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Vishay Siliconix DG2018DN-T1-E4
- Part No.:
- DG2018DN-T1-E4
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
DG2018DN-T1-E4.pdf
- Description:
- IC SWITCH DPDT X 2 8OHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,845
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Product details
Overview
DG2018DN-T1-E4 from Vishay Siliconix is a low-voltage dual DPDT analog switch IC operating from 1.8 V to 5.5 V supply, featuring 6 Ω on-resistance at 2.7 V, 180 MHz bandwidth, and QFN-16 (3 × 3 mm) package. It routes bidirectional analog/digital signals in portable audio/video systems with brake-before-make switching and ±50 mA continuous current handling.
For engineers reviewing the DG2018DN-T1-E4 datasheet, DG2018DN-T1-E4 pinout, DG2018DN-T1-E4 application, or DG2018DN-T1-E4 equivalent, key selection criteria include dual DPDT topology, 42 ns turn-on time at 3 V, 1.4 V logic-high threshold for IN1/IN2, guaranteed break-before-make timing, and low 1.46 pC charge injection - critical for precision signal routing in battery-powered instrumentation.
Technical Context
The DG2018DN-T1-E4 implements two independent SPDT switch pairs controlled by separate IN1/IN2 and IN3/IN4 inputs, each enabling NC/NO path selection with COM as common terminal. Its submicron CMOS process ensures symmetric conduction in both directions and latch-up immunity via epitaxial layer.
Each DPDT section guarantees break-before-make operation with ≤1 ns transition interval and supports rail-to-rail analog signal ranges (0 V to V+). The device operates with 0.5 V logic-low and 1.4 V logic-high thresholds at 3 V supply, and exhibits 9 pF input capacitance and 30 pF channel-on capacitance - optimized for high-fidelity signal integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interface with 1.8 V, 2.7 V, 3.3 V, and 5 V logic and analog rails |
| On-Resistance (RON) | 6 Ω at V+ = 2.7 V - minimizes voltage drop and power loss in signal paths carrying up to ±50 mA |
| Bandwidth | 180 MHz - supports high-speed video (e.g., VGA, SDTV), USB 1.1, and audio sampling up to 96 kHz without attenuation |
| Turn-On/Off Time | 42 ns / 16 ns at V+ = 3 V - enables fast multiplexing in real-time sensor or ADC/DAC channel switching |
| Charge Injection | −1.46 pC - reduces glitch-induced error in precision sample-and-hold or switched-capacitor circuits |
| Off-Isolation | −67 dB at 1 MHz - suppresses crosstalk between inactive channels in multi-source routing applications |
| Logic Thresholds | VINH = 1.4 V, VINL = 0.5 V at V+ = 3 V - ensures compatibility with 1.8 V CMOS outputs without level shifting |
Pinout & Package
Package: QFN-16 (3 mm × 3 mm, 0.9 mm height), thermally enhanced with exposed pad; RoHS-compliant, halogen-free, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 12, 11, 10 | NC1–NC4, NO1–NO4 | Normally closed and normally open switch terminals - routed to external signal sources/sinks per DPDT configuration |
| 4, 5, 6, 8, 9, 13, 14, 15, 16 | COM1–COM4, IN1–IN4, V+, GND | Common analog paths, digital control inputs, power supply, and ground - COM pins serve as bidirectional signal hubs; IN pins accept 1.8 V logic |
| 7 | No connect | Internally unused terminal - must be left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Brake-before-make switching | Guaranteed ≤1 ns dead time prevents momentary shorting between NC and NO paths during state transitions |
| Rail-to-rail analog range | Supports 0 V to V+ signal swing - enables full utilization of ADC/DAC dynamic range without clipping |
| Low leakage current | ≤10 nA off-state leakage at 85 °C - preserves signal integrity in high-impedance sensor front-ends |
| Symmetric on-resistance flatness | ≤2 Ω RON variation over 0–V+ analog range - maintains channel matching in differential or balanced signal paths |
| Thermal shutdown protection | Derating of 4.0 mW/°C above 70 °C - ensures safe operation under sustained load in compact portable enclosures |
Applications
| Audio Signal Routing | Portable Instrumentation Multiplexing |
|---|---|
Use Scenario: Switching between microphone inputs, headphone outputs, and line-in/out jacks in smartphones and tablets. IC Role / Device Role / Timing Role: Dual DPDT analog switch managing bidirectional audio paths with simultaneous left/right channel control. Use Value: 6 Ω RON and −67 dB off-isolation preserve SNR >95 dB across 20 Hz–20 kHz band; 42 ns switching avoids audible pop/click artifacts. |
Use Scenario: Selecting among multiple sensor inputs (thermocouple, RTD, strain gauge) feeding a shared ADC in handheld test equipment. IC Role / Device Role / Timing Role: Precision analog multiplexer providing low-charge-injection, low-leakage signal gating before ADC sampling. Use Value: −1.46 pC charge injection and ≤10 nA leakage minimize offset drift and settling errors in 16-bit+ measurement systems. |
| PCMCIA/CardBus Interface | Battery-Powered Video Switching |
Use Scenario: Isolating legacy PCMCIA card I/O lines (data, address, control) from host controller during hot insertion/removal. IC Role / Device Role / Timing Role: High-bandwidth analog switch decoupling card signals to prevent bus contention and ESD coupling. Use Value: 180 MHz bandwidth and 30 pF channel-on capacitance ensure minimal signal distortion on 33 MHz CardBus data lines. |
Use Scenario: Routing composite video, S-video, or HDMI auxiliary audio between camera module, display, and storage in action cameras. IC Role / Device Role / Timing Role: Low-voltage DPDT switch enabling seamless source selection without external level shifters or power rails. Use Value: 1.8 V–5.5 V operation and 1.4 V logic threshold allow direct control from 1.8 V SoC GPIOs, reducing BOM count and PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual DPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4688EUB+ | Higher 12 Ω RON at 3 V; 100 MHz bandwidth; requires ≥2.7 V supply; no VL pin | Limited to higher-supply systems; less suitable for 1.8 V logic interfaces | Select when higher voltage margin and lower cost outweigh bandwidth/on-resistance requirements |
| ADG732BRUZ | 32-channel single-pole switch; 4 Ω RON at 3 V; SPI interface; larger TSSOP-48 package | Designed for high-channel-count, digitally controlled routing - not pin-compatible or functionally equivalent | Choose only for scalable, software-configurable multiplexing where board space permits larger footprint |
Compared with DG2018DN-T1-E4, MAX4688EUB+ trades bandwidth and low-voltage logic compatibility for cost and availability, while ADG732BRUZ offers channel density and digital control at the expense of analog simplicity, package size, and direct GPIO drive capability.
