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Vishay Siliconix DG2747DN-T1-E4
- Part No.:
- DG2747DN-T1-E4
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-UFQFN
- Datasheet:
-
DG2747DN-T1-E4.pdf
- Description:
- IC SW SPST-NOX2 600MOHM 8MINIQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,117
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Product details
Overview
DG2747DN-T1-E4 from Vishay Siliconix is a dual single-pole single-throw (SPST) analog switch in miniQFN-8L package, designed for bidirectional signal routing in low-voltage portable systems. It delivers 0.4 Ω typical on-resistance at 2.7 V, -72 dB off-isolation at 100 kHz, and 93 MHz -3 dB bandwidth - enabling high-fidelity audio switching in space-constrained handheld devices.
For engineers reviewing the DG2747DN-T1-E4 datasheet, DG2747DN-T1-E4 pinout, DG2747DN-T1-E4 application, or DG2747DN-T1-E4 equivalent, key selection criteria include its 1.6 V to 4.3 V supply range, 0.1 Ω on-resistance flatness, 1.4 V logic-high threshold compatible with 1.8 V/2.5 V digital controllers, and ±300 mA continuous current rating per switch path.
Technical Context
The DG2747DN-T1-E4 implements two independent SPST switches with break-before-make operation confirmed by functional block diagram and truth table. Each switch supports rail-to-rail analog signal transmission (VCOM up to V+) and features internal ESD protection exceeding 7 kV HBM.
Its control logic accepts input voltages up to V+ + 0.3 V, with guaranteed logic-high recognition at 1.4 V (V+ = 3 V), enabling direct interfacing with low-voltage microcontrollers. Dynamic performance includes 14 ns typical turn-on time and 12 ns typical turn-off time under 50 Ω/35 pF load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RDS(on)) | 0.4 Ω typ. at 2.7 V - enables minimal signal attenuation in audio and sensor paths |
| On-resistance flatness | 0.1 Ω at 2.7 V - ensures consistent gain across analog voltage range for low THD |
| Off-isolation | -72 dB at 100 kHz - suppresses crosstalk between active and inactive channels |
| Crosstalk | -100 dB at 100 kHz - critical for multi-channel audio routing without interference |
| Bandwidth (-3 dB) | 93 MHz - supports high-speed data switching including USB 1.1 and SDIO signals |
| Supply voltage range | 1.6 V to 4.3 V - compatible with Li-ion battery discharge curve and 3.3 V/2.5 V rails |
| Logic high threshold (VINH) | 1.4 V min. at V+ = 3 V - ensures reliable activation from 1.8 V GPIOs |
Pinout & Package
The DG2747DN-T1-E4 is housed in a lead-free miniQFN-8L package measuring 1.4 mm × 1.4 mm × 0.55 mm, with wettable flank leads for automated optical inspection. Thermal resistance θJA is 220 °C/W; power dissipation derates 2.4 mW/°C above 70 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for analog and digital domains; must be low-impedance connection |
| 2 | V+ | Positive supply input (1.6–4.3 V); powers analog switch core and level-shifting logic |
| 3 | IN1 | Digital control input for Channel 1; logic high enables COM1–NO1 connection |
| 4 | IN2 | Digital control input for Channel 2; independent of IN1 for asynchronous switching |
| 5 | NO2 | Normally open terminal for Channel 2; connects to COM2 when IN2 = high |
| 6 | COM1 | Common analog terminal for Channel 1; bidirectional signal path between NO1 and COM1 |
| 7 | NO1 | Normally open terminal for Channel 1; connects to COM1 when IN1 = high |
| 8 | COM2 | Common analog terminal for Channel 2; bidirectional signal path between NO2 and COM2 |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports signals from GND to V+ (up to 4.3 V) in either direction - eliminates level-shifting in battery-powered audio paths |
| Ultra-low on-resistance flatness | 0.1 Ω variation over full analog range at 2.7 V - preserves linearity in precision sensor multiplexing |
| High-speed switching | 14 ns tON/12 ns tOFF - enables use in burst-mode data acquisition and fast ADC channel selection |
| Low charge injection | 10 pC - minimizes transient glitches during switching in sample-and-hold circuits |
| ESD robustness | >7 kV HBM - reduces need for external protection in handheld device front-end interfaces |
Applications
| Cellular Phone Audio Routing | Portable Media Player Line-Out Switching |
|---|---|
|
Use Scenario: Selecting between earpiece, speaker, and headset outputs in smartphone baseband IC audio subsystems. IC Role / Device Role / Timing Role: Dual SPST analog switch providing isolated, low-distortion signal paths controlled by AP GPIOs. Use Value: 0.03 % THD and -100 dB crosstalk prevent audible artifacts during output switching; 0.4 Ω RDS(on) avoids volume loss. |
Use Scenario: Routing stereo line-out signals to headphone jack or external DAC in flash-based MP3 players. IC Role / Device Role / Timing Role: Bidirectional analog switch enabling flexible output configuration without signal inversion. Use Value: Rail-to-rail operation preserves full dynamic range; 93 MHz bandwidth accommodates wideband audio formats up to 96 kHz sampling. |
| GPS Receiver Antenna Sharing | Medical Sensor Multiplexer |
|
Use Scenario: Sharing a single GPS antenna between RF front-end and diversity receiver paths in portable navigation devices. IC Role / Device Role / Timing Role: Low-capacitance analog switch isolating RF paths while maintaining impedance continuity. Use Value: CCOM(off) = 55 pF and CNO(off) = 75 pF minimize detuning; -72 dB off-isolation prevents LO leakage between receivers. |
Use Scenario: Multiplexing outputs from multiple biopotential sensors (ECG, EMG) into a single ADC channel in wearable monitors. IC Role / Device Role / Timing Role: Precision analog switch with ultra-low leakage (<10 nA) and flat on-resistance for accurate DC-coupled measurements. Use Value: 0.1 Ω RON flatness ensures consistent gain across all channels; <2 nA off-leakage avoids baseline drift in µV-level signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Texas Instruments TS5A23157DCUR | 0.9 Ω RDS(on) at 3 V; 1.65–5.5 V supply; no wettable flanks | Higher on-resistance increases insertion loss in audio paths; wider supply range suits mixed-voltage systems | Select when board-level ESD protection exists and 0.9 Ω RDS(on) is acceptable for signal integrity |
| Analog Devices ADG849YRMZ-REEL7 | 0.5 Ω RDS(on) at 3 V; 1.8–5.5 V supply; MSOP-8 package (3 × 3 mm) | Larger footprint consumes 4.5× more PCB area; higher 1.8 V minimum supply excludes sub-1.8 V MCU control | Select when MSOP-8 is preferred for manual rework or thermal mass requirements outweigh size constraints |
Compared with TS5A23157DCUR and ADG849YRMZ-REEL7, the DG2747DN-T1-E4 offers the lowest on-resistance (0.4 Ω) in the smallest footprint (1.4 mm²), making it optimal for ultra-portable designs where signal fidelity and board space are critical - but requires strict adherence to 1.6–4.3 V supply and 1.4 V logic-high threshold.
