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Vishay Siliconix DG444BDY-T1-E3
- Part No.:
- DG444BDY-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG444BDY-T1-E3.pdf
- Description:
- IC SWITCH SPST-NCX4 80OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,985
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Product details
Overview
DG444BDY-T1-E3 from Vishay Siliconix is a monolithic quad SPST CMOS analog switch optimized for bidirectional signal routing in precision analog systems, featuring 45 Ω typical on-resistance, 120 ns typical turn-on time (under unipolar 12 V supply), and ±15 V dual-supply analog signal range. It serves as an upgrade to the DG444, enabling low-distortion audio switching, data acquisition multiplexing, and sample-and-hold control.
For engineers reviewing the DG444BDY-T1-E3 datasheet, DG444BDY-T1-E3 pinout, DG444BDY-T1-E3 application, or DG444BDY-T1-E3 equivalent, key selection criteria include guaranteed 45 Ω RDS(on) at ±15 V, sub-1 pC charge injection for pedestal error minimization, TTL/CMOS-compatible logic thresholds, and SOIC-16 package compatibility with standard PCB footprints.
Technical Context
The DG444BDY-T1-E3 implements four independent SPST switches using high-voltage silicon-gate CMOS technology with epitaxial latchup protection. Each channel conducts equally in both directions when ON and blocks signals up to the supply rails when OFF.
It operates from dual supplies (±15 V) or unipolar supplies (12 V), with logic control referenced to VL = 5 V. The device features minimized drain-side charge injection-critical for sample-and-hold accuracy-and supports analog signals from –15 V to +15 V under dual supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RDS(on)) | 45 Ω typ. at ±15 V - ensures minimal signal attenuation and gain error in precision amplifier gain-switching circuits |
| Turn-On Time (tON) | 120 ns typ. (V+ = 12 V, V− = 0 V) - enables high-throughput data acquisition at >1 MHz sampling rates |
| Charge Injection | 1 pC typ. (CL = 1 nF) - limits pedestal error to <1 mV in 12-bit sample-and-hold applications |
| Analog Signal Range | ±15 V full range - supports rail-to-rail analog signal handling without clamping in industrial sensor interfaces |
| Logic Compatibility | TTL/CMOS inputs (VINL ≤ 0.8 V, VINH ≥ 2.4 V) - allows direct interfacing with microcontrollers and FPGA I/O without level shifters |
| Off-Leakage Current | ±0.01 nA max. at 85 °C - preserves DC accuracy in high-impedance medical instrumentation front-ends |
| Supply Current | 1–5 µA per supply rail - enables low-power operation in battery-backed data loggers |
Pinout & Package
Package: 16-pin narrow-body SOIC (JEDEC MS-012), 3.9 mm × 9.9 mm footprint, 1.27 mm pitch, RoHS-compliant, tape-and-reel (T1-E3).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | IN1–IN4 (Digital Control Inputs) | Active-high logic inputs controlling respective S/D switches; compatible with 3.3 V/5 V logic |
| 2, 6, 10, 14 | S1–S4 (Source Terminals) | Analog input nodes; bidirectional when switch is ON; isolated to ±15 V when OFF |
| 3, 7, 11, 15 | D1–D4 (Drain Terminals) | Analog output nodes; matched impedance and charge injection profile to sources |
| 4 | V− | Negative analog supply rail; must be connected to system ground or negative bias |
| 8 | GND | Digital ground reference for logic interface and internal bias generation |
| 12 | VL | Logic supply voltage (typically 5 V); decouples digital switching noise from analog path |
| 16 | V+ | Positive analog supply rail; sets upper limit of analog signal swing (e.g., +15 V) |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance matching | ≤5 Ω channel-to-channel RDS(on) variation - maintains consistent gain across switched resistor networks in programmable-gain amplifiers |
| Epitaxial latchup immunity | Guaranteed no latchup under all operating conditions - eliminates risk of catastrophic failure in noisy industrial environments |
| Minimized drain-side charge injection | 1 pC typ. - reduces hold-mode settling error in precision sample-and-hold circuits without external correction |
| Bidirectional conduction symmetry | Identical RDS(on) and tON/tOFF in either direction - enables flexible signal routing without polarity constraints |
| High off-isolation | –90 dB at 100 kHz - suppresses crosstalk between adjacent channels in multi-channel data acquisition systems |
Applications
| Audio Signal Routing | Data Acquisition Multiplexing |
|---|---|
|
Use Scenario: Switching between multiple microphone inputs or line-level audio sources in professional mixing consoles. IC Role / Device Role / Timing Role: Quad SPST analog switch providing low-noise, low-crosstalk signal path selection with minimal THD. Use Value: 45 Ω RDS(on) and –95 dB crosstalk preserve signal fidelity across 20 Hz–20 kHz bandwidth without audible artifacts. |
Use Scenario: Multiplexing 16-channel sensor outputs into a single ADC in industrial process monitoring systems. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling with <120 ns channel settling time. Use Value: Sub-1 pC charge injection prevents baseline shift during rapid channel scanning, maintaining 12-bit DC accuracy. |
| Sample-and-Hold Circuits | Programmable-Gain Amplifier Switching |
|
Use Scenario: Capturing transient voltage waveforms in oscilloscope front-ends or power quality analyzers. IC Role / Device Role / Timing Role: Low-charge-injection switch isolating hold capacitor during acquisition phase. Use Value: 1 pC typ. injection limits pedestal error to <0.5 mV on 1 nF hold capacitors, supporting 14-bit effective resolution. |
