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Vishay Siliconix DG2727DN-T1-E4
- Part No.:
- DG2727DN-T1-E4
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-UFQFN
- Datasheet:
-
DG2727DN-T1-E4.pdf
- Description:
- IC SWTICH DUAL SPST 8-MINIQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,348
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Product details
Overview
DG2727DN-T1-E4 from Vishay Siliconix is a dual single-pole single-throw (SPST) analog switch optimized for low-voltage, high-fidelity audio routing. It features 0.65 Ω typical on-resistance at 2.7 V, supports negative-swing signals down to V+ − 4.3 V, and delivers 0.006 % THD across 20 Hz–20 kHz-enabling clean signal switching in portable media players and cellular handsets.
For engineers reviewing the DG2727DN-T1-E4 datasheet, DG2727DN-T1-E4 pinout, DG2727DN-T1-E4 application, or DG2727DN-T1-E4 equivalent, key selection criteria include guaranteed 1.2 V logic-high threshold over 2.7–4.3 V supply, -76 dB off-isolation at 100 kHz, 252 MHz -3 dB bandwidth, and miniQFN-8L package compatibility with space-constrained PCB layouts.
Technical Context
The DG2727DN-T1-E4 implements two independent SPST switches using sub-micron CMOS process technology, enabling rail-to-rail analog signal handling with negative swing capability. Its control inputs tolerate voltages up to 4.3 V regardless of V+, and logic thresholds are guaranteed across 1.6–4.3 V supply range.
Each switch exhibits matched on-resistance (ΔRON ≤ 0.1 Ω) and flatness (RON flatness ≤ 0.2 Ω), critical for low-distortion audio paths. Dynamic performance includes 38 ns turn-on time and 14 ns turn-off time at 3 V, with charge injection limited to 1.2 pC-minimizing transient glitches in precision signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 0.65 Ω typical at 2.7 V - ensures minimal insertion loss and voltage drop in audio and data paths |
| Analog Signal Range | V+ − 4.3 V to V+ - enables true AC-coupled audio signals to swing below ground without clipping |
| THD | 0.006 % at 20 Hz–20 kHz - preserves audio fidelity in portable playback and recording systems |
| Off-Isolation | −76 dB at 100 kHz - suppresses crosstalk between active and inactive channels in multi-source routing |
| −3 dB Bandwidth | 252 MHz - supports high-speed data acquisition and video signal switching beyond baseband |
| Logic High Threshold | 1.2 V guaranteed at V+ = 2.7–4.3 V - ensures reliable interface with 1.8 V and 2.5 V digital controllers |
| Supply Voltage Range | 1.6 V to 4.3 V - accommodates single-cell Li-ion, coin-cell, and regulated low-voltage rails |
Pinout & Package
The DG2727DN-T1-E4 is housed in a miniQFN-8L package (1.4 mm × 1.4 mm × 0.55 mm) with wettable flank leads for automated optical inspection. Pin 1 is marked with "Gx" (date/lot code); the exposed thermal pad is electrically connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for analog and digital domains; connects to thermal pad |
| 2 | V+ | Positive supply rail (1.6–4.3 V); powers internal CMOS switch core and level-shifting logic |
| 3 | IN1 | Control input for Switch 1; active-high logic with 1.2 V min threshold at V+ ≥ 2.7 V |
| 4 | IN2 | Control input for Switch 2; identical logic behavior to IN1, fully independent |
| 5 | D1 | Drain terminal of Switch 1; bidirectional analog path with 31 pF off-capacitance |
| 6 | S1 | Source terminal of Switch 1; connects to D1 when IN1 = high; supports ±300 mA continuous current |
| 7 | D2 | Drain terminal of Switch 2; isolated from D1 with −82 dB crosstalk at 100 kHz |
| 8 | S2 | Source terminal of Switch 2; independent signal path; same RON and THD specs as S1/D1 |
Key Features
| Feature | Design Value |
|---|---|
| Negative-swing capable analog path | Supports signals down to V+ − 4.3 V - eliminates need for DC biasing in AC-coupled audio interfaces |
| Ultra-low on-resistance flatness | 0.2 Ω max variation over full analog voltage range - maintains consistent gain and linearity across signal swing |
| Low charge injection | 1.2 pC typical - minimizes voltage transients at switched nodes, critical for sample-and-hold and multiplexer accuracy |
| High off-isolation & low crosstalk | −76 dB off-isolation / −82 dB crosstalk at 100 kHz - prevents signal leakage between channels in multi-input systems |
| Halogen-free & RoHS-compliant | Meets JEDEC JS709A halogen-free standard and EU Directive 2011/65/EU - satisfies environmental compliance for global shipments |
Applications
| Cellular Handset Audio Routing | Portable Media Player Signal Switching |
|---|---|
|
Use Scenario: Routing microphone, earpiece, speaker, and headset signals within tight board space and strict power budgets. IC Role / Device Role / Timing Role: Dual SPST analog switch managing bidirectional audio paths with zero DC bias requirement. Use Value: Enables true AC-coupled switching without external op-amps or level shifters, reducing BOM count and PCB area by >30 % versus discrete solutions. |
Use Scenario: Selecting between internal DAC output and external line-in for recording/playback functions in MP3 players and Bluetooth speakers. IC Role / Device Role / Timing Role: Low-THD analog switch providing channel isolation during source transitions. Use Value: 0.006 % THD and 252 MHz bandwidth preserve full audio spectrum integrity while supporting auxiliary digital audio formats up to 24-bit/96 kHz. |
| Medical Sensor Multiplexing | Low-Voltage Data Acquisition Front-End |
|
Use Scenario: Scanning multiple biopotential electrodes (ECG, EEG) into a shared ADC channel with minimal signal degradation. IC Role / Device Role / Timing Role: Precision analog multiplexer switch with matched RON and low charge injection. Use Value: ΔRON ≤ 0.1 Ω and 1.2 pC charge injection prevent baseline drift and settling errors, improving diagnostic accuracy in battery-powered monitors. |
