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Vishay Siliconix DG442LDQ-T1-E3
- Part No.:
- DG442LDQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG442LDQ-T1-E3.pdf
- Description:
- IC SW SPST-NOX4 30OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,965
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Product details
Overview
DG442LDQ-T1-E3 from Vishay Siliconix is a precision monolithic quad SPST low-voltage CMOS analog switch with break-before-make switching action, 20 ns turn-on time, 12 ns turn-off time, and 17 Ω on-resistance - used in precision data acquisition and audio/video signal routing where low distortion and high channel isolation are required.
For engineers reviewing the DG442LDQ-T1-E3 datasheet, DG442LDQ-T1-E3 pinout, DG442LDQ-T1-E3 application, or DG442LDQ-T1-E3 equivalent, key selection criteria include single/dual supply compatibility (2.7–12 V or ±3–±6 V), 0.25 nA leakage, 2000 V ESD protection, and TSSOP-16 package suitability for space-constrained PCB layouts.
Technical Context
The DG442LDQ-T1-E3 implements complementary CMOS control logic (active-low enable per channel) and uses BiCMOS fabrication to achieve flat RDS(on) over its full analog signal range. It supports rail-to-rail analog operation up to 12 V single supply or ±6 V dual supply, with guaranteed performance across –40 °C to +85 °C.
Its architecture delivers 68 dB off-isolation and 85 dB channel-to-channel crosstalk at 1 MHz under ±5 V dual supply, while maintaining <5 pC charge injection and <20 ns switching transients - enabling accurate sampling and minimal signal corruption in precision instrumentation paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance | 17 Ω typical at 12 V supply - ensures minimal voltage drop and signal attenuation in low-level analog paths |
| Turn-on time | 20 ns max at 12 V - enables fast multiplexing in high-speed data acquisition systems |
| Turn-off time | 12 ns max at 12 V - supports precise timing control and reduces channel overlap risk |
| Leakage current | 0.25 nA max at 25 °C - preserves accuracy in high-impedance sensor interfaces and sample-and-hold circuits |
| Analog signal range | 0 to 12 V (single supply) or ±5 V (dual supply) - supports full-rail operation without clipping |
| ESD protection | 2000 V HBM - enhances robustness during handling and board assembly |
| Supply range | 2.7–12 V single or ±3–±6 V dual - simplifies power design across battery-powered and line-powered systems |
Pinout & Package
Package: 16-pin TSSOP (JEDEC MS-012), 4.4 mm × 5.0 mm footprint, 0.65 mm pitch, 1.2 mm max height - optimized for automated assembly and thermal performance in dense layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (IN1–IN4) | Digital control inputs | Active-low logic: low = channel ON for DG442L; compatible with TTL/CMOS levels (≤0.8 V low, ≥2.4 V high) |
| 5, 6, 12, 13 (S1–S4) | Source terminals | Analog input nodes - each tied to one SPST switch; bidirectional signal path capability |
| 7, 8, 11, 10 (D1–D4) | Drain terminals | Analog output nodes - paired with respective Sx pins; matched RDS(on) ≤0.5 Ω between channels |
| 9 (GND) | Ground reference | Common return for digital control and substrate bias; must be low-impedance for noise immunity |
| 14 (V−) | Negative supply | Required for dual-supply operation; floats to GND in single-supply mode but must be connected |
| 16 (V+) | Positive supply | Primary power rail - sets analog signal range upper limit and governs RDS(on) and switching speed |
| 15 (NC) | No connect | Internally unconnected; must remain unpopulated and unbonded on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Prevents momentary shorting between channels during state transitions - critical for avoiding signal glitches in multiplexed sensor arrays |
| Rail-to-rail analog operation | Supports full 0–12 V or ±5 V signal swing without distortion - eliminates need for level-shifting in mixed-signal front-ends |
| Low charge injection (5 pC) | Minimizes voltage step errors in sample-and-hold and switched-capacitor circuits - preserves DC accuracy |
