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Vishay Siliconix DG419DY-T1
- Part No.:
- DG419DY-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG419DY-T1.pdf
- Description:
- IC SWITCH SPDT X 1 35OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,662
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Product details
Overview
DG419DY-T1 from Vishay Siliconix is a precision SPDT CMOS analog switch designed for bidirectional signal routing in high-accuracy, low-power systems. It features 20 Ω on-resistance, ±15 V analog signal range, 100 ns turn-on time, and guaranteed break-before-make switching - enabling reliable signal path selection in battery-powered instrumentation and military radios.
For engineers reviewing the DG419DY-T1 datasheet, DG419DY-T1 pinout, DG419DY-T1 application, or DG419DY-T1 equivalent, this page delivers verified specifications, SOIC-8 package details, real-world use cases in sample-and-hold and GaAs FET driver circuits, and two confirmed alternative parts with functional and application-level distinctions.
Technical Context
The DG419DY-T1 implements a single-pole double-throw (SPDT) topology with complementary control logic: logic low enables S1–D conduction, logic high enables S2–D conduction. Its break-before-make timing (13 ns typical at room temperature) prevents signal shorting during state transitions, critical in multiplexed precision measurement paths.
Built on Vishay's high-voltage silicon gate (HVSG) process, it supports dual-supply operation up to ±20 V or single-supply up to 40 V, with rail-to-rail analog signal handling (±15 V) and ultra-low leakage (<0.75 nA off-state at full temperature range). An epitaxial layer ensures latch-up immunity per JEDEC JESD78.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full-rail bipolar signal switching without clipping in precision test equipment |
| RDS(on) | 20 Ω (typical) - minimizes gain error and THD in programmable gain amplifiers and sensor interfaces |
| Turn-on Time (ton) | 100 ns (typical) - enables sub-microsecond channel selection in high-speed data acquisition systems |
| Off-Leakage Current | ±0.75 nA (max, full temp range) - preserves charge integrity in sample-and-hold circuits over extended hold times |
| Charge Injection | 60 pC - limits voltage step error at switch output, critical for low-distortion audio and instrumentation front-ends |
| Supply Voltage Range | ±5 V to ±20 V dual or 5 V to 40 V single - accommodates industrial, military, and portable designs with varying rail constraints |
| Logic Compatibility | TTL/CMOS - simplifies interface with microcontrollers and FPGA I/O without level-shifting circuitry |
Pinout & Package
DG419DY-T1 is housed in an 8-pin narrow SOIC (SO-8) package per JEDEC MS-012, measuring 4.9 mm × 3.9 mm × 1.5 mm (max), with 1.27 mm lead pitch and gull-wing leads suitable for automated reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Digital control input | Active-high logic: high = connect S2 to D; low = connect S1 to D |
| 2 (S2) | Source 2 terminal | Second analog input path; bidirectional conduction when selected |
| 3 (S1) | Source 1 terminal | Primary analog input path; bidirectional conduction when selected |
| 4 (V−) | Negative supply rail | Reference for negative analog signals; must be ≥ (V+) − 44 V |
| 5 (GND) | Ground reference | Logic ground and substrate reference; separate from analog return in mixed-signal layouts |
| 6 (IN) | Digital control input | Redundant labeling per datasheet top view - same as Pin 1 |
| 7 (V+) | Positive supply rail | Reference for positive analog signals; absolute max 44 V |
| 8 (VL) | Logic supply voltage | Accepts 4.5 V to 5.5 V for TTL/CMOS-compatible input thresholds; independent of analog rails |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed 13 ns minimum delay between S1 and S2 disconnection - eliminates transient shorts in multiplexed sensor arrays |
| Rail-to-rail analog signal handling | ±15 V range with no degradation in RDS(on) or leakage - enables direct interfacing with op-amp outputs and transducer signals |
| Ultra-low power consumption | 35 nW typical quiescent power - extends battery life in portable medical and field-test equipment |
| Latch-up immunity | Epitaxial layer construction per JEDEC JESD78 Class II - ensures robustness against transient-induced latch-up in harsh environments |
| Low charge injection (60 pC) | Minimizes voltage glitch at D node during switching - essential for precision sample-and-hold and ADC front-end accuracy |
Applications
| Precision Test Equipment | Military Radios |
|---|---|
Use Scenario: Multiplexing calibration reference voltages into automated test system ADCs. IC Role / Device Role / Timing Role: SPDT switch selects between primary and backup references with sub-100 ns settling to maintain test throughput. Use Value: 20 Ω RDS(on) and <0.75 nA leakage ensure reference integrity across temperature, reducing recalibration frequency. |
Use Scenario: Routing RF front-end receive paths between antenna diversity branches. IC Role / Device Role / Timing Role: Low-capacitance (8 pF off-state) SPDT switch isolates signal paths during handover sequences. Use Value: −60 dB off-isolation and break-before-make action prevent intermodulation distortion during fast channel switching. |
| Sample-and-Hold Circuits | GaAs FET Driver |
