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Vishay Siliconix DG405DY-T1
- Part No.:
- DG405DY-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG405DY-T1.pdf
- Description:
- IC SWITCH DPST-NOX2 45OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,046
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Product details
Overview
DG405DY-T1 from Vishay Siliconix is a dual SPDT CMOS analog switch IC designed for precision signal routing in low-power, high-speed applications. It features 30 Ω typical on-resistance, ±15 V analog signal range, 75 ns turn-on time, and operates from ±15 V supplies with TTL/CMOS-compatible control logic - ideal for stereo audio source selection and battery-powered test equipment.
For engineers reviewing the DG405DY-T1 datasheet, DG405DY-T1 pinout, DG405DY-T1 application, or DG405DY-T1 equivalent, key selection criteria include guaranteed break-before-make timing, ultra-low 40 pA channel-on leakage, single- or dual-supply operation, and SOIC-16 packaging suitable for space-constrained industrial and portable designs.
Technical Context
The DG405DY-T1 implements two independent SPDT analog switches with break-before-make switching action guaranteed by Vishay's high-voltage silicon-gate process. Each switch conducts bidirectionally with flat on-resistance over the full ±15 V analog range and includes epitaxial latchup protection.
It accepts logic-level inputs referenced to VL (2.4 V min high, 0.8 V max low) and supports separate analog (V+, V−) and logic (VL) supply rails. No internal level-shifting circuitry is required - control signals directly drive the gate of each switch pair.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full-rail audio, sensor, and instrumentation signals without clipping |
| On-Resistance (RDS(on)) | 30 Ω typ. - ensures minimal signal attenuation and gain error in precision signal paths |
| Turn-On Time (tON) | 75 ns typ. - enables fast multiplexing in data acquisition and communication systems |
| Channel-On Leakage (ID(on)) | 40 pA typ. - preserves accuracy in high-impedance sample-and-hold and peak-detect circuits |
| Supply Voltage Range (V+ to V−) | 44 V max - allows operation up to ±22 V, supporting wide dynamic range industrial interfaces |
| Logic Compatibility | TTL/CMOS - simplifies interface with microcontrollers, FPGAs, and legacy digital logic without level shifters |
| Power Dissipation | 0.35 µW typ. - enables multi-channel integration in battery-powered portable instruments |
Pinout & Package
Package: 16-pin narrow-body SOIC (JEDEC MS-012), 3.9 mm × 9.9 mm footprint, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Switch Terminals (S1–S4, D1–D4) | Bidirectional analog I/O pins for two independent SPDT switches; no polarity constraints |
| 9, 10 | Control Inputs (IN1, IN2) | Active-high logic inputs driving respective SPDT switch pairs; TTL/CMOS compatible |
| 11, 12 | Power Supplies (V−, GND) | Negative analog rail and system ground reference; critical for analog signal integrity |
| 13 | Logic Supply (VL) | Independent 5 V logic rail - decouples digital noise from analog path |
| 14, 15 | Power Supplies (V+, VL) | Positive analog rail (V+) and redundant VL connection - ensures stable gate bias |
| 16 | No Connect (NC) | Internally unused; must be left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed timing prevents momentary short-circuit between analog sources during switching |
| Flat on-resistance vs. voltage | ΔRDS(on) ≤ 3 Ω over ±15 V range - maintains linearity in audio and measurement applications |
| Ultra-low charge injection (60 pC) | Minimizes voltage glitch in sample-and-hold and switched-capacitor filter nodes |
| Off-isolation rejection (72 dB @ 1 MHz) | Prevents crosstalk between active and inactive channels in multi-source systems |
| Latchup immunity | Epitaxial substrate eliminates risk of destructive latchup under transient overvoltage conditions |
Applications
| Audio Source Selection | Stereo Channel Routing |
|---|---|
Use Scenario: Selecting between two stereo input sources (e.g., CD player vs. streaming DAC) in a consumer AV receiver. IC Role / Device Role / Timing Role: Dual SPDT switch routing left/right analog signals with simultaneous channel coordination. Use Value: Maintains matched on-resistance and capacitance across both channels to preserve stereo imaging and phase coherence. | Use Scenario: Dynamically assigning left/right output paths to different amplifier stages in a multi-zone audio system. IC Role / Device Role / Timing Role: Independent SPDT control per channel enables asymmetric routing (e.g., left → Zone A, right → Zone B). Use Value: 75 ns switching ensures zero audible click/pop during zone transitions under real-time DSP control. |
| Portable Test Instrumentation | Dual-Slope ADC Front-End |
Use Scenario: Multiplexing sensor inputs (thermocouple, RTD, strain gauge) into a shared precision ADC in handheld DMMs. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating high-impedance sensors from ADC input during sampling. Use Value: 40 pA ID(on) prevents measurement drift in µV-level thermocouple readings over extended battery life. | Use Scenario: Configuring integrator capacitor selection and reset paths in a dual-slope integrating ADC for energy metering. IC Role / Device Role / Timing Role: DG405DY-T1 implements slope-select and integrate/reset functions via coordinated IN1/IN2 control. Use Value: Guaranteed break-before-make prevents capacitor shorting, ensuring accurate integration cycle timing and metrology-grade linearity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4675ESE+ | Single 4-channel SPST; 4.5 Ω RDS(on); 3.3 V/5 V only; no ±V operation | Lower on-resistance but limited to unipolar supplies - unsuitable for ±15 V audio or industrial signal chains | Select when ultra-low on-resistance is critical and supply is strictly 3.3 V/5 V with no bipolar requirement |
| ADG1414BRUZ | Quad SPST; 1.8 Ω RDS(on); ±15 V rated; 16-lead TSSOP; higher power consumption (25 µW) | Superior on-resistance and matching, but lacks break-before-make guarantee and requires larger PCB area | Select for high-precision data acquisition where on-resistance matching outweighs timing safety and power budget |
Compared with MAX4675ESE+ and ADG1414BRUZ, the DG405DY-T1 uniquely balances ±15 V analog range, guaranteed break-before-make, and sub-µW quiescent power - making it optimal for battery-powered, bipolar-signal routing where reliability and efficiency are co-prioritized.
