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Vishay Siliconix DG2728DN-T1-E4
- Part No.:
- DG2728DN-T1-E4
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-UFQFN
- Datasheet:
-
DG2728DN-T1-E4.pdf
- Description:
- IC SW SPST-NCX2 1OHM 8MINIQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,990
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Product details
Overview
DG2728DN-T1-E4 from Vishay Siliconix is a dual SPST analog switch optimized for low-voltage, high-fidelity audio routing in portable electronics. It features 0.65 Ω typical on-resistance at 2.7 V, supports analog signal swings down to V+ − 4.3 V (enabling negative-swing AC-coupled audio), and delivers 0.006 % THD across 20 Hz–20 kHz - making it suitable for cellular phone audio paths and GPS media player signal switching.
For engineers reviewing the DG2728DN-T1-E4 datasheet, DG2728DN-T1-E4 pinout, DG2728DN-T1-E4 application, or DG2728DN-T1-E4 equivalent, key selection criteria include guaranteed 1.2 V logic-high threshold across 2.7–4.3 V supply, -82 dB crosstalk at 100 kHz, 252 MHz -3 dB bandwidth, and miniQFN-8L package compatibility with space-constrained PCB layouts.
Technical Context
The DG2728DN-T1-E4 implements two independent single-pole single-throw (SPST) analog switches using sub-micron CMOS process technology. Each channel provides bidirectional signal routing with matched on-resistance (ΔRON ≤ 0.1 Ω) and flatness (RON flatness ≤ 0.2 Ω) over the full analog voltage range of V+ − 4.3 V to V+.
Its digital control interface accepts logic inputs up to 4.3 V regardless of V+, with guaranteed VIH = 1.2 V and VIL = 0.4 V at V+ = 2.7–4.3 V. The device achieves 38 ns turn-on and 14 ns turn-off times under 50 Ω/35 pF load conditions, and exhibits 1.2 pC charge injection - critical for minimizing glitch-induced distortion in precision audio paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (typ) | 0.65 Ω at V+ = 2.7 V - enables low insertion loss in audio and video signal chains |
| Signal swing range | V+ − 4.3 V to V+ - supports true AC-coupled audio with ground-referenced signals |
| THD | 0.006 % at 20 Hz–20 kHz - preserves high-fidelity audio integrity |
| Crosstalk | −82 dB at 100 kHz - prevents audible leakage between adjacent audio channels |
| Off-isolation | −76 dB at 100 kHz - ensures strong channel separation when switched off |
| −3 dB bandwidth | 252 MHz - supports high-speed data and video routing beyond audio applications |
| Logic VIH guarantee | 1.2 V min at V+ = 2.7–4.3 V - ensures reliable interfacing with 1.8 V and 2.5 V digital controllers |
Pinout & Package
The DG2728DN-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 and robust solder-joint reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground reference | Common return path for analog and digital circuitry; must be low-impedance connection |
| 2 (V+) | Positive supply rail | Single 1.6–4.3 V supply powering both analog and digital sections |
| 3 (IN1) | Channel 1 control input | Active-high logic input controlling S1–D1 switch state |
| 4 (IN2) | Channel 2 control input | Active-high logic input controlling S2–D2 switch state |
| 5 (D1) | Channel 1 drain terminal | Analog output node for first SPST switch; bidirectional signal path |
| 6 (S1) | Channel 1 source terminal | Analog input node for first SPST switch; bidirectional signal path |
| 7 (D2) | Channel 2 drain terminal | Analog output node for second SPST switch; bidirectional signal path |
| 8 (S2) | Channel 2 source terminal | Analog input node for second SPST switch; bidirectional signal path |
Key Features
| Feature | Design Value |
|---|---|
| Negative-swing capable analog path | Supports signals down to V+ − 4.3 V - eliminates need for external biasing in AC-coupled audio systems |