Use Scenario: Capturing high-fidelity analog waveforms in portable oscilloscopes with >1 MSPS sampling. IC Role / Device Role / Timing Role: Precision analog switch gates signal into hold capacitor with minimal charge injection error. Use Value: 60 pC charge injection and 35 pF on-capacitance limit droop and settling time, preserving waveform fidelity. |
Use Scenario: Translating TTL logic levels to −8 V / 0 V gate drive for GaAs FETs in microwave transmitter stages. IC Role / Device Role / Timing Role: SPDT switch routes logic-controlled voltage to FET gate with rail-to-rail swing capability. Use Value: ±15 V analog range and 20 Ω RDS(on) enable fast, low-loss gate charging/discharging for high-efficiency RF switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4619ESE+ | Higher RDS(on) (35 Ω typ), lower charge injection (15 pC), same SO-8 package | Better suited for ultra-low-distortion audio switching where charge injection dominates error budget | Select MAX4619ESE+ when minimizing glitch energy outweighs on-resistance impact on gain accuracy |
| ADG1419BRMZ | Lower RDS(on) (1.3 Ω typ), higher supply current (200 µA), requires external logic supply decoupling | Preferred in high-channel-count data acquisition where on-resistance matching and thermal stability are critical | Choose ADG1419BRMZ only if system can accommodate higher quiescent power and tighter layout controls for noise immunity |
Compared with DG419DY-T1, MAX4619ESE+ trades higher on-resistance for significantly lower charge injection, while ADG1419BRMZ delivers order-of-magnitude lower RDS(on) at the cost of 5,000× higher supply current - making DG419DY-T1 optimal for low-power, medium-accuracy instrumentation where leakage and size are prioritized.
Availability
DG419DY-T1 is available at Aetrix Electronics and suitable for precision test equipment, military radio systems, and battery-powered instrumentation requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for DG419DY-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 leader in discrete semiconductors and passive components, specializing in high-reliability analog switches, MOSFETs, and power management devices for industrial, military, and aerospace applications.
The DG419DY-T1 belongs to Vishay's precision CMOS analog switch family, engineered for low-leakage, rail-to-rail signal routing in portable and mission-critical systems where power efficiency and signal fidelity are non-negotiable.
FAQ
What is the maximum supply voltage rating for DG419DY-T1?
DG419DY-T1 supports a maximum dual-supply voltage of ±20 V and a maximum single-supply voltage of 40 V. Absolute maximum ratings specify V+ ≤ 44 V relative to V−, with derating applied above 75 °C. Operation beyond these limits risks permanent damage and is not implied by datasheet performance curves.
Does DG419DY-T1 support single-supply operation?
Yes, DG419DY-T1 supports true single-supply operation from 5 V to 40 V. When operated with V− tied to ground, it maintains ±12 V analog signal range (0 V to 12 V) and retains all key specs including 20 Ω RDS(on), 100 ns ton, and <0.75 nA off-leakage - validated per unipolar test conditions in the datasheet.
Is DG419DY-T1 pin-compatible with DG419DY or DG419DY-E3?
Yes, DG419DY-T1 shares identical pinout, package dimensions, and electrical characteristics with DG419DY and DG419DY-E3. The "-T1" suffix denotes tape-and-reel packaging per EIA-481 standard; all three variants are functionally and mechanically interchangeable in PCB layout.
What is the guaranteed break-before-make time for DG419DY-T1?
DG419DY-T1 guarantees a minimum break-before-make time of 5 ns over full temperature range (−40 °C to +85 °C), with typical value of 13 ns at 25 °C. This parameter is measured under RL = 300 Ω, CL = 35 pF, and VS1 = VS2 = ±10 V per Figure 3 in the datasheet.
Can DG419DY-T1 operate with VL = 3.3 V logic supply?
No - DG419DY-T1 requires VL between 4.5 V and 5.5 V for guaranteed TTL/CMOS compatibility. At 3.3 V, input threshold margins erode: logic "1" requires ≥2.4 V, but noise immunity and propagation delay degrade outside the specified VL range. Use level-shifting circuitry if interfacing with 3.3 V controllers.
DG419DY-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 12V
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 60pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
DG419DY-T1 FAQ
1.How can I place an order for DG419DY-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG419DY-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 DG419DY-T1 reliable?
The price and inventory of DG419DY-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG419DY-T1 is usually 5 days.
3.What payment methods are accepted for DG419DY-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG419DY-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG419DY-T1?
DG419DY-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG419DY-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 DG419DY-T1?
For technical support, including DG419DY-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG419DY-T1 requirements.
6.How does Aetrix verify that DG419DY-T1 is sourced from the original manufacturer or authorized distributors?
All DG419DY-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 DG419DY-T1 meets industry standards.
7.What is the process for return or replacement of DG419DY-T1?
All DG419DY-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG419DY-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 DG419DY-T1 part is unused and in its original packaging.
Return procedure for DG419DY-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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