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Vishay Siliconix DG2518DN-T1-E4
- Part No.:
- DG2518DN-T1-E4
- Manufacturer:
- Vishay Siliconix
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
DG2518DN-T1-E4.pdf
- Description:
- IC SWITCH SPDT X 2 4OHM 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,115
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Product details
Overview
DG2518DN-T1-E4 from Vishay Siliconix is a dual SPDT analog switch in DFN-10 package, operating from 1.8 V to 5.5 V supply, delivering 3 Ω on-resistance at 4.2 V, 242 MHz −3 dB bandwidth, and −51 dB off-isolation at 10 MHz - optimized for high-fidelity USB/UART and audio/video signal routing in portable electronics.
For engineers reviewing the DG2518DN-T1-E4 datasheet, DG2518DN-T1-E4 pinout, DG2518DN-T1-E4 application, or DG2518DN-T1-E4 equivalent, key selection criteria include rail-to-rail analog swing, 1.6 V logic compatibility across full supply range, low 1 pC charge injection, and DFN-10 footprint suitability for space-constrained mobile designs.
Technical Context
The DG2518DN-T1-E4 implements two independent SPDT switches with break-before-make timing (≤1 ns), each controlled by a single CMOS-compatible digital input. Its sub-micron CMOS process enables low RON flatness (1 Ω) and matching (0.2 Ω) over 0–V+ signal range, supporting full-rail analog signal handling without distortion.
It features integrated ESD protection, 8 pF off-capacitance per NC/NO terminal, 35 pF channel-on capacitance, and operates with ≤1 µA supply current - enabling low-power, high-linearity switching in battery-powered systems without external biasing or level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct interface with Li-ion battery, 3.3 V, and 5 V logic domains |
| On-Resistance (RON) | 3 Ω at V+ = 4.2 V - ensures minimal insertion loss and voltage drop in signal paths |
| −3 dB Bandwidth | 242 MHz - enables clean switching of USB 2.0 (480 Mbps) and HD video signals |
| Off-Isolation | −51 dB at 10 MHz - suppresses crosstalk between active and inactive channels |
| Charge Injection | 1 pC - minimizes glitch-induced DC offset in precision sampling circuits |
| Logic Compatibility | +1.6 V input threshold - allows direct drive from 1.8 V microcontrollers without level shifters |
| Package | DFN-10 (3 mm × 3 mm, 0.5 mm pitch) - provides compact, thermally efficient layout for handheld PCBs |
Pinout & Package
DFN-10 package with exposed thermal pad (3.0 mm × 3.0 mm body, 0.80–1.00 mm height); RoHS-compliant nickel-palladium-gold terminations per JEDEC MO-187 AA/BA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10 | V+ | Positive supply input - must be decoupled locally to GND with ≥0.1 µF ceramic capacitor |
| 2, 9 | COM1 / COM2 | Common analog terminals - bidirectional signal ports shared between NO and NC paths |
| 3, 8 | NO1 / NO2 | Normally open analog terminals - connect to COM when IN = logic high |
| 4, 7 | NC1 / NC2 | Normally closed analog terminals - connect to COM when IN = logic low |
| 5, 6 | IN1 / IN2 | Digital control inputs - CMOS-compatible, no external pull-up required |
| Center Pad | GND (exposed) | Thermal and electrical ground - must be soldered to PCB ground plane for thermal stability |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports 0 V to V+ input/output swing - eliminates clipping in audio and sensor interfaces |
| Low RON flatness (1 Ω) | Maintains consistent gain and THD across full signal range - critical for high-fidelity audio routing |
| Break-before-make switching | Prevents momentary short-circuit between NO and NC - avoids signal corruption during state transitions |
| 1.6 V logic threshold | Enables direct control from 1.8 V I/O banks - removes need for external level translators |
| Low 8 pF off-capacitance | Reduces capacitive loading on source devices - preserves signal integrity in high-speed buses |
Applications
| USB 2.0 Data Switching | Mobile Audio Routing |
|---|---|
Use Scenario: Dynamically selecting between two USB hosts (e.g., PC and charger IC) connected to a single device port. IC Role / Device Role: Dual SPDT analog switch managing D+ and D− differential pairs with matched RON and timing. Use Value: Maintains USB 2.0 eye diagram integrity via 242 MHz bandwidth and <1 pC charge injection - prevents enumeration failures. | Use Scenario: Routing stereo line-out, headset mic, and speaker outputs in smartphones or tablets. IC Role / Device Role: Low-distortion analog multiplexer enabling shared audio codec resources across multiple peripherals. Use Value: 3 Ω RON and 0.2 Ω matching preserve channel balance; rail-to-rail swing avoids clipping in ±1.5 V headphone drivers. |
| Video Signal Multiplexing | Modem Interface Selection |
Use Scenario: Switching composite video or MIPI D-PHY clock/data lanes between camera and display subsystems. IC Role / Device Role: High-bandwidth analog switch handling baseband video or high-speed serial clock signals. Use Value: −51 dB off-isolation at 10 MHz suppresses interference between video sources; 35 pF on-capacitance minimizes edge degradation. | Use Scenario: Isolating UART lines between baseband processor and cellular modem during sleep/wake transitions. IC Role / Device Role: Low-leakage (±10 nA) SPDT switch preventing standby current leakage and false wake events. Use Value: Sub-µA supply current and <10 nA off-state leakage extend battery life in always-on modem applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Texas Instruments TS5A23157DCUR | Higher RON (0.9 Ω typical at 3.3 V), lower bandwidth (200 MHz), same DFN-10 package | Optimized for 3.3 V systems; less suitable for 1.8 V logic or USB 2.0 full-speed | Select if supply is fixed at 3.3 V and bandwidth margin >40 MHz is acceptable |
| Analog Devices ADG732BRUZ | 32-channel, not dual SPDT; larger TSSOP-48 package; higher RON (4.5 Ω), lower bandwidth (190 MHz) | Targeted at industrial multiplexing, not portable signal routing | Choose only for high-channel-count, non-portable applications requiring SPI control |
Compared with TS5A23157DCUR and ADG732BRUZ, DG2518DN-T1-E4 uniquely combines 1.8 V logic compatibility, 242 MHz bandwidth, and DFN-10 footprint - making it the only option validated for simultaneous USB 2.0 and audio routing in space-constrained mobile designs.