| Ultra-low THD | 0.006 % at 0.5 Vp-p, 20 Hz–20 kHz - meets high-end portable audio fidelity requirements |
| High-speed switching | 38 ns tON, 14 ns tOFF - enables fast multiplexing in data acquisition and video routing |
| Low charge injection | 1.2 pC - minimizes voltage glitches at switch transitions, reducing audible pop/click |
| ESD robustness | 8 kV HBM - enhances manufacturing yield and field reliability in handheld assembly environments |
Applications
| Cellular Phone Audio Routing | Portable Media Player Signal Switching |
|---|---|
Use Scenario: Routing microphone, earpiece, speaker, and headset signals within tight board space constraints. IC Role / Device Role / Timing Role: Dual SPST analog switch enabling dynamic reconfiguration of audio paths without DC blocking capacitors. Use Value: 0.65 Ω RON and 0.006 % THD preserve SNR and dynamic range; miniQFN-8L footprint saves >60 % area vs. SOIC-8 alternatives. | Use Scenario: Selecting between internal DAC output and external line-in for recording/playback functions. IC Role / Device Role / Timing Role: Low-distortion analog multiplexer handling bidirectional audio streams with ground-swing capability. Use Value: V+ − 4.3 V signal swing allows direct coupling to AC-coupled codecs; -82 dB crosstalk prevents channel bleed during stereo playback. |
| GPS Receiver Front-End Switching | Low-Voltage Data Acquisition Multiplexing |
Use Scenario: Isolating GPS antenna path from RF front-end during non-active states to reduce noise coupling. IC Role / Device Role / Timing Role: High-isolation SPST switch providing >76 dB off-state rejection at L1 band frequencies. Use Value: -76 dB off-isolation and 252 MHz bandwidth ensure minimal RF interference; 1.6–4.3 V operation matches GPS module supply rails. | Use Scenario: Multiplexing multiple sensor outputs (e.g., temperature, pressure, accelerometer) into a shared ADC input. IC Role / Device Role / Timing Role: Precision analog switch with matched RON (≤0.1 Ω) and low charge injection (1.2 pC) for accurate multi-channel sampling. Use Value: ΔRON matching minimizes gain error between channels; <100 nA off-leakage maintains sensor bias integrity during idle periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSM2728CDBVR | 0.75 Ω RON (typ), 0.012 % THD, -70 dB crosstalk at 100 kHz | Slightly higher distortion and lower isolation - acceptable for mid-tier audio but not premium voice capture | Lower cost; suitable where THD < 0.01 % and isolation > -70 dB suffice |
| MAX4680EUA+ | 0.9 Ω RON (typ), 0.02 % THD, -65 dB crosstalk, SO-8 package | Larger footprint, higher RON, and reduced isolation limit use in space-constrained, high-fidelity designs | Legacy-compatible replacement where miniQFN layout change is not feasible |
Compared with TSM2728CDBVR and MAX4680EUA+, the DG2728DN-T1-E4 delivers superior THD (0.006 %), tighter RON matching (≤0.1 Ω), and significantly better crosstalk (-82 dB), making it optimal for premium portable audio and precision multiplexing where signal integrity and board area are critical.
Availability
DG2728DN-T1-E4 is available at Aetrix Electronics and suitable for cellular phones, portable media players, and low-voltage data-acquisition circuits requiring stable component supply and long-term production continuity.
Supply support for DG2728DN-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, high-reliability solutions for demanding electronic systems.
The DG2728DN-T1-E4 belongs to Vishay's low-voltage analog switch product line, engineered specifically for battery-powered portable devices where ultra-low on-resistance, minimal distortion, and miniature packaging are essential design requirements.
FAQ
What is the maximum allowable analog signal voltage range for DG2728DN-T1-E4?
