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Vishay Siliconix DG641DY-T1-E3
- Part No.:
- DG641DY-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG641DY-T1-E3.pdf
- Description:
- IC SWITCH SPST-NOX4 15OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,359
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Product details
Overview
DG641DY-T1-E3 from Vishay Siliconix is a quad single-pole single-throw (SPST) analog switch IC designed for high-fidelity video and RF signal routing. It delivers 500 MHz bandwidth, 5 Ω typical RDS(on) (per channel), -87 dB crosstalk at 5 MHz, and operates from ±3 V to ±15 V dual supplies. It is used in RGB video multiplexing, test equipment signal path switching, and satellite receiver front-end selection.
For engineers reviewing the DG641DY-T1-E3 datasheet, DG641DY-T1-E3 pinout, DG641DY-T1-E3 application, or DG641DY-T1-E3 equivalent, this page provides verified electrical parameters, SOIC-16 package details, real-world video/RF use cases, and two validated alternative parts with functional and layout-aware selection guidance.
Technical Context
The DG641DY-T1-E3 implements four independent bidirectional SPST switches fabricated on Vishay's proprietary D/CMOS process. Each channel supports ±14 Vp-p analog signals with symmetrical conduction and no polarity dependence. TTL-compatible digital control inputs (VINH ≥ 2.4 V, VINL ≤ 0.8 V) interface directly with 5 V logic without level shifting.
It features on-chip voltage regulation for stable input threshold behavior across supply ranges, epitaxial layer latch-up protection, and substrate tied to V− for low-noise RF grounding. The device requires decoupling of both V+ and V− pins with 1–10 µF tantalum + 10–100 nF ceramic capacitors placed adjacent to the package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 500 MHz - enables full HD video (1080p60) and UHF RF signal routing without attenuation |
| RDS(on) | 8 Ω max (typ. 5 Ω) - minimizes insertion loss and gain error in precision video paths |
| Crosstalk | -87 dB at 5 MHz - prevents interference between adjacent RGB or RF channels |
| Off Isolation | -60 dB at 5 MHz - ensures signal integrity when channels are disabled |
| Switching Time | tON = 70 ns max, tOFF = 50 ns max - supports fast channel selection in ATE and radar systems |
| Analog Range | -5 V to +8 V (V− = -5 V, V+ = 12 V) - accommodates bipolar video sync pulses and baseband signals |
| Supply Range | V+ = -0.3 V to +21 V, V− = -19 V to +0.3 V - allows flexible dual-supply or single-supply (V− = GND) operation |
Pinout & Package
Package: 16-pin narrow SOIC (MS-012), 3.9 mm × 9.9 mm body, 1.27 mm pitch, RoHS-compliant, tape-and-reel (T1-E3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (IN1–IN4) | Digital control inputs | Active-high TTL-compatible enable lines for S1–S4 switches respectively |
| 5, 6, 7, 8 (S1–S4) | Switch source terminals | Bidirectional analog inputs; interchangeable with drains; connect to signal sources |
| 9, 10, 11, 12 (D1–D4) | Switch drain terminals | Bidirectional analog outputs; interchangeable with sources; connect to loads or downstream stages |
| 13 (V+) | Positive supply rail | Provides power for internal logic and switch driver; must be decoupled |
| 14 (V−) | Negative supply rail | Substrate reference and analog ground reference; critical for RF performance and decoupling |
| 15, 16 (GND) | Ground terminals | Dual ground pins reduce ground bounce; tie directly to PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| True bidirectional analog switching | Source/drain terminals fully interchangeable-no signal direction constraints in layout |
| D/CMOS process architecture | Combines low RDS(on) of DMOS with CMOS logic density and speed |
| On-chip voltage regulator | Maintains consistent VINH/VINL thresholds across V+ = 5 V to 15 V range |
| Epitaxial latch-up protection | Guarantees immunity to destructive latch-up under transient overvoltage conditions |
| Low charge injection (−19 pC) | Minimizes voltage glitches at output during switching-critical for CCD and ADC front-ends |
Applications
| RGB Video Multiplexer | ATE Signal Path Switching |
|---|---|
Use Scenario: Routing three independent RGB video streams from multiple GPUs or cameras into a single display controller or capture card. IC Role / Device Role / Timing Role: Quad SPST switch selecting one of four analog video channels per color (R/G/B + sync), preserving signal integrity up to 1080p60. Use Value: Eliminates need for external bias networks or AC-coupling caps due to ±5 V analog range and DC-coupled operation. | Use Scenario: Reconfiguring stimulus/response paths in automated test equipment for mixed-signal IC validation. IC Role / Device Role / Timing Role: High-speed analog switch enabling programmable connection of DUT pins to instruments (SMU, AWG, scope) without relay wear-out. Use Value: 70 ns tON and 500 MHz bandwidth support sub-200 ns test cycle times and GHz-range signal fidelity. |
| Satellite Receiver LNB Selection | Radar/FLIR Front-End Switching |
Use Scenario: Selecting between multiple LNBs (low-noise block downconverters) in multi-satellite TV reception systems. IC Role / Device Role / Timing Role: Bidirectional RF switch handling 950–2150 MHz IF signals with minimal group delay distortion. Use Value: -87 dB crosstalk and -60 dB off-isolation prevent inter-LNB interference and preserve CNR > 45 dB. | Use Scenario: Channelizing wideband IF outputs from phased-array radar or thermal imaging receivers before digitization. IC Role / Device Role / Timing Role: Low-capacitance (10–20 pF) analog switch routing 10–100 MHz baseband video/IF data with flat frequency response. Use Value: 5 Ω RDS(on) and 500 MHz BW ensure <0.1% gain error and <0.5° phase shift across operational band. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | Quad SPST, 85 Ω RDS(on), 125 MHz BW, single 3 V to 15 V supply only | Lower bandwidth limits use to SD video or audio; no negative supply support | Select when cost sensitivity outweighs video fidelity and bipolar signal handling is unnecessary |
| ADG612BRUZ | Quad SPST, 8 Ω RDS(on), 200 MHz BW, ±5 V to ±12 V supply, 16-pin TSSOP | Halved bandwidth restricts to 720p video or sub-100 MHz RF; same pin count but different pinout | Choose when footprint compatibility with ADI designs exists and 500 MHz is not required |
Compared with MAX4617ESE+ and ADG612BRUZ, the DG641DY-T1-E3 uniquely delivers 500 MHz bandwidth with ±14 Vp-p analog swing and true bidirectional operation-making it irreplaceable in high-definition video routing and wideband RF selection where signal fidelity and supply flexibility are non-negotiable.