Availability
DG2518DN-T1-E4 is available at Aetrix Electronics and suitable for USB interface switching, mobile audio routing, video multiplexing, and modem UART isolation requiring stable component supply and lead-free compliance.
Supply support for DG2518DN-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 is a global designer and manufacturer of discrete semiconductors and passive components, specializing in high-reliability, high-performance solutions for power, signal, and sensing applications.
The DG2518DN-T1-E4 belongs to Vishay's low-voltage analog switch product line, engineered specifically for high-bandwidth, low-distortion signal routing in portable consumer electronics with stringent size and power constraints.
FAQ
What is the maximum analog signal voltage range supported by DG2518DN-T1-E4?
DG2518DN-T1-E4 supports analog signals from 0 V to V+, where V+ ranges from 1.8 V to 5.5 V. This rail-to-rail capability allows full-swing signal handling without clipping - confirmed in the datasheet's "Analog Signal Range" specification (0 V to V+) and verified across temperature (−40 °C to +85 °C) with no derating required.
Does DG2518DN-T1-E4 require external pull-up or pull-down resistors on its IN1/IN2 pins?
No, DG2518DN-T1-E4 does not require external pull-up or pull-down resistors. Its digital inputs are CMOS-compatible with guaranteed logic thresholds (VINH = 1.4 V min at 3 V supply, 2.0 V min at 5 V), and input leakage remains ≤1 µA across temperature - enabling direct connection to microcontroller GPIOs without additional biasing components.
How does the DFN-10 package of DG2518DN-T1-E4 improve thermal performance compared to MSOP-10?
The DFN-10 package of DG2518DN-T1-E4 features an exposed thermal pad that lowers junction-to-board thermal resistance to 14.9 mW/°C above 70 °C (vs. 4.0 mW/°C for MSOP-10), enabling higher continuous power dissipation (1191 mW vs. 320 mW). This allows sustained operation in thermally dense mobile PCB layouts without thermal throttling.
Can DG2518DN-T1-E4 be used to switch differential USB 2.0 signals without signal integrity degradation?
Yes, DG2518DN-T1-E4 is validated for USB 2.0 differential pair switching: its 242 MHz −3 dB bandwidth exceeds USB 2.0 full-speed (12 Mbps) and high-speed (480 Mbps) Nyquist requirements, while matched RON (0.2 Ω) and low crosstalk (−55 dB at 10 MHz) preserve differential impedance and eye opening - confirmed in Vishay's application notes and characterization data.
What is the maximum allowable analog signal voltage relative to V+ for DG2518DN-T1-E4?
DG2518DN-T1-E4 allows analog signals up to V+ + 0.3 V on COM, NO, and NC terminals - per Absolute Maximum Ratings. Exceeding this clamps the signal via internal diodes; forward current must be limited to ±50 mA continuous or ±200 mA pulsed (1 ms, 10% duty cycle) to avoid damage, as specified in Note a of the datasheet.
DG2518DN-T1-E4 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:
- 2
- On-State Resistance (Max):
- 4Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 25ns, 20ns
- -3db Bandwidth:
- 242MHz
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -73dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
DG2518DN-T1-E4 FAQ
1.How can I place an order for DG2518DN-T1-E4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2518DN-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 DG2518DN-T1-E4 reliable?
The price and inventory of DG2518DN-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 DG2518DN-T1-E4 is usually 5 days.
3.What payment methods are accepted for DG2518DN-T1-E4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2518DN-T1-E4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2518DN-T1-E4?
DG2518DN-T1-E4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2518DN-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 DG2518DN-T1-E4?
For technical support, including DG2518DN-T1-E4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2518DN-T1-E4 requirements.
6.How does Aetrix verify that DG2518DN-T1-E4 is sourced from the original manufacturer or authorized distributors?
All DG2518DN-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 DG2518DN-T1-E4 meets industry standards.
7.What is the process for return or replacement of DG2518DN-T1-E4?
All DG2518DN-T1-E4 units undergo pre-shipment inspection (PSI). If there is an issue with DG2518DN-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 DG2518DN-T1-E4 part is unused and in its original packaging.
Return procedure for DG2518DN-T1-E4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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