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Vishay Siliconix DG2731DN-T1-E4
- Part No.:
- DG2731DN-T1-E4
- Manufacturer:
- Vishay Siliconix
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
DG2731DN-T1-E4.pdf
- Description:
- IC SWITCH SPDT X 2 450MOHM 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,100
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Product details
Overview
DG2731DN-T1-E4 from Vishay Siliconix is a low-voltage, dual SPDT analog switch with 0.4 Ω typical on-resistance at 3.6 V, 50 ns turn-on time, and guaranteed break-before-make switching. It operates from 1.6 V to 4.3 V single supply, features reverse control logic, and is optimized for audio routing and battery-powered portable systems.
For engineers reviewing the DG2731DN-T1-E4 datasheet, DG2731DN-T1-E4 pinout, DG2731DN-T1-E4 application, or DG2731DN-T1-E4 equivalent, key selection criteria include on-resistance matching (±0.06 Ω), sub-100 ns switching performance, 1.6-V logic compatibility, and DFN-10 package thermal dissipation (1191 mW).
Technical Context
The DG2731DN-T1-E4 implements two independent SPDT switches in a monolithic CMOS process, each with separate digital control inputs using reverse logic (low = ON). Its sub-micron low-voltage architecture ensures latch-up immunity >300 mA per JESD78 and supports bidirectional analog signal conduction within rail-to-rail voltage range.
Break-before-make timing is guaranteed at ≤10 ns across temperature and supply voltage (1.6–4.3 V), and channel-to-channel on-resistance match is specified at ∆rON ≤ 0.06 Ω under 100 mA load. Input capacitance remains stable at 4–5 pF, enabling minimal signal distortion in high-frequency audio paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6 V to 4.3 V single supply - enables direct interface with one-cell Li-ion batteries (2.7–4.2 V) without regulation. |
| On-Resistance (rON) | 0.4 Ω typical @ 3.6 V - minimizes insertion loss and voltage drop in audio and sensor signal paths. |
| Turn-On/Off Time | 50 ns / 14 ns @ 4.3 V - supports fast multiplexing in real-time audio switching and data acquisition. |
| On-Resistance Match (∆rON) | ≤ 0.06 Ω - ensures matched gain and phase response between dual channels in stereo routing. |
| Logic Compatibility | 1.6-V input threshold - interoperable with low-voltage DSPs, MCUs, and baseband processors without level shifters. |
| Latch-Up Immunity | >300 mA per JESD78 - provides robust ESD and transient resilience in handheld device environments. |
| Off-Isolation (OIRR) | –75 dB @ 100 kHz - suppresses crosstalk between active and inactive signal paths in multi-source systems. |
Pinout & Package
Package: 10-pin DFN (3 mm × 3 mm, 0.5 mm pitch), lead (Pb)-free nickel-palladium-gold termination (-E4 suffix), MSL 1, JEDEC-compliant reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | NO1, NC1, COM1, NO2 | Switch terminals for first SPDT (pins 1–3) and second SPDT (pins 4, 6, 7); bidirectional analog path capability. |
| 6, 7, 8 | NC2, COM2, IN1 | Second SPDT common (pin 7), normally closed (pin 6), and first control input (pin 8) with reverse logic. |
| 9, 10 | IN2, V+ | Second control input (pin 9, reverse logic), and single positive supply rail (pin 10, GND referenced). |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance drift vs. voltage | rON varies only ±0.15 Ω from 1.8 V to 4.3 V - maintains consistent signal integrity across battery discharge curve. |
| Guaranteed break-before-make | tBBM ≤ 10 ns - eliminates momentary short-circuit risk during channel switching in audio and power-sensitive circuits. |
| Ultra-low leakage current | ICOM(off) ≤ ±10 nA @ 3.3 V - preserves DC accuracy in precision sensor front-ends and medical monitoring paths. |
| Minimal charge injection | QINJ = 9 pC - reduces glitch amplitude in sampled-data systems and prevents audible pop in headset switching. |
| Thermal performance | 1191 mW power dissipation rating - supports sustained operation in compact DFN layout without external heatsinking. |
Applications
| Cellular Phone Audio Routing | Speaker/Headset Switching |
|---|---|
Use Scenario: Dynamic selection between earpiece, loudspeaker, and 3.5 mm headset jack in smartphone baseband subsystems. IC Role / Device Role / Timing Role: Dual SPDT analog switch managing bidirectional audio paths with <10 ns break-before-make timing. Use Value: Enables zero-crossing mute-free transitions and eliminates mechanical relay wear while supporting 1.8 V control logic. |
Use Scenario: Automatic detection and routing of mono/stereo audio signals between internal speaker and external headset based on plug-in event. IC Role / Device Role / Timing Role: Low-RON analog switch isolating speaker driver output and headset amplifier input with <50 ns switching. Use Value: Prevents audible pop/click via 9 pC charge injection and maintains SNR >95 dB through –75 dB off-isolation. |
| PCMCIA Card Signal Multiplexing | Battery-Powered Medical Sensor Hub |
Use Scenario: Sharing analog front-end resources (ADC, PGA) among multiple PCMCIA peripheral cards (modem, GPS, Bluetooth) in legacy laptops. IC Role / Device Role / Timing Role: Dual SPDT switch providing rail-to-rail analog signal routing with 0.4 Ω RON and 1.6 V logic compatibility. Use Value: Eliminates need for external level shifters and reduces BOM count by enabling direct MCU GPIO control. |
Use Scenario: Multiplexing ECG, SpO₂, and temperature sensor outputs to a shared ADC in portable patient monitors. IC Role / Device Role / Timing Role: Precision analog switch with ≤±10 nA off-leakage and matched rON ensuring calibrated signal fidelity across channels. Use Value: Maintains diagnostic-grade accuracy (±0.1% gain error) and avoids baseline drift due to ultra-low leakage. |
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 TS5A23157DRCR | 0.55 Ω rON @ 3.3 V; 12 ns tOFF; no guaranteed break-before-make spec | Higher rON increases insertion loss in high-fidelity audio; lacks BBM guarantee for safety-critical signal isolation | Select when lower cost is prioritized over strict BBM timing and sub-0.4 Ω rON. |
| Analog Devices ADG732BRUZ | 0.8 Ω rON @ 3 V; 10-pin TSSOP; 100 ns tON; requires 2.5 V minimum supply | Slower switching and higher rON limit use in real-time audio; larger TSSOP footprint increases PCB area | Select when legacy TSSOP assembly infrastructure exists and 100 ns switching is acceptable. |
Compared with DG2731DN-T1-E4, TS5A23157DRCR trades guaranteed break-before-make and lower on-resistance for cost, while ADG732BRUZ sacrifices speed and efficiency for broader legacy compatibility - making DG2731DN-T1-E4 optimal for space-constrained, battery-powered audio and medical systems demanding precision timing and low-loss signal routing.
