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Vishay Siliconix DG444DY-T1-E3
- Part No.:
- DG444DY-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG444DY-T1-E3.pdf
- Description:
- IC SWITCH SPST-NCX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:11,458
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Product details
Overview
DG444DY-T1-E3 from Vishay Siliconix is a quad SPST normally-closed (NC) analog switch IC designed for precision signal routing in instrumentation and data acquisition systems. It delivers 50 Ω on-resistance, 120 ns typical turn-on time (±15 V), and ±15 V analog signal range under dual supply, enabling low-error switching in sample-and-hold and audio routing applications.
For engineers reviewing the DG444DY-T1-E3 datasheet, DG444DY-T1-E3 pinout, DG444DY-T1-E3 application, or DG444DY-T1-E3 equivalent, key selection criteria include its NC configuration, 85 °C operating temperature range, SOIC-16 narrow-body package, and compatibility with ±5 V to ±20 V or +5 V to +36 V supplies.
Technical Context
The DG444DY-T1-E3 implements four independent bidirectional SPST switches fabricated using Vishay's high-voltage silicon-gate process, featuring epitaxial latchup protection. Each channel exhibits symmetrical conduction when on and blocks signals up to rail voltage when off.
Its TTL/CMOS-compatible digital inputs accept logic thresholds of ≤0.8 V (low) and ≥2.4 V (high) with <±0.01 nA input current. Charge injection is minimized to −1 pC (typ.), critical for precision sample-and-hold circuits where pedestal error must be suppressed.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Configuration | Quad SPST, normally closed (NC) - all four channels default closed at power-up or logic low |
| On-Resistance | 50 Ω (typ.) at ±15 V - ensures minimal signal attenuation and gain error in precision amplifier gain-switching |
| Turn-On Time | 120 ns (typ.) at ±15 V - supports >1 MHz sampling rates in data acquisition front-ends |
| Analog Signal Range | ±15 V (dual supply) or 0–12 V (single supply) - accommodates industrial sensor outputs and audio line-level signals |
| Charge Injection | −1 pC (typ.) - limits hold-mode voltage step error to <1 mV in 1 nF sample capacitors |
| Off-Leakage Current | ±0.01 nA (typ.) at ±15.5 V - preserves capacitor charge integrity over seconds in sample-and-hold operation |
| Supply Range | Single: +5 V to +36 V; Dual: ±5 V to ±20 V - enables use across battery-powered and industrial rail systems |
Pinout & Package
Package: 16-pin narrow-body SOIC (JEDEC MS-012, 3.9 mm width), RoHS-compliant, tape-and-reel (T1-E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control inputs | Active-low logic: logic "0" (≤0.8 V) closes switch; logic "1" (≥2.4 V) opens switch |
| S1–S4 | Source terminals | Bidirectional analog inputs/outputs; connect to signal source or load depending on circuit topology |
| D1–D4 | Drain terminals | Bidirectional analog inputs/outputs; paired with Sx to form NC switch path |
| V+ | Positive analog supply | Supports up to +36 V single or +20 V dual; powers internal switch core and level shifters |
| V− | Negative analog supply | Supports down to −20 V; required for bipolar signal handling and rail-to-rail analog range |
| GND | Analog ground reference | Common return for V− and signal paths; separate from logic ground unless tied externally |
| VL | Logic supply voltage | Accepts 5 V (typ.) for TTL/CMOS interface; decoupling required for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Normally closed (NC) architecture | Ensures fail-safe signal continuity during power loss or logic fault - critical in medical sensor monitoring paths |
| Low 50 Ω on-resistance matching | Maximizes channel-to-channel gain consistency in programmable-gain amplifiers using resistor networks |
| −1 pC charge injection | Enables sub-12-bit accuracy in 1 µs sample-and-hold cycles without external pedestal correction |
| ±20 V dual-supply capability | Supports direct interfacing with ±10 V industrial DACs and ADCs without level-shifting circuitry |
| TTL/CMOS logic compatibility | Eliminates need for buffer ICs when driven by microcontroller GPIO or FPGA I/O banks |
Applications
| Audio Signal Routing | Data Acquisition Front-End |
|---|---|
|
Use Scenario: Selecting between multiple microphone preamp outputs before ADC conversion in a multi-channel audio recorder. IC Role / Device Role / Timing Role: Quad NC switch routes analog mic signals with minimal crosstalk (<−100 dB) and distortion. Use Value: Maintains signal fidelity across 20 Hz–20 kHz bandwidth while enabling software-configurable input mapping. |
Use Scenario: Multiplexing eight sensor outputs into a single high-resolution ADC in an industrial PLC module. IC Role / Device Role / Timing Role: Four DG444DY-T1-E3 devices provide 16-channel analog switching with synchronized control. Use Value: 120 ns switching enables 10 kSPS per channel without aperture jitter degradation. |
| Precision Sample-and-Hold | Programmable-Gain Amplifier |
|
Use Scenario: Capturing transient voltage waveforms from piezoelectric sensors in structural health monitoring. IC Role / Device Role / Timing Role: DG444DY-T1-E3 acts as the hold switch, closing during sample phase and opening on trigger. Use Value: −1 pC charge injection limits hold-step error to <0.5 mV on 1 nF hold capacitor, preserving 14-bit ENOB. |