Use Scenario: Conditioning and routing sensor outputs (thermocouples, RTDs, strain gauges) in handheld test equipment operating from 2.7 V supplies. IC Role / Device Role / Timing Role: Low-noise, low-leakage analog switch interfacing high-impedance sources to instrumentation amplifiers. Use Value: ±100 nA max off-leakage and 31 pF off-capacitance minimize loading effects and maintain >12-bit effective resolution at sampling rates up to 1 MSPS. |
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 TMUX1574RTER | 0.5 Ω on-resistance at 3.3 V; 1.8 V logic-compatible; no negative-swing support (VSS = GND only) | Limited to unipolar signal routing; requires external biasing for AC-coupled audio | Preferred when system uses 3.3 V logic and analog signals stay above GND |
| Analog Devices ADG821BRMZ-REEL7 | 0.55 Ω on-resistance at 3 V; −40 °C to +125 °C rating; 1.65 V logic threshold minimum | Broad temperature range suits industrial sensors; higher leakage (±500 nA) vs. DG2727DN-T1-E4 (±100 nA) | Chosen for extended-temp environments where ultra-low leakage is secondary to thermal robustness |
Compared with TMUX1574RTER and ADG821BRMZ-REEL7, the DG2727DN-T1-E4 uniquely combines negative-swing capability, 0.006 % THD, and 1.2 V logic threshold in a 1.4 mm² footprint-making it optimal for space-constrained, battery-powered audio and medical devices requiring ground-referenced AC coupling.
Availability
DG2727DN-T1-E4 is available at Aetrix Electronics and suitable for cellular handsets, portable media players, and low-voltage data-acquisition circuits requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DG2727DN-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 leader in discrete semiconductors and passive components, specializing in high-performance analog switching, power management, and sensing technologies.
The DG2727DN-T1-E4 belongs to Vishay's low-voltage analog switch product line, engineered specifically for portable and battery-powered systems demanding ultra-small size, low distortion, and rail-to-rail signal handling.
FAQ
What is the maximum analog signal voltage range supported by the DG2727DN-T1-E4?
The DG2727DN-T1-E4 supports analog signals from V+ − 4.3 V to V+, enabling true negative-swing operation without external biasing. At V+ = 3.0 V, this translates to −1.3 V to +3.0 V. This specification is confirmed in the Absolute Maximum Ratings and Analog Signal Range parameter table of the DG2727DN-T1-E4 datasheet (Document Number: 69049, Rev. A).
Does the DG2727DN-T1-E4 require a negative supply rail to handle signals below ground?
No, the DG2727DN-T1-E4 does not require a negative supply rail. Its architecture allows analog signals to swing below GND down to V+ − 4.3 V using only a single positive supply (1.6–4.3 V). This eliminates the need for dual-rail supplies or level-shifting circuitry in AC-coupled audio and sensor applications.
What is the guaranteed logic high input voltage threshold for DG2727DN-T1-E4 at 2.7 V supply?
The DG2727DN-T1-E4 guarantees a logic high input threshold (VINH) of 1.2 V when V+ is between 2.7 V and 4.3 V. This is explicitly specified in the Digital Control section of the DG2727DN-T1-E4 datasheet and ensures reliable interfacing with 1.8 V I/O microcontrollers and baseband processors.
How does the DG2727DN-T1-E4 compare to DG2728DN-T1-E4 and DG2729DN-T1-E4 in functionality?
The DG2727DN-T1-E4 is a dual SPST switch with independent IN1/IN2 controls. DG2728DN-T1-E4 is an inverting dual SPST (active-low logic), and DG2729DN-T1-E4 adds break-before-make timing (2–14 ns) for sequential channel switching. All three share identical analog specs, package, and temperature range-but differ strictly in control logic polarity and switching sequence behavior.
Is the thermal pad on the DG2727DN-T1-E4 miniQFN-8L package electrically connected?
Yes, the exposed thermal pad on the DG2727DN-T1-E4 miniQFN-8L package is electrically connected to GND (Pin 1). The datasheet's Package Information section (Document Number: 68674) and recommended PCB layout confirm that the pad must be soldered to a GND plane for optimal thermal performance and EMI suppression.
DG2727DN-T1-E4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Cut Tape (CT)
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-miniQFN (1.4x1.4)
DG2727DN-T1-E4 FAQ
1.How can I place an order for DG2727DN-T1-E4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2727DN-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 DG2727DN-T1-E4 reliable?
The price and inventory of DG2727DN-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 DG2727DN-T1-E4 is usually 5 days.
3.What payment methods are accepted for DG2727DN-T1-E4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2727DN-T1-E4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2727DN-T1-E4?
DG2727DN-T1-E4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2727DN-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 DG2727DN-T1-E4?
For technical support, including DG2727DN-T1-E4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2727DN-T1-E4 requirements.
6.How does Aetrix verify that DG2727DN-T1-E4 is sourced from the original manufacturer or authorized distributors?
All DG2727DN-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 DG2727DN-T1-E4 meets industry standards.
7.What is the process for return or replacement of DG2727DN-T1-E4?
All DG2727DN-T1-E4 units undergo pre-shipment inspection (PSI). If there is an issue with DG2727DN-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 DG2727DN-T1-E4 part is unused and in its original packaging.
Return procedure for DG2727DN-T1-E4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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