Availability
DG2731DN-T1-E4 is available at Aetrix Electronics and suitable for cellular phone audio routing, portable medical sensor hubs, PCMCIA card multiplexing, and battery-operated test equipment requiring stable component supply and long-term lifecycle support.
Supply support for DG2731DN-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 semiconductor manufacturer specializing in discrete components and analog ICs, with leadership in MOSFETs, diodes, optoelectronics, and precision analog switches.
The DG2731DN-T1-E4 belongs to Vishay's low-voltage analog switch product line, engineered specifically for portable electronics requiring rail-to-rail signal handling, ultra-low power consumption, and robust latch-up immunity in compact DFN packages.
FAQ
What is the maximum supply voltage rating for DG2731DN-T1-E4?
The absolute maximum supply voltage for DG2731DN-T1-E4 is 5.0 V, but its functional operating range is specified from 1.6 V to 4.3 V. Operating above 4.3 V may cause parametric degradation or reliability risk, and the device is not characterized beyond 4.3 V per datasheet Section "SPECIFICATIONS (V+ = 4.3 V)". DG2731DN-T1-E4 must be used within this 1.6–4.3 V window for guaranteed performance.
Does DG2731DN-T1-E4 support bidirectional analog signal switching?
Yes, DG2731DN-T1-E4 supports fully bidirectional analog signal conduction when enabled - signals on COM, NO, and NC pins can flow equally well in either direction, with identical on-resistance and capacitance characteristics. This is confirmed in the "DESCRIPTION" section stating "The switch conducts signals within power rails equally well in both directions when on", and validated by symmetric rON specs across voltage ranges in the datasheet tables for DG2731DN-T1-E4.
What does the "-E4" suffix indicate in DG2731DN-T1-E4?
Per Vishay documentation, the "-E4" suffix in DG2731DN-T1-E4 denotes lead (Pb)-free termination using nickel-palladium-gold plating on the DFN-10 package, compliant with RoHS and JEDEC reflow standards. This distinguishes it from the "-E3" variant (matte tin, MSOP-10), and confirms the part meets environmental requirements for modern electronics manufacturing without compromising solderability or MSL rating.
Is break-before-make timing guaranteed for DG2731DN-T1-E4 across all operating conditions?
Yes, break-before-make timing is guaranteed for DG2731DN-T1-E4 at ≤10 ns across the full operating temperature range (–40°C to +85°C) and supply voltage range (1.6 V to 4.3 V), as explicitly stated in the "SPECIFICATIONS (V+ = 4.3 V)" table under "Break-Before-Make Time tBBM". This guarantee applies to both SPDT sections and is verified per design, not just typical behavior.
How does DG2731DN-T1-E4 achieve 1.6-V logic compatibility?
DG2731DN-T1-E4 achieves 1.6-V logic compatibility through its input threshold specification: VINL ≤ 0.5 V and VINH ≥ 1.4 V at V+ = 1.8 V, and VINH ≥ 1.6 V at V+ = 4.3 V - allowing reliable recognition of low-voltage logic highs from 1.6-V-core MCUs and baseband processors. This is documented in the "SPECIFICATIONS" tables for all supply voltages and confirmed in the "DESCRIPTION" section's statement "1.6-V logic compatible".
DG2731DN-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):
- 450mOhm
- Channel-to-Channel Matching (ΔRon):
- 30mOhm
- Voltage - Supply, Single (V+):
- 1.65V ~ 4.3V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 110ns, 30ns
- -3db Bandwidth:
- -
- Charge Injection:
- 9pC
- Channel Capacitance (CS(off), CD(off)):
- 104pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -75dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
DG2731DN-T1-E4 FAQ
1.How can I place an order for DG2731DN-T1-E4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2731DN-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 DG2731DN-T1-E4 reliable?
The price and inventory of DG2731DN-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 DG2731DN-T1-E4 is usually 5 days.
3.What payment methods are accepted for DG2731DN-T1-E4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2731DN-T1-E4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2731DN-T1-E4?
DG2731DN-T1-E4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2731DN-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 DG2731DN-T1-E4?
For technical support, including DG2731DN-T1-E4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2731DN-T1-E4 requirements.
6.How does Aetrix verify that DG2731DN-T1-E4 is sourced from the original manufacturer or authorized distributors?
All DG2731DN-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 DG2731DN-T1-E4 meets industry standards.
7.What is the process for return or replacement of DG2731DN-T1-E4?
All DG2731DN-T1-E4 units undergo pre-shipment inspection (PSI). If there is an issue with DG2731DN-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 DG2731DN-T1-E4 part is unused and in its original packaging.
Return procedure for DG2731DN-T1-E4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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