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Vishay Siliconix DG444DY-E3
- Part No.:
- DG444DY-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG444DY-E3.pdf
- Description:
- IC SWITCH SPST-NCX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,271
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Product details
Overview
DG444DY-E3 from Vishay Siliconix is a quad SPST normally closed (NC) CMOS 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 dual-supply operation, and 80 pA max off-leakage - enabling low-error switching in sample-and-hold and audio paths.
For engineers reviewing the DG444DY-E3 datasheet, DG444DY-E3 pinout, DG444DY-E3 application, or DG444DY-E3 equivalent, key selection criteria include its NC configuration, SOIC-16 package compatibility with legacy DG211 sockets, charge injection of –1 pC, and support for unipolar (5–36 V) or bipolar (±5 to ±20 V) supplies.
Technical Context
The DG444DY-E3 implements four independent bidirectional analog switches fabricated on Vishay's high-voltage silicon-gate process, featuring epitaxial latchup protection. Each channel operates symmetrically with full rail-to-rail analog signal range (±15 V with dual supplies) and TTL/CMOS-compatible digital control inputs (0.8 V low / 2.4 V high thresholds).
Its normally closed architecture ensures continuity at power-up or logic low, while low 22 nW typical power consumption and minimized drain-side charge injection support high-fidelity sampling in precision measurement circuits without pedestal error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch type | Quad SPST, normally closed (NC) |
| RDS(on) | 50 Ω typical - enables low insertion loss and minimal gain error in precision amplifier gain-switching networks |
| tON | 120 ns typical at ±15 V - supports >1 MHz sampling rates in data acquisition front-ends |
| Charge injection | –1 pC - reduces hold-mode voltage step error in sample-and-hold circuits below 1 LSB for 12-bit systems |
| IS(off) | ±0.5 nA max - ensures <1 µV offset drift in high-impedance sensor interfaces |
| Analog range | ±15 V (dual), 0–12 V (unipolar) - accommodates industrial sensor outputs and audio line-level signals |
| Logic supply | VL = 5 V - allows direct interfacing with microcontroller GPIO without level-shifting |
Pinout & Package
Package: 16-pin narrow-body SOIC (JEDEC MS-012, 3.9 × 9.9 mm), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control input | Active-low logic: low = switch closed (NC); compatible with 5 V TTL/CMOS |
| S1–S4 | Source terminal | Bidirectional analog path input; connects to signal source in NC state |
| D1–D4 | Drain terminal | Bidirectional analog path output; low charge injection optimized for hold capacitor node |
| V+ | Positive analog supply | Supports up to +36 V single or +20 V dual; powers analog channel conduction |
| V− | Negative analog supply | Supports down to –20 V dual; enables true bipolar signal switching |
| GND | Analog ground reference | Common return for V− and analog signal paths; separate from digital ground |
| VL | Logic supply | 5 V dedicated rail for internal gate drive; isolates logic noise from analog section |
Key Features
| Feature | Design Value |
|---|---|
| Normally closed (NC) topology | Ensures default signal continuity during power-up, reset, or open-drain control failure - critical for fail-safe sensor monitoring |
| Low 50 Ω RDS(on) | Minimizes channel resistance mismatch across four switches, enabling matched-gain programmable amplifiers with <0.1% gain error |
| –1 pC charge injection | Reduces sample-and-hold pedestal error to <50 µV with 1 nF hold capacitor - sufficient for 14-bit accuracy |
| TTL/CMOS logic compatibility | Eliminates need for external level shifters when driven by FPGA or MCU GPIO operating at 5 V logic levels |
| High-voltage silicon-gate process | Provides 44 V V+–V− rating and inherent latchup immunity via epitaxial isolation - suitable for harsh industrial environments |
Applications
| Audio Switching | Data Acquisition |
|---|---|
Use Scenario: Routing multiple microphone or line-level inputs to a single ADC channel in professional audio mixers. IC Role / Device Role / Timing Role: Quad SPST NC switch providing low-distortion, low-crosstalk analog path selection with <100 dB off-isolation. Use Value: Maintains signal integrity with <0.002% THD+N due to 50 Ω matched on-resistance and <4 pF off-capacitance per channel. | Use Scenario: Multiplexing sensor outputs (thermocouples, strain gauges) into a precision SAR ADC front-end. IC Role / Device Role / Timing Role: NC-configured analog switch ensuring default connection to reference channel during system initialization or fault conditions. Use Value: Enables safe power-up sequencing and eliminates floating inputs, while 80 pA leakage prevents >1 µV offset in 10 MΩ sensor bridges. |
| Sample-and-Hold Circuits | Telecommunication Systems |
Use Scenario: Precision hold-phase switch in a 12-bit+ data acquisition system requiring sub-LSB settling. IC Role / Device Role / Timing Role: Low-charge-injection NC switch connecting analog input to hold capacitor during sample phase. Use Value: –1 pC charge injection limits hold-step error to <10 µV with 1 nF capacitor - preserving DC accuracy over temperature. | Use Scenario: Signal path switching in telecom line interface units (LIUs) handling ±12 V analog signaling. IC Role / Device Role / Timing Role: High-voltage analog switch managing tip/ring polarity reversal and test loopback functions. Use Value: 44 V V+–V− rating and ±20 V dual-supply support enable direct integration into E&M signaling and SLIC interface circuits. |
