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Vishay Siliconix DG418DY-T1-E3
- Part No.:
- DG418DY-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG418DY-T1-E3.pdf
- Description:
- IC SWITCH SPST-NOX1 35OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,339
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Product details
Overview
DG418DY-T1-E3 from Vishay Siliconix is a precision single-pole, single-throw (SPST), normally-open (NO) CMOS analog switch designed for bidirectional signal routing in low-power, high-accuracy systems. It delivers 20 Ω on-resistance, 100 ns turn-on time, ±15 V analog signal range, and 35 nW ultra-low power dissipation-enabling use in battery-powered instrumentation and portable test equipment.
For engineers reviewing the DG418DY-T1-E3 datasheet, DG418DY-T1-E3 pinout, DG418DY-T1-E3 application, or DG418DY-T1-E3 equivalent, key selection considerations include its SOIC-8 narrow-body package, TTL/CMOS-compatible control logic, guaranteed break-before-make timing (shared with DG419 family), low charge injection (60 pC), and dual-supply operation up to ±20 V.
Technical Context
The DG418DY-T1-E3 implements a high-voltage silicon gate (HVSG) process to achieve robust ±15 V analog signal handling and 44 V absolute maximum supply rating. Its complementary control logic (active-high IN enables conduction) distinguishes it from the DG417 (active-low), enabling flexible interface design in mixed-logic systems.
Each channel conducts equally in both directions when on and blocks signals up to the full supply rail when off. An epitaxial layer prevents latch-up, and internal clamping diodes protect against overvoltage transients on S/D/IN pins-critical for precision measurement front-ends and sample-and-hold circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog signal range | ±15 V - supports full-rail bipolar signal switching without clipping in precision instrumentation |
| On-resistance (RDS(on)) | 20 Ω typ. - ensures minimal gain error and signal attenuation in voltage-controlled amplifier and multiplexer paths |
| Turn-on time (ton) | 100 ns typ. - enables fast channel selection in data acquisition systems sampling at ≥5 MHz |
| Charge injection | 60 pC - limits voltage glitch in sample-and-hold circuits, reducing settling time and calibration burden |
| Supply voltage max. | 44 V - allows safe operation with margin above ±20 V dual supplies or 40 V single supply rails |
| Off-leakage current | ±0.25 nA max. - preserves accuracy in high-impedance sensor interfaces and microamp-level current sources |
| Power dissipation | 35 nW - extends battery life in portable medical devices and handheld test gear |
Pinout & Package
Package: 8-pin narrow SOIC (JEDEC MS-012), 3.9 mm × 4.9 mm footprint, 1.27 mm pitch, 1.75 mm max height - compatible with standard automated PCB assembly and space-constrained layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S) | Source terminal | Bidirectional analog signal input/output node; connects to sensor, DAC, or ADC path |
| 2 (D) | Drain terminal | Bidirectional analog signal output/input node; routed to load, reference, or next stage |
| 3 (NC) | No-connect | Internally unconnected; must remain floating-no external connection permitted |
| 4 (V−) | Negative supply rail | Bias reference for negative analog swing; requires local decoupling to ground |
| 5 (GND) | Ground reference | Logic and substrate reference; separate from analog ground in mixed-signal designs |
| 6 (IN) | Digital control input | TTL/CMOS-compatible active-high enable (≥2.4 V = ON); inverted logic vs. DG417 |
| 7 (V+) | Positive supply rail | Bias reference for positive analog swing; supports up to +44 V absolute max |
| 8 (VL) | Logic supply voltage | Independent 5 V logic rail; isolates digital switching noise from analog signal path |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make guarantee | Shared architecture with DG419 ensures no signal shorting during state transitions-critical for multiplexer safety in fault-tolerant systems |
| Ultra-low leakage | ≤0.25 nA off-state current maintains integrity of picoamp-level biosensor and photodiode signals |
| High-voltage silicon gate (HVSG) process | Enables ±15 V analog range and 44 V supply rating while retaining CMOS logic compatibility and low power |
| Epitaxial latch-up protection | Prevents destructive parasitic SCR activation under transient overvoltage or ESD stress-qualified per JEDEC JESD22-A114 |
| Miniature SOIC-8 packaging | Reduces board area by >50% vs. DIP-8; supports high-density routing in portable diagnostic and aerospace avionics |
Applications
| Precision Test Equipment | Precision Instrumentation |
|---|---|
Use Scenario: Automated calibration of multimeters and oscilloscope front-ends using programmable reference routing. IC Role / Device Role / Timing Role: SPST analog switch selecting between internal calibration standards and DUT signal paths. Use Value: 20 Ω RDS(on) and 60 pC charge injection minimize measurement uncertainty and reduce post-switching settling time. | Use Scenario: Signal conditioning in portable gas chromatography analyzers requiring low-drift analog multiplexing. IC Role / Device Role / Timing Role: Channel selector routing thermocouple or pH electrode outputs to a shared ADC. Use Value: ±15 V analog range accommodates wide-output sensors; 0.25 nA leakage avoids baseline drift in high-Z electrochemical inputs. |
| Battery-Powered Systems | Sample-and-Hold Circuits |
Use Scenario: Power management in handheld ultrasound probes where analog beamforming paths are dynamically enabled. IC Role / Device Role / Timing Role: Low-power analog gate controlling signal path activation only during active acquisition windows. Use Value: 35 nW quiescent power extends battery runtime; SOIC-8 footprint minimizes PCB real estate in compact probe housings. | Use Scenario: High-fidelity data acquisition in seismic monitoring nodes capturing low-frequency analog waveforms. IC Role / Device Role / Timing Role: Precision hold capacitor charging switch with minimal charge kickback. Use Value: 60 pC charge injection limits hold-step error to <1 LSB in 16-bit systems; 100 ns ton supports ≥5 MSPS sampling rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4618ESE+ | Higher on-resistance (35 Ω), slower ton (150 ns), same SOIC-8 package and ±15 V range | Less suitable for high-speed multiplexing but offers better ESD rating (±4 kV HBM) | Select MAX4618ESE+ when system-level ESD robustness outweighs speed and on-resistance requirements |
| ADG1418BRUZ | Lower on-resistance (1.3 Ω), higher supply current (120 μA), wider temp range (−40°C to +125°C), TSSOP-16 package | Requires PCB redesign; better for high-precision industrial control where thermal stability is critical | Select ADG1418BRUZ when sub-ohm on-resistance and extended temperature operation justify layout change and cost premium |
Compared with MAX4618ESE+ and ADG1418BRUZ, DG418DY-T1-E3 provides optimal balance of speed, low power, and compact packaging for portable instrumentation-without demanding higher supply current or sacrificing SOIC-8 compatibility.