Availability
DG2747DN-T1-E4 is available at Aetrix Electronics and suitable for cellular phones, portable media players, GPS modules, and medical wearables requiring stable component supply across extended temperature ranges (-40 °C to +85 °C).
Supply support for DG2747DN-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, analog switches, and power management solutions with emphasis on high reliability and miniaturization.
The DG2747DN-T1-E4 belongs to Vishay's low-voltage analog switch product line, engineered specifically for portable electronics demanding ultra-low on-resistance, minimal board area, and robust ESD tolerance in sub-2 mm² packages.
FAQ
What is the maximum analog signal voltage supported by the DG2747DN-T1-E4?
The DG2747DN-T1-E4 supports analog signals from GND to V+, with absolute maximum ratings allowing signals up to V+ + 0.3 V on NO, NC, or COM terminals. At V+ = 4.3 V, this permits up to 4.6 V peak analog swing. Exceeding this clamps via internal diodes, so design must limit forward current to rated limits per datasheet Note a.
Does the DG2747DN-T1-E4 support break-before-make switching?
No - the DG2747DN-T1-E4 implements simultaneous make-and-break behavior per its truth table and functional diagram. Only the DG2749 variant in the same family provides break-before-make operation. Using DG2747DN-T1-E4 in applications requiring guaranteed isolation during transition requires external timing control or additional circuitry.
Can the DG2747DN-T1-E4 be used with 1.8 V logic controllers?
Yes - the DG2747DN-T1-E4 guarantees logic-high recognition at 1.4 V (min.) when V+ = 3 V, and its inputs tolerate voltages up to V+ + 0.3 V. A 1.8 V GPIO driving IN1 or IN2 meets the 1.4 V threshold with margin and remains within absolute maximum ratings, enabling direct interface without level shifters.
What is the thermal performance limitation of the DG2747DN-T1-E4 in continuous operation?
The DG2747DN-T1-E4 has a maximum power dissipation of 190 mW in miniQFN-8L package at TA = 70 °C, derating linearly by 2.4 mW/°C above that temperature. At 85 °C ambient, max power drops to 154 mW. Designers must verify junction temperature using θJA = 220 °C/W and actual power dissipation based on RDS(on) and load current.
Is the DG2747DN-T1-E4 RoHS-compliant and halogen-free?
Yes - the DG2747DN-T1-E4 is 100 % RoHS-compliant per Directive 2011/65/EU and certified halogen-free per JEDEC JS709A. Its lead-free terminations and compliant materials are documented in Vishay's material declarations referenced in Document Number 69977.
DG2747DN-T1-E4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 600mOhm
- Channel-to-Channel Matching (ΔRon):
- 30mOhm (Max)
- Voltage - Supply, Single (V+):
- 1.6V ~ 4.3V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 25ns, 25ns
- -3db Bandwidth:
- 93MHz
- Charge Injection:
- 10pC
- Channel Capacitance (CS(off), CD(off)):
- 75pF, 55pF
- Current - Leakage (IS(off)) (Max):
- 2nA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-miniQFN (1.4x1.4)
DG2747DN-T1-E4 FAQ
1.How can I place an order for DG2747DN-T1-E4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2747DN-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 DG2747DN-T1-E4 reliable?
The price and inventory of DG2747DN-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 DG2747DN-T1-E4 is usually 5 days.
3.What payment methods are accepted for DG2747DN-T1-E4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2747DN-T1-E4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2747DN-T1-E4?
DG2747DN-T1-E4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2747DN-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 DG2747DN-T1-E4?
For technical support, including DG2747DN-T1-E4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2747DN-T1-E4 requirements.
6.How does Aetrix verify that DG2747DN-T1-E4 is sourced from the original manufacturer or authorized distributors?
All DG2747DN-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 DG2747DN-T1-E4 meets industry standards.
7.What is the process for return or replacement of DG2747DN-T1-E4?
All DG2747DN-T1-E4 units undergo pre-shipment inspection (PSI). If there is an issue with DG2747DN-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 DG2747DN-T1-E4 part is unused and in its original packaging.
Return procedure for DG2747DN-T1-E4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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