Use Scenario: Configuring gain settings (1×, 10×, 20×, 100×) in a medical ECG amplifier via resistor network switching. IC Role / Device Role / Timing Role: DG444DY-T1-E3 selects feedback resistors while maintaining matched on-resistance across channels. Use Value: 50 Ω on-resistance matching minimizes gain error drift across temperature (±0.02% over −40 °C to +85 °C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4674ESE+ | Quad SPST NO, 60 Ω RDS(on), 150 ns tON, +2.7 V to +36 V single supply only | Lacks dual-supply support; unsuitable for ±10 V sensor interfaces | Select when only single-supply operation and NO logic are acceptable |
| ADG1414BRUZ | Quad SPST NO, 1.8 Ω RDS(on), 125 ns tON, ±15 V dual supply, but requires logic high to close | NO configuration requires redesign of control logic; lower on-resistance increases cost | Choose for ultra-low on-resistance needs where NC behavior can be implemented externally |
Compared with DG444DY-T1-E3, MAX4674ESE+ offers simpler supply architecture but no NC function or bipolar support, while ADG1414BRUZ provides superior on-resistance yet mandates logic inversion and lacks inherent fail-safe closure - making DG444DY-T1-E3 uniquely suited for safety-critical analog signal paths requiring default continuity.
Availability
DG444DY-T1-E3 is available at Aetrix Electronics and suitable for audio switching, data acquisition, and precision sample-and-hold applications requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for DG444DY-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 components and analog ICs, with leadership in high-voltage switching, precision analog, and ruggedized packaging technologies.
The DG444 series belongs to Vishay's high-performance analog switch product line, engineered specifically for instrumentation-grade signal integrity, low leakage, and rail-to-rail operation in medical, test equipment, and industrial control systems.
FAQ
What is the maximum analog signal voltage supported by DG444DY-T1-E3?
DG444DY-T1-E3 supports analog signals from V− to V+, with absolute maximum ratings of V+ to V− = 44 V. Under dual-supply operation at ±15 V, it reliably passes ±15 V signals; under single supply at +12 V, it handles 0–12 V. Exceeding these voltages risks clamping by internal diodes or permanent damage.
Does DG444DY-T1-E3 require a separate logic supply voltage?
Yes, DG444DY-T1-E3 requires VL (logic supply) pin to be connected to 5 V for proper TTL/CMOS compatibility. The VL pin powers internal level shifters and must be decoupled with a 0.1 µF ceramic capacitor near the device. It is not internally regulated from V+ or V−.
How does the normally closed (NC) behavior of DG444DY-T1-E3 affect system safety?
The NC configuration of DG444DY-T1-E3 ensures analog continuity during power loss, reset, or logic fault - a critical safety feature in medical monitoring and industrial sensor loops. When INx is un-driven or low, the switch remains closed; only a logic high opens it, providing inherent fail-safe signal path integrity.
Can DG444DY-T1-E3 operate with asymmetric dual supplies, such as +12 V and −5 V?
Yes, DG444DY-T1-E3 supports asymmetric dual supplies within its absolute maximum ratings: V+ to V− ≤ 44 V, and |V−| ≤ 25 V referenced to GND. For example, +12 V and −5 V (17 V total) is valid, enabling custom rail configurations for mixed-signal systems without violating internal junction limits.
What is the thermal derating specification for DG444DY-T1-E3 in SOIC-16 package?
DG444DY-T1-E3 in narrow SOIC-16 has a power dissipation limit of 640 mW at TA ≤ 75 °C. Above 75 °C, it must be derated at 8 mW/°C - meaning maximum allowable power drops to 560 mW at 85 °C ambient. This ensures junction temperature stays within safe operating limits under continuous load.
DG444DY-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 250ns, 140ns
- -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
DG444DY-T1-E3 FAQ
1.How can I place an order for DG444DY-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG444DY-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 DG444DY-T1-E3 reliable?
The price and inventory of DG444DY-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 DG444DY-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG444DY-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG444DY-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG444DY-T1-E3?
DG444DY-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG444DY-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 DG444DY-T1-E3?
For technical support, including DG444DY-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG444DY-T1-E3 requirements.
6.How does Aetrix verify that DG444DY-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG444DY-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 DG444DY-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG444DY-T1-E3?
All DG444DY-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG444DY-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 DG444DY-T1-E3 part is unused and in its original packaging.
Return procedure for DG444DY-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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