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Vishay Siliconix DG441DY-T1
- Part No.:
- DG441DY-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG441DY-T1.pdf
- Description:
- IC SWITCH SPST-NCX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,895
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Product details
Overview
DG441DY-T1 from Vishay Siliconix is a quad SPST analog switch with normally closed (NC) configuration, designed for high-speed, low-error analog and audio signal routing. It features 50 Ω typical on-resistance, 150 ns typical turn-on time, ±15 V dual-supply operation, and –1 pC charge injection-enabling precision sample-and-hold and battery-powered data acquisition systems.
For engineers reviewing the DG441DY-T1 datasheet, DG441DY-T1 pinout, DG441DY-T1 application, or DG441DY-T1 equivalent, key selection criteria include on-resistance matching (≤5 Ω), leakage current (<20 nA at full temp range), unipolar/bipolar supply flexibility, and SOIC-16 footprint compatibility with legacy DG201A/DG202 sockets.
Technical Context
The DG441DY-T1 implements four independent CMOS transmission gates fabricated on a high-voltage silicon-gate process with epitaxial latchup protection. Each switch supports bidirectional conduction when on and blocks signals up to ±15 V when off, with TTL/CMOS-compatible digital inputs (0.8 V low / 2.4 V high thresholds).
Its architecture minimizes charge injection (–1 pC) and off-capacitance (CD(off) = 4 pF, CS(off) = 4 pF), enabling low pedestal error in sample-and-hold circuits and <100 dB crosstalk at 1 MHz-critical for multi-channel instrumentation and automatic test equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V (full rail-to-rail switching with ±15 V supplies) |
| rDS(on) Typ. | 50 Ω (ensures minimal signal attenuation and gain error in precision amplifiers) |
| tON Typ. | 150 ns (supports >3 MHz sampling rates in data acquisition) |
| Charge Injection | –1 pC (reduces hold-mode voltage step error in sample-and-hold circuits) |
| ID(off) Max | 20 nA at full temperature range (maintains signal integrity in high-impedance sensor interfaces) |
| OIRR Min | 60 dB (limits channel-to-channel interference in multi-signal routing) |
| Supply Voltage Range | ±15 V or single 12 V (enables retrofit into legacy industrial and medical systems) |
Pinout & Package
Package: 16-pin narrow-body SOIC (SOIC-16N), 7.5 mm × 10.3 mm body, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | IN1–IN4 | Digital control inputs; active-high logic enables corresponding switch |
| 2, 6, 10, 14 | S1–S4 | Source terminals; NC configuration means connected to D when IN = high |
| 3, 7, 11, 15 | D1–D4 | Drain terminals; output side of each SPST switch |
| 4, 12 | V+ | Positive supply rail; must be ≥2 V above highest analog signal |
| 8 | V– | Negative supply rail; must be ≤2 V below lowest analog signal |
| 16 | GND | Analog/digital reference; separate ground return improves noise immunity |
| 11, 12 (NC) | No Connect | Internally unused; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Normally Closed (NC) Switching | Ensures default signal path continuity during power loss or logic reset-critical for fail-safe medical monitoring |
| Low On-Resistance Match | ≤5 Ω max mismatch between channels enables precise gain-setting resistor networks |
| Bidirectional Signal Routing | Supports equal performance for source-to-drain or drain-to-source signal flow-simplifies PCB layout in audio paths |
| Single-Supply Operation | Functions from 12 V only (V– = GND), eliminating need for negative rail in portable instrumentation |
| Latchup-Protected Process | Epitaxial isolation prevents destructive latchup under overvoltage transients-enhances field reliability |
Applications
| Audio Signal Routing | Data Acquisition Multiplexing |
|---|---|
Use Scenario: Selecting between multiple microphone inputs in a studio mixer while preserving wideband fidelity. IC Role / Device Role / Timing Role: Quad SPST analog switch providing low-distortion, low-crosstalk signal path selection. Use Value: 4 pF off-capacitance and <100 dB crosstalk at 1 MHz prevent inter-channel bleed and preserve SNR >95 dB. | Use Scenario: Scanning 16 sensor channels into a single ADC in an environmental monitoring node. IC Role / Device Role / Timing Role: Precision multiplexer stage with minimized charge injection to avoid hold-step errors. Use Value: –1 pC charge injection and 50 Ω rDS(on) ensure <0.01% gain error and sub-LSB settling in 16-bit systems. |
| Medical Sample-and-Hold | Battery-Powered Instrumentation |
Use Scenario: Capturing ECG waveform segments with minimal pedestal shift between sample and hold phases. IC Role / Device Role / Timing Role: Normally closed switch isolating op-amp input during hold phase to prevent droop. Use Value: NC topology maintains default connection; –1 pC injection reduces hold-mode voltage error to <10 µV. | Use Scenario: Power-gating analog front-end sections in a handheld multimeter to extend battery life. IC Role / Device Role / Timing Role: Low-leakage analog switch enabling <20 nA off-state current to minimize standby drain. Use Value: 0.2 mW typical power consumption and 20 nA ID(off) maximize runtime on coin-cell batteries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4618ESE+ | Higher on-resistance (100 Ω typ.), no NC function (NO only), 16-pin SOIC package | Requires redesign for NC functionality; suitable only where default-open behavior is acceptable | Select when cost sensitivity outweighs NC requirement and higher rDS(on) is tolerable |
| ADG441BRZ | Same NC function, 44 Ω rDS(on), but requires minimum 5 V supply (no 3 V operation) | Not compatible with 3 V logic systems; identical pinout but different supply constraints | Prefer for higher-precision designs needing lower on-resistance, provided system uses ≥5 V rails |
Compared with MAX4618ESE+ and ADG441BRZ, the DG441DY-T1 uniquely combines NC topology, 50 Ω on-resistance, and ±15 V/12 V dual/unipolar support-making it the only drop-in replacement for DG201A-based sockets requiring fail-safe continuity.
