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Vishay Siliconix DG3257DN-T1-GE4
- Part No.:
- DG3257DN-T1-GE4
- Manufacturer:
- Vishay Siliconix
- Package:
- 6-XFDFN
- Datasheet:
-
DG3257DN-T1-GE4.pdf
- Description:
- IC SWITCH SPDT X 1 6OHM 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:10,589
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Product details
Overview
DG3257DN-T1-GE4 from Vishay Siliconix is a single-pole double-throw (SPDT) analog switch IC optimized for high-speed signal routing in portable mixed-signal systems. It delivers 5 Ω typical on-resistance at 4.2 V, 700 MHz –3 dB bandwidth with 5 pF load, –33 dB off-isolation, and operates from 1.65 V to 5.5 V - enabling direct interface with single-cell Li-ion batteries and low-voltage MCUs in smartphone front-end switching.
For engineers reviewing the DG3257DN-T1-GE4 datasheet, DG3257DN-T1-GE4 pinout, DG3257DN-T1-GE4 application, or DG3257DN-T1-GE4 equivalent, key selection criteria include its μDFN-6L package footprint, break-before-make timing, charge injection (4 pC), and guaranteed 1.4 V logic-high threshold for 3 V/1.8 V system compatibility.
Technical Context
The DG3257DN-T1-GE4 implements a CMOS transmission-gate SPDT architecture with sub-micron process technology to minimize parasitic capacitance (9 pF on-capacitance, 3 pF off-capacitance) and phase distortion across bidirectional signal paths. Its control logic accepts TTL/CMOS-compatible inputs with 1.4 V minimum high-threshold at 5 V supply, supporting direct drive from low-voltage microcontrollers.
On-chip power-down protection activates when V+ drops to 0 V, limiting leakage to 1 μA max while maintaining fault tolerance. The device guarantees latch-up immunity per JESD78 (300 mA) and ESD robustness of 6 kV HBM / 1 kV CDM, making it suitable for handheld consumer interfaces exposed to handling stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 1.65 V to 5.5 V single supply - supports direct operation from 1-cell Li-ion (3.0–4.2 V) without level-shifting. |
| RON (typ) | 5 Ω at V+ = 4.2 V, IS = ±8 mA - enables low insertion loss in RF/analog signal paths up to 700 MHz. |
| –3 dB Bandwidth | 714 MHz (typ) with 5 pF load - preserves signal integrity for high-definition audio, camera sensor data, and USB 2.0 switching. |
| Off-Isolation | –33 dB (typ) at 240 MHz - suppresses crosstalk between NC/NO paths in multi-channel audio or sensor multiplexing. |
| Charge Injection | 4 pC (typ) - minimizes voltage glitch during switching in precision ADC/DAC sample-hold circuits. |
| Logic Threshold | VINH ≥ 1.4 V (min) at V+ = 5 V - ensures reliable activation from 1.8 V GPIOs without external translators. |
| ESD Rating | 6 kV HBM, 1 kV CDM - meets IEC 61000-4-2 Level 4 requirements for end-user portable equipment. |
Pinout & Package
Packaged in ultra-compact μDFN-6L (1 mm × 1 mm, 0.3 mm height), the DG3257DN-T1-GE4 uses nickel-palladium-gold terminations compliant with JEDEC reflow and MSL-1 standards. Pin 1 is marked by indentation on top surface; thermal resistance is 407 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Digital control input | Active-high logic select: IN = HIGH connects COM to NO; IN = LOW connects COM to NC. |
| 2 (GND) | Power ground reference | Return path for analog and digital currents; must be low-impedance connection to minimize noise coupling. |
| 3 (V+) | Positive supply rail | Single supply input (1.65–5.5 V); powers analog switch core and internal protection circuitry. |
| 4 (NC) | Normally closed analog port | Analog terminal connected to COM when IN = LOW; rated for ±50 mA continuous current. |
| 5 (COM) | Common analog port | Central bidirectional signal node; supports full rail-to-rail analog swing up to V+. |
| 6 (NO) | Normally open analog port | Analog terminal connected to COM when IN = HIGH; shares same voltage/current ratings as NC. |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guarantees <2 ns minimum open interval (tOPEN) to prevent signal shorting during state transitions. |
