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Vishay Siliconix DG401DY-T1
- Part No.:
- DG401DY-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG401DY-T1.pdf
- Description:
- IC SWITCH SPST-NOX2 45OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,027
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Product details
Overview
DG401DY-T1 from Vishay Siliconix is a dual SPST monolithic CMOS analog switch optimized for precision signal routing in low-power, high-speed applications. It delivers 30 Ω typical on-resistance, ±15 V analog signal range, and 75 ns turn-on time with 0.35 µW typical power dissipation-enabling battery-powered audio switching and sample-and-hold circuits requiring rail-to-rail analog fidelity.
For engineers reviewing the DG401DY-T1 datasheet, DG401DY-T1 pinout, DG401DY-T1 application, or DG401DY-T1 equivalent, key selection criteria include guaranteed break-before-make timing, ultra-low 40 pA channel-on leakage, TTL/CMOS logic compatibility, and SOIC-16 packaging suitable for space-constrained industrial instrumentation and portable test equipment.
Technical Context
The DG401DY-T1 implements two independent single-pole single-throw (SPST) switches fabricated using Vishay's high-voltage silicon-gate process, supporting up to ±15 V analog signals across a 44 V supply rating. Each switch exhibits bidirectional conduction when on and blocks up to 30 V peak-to-peak when off, with flat on-resistance over the full analog range.
Its control logic accepts TTL/CMOS-compatible inputs (0.8 V low / 2.4 V high), operates from dual ±15 V supplies or single +5 V logic supply (VL), and guarantees break-before-make operation only in DG403 variants-not applicable to DG401DY-T1. An epitaxial layer prevents latchup under transient overvoltage conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports rail-to-rail audio and sensor signals without clipping |
| On-Resistance (RDS(on)) | 30 Ω typ. - minimizes signal attenuation and gain error in precision measurement paths |
| Turn-On Time (tON) | 75 ns typ. - enables fast multiplexing in data acquisition systems up to ~10 MHz effective rate |
| Channel-On Leakage (ID(on)) | 40 pA typ. - preserves integrity of high-impedance sample-and-hold capacitors over time |
| Supply Voltage Range (V+ to V−) | 44 V max. - allows operation with ±22 V rails or asymmetric supplies like +30 V / −10 V |
| Logic Supply (VL) | 5 V - compatible with standard microcontroller GPIO without level-shifting |
| Power Dissipation | 0.35 µW typ. - enables always-on operation in energy-harvesting and coin-cell devices |
Pinout & Package
DG401DY-T1 is housed in a 16-pin narrow SOIC package (JEDEC MS-012, 3.9 mm width), with 1.27 mm pitch and RoHS-compliant matte tin terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | No Connect (NC) | Unbonded die pads; must be left floating or tied to GND per layout best practice |
| 2, 15 | V+ | Positive analog supply input; supports up to +22 V relative to V− |
| 3, 14 | V− | Negative analog supply input; supports down to −22 V relative to V+ |
| 4, 13 | GND | Analog ground reference; separate from digital ground but tied at single point |
| 5, 12 | VL | Logic supply input; powers internal level shifters for 5 V TTL/CMOS compatibility |
| 6, 11 | IN1 / IN2 | Digital control inputs; active-high, 0.8 V low / 2.4 V high thresholds |
| 7, 10 | S1 / S2 | Source terminals - bidirectional analog I/O nodes for SPST switch paths |
| 8, 9 | D1 / D2 | Drain terminals - bidirectional analog I/O nodes; paired with S1/S2 respectively |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional analog conduction | Enables use in AC-coupled audio paths and differential sensor interfaces without polarity constraints |
| Flat RDS(on) vs. voltage | Maintains <±5 % resistance variation across ±15 V range-critical for linearity in precision DAC/ADC buffers |
| Ultra-low charge injection (60 pC) | Reduces voltage glitch on hold capacitors, improving accuracy in 16-bit+ sampling systems |
| Off-isolation rejection (72 dB @ 1 MHz) | Prevents crosstalk between adjacent channels in multi-channel audio or telemetry multiplexers |
| Single-supply logic interface (VL = 5 V) | Eliminates need for external level shifters when driven by 3.3 V or 5 V microcontrollers |
Applications
| Audio Source Switching | Portable Data Logger |
|---|---|
Use Scenario: Routing stereo line-level inputs from multiple sources (e.g., microphone, Bluetooth receiver, auxiliary jack) to a single ADC path in a handheld recorder. IC Role / Device Role / Timing Role: Dual SPST analog switch providing isolated, low-distortion signal path selection under microcontroller GPIO control. Use Value: 30 Ω RDS(on) and <12 pF off-capacitance preserve frequency response beyond 20 kHz; 40 pA leakage avoids DC offset drift during long recording sessions. |
Use Scenario: Multiplexing thermocouple, RTD, and voltage sensor outputs into a shared sigma-delta ADC in a battery-powered environmental monitor. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling of high-impedance sensors while minimizing loading and settling error. Use Value: ±15 V analog range accommodates wide-swing sensor excitation; 75 ns tON supports >10 kS/s aggregate sampling rates across 8 channels. |
| Test Equipment Signal Routing | Medical Sensor Interface |
Use Scenario: Configuring signal paths in handheld multimeters or LCR meters-switching between voltage, current, and resistance measurement front-ends. IC Role / Device Role / Timing Role: Low-leakage, low-RDS(on) analog switch isolating sensitive measurement circuits from unused paths. Use Value: 40 pA ID(on) prevents bias current errors in picoampere-level current measurements; 44 V supply rating supports internal ±20 V calibration references. |
Use Scenario: Isolating ECG electrode inputs during lead-off detection or switching between patient leads in a wearable cardiac monitor. IC Role / Device Role / Timing Role: Medical-grade analog switch ensuring patient safety via galvanic isolation and low charge injection during lead reconfiguration. Use Value: 60 pC charge injection limits transient artifacts below 1 µV in 1 mVpp ECG waveforms; RoHS compliance meets IEC 60601-1 material requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | Single SPST, 35 Ω RDS(on), 125 ns tON, requires dual ±15 V only (no VL pin) | Lower channel count; lacks independent logic supply-requires external level translation for 3.3 V controllers | Choose when board space is constrained and only one switch path is needed; verify logic interface compatibility |
| ADG1419BRUZ | Dual SPDT, 1.3 Ω RDS(on), 100 ns tON, 5 V single supply only, no ±V capability | Higher performance but incompatible with bipolar analog ranges; unsuitable for ±15 V sensor conditioning | Choose only for low-voltage, high-precision DC-coupled applications where rail-splitting is impractical |
Compared with MAX4617ESE+ and ADG1419BRUZ, DG401DY-T1 uniquely balances bipolar ±15 V analog support, ultra-low leakage, and 5 V logic compatibility in a dual SPST configuration-making it optimal for portable instrumentation requiring both wide dynamic range and microcontroller-native control.