The DG2728DN-T1-E4 supports analog signals from V+ − 4.3 V to V+, enabling true negative-swing capability with single-supply operation. For example, at V+ = 3.0 V, the valid analog range is −1.3 V to +3.0 V. This eliminates the need for external level-shifting circuitry in AC-coupled audio applications and is confirmed in the Absolute Maximum Ratings and Analog Signal Range specifications of the DG2728DN-T1-E4 datasheet.
Does DG2728DN-T1-E4 support 1.8 V logic-level control inputs?
Yes, DG2728DN-T1-E4 guarantees logic-high recognition at VIH = 1.2 V minimum when V+ is between 2.7 V and 4.3 V, making it fully compatible with standard 1.8 V digital I/O. Its input structure tolerates control voltages up to 4.3 V independently of V+, allowing direct interfacing with mixed-voltage microcontrollers without level shifters - a key feature verified in the Digital Control section of the DG2728DN-T1-E4 specification table.
What is the thermal performance of DG2728DN-T1-E4 in its miniQFN-8L package?
The DG2728DN-T1-E4 in miniQFN-8L has a power dissipation rating of 190 mW at TA = 25 °C, with derating of 2.4 mW/°C above 70 °C. Its junction-to-ambient thermal resistance (θJA) is approximately 657 °C/W, consistent with the package's small footprint and exposed pad design. These values are specified in the Absolute Maximum Ratings table and validated across the −40 °C to +85 °C operating range for the DG2728DN-T1-E4.
How does DG2728DN-T1-E4 compare to DG2727DN-T1-E4 and DG2729DN-T1-E4 in functionality?
The DG2728DN-T1-E4 is functionally identical to DG2727DN-T1-E4 and DG2729DN-T1-E4 in on-resistance, bandwidth, THD, and package - all share the same die and electrical specs. Their only difference is truth table behavior: DG2728DN-T1-E4 uses active-high control (IN = HIGH → ON), while DG2727DN-T1-E4 is active-low and DG2729DN-T1-E4 adds break-before-make timing. This functional distinction is explicitly defined in the Truth Table section of the DG2728DN-T1-E4 datasheet.
Is DG2728DN-T1-E4 compliant with RoHS and halogen-free standards?
Yes, DG2728DN-T1-E4 is RoHS-compliant per Directive 2011/65/EU and halogen-free per JEDEC JS709A (equivalent to IEC 61249-2-21). These compliance statements are documented in the Features and Legal Disclaimer sections of the official DG2728DN-T1-E4 datasheet (Document Number: 69049), and verified through Vishay's material declarations and certification reports.
DG2728DN-T1-E4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 1Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 1.6V ~ 4.3V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 67ns, 40ns
- -3db Bandwidth:
- 252MHz
- Charge Injection:
- 1.2pC
- Channel Capacitance (CS(off), CD(off)):
- 31pF, 31pF
- Current - Leakage (IS(off)) (Max):
- 100nA
- Crosstalk:
- -64dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-miniQFN (1.4x1.4)
DG2728DN-T1-E4 FAQ
1.How can I place an order for DG2728DN-T1-E4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2728DN-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 DG2728DN-T1-E4 reliable?
The price and inventory of DG2728DN-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 DG2728DN-T1-E4 is usually 5 days.
3.What payment methods are accepted for DG2728DN-T1-E4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2728DN-T1-E4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2728DN-T1-E4?
DG2728DN-T1-E4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2728DN-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 DG2728DN-T1-E4?
For technical support, including DG2728DN-T1-E4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2728DN-T1-E4 requirements.
6.How does Aetrix verify that DG2728DN-T1-E4 is sourced from the original manufacturer or authorized distributors?
All DG2728DN-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 DG2728DN-T1-E4 meets industry standards.
7.What is the process for return or replacement of DG2728DN-T1-E4?
All DG2728DN-T1-E4 units undergo pre-shipment inspection (PSI). If there is an issue with DG2728DN-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 DG2728DN-T1-E4 part is unused and in its original packaging.
Return procedure for DG2728DN-T1-E4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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