| Signal swing beyond V+ | Supports analog signals up to (VS – 0.6 V)/120 Ω current limit - enables overvoltage-tolerant sensor interfacing. |
| Power-down protection | Automatically disables switch and limits GND leakage to 1 μA when V+ = 0 V - prevents back-powering in battery-disconnected states. |
| Low THD + N | 0.025 % (typ) at 20 Hz–20 kHz - maintains fidelity in audio line-level and headset switching applications. |
| Ultra-small footprint | μDFN-6L (1 mm × 1 mm) saves >60 % board area vs. comparable SC-70 or SOT-363 packages - critical for slim smartphone bezels. |
Applications
| Smartphone Front-End Switching | High-Speed Camera Interface |
|---|---|
Use Scenario: Routing microphone, speaker, and headset signals between baseband processor and audio codec in space-constrained mobile handsets. IC Role / Device Role / Timing Role: SPDT analog switch managing bidirectional audio paths with minimal distortion and zero DC offset. Use Value: 5 Ω RON and 0.025 % THD+N preserve SNR >95 dB; μDFN-6L enables placement adjacent to connectors without sacrificing PCB real estate. | Use Scenario: Multiplexing parallel MIPI CSI-2 data lanes from dual rear cameras into a single image signal processor input. IC Role / Device Role / Timing Role: High-bandwidth analog switch providing 714 MHz –3 dB bandwidth to maintain eye diagram integrity at 1.5 Gbps. Use Value: –33 dB off-isolation prevents crosstalk-induced pixel noise; 4 pC charge injection avoids image sensor reset glitches. |
| Wearable Biometric Sensing | Portable Healthcare Signal Conditioning |
Use Scenario: Selecting between ECG, PPG, and temperature sensor inputs feeding a shared ADC in fitness trackers. IC Role / Device Role / Timing Role: Low-leakage (±20 nA max) SPDT switch enabling precise DC-coupled physiological signal acquisition. Use Value: 1.65 V min. supply allows operation from coin-cell batteries; 3 pF off-capacitance minimizes settling time in high-impedance sensor nodes. | Use Scenario: Isolating diagnostic sensor channels (e.g., pulse oximetry, blood glucose) during calibration or fault detection in handheld medical devices. IC Role / Device Role / Timing Role: Fault-protected analog switch with power-down mode that blocks signal paths when main supply fails. Use Value: Power-down protection limits leakage to 1 μA at V+ = 0 V, preventing unintended sensor biasing during battery swap or shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMUX1574RSVR | Higher RON (7.5 Ω typ), lower bandwidth (300 MHz), but supports 1.08–5.5 V supply and offers 1.8 V logic compatibility without level shifters. | Better suited for ultra-low-voltage IoT sensor hubs where bandwidth <300 MHz suffices and supply may dip below 1.65 V. | Select TMUX1574RSVR if operating below 1.65 V or requiring guaranteed 1.8 V logic compatibility without external translation. |
| ADG779BRMZ-REEL7 | Lower bandwidth (200 MHz), higher RON (6.5 Ω typ), but features 1.8 V logic threshold and superior THD+N (0.005 %) for precision audio. | Ideal for battery-powered medical audio recorders where harmonic distortion matters more than RF bandwidth. | Choose ADG779BRMZ-REEL7 when THD+N <0.01 % is mandatory and bandwidth demand is ≤200 MHz. |
Compared with TMUX1574RSVR and ADG779BRMZ-REEL7, the DG3257DN-T1-GE4 uniquely balances 700 MHz bandwidth, 5 Ω RON, and μDFN-6L size - making it optimal for space-constrained, high-fidelity portable signal routing where both speed and compactness are non-negotiable.
Availability
DG3257DN-T1-GE4 is available at Aetrix Electronics and suitable for smartphone front-end switching, high-speed camera interface, and wearable biometric sensing requiring stable component supply across high-volume consumer electronics programs.
Supply support for DG3257DN-T1-GE4 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 switches, MOSFETs, and precision resistors for demanding industrial and consumer applications.
