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Vishay Siliconix DG2731DQ-T1-E3
- Part No.:
- DG2731DQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DG2731DQ-T1-E3.pdf
- Description:
- IC SWITCH SPDTX2 450MOHM 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,362
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Product details
Overview
DG2731DQ-T1-E3 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 operation from 1.6 V to 4.3 V single supply. It features reverse control logic, break-before-make switching, and 300 mA latch-up immunity - designed for audio routing and battery-powered signal path selection in portable electronics.
For engineers reviewing the DG2731DQ-T1-E3 datasheet, DG2731DQ-T1-E3 pinout, DG2731DQ-T1-E3 application, or DG2731DQ-T1-E3 equivalent, key selection criteria include on-resistance matching (±0.06 Ω), sub-100 ns switching performance, 1.6-V logic compatibility, and MSOP-10 lead-free packaging with matte tin terminations.
Technical Context
The DG2731DQ-T1-E3 implements dual independent SPDT switches using sub-micron CMOS process technology, enabling bidirectional analog conduction within rail-to-rail voltage range and guaranteed break-before-make timing of ≤10 ns. Its control architecture uses two separate logic inputs with inverted polarity - high logic disables the normally closed (NC) path and enables the normally open (NO) path.
Designed for 1.6–4.3 V operation, it delivers <0.5 Ω on-resistance across temperature and supply voltage, supports ±250 mA continuous channel current, and maintains <10 pA off-leakage at 85°C. Input capacitance is 5 pF, and power supply current remains ≤1.0 µA over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (rON) | 0.4 Ω max at V+ = 3.6 V, 100 mA load - ensures minimal signal attenuation in audio and sensor paths |
| Supply Voltage Range | 1.6 V to 4.3 V single supply - directly compatible with one-cell Li-ion batteries (2.7–4.2 V) without regulation |
| Turn-On Time (tON) | 50 ns at V+ = 4.3 V, RL = 50 Ω, CL = 35 pF - supports fast multiplexing in real-time audio/video routing |
| Break-Before-Make Time | ≤10 ns - prevents momentary short-circuit between NC and NO paths during state transition |
| Latch-Up Immunity | >300 mA per JESD78 - eliminates risk of destructive latch-up under transient overcurrent conditions |
| Logic Compatibility | 1.6-V input threshold - interfaces directly with low-voltage DSPs and ARM Cortex-M MCUs without level shifting |
| Off-Leakage Current | ±20 nA max at V+ = 4.3 V, 85°C - preserves signal integrity in high-impedance sensor front-ends |
Pinout & Package
DG2731DQ-T1-E3 is housed in a 10-pin MSOP package (3.0 mm × 3.0 mm × 1.0 mm height) with matte tin terminations, RoHS-compliant and MSL-1 rated. The exposed pad is not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Analog I/O (COM1/NO1/NC1, COM2/NO2/NC2) | Bidirectional analog signal paths; each COM connects to either NO or NC based on control logic state |
| 9, 10 | Digital Control Inputs (IN1, IN2) | Inverted logic: logic high selects NO path; logic low selects NC path - no enable pin (DG2731 variant) |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance matching | ΔrON ≤ 0.06 Ω - minimizes gain error in differential or matched-channel applications |
| Charge injection | 9 pC - reduces glitch-induced offset in precision sampling circuits |
| Off-isolation | –75 dB at 100 kHz - suppresses crosstalk between inactive channels in multi-source systems |
| Channel capacitance | CNO(on)/CNC(on) = 230 pF - maintains bandwidth stability when driving capacitive loads |
| Input capacitance | 5 pF - limits loading on driving logic and preserves high-speed digital edge integrity |
Applications
| Cellular Phone Audio Routing | Speaker/Headset Switching |
|---|---|
Use Scenario: Dynamic reconfiguration of microphone, earpiece, speaker, and headset signals in smartphone baseband subsystems. IC Role / Device Role / Timing Role: Dual SPDT analog switch managing bidirectional audio paths with sub-100 ns switching and rail-to-rail conduction. Use Value: Enables seamless mode transitions (e.g., call → headset → speaker) without audible pop/click due to break-before-make timing and low charge injection. | Use Scenario: Selecting between internal loudspeaker and external 3.5 mm headset jack in portable media players and tablets. IC Role / Device Role / Timing Role: Low-RON analog switch isolating or connecting audio output stages while preserving THD+N performance. Use Value: 0.4 Ω rON avoids insertion loss; ±250 mA channel rating supports direct drive of 8 Ω speakers at low supply voltages. |
| PCMCIA/CardBus Signal Multiplexing | Battery-Powered Instrumentation Front-End |
Use Scenario: Sharing analog and digital lines between host controller and multiple peripheral cards in legacy PCMCIA expansion slots. IC Role / Device Role / Timing Role: Dual SPDT switch providing configurable signal routing for voltage-level translation and bus isolation. Use Value: 1.6 V logic compatibility allows direct interface with low-voltage CardBus controllers; 300 mA latch-up immunity withstands hot-insertion transients. | Use Scenario: Channel selection in handheld multimeters, data loggers, and portable sensor analyzers with mixed-signal front-ends. IC Role / Device Role / Timing Role: Precision analog switch routing sensor outputs to ADC inputs while rejecting leakage-induced offset drift. Use Value: <10 pA off-leakage at 85°C ensures stable DC accuracy; low rON matching preserves common-mode rejection in differential measurements. |
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 |
|---|---|---|---|
| MAX4680EUB+ | Higher on-resistance (0.8 Ω typ), 5 V only supply, μMAX-10 package | Requires level-shifting for 1.8 V logic; unsuitable for single-cell Li-ion direct operation | Select when 5 V system integration and higher voltage tolerance outweigh low-voltage efficiency needs |
| ADG732BRUZ | 32-channel, serial SPI interface, 2.5 V min supply, TSSOP-38 package | Not pin-compatible; requires firmware control and PCB redesign; better for high-channel-count systems | Select when scalable channel count and digital configuration outweigh compact dual-SPDT simplicity |
Compared with MAX4680EUB+ and ADG732BRUZ, DG2731DQ-T1-E3 offers superior low-voltage operation (1.6 V), lowest on-resistance in its class, and direct MSOP-10 drop-in suitability for space-constrained portable designs - making it optimal for battery-powered audio and signal routing where efficiency and layout simplicity are critical.
