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Vishay Siliconix DG2518DQ-T1-E3
- Part No.:
- DG2518DQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DG2518DQ-T1-E3.pdf
- Description:
- IC SWITCH SPDT X 2 4OHM 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,050
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Product details
Overview
DG2518DQ-T1-E3 from Vishay Siliconix is a dual SPDT analog switch IC designed for high-bandwidth signal routing in portable and interface applications. It operates from 1.8 V to 5.5 V, delivers 3 Ω on-resistance at 4.2 V, achieves 242 MHz –3 dB bandwidth, and supports 1.6 V logic-compatible control - enabling USB/UART and audio/video switching in battery-powered systems.
For engineers reviewing the DG2518DQ-T1-E3 datasheet, DG2518DQ-T1-E3 pinout, DG2518DQ-T1-E3 application, or DG2518DQ-T1-E3 equivalent, key selection criteria include on-resistance matching (0.2 Ω), off-isolation (–51 dB @ 10 MHz), charge injection (2 pC), rail-to-rail analog swing, and MSOP-10 lead-free packaging with matte tin terminations.
Technical Context
The DG2518DQ-T1-E3 integrates two independent SPDT switches in a single monolithic CMOS die, each with break-before-make switching action and matched RON across channels (ΔRON ≤ 0.4 Ω). Its sub-micron process enables low power consumption (<1 µA supply current) while maintaining full rail analog signal handling (0 V to V+).
Control inputs accept 1.6 V logic thresholds across the full 1.8–5.5 V supply range, eliminating level-shifting needs. Dynamic performance includes 12 ns typical turn-on time (V+ = 4.2 V), 242 MHz small-signal bandwidth, and <1 ns break-before-make interval - critical for glitch-free data and audio path switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct connection to Li-ion battery rails and 3.3 V/5 V logic domains without regulators. |
| On-Resistance (RON) | 3 Ω at V+ = 4.2 V - minimizes insertion loss and signal attenuation in high-fidelity audio and USB 2.0 paths. |
| –3 dB Bandwidth | 242 MHz - enables clean switching of USB 2.0 (480 Mbps) and composite video signals without roll-off. |
| Off-Isolation | –51 dB at 10 MHz - suppresses crosstalk between active and inactive signal paths in multi-channel routing. |
| Charge Injection | 2 pC - limits voltage glitch on switched nodes, preserving DC accuracy in precision sensor or ADC front-end multiplexing. |
| Logic Threshold | 1.6 V high-level compatible - ensures reliable control from 1.8 V I/O banks without external translators. |
| RON Matching | 0.2 Ω typical - maintains channel-to-channel signal integrity in differential or stereo applications. |
Pinout & Package
Package: MSOP-10 (3.0 mm × 4.9 mm, 0.5 mm pitch), lead-free with 100 % matte tin terminations per JEDEC MSL3 standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10 | V+ | Positive supply input - must be decoupled locally; supports 1.8–5.5 V operation. |
| 2, 9 | COM1 / COM2 | Common analog terminals - bidirectional, rail-to-rail capable signal ports for each SPDT switch. |
| 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 - 1.6 V logic-compatible; drive internal CMOS gates directly. |
| GND (Pin 8) | Ground reference | Analog and digital ground return - must be low-impedance and tied to system AGND/DGND plane. |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guarantees no momentary short between NO and NC paths, preventing signal glitches during state transitions. |
| Rail-to-rail analog signal handling | Supports full 0 V to V+ input/output swing - preserves dynamic range in audio, video, and sensor interfaces. |
| Low on-resistance flatness (1 Ω) | Ensures consistent RON across the entire analog voltage range - critical for THD-sensitive applications. |
| High off-isolation (–71 dB @ 1 MHz) | Minimizes signal bleed-through between inactive channels - essential for noise-sensitive mixed-signal PCB layouts. |
| Ultra-low leakage (±10 nA max) | Reduces error in high-impedance sensor multiplexing and battery-monitoring circuits over temperature. |
Applications
| USB 2.0 Data Switching | Portable Audio Routing |
|---|---|
Use Scenario: Dynamically selecting between two USB upstream hosts or downstream peripherals in OTG-capable smartphones and tablets. IC Role / Device Role / Timing Role: Dual SPDT analog switch managing D+ and D– differential pairs with minimal insertion loss and timing skew. Use Value: 242 MHz bandwidth and 3 Ω RON preserve USB 2.0 eye diagram integrity; 1.6 V logic compatibility enables direct control from 1.8 V application processors. | Use Scenario: Multiplexing stereo line-in, headset mic, and speaker outputs in media players and Bluetooth headsets. IC Role / Device Role / Timing Role: Low-distortion analog path selector supporting rail-to-rail audio signals up to 20 kHz with <0.01 % THD+N. Use Value: 0.2 Ω RON matching and 1 Ω flatness ensure balanced left/right channel gain tracking; <2 pC charge injection prevents pop/click artifacts. |
| Cellular Baseband Interface | PCMCIA/CardBus Signal Switching |
Use Scenario: Isolating RF transceiver I/Q baseband lines from test equipment or alternate modem paths during calibration or mode switching. IC Role / Device Role / Timing Role: High-linearity analog switch providing >70 dB off-isolation to prevent LO leakage and intermodulation distortion. Use Value: –51 dB off-isolation at 10 MHz and <1 ns break-before-make interval maintain spectral purity in LTE/WCDMA front-ends. | Use Scenario: Reconfiguring CardBus interface signals (e.g., EXCA, IORD#, IOWR#) between host controller and peripheral cards in industrial laptops. IC Role / Device Role / Timing Role: Logic-controlled analog switch enabling hot-plug reconfiguration of legacy parallel bus signals without reset. Use Value: 1.6 V logic threshold and 5.5 V tolerant analog pins allow interoperability with both 3.3 V and 5 V CardBus signaling standards. |
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 |
|---|---|---|---|
| MAX4688EUB+ | Higher RON (4.5 Ω typ), lower bandwidth (190 MHz), 2.7–5.5 V supply only. | Limited to 2.7 V minimum supply - unsuitable for 1.8 V battery systems. | Choose MAX4688EUB+ only if operating exclusively above 2.7 V and higher RON is acceptable. |
| ADG732BRUZ | 32-channel, not dual SPDT; 4 Ω RON; requires separate VLOGIC pin for level translation. | Over-specified channel count and package size (24-TSSOP) for simple dual-path routing. | Select ADG732BRUZ only when scalable multi-channel expansion is required beyond two SPDTs. |
Compared with MAX4688EUB+ and ADG732BRUZ, DG2518DQ-T1-E3 uniquely combines 1.8 V operation, 3 Ω RON, and 242 MHz bandwidth in an MSOP-10 footprint - making it optimal for space-constrained, battery-powered USB/audio routing where supply headroom and signal fidelity are critical.