The DG3257DN-T1-GE4 belongs to Vishay's high-bandwidth analog switch product line, engineered specifically for portable mixed-signal systems where miniaturization, low distortion, and robust ESD performance are essential design constraints.
FAQ
What is the maximum analog signal voltage range supported by the DG3257DN-T1-GE4?
The DG3257DN-T1-GE4 supports an analog signal range from 0 V to 5.5 V, fully rail-to-rail relative to its V+ supply. When V+ = 5.5 V, signals can swing from GND to 5.5 V; when V+ = 1.8 V, the range is 0 V to 1.8 V. This allows seamless integration with diverse sensor and codec interfaces without external clamping or level-shifting circuitry.
Does the DG3257DN-T1-GE4 require external pull-up or pull-down resistors on the IN pin?
No, the DG3257DN-T1-GE4 does not require external pull-up or pull-down resistors on the IN pin. Its TTL/CMOS-compatible input has guaranteed logic thresholds (VINH ≥ 1.4 V at V+ = 5 V, VINL ≤ 0.5 V), and input leakage is only 0.23 μA max - allowing direct connection to MCU GPIOs or FPGA outputs without additional biasing components.
Can the DG3257DN-T1-GE4 handle analog signals exceeding its V+ supply voltage?
Yes, the DG3257DN-T1-GE4 supports analog signals that exceed V+, with current limited to typically (VS – 0.6 V)/120 Ω. For example, with V+ = 3.3 V and a 5 V input signal, the resulting current is ~14 mA - within the ±50 mA continuous rating. This capability simplifies interfacing with legacy sensors or external sources operating at higher voltages.
What is the thermal performance of the DG3257DN-T1-GE4 in its μDFN-6L package?
The DG3257DN-T1-GE4 has a junction-to-ambient thermal resistance (θJA) of 407 °C/W in the μDFN-6L package. Under typical conditions (IS = ±8 mA, RON = 5 Ω), power dissipation remains below 320 μW, resulting in negligible temperature rise (<0.13 °C) - eliminating need for thermal vias or copper pours in most portable designs.
Is the DG3257DN-T1-GE4 RoHS-compliant and lead-free?
Yes, the DG3257DN-T1-GE4 is fully RoHS-compliant and lead-free. The "-GE4" suffix explicitly denotes nickel-palladium-gold (NiPdAu) termination, meeting all JEDEC standards for reflow soldering and MSL-1 moisture sensitivity. Vishay Siliconix confirms full compliance per EU Directive 2011/65/EU and exemptions under Annex III.
DG3257DN-T1-GE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 6Ohm
- Channel-to-Channel Matching (ΔRon):
- 600mOhm
- Voltage - Supply, Single (V+):
- 1.65V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 50ns, 45ns
- -3db Bandwidth:
- 714MHz
- Charge Injection:
- 4pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 9pF
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -32dB @ 240MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-µDFN (1x1)
DG3257DN-T1-GE4 FAQ
1.How can I place an order for DG3257DN-T1-GE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG3257DN-T1-GE4 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 DG3257DN-T1-GE4 reliable?
The price and inventory of DG3257DN-T1-GE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG3257DN-T1-GE4 is usually 5 days.
3.What payment methods are accepted for DG3257DN-T1-GE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG3257DN-T1-GE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG3257DN-T1-GE4?
DG3257DN-T1-GE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG3257DN-T1-GE4 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 DG3257DN-T1-GE4?
For technical support, including DG3257DN-T1-GE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG3257DN-T1-GE4 requirements.
6.How does Aetrix verify that DG3257DN-T1-GE4 is sourced from the original manufacturer or authorized distributors?
All DG3257DN-T1-GE4 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 DG3257DN-T1-GE4 meets industry standards.
7.What is the process for return or replacement of DG3257DN-T1-GE4?
All DG3257DN-T1-GE4 units undergo pre-shipment inspection (PSI). If there is an issue with DG3257DN-T1-GE4, 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 DG3257DN-T1-GE4 part is unused and in its original packaging.
Return procedure for DG3257DN-T1-GE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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