Availability
DG418DY-T1-E3 is available at Aetrix Electronics and suitable for precision test equipment, battery-powered instrumentation, and sample-and-hold circuits requiring stable component supply across production lifecycles.
Supply support for DG418DY-T1-E3 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 precision resistors for industrial, automotive, and aerospace applications.
The DG418DY-T1-E3 belongs to Vishay's DG417/DG418/DG419 precision analog switch family-engineered for low-leakage, low-distortion signal routing in portable, military-grade, and medical instrumentation where board space and power efficiency are critical.
FAQ
What is the logic polarity of the DG418DY-T1-E3 control input?
The DG418DY-T1-E3 features active-high logic: an IN pin voltage ≥2.4 V turns the switch ON (low RDS(on)), while ≤0.8 V turns it OFF. This complements the DG417's active-low logic, allowing matched pair usage in differential or redundant switching architectures without level-shifting circuitry. The DG418DY-T1-E3's logic threshold is referenced to VL (5 V), not V+ or GND.
Can DG418DY-T1-E3 operate from a single 12 V supply?
Yes, DG418DY-T1-E3 supports unipolar operation: V+ = 12 V, V− = 0 V, VL = 5 V. In this configuration, the analog signal range is 0 V to 12 V, RDS(on) increases to 40 Ω (typ.), and turn-on time is 110 ns (typ.). The device retains all core functionality-including low leakage and charge injection-making it viable for industrial PLC I/O modules and automotive body-control subsystems.
Does DG418DY-T1-E3 require external protection diodes for overvoltage on S/D pins?
No. DG418DY-T1-E3 integrates internal clamping diodes that limit S/D/IN pin voltages to (V− − 2 V) and (V+ + 2 V). However, forward diode current must be limited to ≤30 mA continuous or 100 mA pulsed (1 ms, 10% duty cycle). External series resistors are recommended if transient currents exceed these ratings-especially in ESD-prone environments like handheld medical devices.
What is the maximum allowable ambient temperature for continuous operation of DG418DY-T1-E3?
DG418DY-T1-E3 is rated for continuous operation from −40 °C to +85 °C (D suffix). Power dissipation must be derated linearly above 25 °C at 6 mW/°C for SOIC-8 packages. At 85 °C ambient, maximum allowed power is 400 mW − (60 °C × 6 mW/°C) = 364 mW-well above its typical 35 nW dissipation, confirming suitability for sealed industrial enclosures without forced cooling.
How does the DG418DY-T1-E3 handle signal voltages exceeding the V+/V− rails?
When S or D pin voltages exceed V+ or fall below V−, DG418DY-T1-E3's internal clamping diodes conduct, limiting the pin to (V+ + 0.3 V) or (V− − 0.3 V). This protects downstream circuitry but requires external current limiting (e.g., series resistor) to keep diode current within 30 mA continuous rating. This behavior is explicitly documented in Note (a) of the Vishay datasheet S10-1528-Rev. G for DG418DY-T1-E3.
DG418DY-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- 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
DG418DY-T1-E3 FAQ
1.How can I place an order for DG418DY-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG418DY-T1-E3 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 DG418DY-T1-E3 reliable?
The price and inventory of DG418DY-T1-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG418DY-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG418DY-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG418DY-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG418DY-T1-E3?
DG418DY-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG418DY-T1-E3 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 DG418DY-T1-E3?
For technical support, including DG418DY-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG418DY-T1-E3 requirements.
6.How does Aetrix verify that DG418DY-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG418DY-T1-E3 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 DG418DY-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG418DY-T1-E3?
All DG418DY-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG418DY-T1-E3, 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 DG418DY-T1-E3 part is unused and in its original packaging.
Return procedure for DG418DY-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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