Availability
DG2018DN-T1-E4 is available at Aetrix Electronics and suitable for cellular phones, portable instrumentation, PCMCIA cards, audio/video routing, and battery-operated systems requiring stable component supply and long-term production continuity.
Supply support for DG2018DN-T1-E4 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 designs high-performance discrete semiconductors and analog ICs, specializing in power MOSFETs, diodes, optoelectronics, and precision analog switches for industrial, computing, and portable markets.
The DG2018DN-T1-E4 belongs to Vishay's low-voltage analog switch family engineered for mixed-signal routing in space-constrained, battery-powered devices - emphasizing rail-to-rail operation, low RON, and logic-level compatibility without external biasing.
FAQ
What is the maximum analog signal voltage range supported by DG2018DN-T1-E4?
The DG2018DN-T1-E4 supports analog signals from 0 V to V+ across all NC, NO, and COM terminals. When V+ is supplied at 3.3 V, the device passes signals from 0 V to 3.3 V without clipping or distortion. This rail-to-rail capability ensures full dynamic range utilization in ADC input conditioning and audio line-level switching applications involving the DG2018DN-T1-E4.
Does DG2018DN-T1-E4 require a separate VL reference pin like DG2019DN?
No, DG2018DN-T1-E4 does not include a VL pin. Its control inputs (IN1–IN4) operate with fixed logic thresholds: VINH = 1.4 V and VINL = 0.5 V at V+ = 3 V. Unlike the DG2019DN, which uses an external VL pin to set a 1.0 V threshold, the DG2018DN-T1-E4 relies on internal threshold design for 1.8 V logic compatibility - simplifying layout and eliminating the need for an auxiliary reference voltage.
What is the thermal derating behavior of DG2018DN-T1-E4 above 70 °C?
The DG2018DN-T1-E4 has a thermal derating factor of 4.0 mW/°C above 70 °C ambient temperature. Its QFN-16 package delivers 850 mW power dissipation at ≤70 °C; above that, allowable power drops linearly - e.g., at 85 °C, max dissipation is reduced to 790 mW. This derating ensures reliable operation in sealed portable enclosures where passive cooling is limited, preserving long-term performance of the DG2018DN-T1-E4.
Can DG2018DN-T1-E4 be used in bidirectional signal paths such as I²C or UART lines?
No, DG2018DN-T1-E4 is not recommended for I²C or UART signal switching. Although it conducts bidirectionally when on, its 9 pF input capacitance and lack of integrated pull-up/pull-down control can distort rise/fall times and violate timing budgets in open-drain or push-pull digital protocols. The DG2018DN-T1-E4 is optimized for analog and low-speed digital signal routing - not protocol-aware digital bus switching.
How is break-before-make timing guaranteed in DG2018DN-T1-E4?
Break-before-make timing in DG2018DN-T1-E4 is guaranteed by internal circuit design and characterized at ≤1 ns across −40 °C to +85 °C. This ensures no overlap between NC and NO conduction states during switching, preventing momentary shorts in applications like relay replacement or signal source isolation. The guarantee applies to all four SPDT sections within the DG2018DN-T1-E4 and is verified per functional test, not just typical simulation.
DG2018DN-T1-E4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- DPDT
- Multiplexer/Demultiplexer Circuit:
- 2:2
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 8Ohm
- Channel-to-Channel Matching (ΔRon):
- 600mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 48ns, 33ns
- -3db Bandwidth:
- 180MHz
- Charge Injection:
- -2.46pC
- Channel Capacitance (CS(off), CD(off)):
- 7.5pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -72dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (3x3)
DG2018DN-T1-E4 FAQ
1.How can I place an order for DG2018DN-T1-E4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2018DN-T1-E4 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 DG2018DN-T1-E4 reliable?
The price and inventory of DG2018DN-T1-E4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG2018DN-T1-E4 is usually 5 days.
3.What payment methods are accepted for DG2018DN-T1-E4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2018DN-T1-E4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2018DN-T1-E4?
DG2018DN-T1-E4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2018DN-T1-E4 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 DG2018DN-T1-E4?
For technical support, including DG2018DN-T1-E4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2018DN-T1-E4 requirements.
6.How does Aetrix verify that DG2018DN-T1-E4 is sourced from the original manufacturer or authorized distributors?
All DG2018DN-T1-E4 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 DG2018DN-T1-E4 meets industry standards.
7.What is the process for return or replacement of DG2018DN-T1-E4?
All DG2018DN-T1-E4 units undergo pre-shipment inspection (PSI). If there is an issue with DG2018DN-T1-E4, 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 DG2018DN-T1-E4 part is unused and in its original packaging.
Return procedure for DG2018DN-T1-E4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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