Availability
DG2731DQ-T1-E3 is available at Aetrix Electronics and suitable for cellular phone audio routing, speaker/headset switching, and battery-powered instrumentation requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for DG2731DQ-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 MOSFETs, diodes, optoelectronics, and analog switches - with emphasis on high-reliability, low-power, and lead-free solutions.
The DG2731DQ-T1-E3 belongs to Vishay's low-voltage analog switch product line, engineered specifically for portable and battery-operated systems demanding ultra-low on-resistance, rail-to-rail signal handling, and robust latch-up immunity.
FAQ
What is the maximum analog signal voltage range supported by DG2731DQ-T1-E3?
DG2731DQ-T1-E3 supports analog signals from 0 V to V+, where V+ ranges from 1.6 V to 4.3 V. At V+ = 4.3 V, the full analog range is 0–4.3 V. Signals exceeding V+ are clamped by internal diodes - forward current must be limited to avoid damage. This rail-to-rail capability enables direct interfacing with unbuffered sensor or audio sources without external level shifting.
Does DG2731DQ-T1-E3 have an enable pin like DG2733?
No, DG2731DQ-T1-E3 does not include an EN pin. It uses two dedicated control inputs (IN1 and IN2) with reverse logic - logic high enables the NO path and disables the NC path. The DG2733 variant adds an EN pin for global device enable/disable; DG2731DQ-T1-E3 relies solely on individual channel control, simplifying logic interface in fixed-configuration systems.
What is the thermal derating behavior of DG2731DQ-T1-E3 above 70°C?
DG2731DQ-T1-E3 has a thermal derating coefficient of 4.0 mW/°C above 70°C for the MSOP-10 package. Its maximum power dissipation drops linearly from 320 mW at 70°C to 280 mW at 80°C. This derating ensures safe operation under sustained ambient temperatures up to 85°C - verified in specification tables and confirmed by Vishay's thermal characterization data.
Can DG2731DQ-T1-E3 be used with 1.8 V logic without level shifters?
Yes, DG2731DQ-T1-E3 is fully 1.6-V logic compatible. Its input high voltage (VINH) is specified at 1.4 V min at V+ = 1.8 V, and input low voltage (VINL) is 0.4 V max - ensuring reliable recognition of standard 1.8 V CMOS logic levels. No external level shifter is required when interfacing with 1.8 V FPGAs, microcontrollers, or baseband processors.
Is the MSOP-10 package of DG2731DQ-T1-E3 RoHS-compliant and lead-free?
Yes, DG2731DQ-T1-E3 uses a lead-free MSOP-10 package with 100% matte tin terminations, designated by the "-E3" suffix. It meets all JEDEC standards for reflow soldering and MSL-1 moisture sensitivity, and complies with RoHS Directive 2011/65/EU. The matte tin finish provides reliable solderability and long-term interconnect integrity without lead-based alloys.
DG2731DQ-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):
- 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-MSOP
DG2731DQ-T1-E3 FAQ
1.How can I place an order for DG2731DQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2731DQ-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 DG2731DQ-T1-E3 reliable?
The price and inventory of DG2731DQ-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 DG2731DQ-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG2731DQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2731DQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2731DQ-T1-E3?
DG2731DQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2731DQ-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 DG2731DQ-T1-E3?
For technical support, including DG2731DQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2731DQ-T1-E3 requirements.
6.How does Aetrix verify that DG2731DQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG2731DQ-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 DG2731DQ-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG2731DQ-T1-E3?
All DG2731DQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG2731DQ-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 DG2731DQ-T1-E3 part is unused and in its original packaging.
Return procedure for DG2731DQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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