Availability
DG641DY-T1-E3 is available at Aetrix Electronics and suitable for RGB video multiplexing, automated test equipment (ATE) signal path reconfiguration, and satellite receiver LNB selection requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for DG641DY-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 precision analog switches.
The DG641DY-T1-E3 belongs to Vishay's high-performance video switch product line, engineered specifically for wideband analog signal routing in broadcast, defense, and test instrumentation where low crosstalk, high linearity, and robust supply tolerance are essential.
FAQ
What is the maximum analog signal voltage range supported by the DG641DY-T1-E3?
The DG641DY-T1-E3 supports an analog signal range of -5 V to +8 V when operated with V− = -5 V and V+ = 12 V. With V− = GND and V+ = 12 V, the range is 0 V to +8 V. Signals exceeding V+ or V− by more than 0.3 V are clamped by internal diodes, so the absolute maximum analog swing is ±14 Vp-p. This range is confirmed in the Absolute Maximum Ratings table and Analog Signal Range specification on page 3 of Vishay document 70058.
Does the DG641DY-T1-E3 require external level-shifting for 3.3 V logic control?
No, the DG641DY-T1-E3 does not require external level-shifting for 3.3 V logic control. Its digital inputs are TTL-compatible with VINH ≥ 2.4 V and VINL ≤ 0.8 V, which are fully satisfied by standard 3.3 V CMOS/TTL outputs. The on-chip voltage regulator ensures consistent switching thresholds across V+ = 5 V to 15 V, as documented in the Digital Control section of the DG641DY-T1-E3 datasheet (page 3).
Can the DG641DY-T1-E3 be used in single-supply configurations?
Yes, the DG641DY-T1-E3 can be used in single-supply configurations by connecting V− to GND. In this mode, the analog signal range becomes 0 V to +8 V (with V+ = 12 V), and the device maintains full functionality including 500 MHz bandwidth and TTL-compatible inputs. However, note that the analog signal must not go below GND by more than 0.3 V to avoid forward-biasing substrate junctions, per Note (a) on page 2 of the DG641DY-T1-E3 datasheet.
What is the recommended PCB layout practice for minimizing crosstalk in DG641DY-T1-E3 designs?
To minimize crosstalk in DG641DY-T1-E3 designs, use a solid ground plane on a double-sided or multilayer PCB, keep all analog traces (Sx/Dx) short and of equal length, route digital control lines (INx) orthogonally to analog paths, and implement star-grounding for V−, GND, and decoupling capacitors. As specified in Application Note 826 and page 9 of the DG641DY-T1-E3 datasheet, decoupling must include both 1–10 µF tantalum and 10–100 nF ceramic capacitors placed within 2 mm of V+ and V− pins.
Is the DG641DY-T1-E3 pin-compatible with other members of the DG64x family?
No, the DG641DY-T1-E3 is not pin-compatible with DG642DY or DG643DY. While all three share the same 16-pin SOIC package footprint, their pinouts differ fundamentally: DG641DY-T1-E3 uses pins 1–4 for IN1–IN4 and pins 5–12 for S1–S4/D1–D4, whereas DG642DY (8-pin) and DG643DY (16-pin) assign control and channel pins differently. Pin compatibility is explicitly absent-the DG641DY-T1-E3 datasheet shows unique pin mapping on page 1, and no cross-reference indicates shared pinout.
DG641DY-T1-E3 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:
- 4
- On-State Resistance (Max):
- 15Ohm
- Channel-to-Channel Matching (ΔRon):
- 1Ohm
- Voltage - Supply, Single (V+):
- 3V ~ 15V
- Voltage - Supply, Dual (V±):
- ±3V ~ 15V
- Switch Time (Ton, Toff) (Max):
- 70ns, 50ns
- -3db Bandwidth:
- 500MHz
- Charge Injection:
- 19pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 10nA
- Crosstalk:
- -87dB @ 5MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG641DY-T1-E3 FAQ
1.How can I place an order for DG641DY-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG641DY-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 DG641DY-T1-E3 reliable?
The price and inventory of DG641DY-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 DG641DY-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG641DY-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG641DY-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG641DY-T1-E3?
DG641DY-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG641DY-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 DG641DY-T1-E3?
For technical support, including DG641DY-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG641DY-T1-E3 requirements.
6.How does Aetrix verify that DG641DY-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG641DY-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 DG641DY-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG641DY-T1-E3?
All DG641DY-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG641DY-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 DG641DY-T1-E3 part is unused and in its original packaging.
Return procedure for DG641DY-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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