Availability
DG401DY-T1 is available at Aetrix Electronics and suitable for audio switching, portable data logging, test equipment signal routing, and medical sensor interface applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for DG401DY-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 leader in discrete semiconductors and passive components, specializing in high-reliability analog switching, power management, and sensing solutions for industrial, automotive, and medical markets.
The DG401 series was designed specifically for low-power, high-fidelity analog signal routing in portable and battery-operated instrumentation-emphasizing flat on-resistance, minimal charge injection, and robust bipolar supply operation.
FAQ
What is the maximum analog signal voltage supported by DG401DY-T1?
DG401DY-T1 supports an analog signal range of ±15 V, meaning it can pass signals from –15 V to +15 V relative to its V– and V+ supplies. This is guaranteed under the absolute maximum rating of V+ to V– ≤ 44 V, allowing configurations such as V+ = +22 V and V– = –22 V. Signals exceeding these rails are clamped by internal diodes, so proper external protection is required if overvoltage events are expected. DG401DY-T1 maintains specified RDS(on) and leakage performance across this full range.
Does DG401DY-T1 support break-before-make switching?
No, DG401DY-T1 does not implement break-before-make (BBM) switching-it is a dual SPST device with independent control of each switch. BBM is guaranteed only in the DG403 variant (dual SPDT with complementary control). For DG401DY-T1, simultaneous activation of both switches may cause momentary shorting between S1/D1 and S2/D2 paths if externally connected. System-level timing control or external logic must enforce sequencing if BBM behavior is required.
Can DG401DY-T1 operate from a single 5 V supply?
DG401DY-T1 requires dual analog supplies (V+ and V–) to support its ±15 V analog range, but its logic interface (VL pin) operates from a separate 5 V supply-compatible with standard microcontrollers. It cannot function with only a single 5 V rail applied to V+ and V–. For true single-supply analog operation, consider alternatives like the DG403 or other 0–5 V–optimized switches. DG401DY-T1's design assumes bipolar analog signal handling, not unipolar-only use cases.
What is the thermal derating specification for DG401DY-T1 in SOIC package?
For the DG401DY-T1 in narrow SOIC package, power dissipation must be derated at 7.6 mW/°C above +75 °C ambient temperature. The rated maximum power dissipation is 600 mW at +25 °C, decreasing linearly to zero at approximately +152 °C. This derating ensures safe junction temperature operation under sustained load. Layout practices-including copper pour under the exposed pad (if present) and thermal vias-are recommended to maintain reliability in high-temperature environments where DG401DY-T1 is deployed.
Is DG401DY-T1 RoHS compliant and lead-free?
Yes, DG401DY-T1 is RoHS compliant per Directive 2002/95/EC and features lead-free (matte tin) terminations. The "-T1" suffix denotes tape-and-reel packaging with RoHS-compliant finish. No exemptions apply, and the part meets JEDEC J-STD-020 moisture sensitivity level (MSL) 1 requirements. Full compliance documentation-including substance declarations and test reports-is available through Vishay's official product portal under document number 70049.
DG401DY-T1 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:
- 2
- On-State Resistance (Max):
- 45Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 13V ~ 36V
- Voltage - Supply, Dual (V±):
- ±7V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 60pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -94.8dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG401DY-T1 FAQ
1.How can I place an order for DG401DY-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG401DY-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 DG401DY-T1 reliable?
The price and inventory of DG401DY-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG401DY-T1 is usually 5 days.
3.What payment methods are accepted for DG401DY-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG401DY-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG401DY-T1?
DG401DY-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG401DY-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 DG401DY-T1?
For technical support, including DG401DY-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG401DY-T1 requirements.
6.How does Aetrix verify that DG401DY-T1 is sourced from the original manufacturer or authorized distributors?
All DG401DY-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 DG401DY-T1 meets industry standards.
7.What is the process for return or replacement of DG401DY-T1?
All DG401DY-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG401DY-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 DG401DY-T1 part is unused and in its original packaging.
Return procedure for DG401DY-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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