Availability
DG441DY-T1 is available at Aetrix Electronics and suitable for audio switching, data acquisition multiplexing, and medical sample-and-hold circuits requiring stable component supply across industrial temperature ranges.
Supply support for DG441DY-T1 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, analog switches, and high-reliability power components.
The DG441DY-T1 belongs to Vishay's precision analog switch product line, engineered for upgrade compatibility with legacy DG201A/DG202 sockets in high-reliability instrumentation, medical, and aerospace systems.
FAQ
What is the maximum analog signal voltage range supported by the DG441DY-T1?
The DG441DY-T1 supports analog signals from V– to V+, with absolute maximum ratings of ±44 V across V+ to V– and ±25 V across GND to V–. Under standard ±15 V operation, the full analog signal range is ±15 V, enabling rail-to-rail switching without clipping in bipolar systems. This range is confirmed in the Vishay S-20147 Rev. H datasheet, Figure 1 and Absolute Maximum Ratings table.
Does the DG441DY-T1 require external pull-up resistors on its digital inputs?
No, the DG441DY-T1 does not require external pull-up resistors. Its digital inputs are TTL/CMOS-compatible with guaranteed logic thresholds of 0.8 V (low) and 2.4 V (high), and input currents are specified at ±500 nA across temperature. The device draws negligible static current on INx pins, allowing direct connection to microcontroller GPIO or FPGA outputs without additional biasing components.
Can the DG441DY-T1 operate from a single 5 V supply?
No, the DG441DY-T1 cannot operate reliably from a single 5 V supply. The datasheet specifies minimum operating conditions of V+ = 10.8 V (for 12 V nominal) or ±13.5 V (for ±15 V nominal). At 5 V, rDS(on) exceeds 200 Ω and switching times degrade significantly-violating functional specs. For 5 V systems, consider the ADG441BRZ or MAX4618ESE+ instead.
How does the "normally closed" (NC) function of the DG441DY-T1 behave during power-down?
During power-down (V+ and V– = 0 V), the DG441DY-T1's NC switches remain conductive-maintaining continuity between Sx and Dx terminals-as long as analog signal voltages stay within the diode clamp range (V– –2 V to V+ +2 V). This fail-safe behavior is intrinsic to its internal transistor structure and is documented in the Functional Description section of the DG441/442 datasheet.
Is the DG441DY-T1 pin-compatible with the through-hole DG441DJ version?
Yes, the DG441DY-T1 is pin-compatible with the DG441DJ. Both share identical 16-pin DIP/SOIC pinouts, including IN1–IN4, S1–S4, D1–D4, V+, V–, GND, and NC placements. The only differences are package type (SOIC-16N vs. PDIP-16) and thermal characteristics-allowing direct PCB footprint substitution without schematic changes.
DG441DY-T1 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:
- 4
- On-State Resistance (Max):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- 4Ohm (Max)
- Voltage - Supply, Single (V+):
- 12V
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 220ns, 120ns
- -3db Bandwidth:
- -
- Charge Injection:
- -1pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 4pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -100dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG441DY-T1 FAQ
1.How can I place an order for DG441DY-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG441DY-T1 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 DG441DY-T1 reliable?
The price and inventory of DG441DY-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG441DY-T1 is usually 5 days.
3.What payment methods are accepted for DG441DY-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG441DY-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG441DY-T1?
DG441DY-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG441DY-T1 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 DG441DY-T1?
For technical support, including DG441DY-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG441DY-T1 requirements.
6.How does Aetrix verify that DG441DY-T1 is sourced from the original manufacturer or authorized distributors?
All DG441DY-T1 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 DG441DY-T1 meets industry standards.
7.What is the process for return or replacement of DG441DY-T1?
All DG441DY-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG441DY-T1, 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 DG441DY-T1 part is unused and in its original packaging.
Return procedure for DG441DY-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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