Availability
DG405DY-T1 is available at Aetrix Electronics and suitable for audio routing, portable instrumentation, and dual-slope ADC front-ends requiring stable component supply across industrial, medical, and consumer electronics programs.
Supply support for DG405DY-T1 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 components and analog ICs, with expertise in high-voltage, high-reliability silicon-gate processes.
The DG405DY-T1 belongs to the DG401 series of low-power, high-speed CMOS analog switches - engineered for precision signal routing in portable, battery-operated, and military-grade systems demanding robustness and low power.
FAQ
What is the maximum analog signal voltage supported by the DG405DY-T1?
The DG405DY-T1 supports an analog signal range of ±15 V, with absolute maximum ratings allowing V+ to V− up to 44 V. Signals exceeding V+ or V− are clamped by internal diodes, and forward diode current must be limited to 30 mA continuous or 100 mA pulsed (1 ms, 10% duty). This makes DG405DY-T1 suitable for industrial sensor interfaces and audio line-level routing without external protection.
Does the DG405DY-T1 require separate logic and analog supplies?
Yes, the DG405DY-T1 requires three independent supply connections: V+ and V− for the analog path, and VL (typically +5 V) for the logic interface. The VL pin powers internal level translation circuitry, enabling TTL/CMOS-compatible control while maintaining full ±15 V analog swing. This separation minimizes digital noise coupling into sensitive analog signal paths in DG405DY-T1 implementations.
Is break-before-make timing guaranteed for the DG405DY-T1?
Yes, break-before-make switching is guaranteed for the DG405DY-T1 due to its proprietary high-voltage silicon-gate process and internal design. This prevents momentary short-circuiting between analog sources during state transitions - a critical feature confirmed in the functional block diagram and truth table for DG405DY-T1, especially in dual-slope integrator and audio switching applications.
What is the typical on-resistance flatness across the analog range for DG405DY-T1?
The DG405DY-T1 exhibits ΔRDS(on) ≤ 3 Ω over the full ±15 V analog range at room temperature, with a typical RDS(on) of 30 Ω. This flatness ensures consistent gain and linearity in precision applications like sample-and-hold circuits and audio signal paths, where variation in on-resistance would introduce harmonic distortion or measurement error in DG405DY-T1-based designs.
Can the DG405DY-T1 operate from a single supply?
Yes, the DG405DY-T1 supports single-supply operation: V− can be tied to GND while V+ supplies the positive rail (e.g., +12 V or +15 V), and VL remains at +5 V. In this configuration, the analog signal range becomes 0 V to V+ − 3 V (e.g., 0 V to +12 V), preserving TTL/CMOS compatibility and low leakage. This flexibility is explicitly documented in the DG405DY-T1 datasheet for portable and cost-sensitive applications.
DG405DY-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- DPST - NO
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 45Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 13V ~ 36V
- Voltage - Supply, Dual (V±):
- ±7V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 60pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG405DY-T1 FAQ
1.How can I place an order for DG405DY-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG405DY-T1 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 DG405DY-T1 reliable?
The price and inventory of DG405DY-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG405DY-T1 is usually 5 days.
3.What payment methods are accepted for DG405DY-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG405DY-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG405DY-T1?
DG405DY-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG405DY-T1 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 DG405DY-T1?
For technical support, including DG405DY-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG405DY-T1 requirements.
6.How does Aetrix verify that DG405DY-T1 is sourced from the original manufacturer or authorized distributors?
All DG405DY-T1 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 DG405DY-T1 meets industry standards.
7.What is the process for return or replacement of DG405DY-T1?
All DG405DY-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG405DY-T1, 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 DG405DY-T1 part is unused and in its original packaging.
Return procedure for DG405DY-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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