Use Scenario: Selecting feedback resistors in op-amp-based programmable-gain stages for sensor signal conditioning. IC Role / Device Role / Timing Role: Precision analog switch configuring gain-setting resistor networks without introducing gain error. Use Value: Matched 45 Ω RDS(on) across all four switches ensures gain accuracy within ±0.1% for AV = 1–100 configurations. |
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 |
|---|---|---|---|
| MAX4617ESE+ | Higher RDS(on) (60 Ω typ.), wider supply range (±20 V), but higher charge injection (3 pC) | Better suited for high-voltage test equipment where leakage tolerance exceeds 1 nA | Select MAX4617ESE+ only if ±20 V operation is required and pedestal error budget allows >2× DG444BDY-T1-E3's charge injection |
| ADG1414BRUZ | Lower RDS(on) (1.8 Ω typ.), but requires higher logic supply (VL = 3 V min.) and has larger SOIC footprint (5.3 mm × 10.2 mm) | Preferred for ultra-low-loss RF/data converter interface where <2 Ω on-resistance justifies layout redesign | Choose ADG1414BRUZ only when board space permits larger SOIC and system logic can support 3 V minimum VL |
Compared with MAX4617ESE+ and ADG1414BRUZ, DG444BDY-T1-E3 delivers optimal balance of low on-resistance (45 Ω), ultra-low charge injection (1 pC), and industry-standard narrow SOIC packaging-making it the preferred choice for cost-sensitive, space-constrained precision analog systems requiring proven reliability and drop-in compatibility with legacy DG444 designs.
Availability
DG444BDY-T1-E3 is available at Aetrix Electronics and suitable for audio switching, data acquisition, and medical instrumentation requiring stable component supply, long-term manufacturability, and traceable sourcing from Vishay-qualified production lines.
Supply support for DG444BDY-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 leader in discrete semiconductors and passive components, specializing in high-reliability analog switching, power management, and sensing solutions for industrial and automotive markets.
The DG444B family was designed specifically for precision analog signal routing in data acquisition, medical instrumentation, and automated test equipment-emphasizing low distortion, low leakage, and robust latchup immunity.
FAQ
What is the maximum analog signal voltage range supported by DG444BDY-T1-E3?
DG444BDY-T1-E3 supports a full analog signal range of ±15 V when operated with dual supplies (V+ = +15 V, V− = −15 V). Under unipolar operation (V+ = 12 V, V− = 0 V), the usable analog range is 0 V to 12 V. Exceeding these limits risks clamping by internal diodes and may degrade long-term reliability.
Does DG444BDY-T1-E3 require external pull-up or pull-down resistors on its digital inputs?
No, DG444BDY-T1-E3 does not require external pull-up or pull-down resistors. Its TTL/CMOS-compatible inputs have defined thresholds (VINL ≤ 0.8 V, VINH ≥ 2.4 V) and low input current (±1 µA max.), allowing direct connection to microcontroller GPIOs or FPGA outputs without additional biasing components.
Can DG444BDY-T1-E3 operate with a single 5 V supply?
No, DG444BDY-T1-E3 cannot operate with only a 5 V supply. It requires either dual supplies (e.g., ±15 V or ±12 V) or a unipolar supply of at least 10 V (minimum specified V+ = 12 V, V− = 0 V). A 5 V-only configuration falls outside absolute maximum ratings and will not enable proper analog signal switching.
How does the VL pin function in DG444BDY-T1-E3, and what voltage should it be set to?
The VL pin supplies the logic interface voltage and must be set to 5 V (±10 %) as specified in the datasheet. It powers internal level-shift circuitry, ensuring correct interpretation of TTL/CMOS logic levels regardless of analog supply voltages. Operating VL outside 4.5 V–5.5 V may cause erratic switching or increased input current.
Is DG444BDY-T1-E3 pin-compatible with the original DG444 series?
Yes, DG444BDY-T1-E3 is pin-compatible with the original DG444 (e.g., DG444DJ, DG444DY) in the same SOIC-16 package. The "B" suffix denotes process and performance improvements-including lower RDS(on), faster switching, and reduced charge injection-while maintaining identical pinout, footprint, and logic behavior.
DG444BDY-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):
- 80Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 13V ~ 36V
- Voltage - Supply, Dual (V±):
- ±7V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 300ns, 200ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 5pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -95dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG444BDY-T1-E3 FAQ
1.How can I place an order for DG444BDY-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG444BDY-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 DG444BDY-T1-E3 reliable?
The price and inventory of DG444BDY-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 DG444BDY-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG444BDY-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG444BDY-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG444BDY-T1-E3?
DG444BDY-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG444BDY-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 DG444BDY-T1-E3?
For technical support, including DG444BDY-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG444BDY-T1-E3 requirements.
6.How does Aetrix verify that DG444BDY-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG444BDY-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 DG444BDY-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG444BDY-T1-E3?
All DG444BDY-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG444BDY-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 DG444BDY-T1-E3 part is unused and in its original packaging.
Return procedure for DG444BDY-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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