = 5 pF. This value is production-tested and specified in the Electrical Characteristics table under "Off Isolation" for the D-suffix (–40°C to +85°C) version. It ensures minimal signal bleed-through between disabled switches in high-frequency multiplexing applications such as RF test instrumentation.
DG412DY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG412DY FAQ
1.How can I place an order for DG412DY through Aetrix?
Please submit a Request for Quotation (RFQ) for DG412DY 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 DG412DY reliable?
The price and inventory of DG412DY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG412DY is usually 5 days.
3.What payment methods are accepted for DG412DY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG412DY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG412DY?
DG412DY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG412DY 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 DG412DY?
For technical support, including DG412DY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG412DY requirements.
6.How does Aetrix verify that DG412DY is sourced from the original manufacturer or authorized distributors?
All DG412DY 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 DG412DY meets industry standards.
7.What is the process for return or replacement of DG412DY?
All DG412DY units undergo pre-shipment inspection (PSI). If there is an issue with DG412DY, 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 DG412DY part is unused and in its original packaging.
Return procedure for DG412DY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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