Availability
DG2518DQ-T1-E3 is available at Aetrix Electronics and suitable for USB/UART signal switching, portable audio routing, and cellular baseband interface applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for DG2518DQ-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 semiconductor manufacturer specializing in discrete components and analog ICs, with leadership in MOSFETs, diodes, optoelectronics, and precision analog switches.
The DG2517/DG2518 product line was engineered for high-bandwidth, low-voltage signal routing in portable consumer electronics - prioritizing rail-to-rail operation, ultra-low RON, and logic-level compatibility without external level shifters.
FAQ
What is the maximum analog signal voltage range supported by DG2518DQ-T1-E3?
DG2518DQ-T1-E3 supports a full rail-to-rail analog signal range from 0 V to V+, where V+ can be set between 1.8 V and 5.5 V. This means that with a 3.3 V supply, the device passes signals from 0 V to 3.3 V without clipping or distortion - a key requirement for audio, video, and USB differential pair routing. Absolute maximum analog voltage is V+ + 0.3 V, but operation beyond V+ degrades performance and risks latch-up.
Does DG2518DQ-T1-E3 require external level-shifting circuitry when driven by 1.8 V logic?
No, DG2518DQ-T1-E3 does not require external level shifting when driven by 1.8 V logic. Its input high threshold is specified at 1.4 V (min) for V+ = 3 V and 2.0 V (min) for V+ = 5 V, and it is explicitly rated as "+1.6 V logic compatible" across the full 1.8–5.5 V supply range. This allows direct interfacing with 1.8 V GPIOs from modern application processors and microcontrollers without additional components.
How does the DG2518DQ-T1-E3 pin configuration differ from DG2517DQ-T1-E3?
DG2518DQ-T1-E3 and DG2517DQ-T1-E3 share identical pinouts and packages but differ in internal switch topology: DG2518DQ-T1-E3 connects IN1/IN2 to normally closed (NC1/NC2) paths when logic low, whereas DG2517DQ-T1-E3 connects them to normally open (NO1/NO2) paths under the same condition. The truth table confirms complementary behavior - a logic '0' turns ON NC paths in DG2518DQ-T1-E3 and ON NO paths in DG2517DQ-T1-E3 - enabling design flexibility for active-low vs. active-high control schemes.
What thermal derating applies to DG2518DQ-T1-E3 in MSOP-10 package?
For the MSOP-10 package, DG2518DQ-T1-E3 requires thermal derating above 70 °C ambient: power dissipation must be reduced by 4.0 mW per °C rise. At 85 °C, the maximum allowable power drops from the rated 320 mW (at ≤70 °C) to 260 mW. This reflects the package's thermal resistance and must be accounted for in high-density PCB layouts or sealed enclosures where junction temperature could exceed safe limits.
Is DG2518DQ-T1-E3 suitable for switching USB 2.0 differential signals?
Yes, DG2518DQ-T1-E3 is suitable for USB 2.0 differential signal switching. Its 242 MHz –3 dB bandwidth exceeds the 240 MHz fundamental frequency content of 480 Mbps USB 2.0 data, and its 3 Ω RON with 0.2 Ω matching minimizes skew and insertion loss across D+ and D– paths. Measured crosstalk (–55 dB @ 10 MHz) and off-isolation (–51 dB @ 10 MHz) further ensure signal integrity - confirmed in Vishay's application guidance for USB signal routing.
DG2518DQ-T1-E3 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-MSOP
DG2518DQ-T1-E3 FAQ
1.How can I place an order for DG2518DQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2518DQ-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 DG2518DQ-T1-E3 reliable?
The price and inventory of DG2518DQ-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 DG2518DQ-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG2518DQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2518DQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2518DQ-T1-E3?
DG2518DQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2518DQ-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 DG2518DQ-T1-E3?
For technical support, including DG2518DQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2518DQ-T1-E3 requirements.
6.How does Aetrix verify that DG2518DQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG2518DQ-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 DG2518DQ-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG2518DQ-T1-E3?
All DG2518DQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG2518DQ-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 DG2518DQ-T1-E3 part is unused and in its original packaging.
Return procedure for DG2518DQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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