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 |
|---|---|---|---|
| MAX4674ESE+ | NO configuration, 60 Ω RDS(on), 2.7–5.5 V single-supply only, no VL pin | Requires external level translation for ±15 V analog rails; unsuitable for bipolar operation | Select when only low-voltage unipolar operation is needed and NC function is not required |
| ADG1414BRUZ | NO configuration, 1.8 Ω RDS(on), 15 V max supply, 3 V logic compatible, no VL pin | Cannot support ±20 V dual supplies or 36 V unipolar; higher cost and larger package | Select when ultra-low on-resistance is critical and supply range fits within ±15 V |
Compared with DG444DY-E3, MAX4674ESE+ lacks NC functionality and bipolar support but offers lower on-capacitance; ADG1414BRUZ provides superior RDS(on) yet sacrifices voltage range and failsafe NC behavior - making DG444DY-E3 optimal for industrial multiplexing where robustness and default continuity matter.
Availability
DG444DY-E3 is available at Aetrix Electronics and suitable for audio switching, data acquisition, and sample-and-hold circuits requiring stable component supply, long-term manufacturability, and drop-in replacement for legacy DG211/DG212 sockets.
Supply support for DG444DY-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 leader in discrete semiconductors and passive components, specializing in high-reliability analog solutions for industrial, automotive, and computing markets.
The DG444 series belongs to Vishay's precision analog switch product line, engineered specifically for low-error signal routing in instrumentation, medical devices, and automated test equipment where NC fail-safe behavior and rail-to-rail analog performance are essential.
FAQ
What is the default state of DG444DY-E3 when power is applied?
The DG444DY-E3 is a normally closed (NC) analog switch, meaning all four channels conduct by default when no logic signal is applied to IN1–IN4 or when those inputs are held low (≤0.8 V). This fail-safe behavior ensures signal continuity during power-up, reset, or controller initialization - a key differentiator from NO variants like DG445DY-E3.
Can DG444DY-E3 operate with a single 12 V supply?
Yes, DG444DY-E3 supports unipolar operation from 5 V to 36 V. With a 12 V supply (V+ = 12 V, V− = GND), it delivers full analog signal range from 0 V to 12 V, 100 Ω typical RDS(on), and 300 ns typical tON. The VL pin must still be supplied with 5 V for proper logic interface, independent of the analog supply.
Does DG444DY-E3 require external pull-up or pull-down resistors on its IN pins?
No, DG444DY-E3 has CMOS input structure with negligible input current (±500 nA max), so external biasing resistors are unnecessary. Logic thresholds are defined as ≤0.8 V for low and ≥2.4 V for high - directly compatible with standard 5 V microcontrollers and FPGAs without additional components.
How does the VL pin function in DG444DY-E3?
The VL pin supplies the internal logic circuitry with a dedicated 5 V rail, decoupling digital switching noise from the analog section. It must be externally supplied with 5 V ±10 %, regardless of whether the analog supplies are unipolar or bipolar. This separation improves PSRR and prevents digital transients from coupling into sensitive analog paths.
Is DG444DY-E3 pin-compatible with DG211 or DG212?
Yes, DG444DY-E3 uses the same 16-pin SOIC package and pinout as DG211 and DG212, enabling direct socket replacement. Key electrical improvements - including lower RDS(on) (50 Ω vs. 90 Ω), faster switching (120 ns vs. 250 ns), and reduced charge injection - provide immediate performance upgrades without PCB redesign.
DG444DY-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- 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-E3 FAQ
1.How can I place an order for DG444DY-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG444DY-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-E3 reliable?
The price and inventory of DG444DY-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-E3 is usually 5 days.
3.What payment methods are accepted for DG444DY-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG444DY-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG444DY-E3?
DG444DY-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG444DY-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-E3?
For technical support, including DG444DY-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG444DY-E3 requirements.
6.How does Aetrix verify that DG444DY-E3 is sourced from the original manufacturer or authorized distributors?
All DG444DY-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-E3 meets industry standards.
7.What is the process for return or replacement of DG444DY-E3?
All DG444DY-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG444DY-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-E3 part is unused and in its original packaging.
Return procedure for DG444DY-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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