| High off-isolation (68 dB @ 1 MHz) | Reduces unwanted coupling between inactive channels - essential for high-fidelity audio routing and RF-adjacent analog paths |
| TTL/CMOS-compatible inputs | Direct interface with microcontrollers and FPGAs without external level shifters - lowers BOM count and layout complexity |
Applications
| Precision Data Acquisition | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing multiple low-level sensor outputs (e.g., thermocouples, strain gauges) into a single ADC channel. IC Role / Device Role / Timing Role: Quad SPST analog switch providing channel selection with <0.25 nA leakage and 17 Ω RDS(on) to preserve signal integrity. Use Value: Enables 16-bit+ measurement accuracy by minimizing offset drift and gain error introduced by switch resistance mismatch. | Use Scenario: Selecting between multiple line-level audio sources (e.g., microphone, Bluetooth codec, DAC) before feeding a headphone amplifier. IC Role / Device Role / Timing Role: Low-distortion analog switch with 280 MHz –3 dB bandwidth and <5 pC charge injection. Use Value: Prevents audible clicks/pops during source switching and maintains wide dynamic range (>95 dB SNR). |
| Video Signal Switching | Battery-Powered Instrumentation |
Use Scenario: Routing composite or component video signals in portable test equipment with HDMI/SDI interface emulation. IC Role / Device Role / Timing Role: High-speed analog switch delivering 68 dB off-isolation and 85 dB crosstalk suppression at 50 MHz. Use Value: Ensures clean video pass-through without ghosting or color bleeding between active and inactive channels. | Use Scenario: Power-gating analog front-end sections in handheld multimeters or portable oscilloscopes to extend battery life. IC Role / Device Role / Timing Role: Low-quiescent-current analog switch consuming only 0.03 µA I+ at 12 V and supporting 2.7 V minimum operation. Use Value: Reduces standby power by >90% compared to mechanical relays while maintaining sub-nA leakage for measurement stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4618ESE+ | Higher RDS(on) (45 Ω typ), slower tON/tOFF (45/30 ns), SOIC-16 only | Limited to lower-bandwidth industrial controls; not suitable for audio/video routing above 10 MHz | Choose when cost sensitivity outweighs speed and on-resistance requirements |
| ADG1412BRUZ | Lower RDS(on) (1.3 Ω typ), higher supply voltage (up to ±15 V), TSSOP-16, but 4× higher quiescent current (2 µA) | Better for high-precision, high-voltage instrumentation; less optimal for ultra-low-power battery use | Prefer when sub-ohm on-resistance and extended voltage range justify increased power and cost |
Compared with MAX4618ESE+ and ADG1412BRUZ, the DG442LDQ-T1-E3 offers the best balance of speed (20 ns), low on-resistance (17 Ω), and ultra-low leakage (0.25 nA) in a compact TSSOP package - making it ideal for portable precision analog systems where power, size, and fidelity are jointly constrained.
Availability
DG442LDQ-T1-E3 is available at Aetrix Electronics and suitable for precision data acquisition, audio/video signal routing, and battery-powered instrumentation requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for DG442LDQ-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 semiconductors and passive components, with leadership in analog switches, MOSFETs, diodes, and power ICs.
The DG442LDQ-T1-E3 belongs to Vishay's precision analog switch product line, engineered for high-fidelity signal routing in test equipment, communications infrastructure, and portable instrumentation where low distortion, fast settling, and rail-to-rail operation are mandatory.
FAQ
What is the maximum supply voltage rating for DG442LDQ-T1-E3?
The absolute maximum rating for V+ to V− is 13 V. For reliable operation, the recommended single-supply range is 2.7 V to 12 V, and dual-supply range is ±3 V to ±6 V. Exceeding 12 V single or ±6 V dual may degrade RDS(on), increase leakage, or trigger internal clamping - always observe derating curves above 75 °C per datasheet note 2c.
Does DG442LDQ-T1-E3 support rail-to-rail analog signal switching?
Yes, DG442LDQ-T1-E3 supports rail-to-rail analog signal switching: with 12 V single supply, the analog range is 0 V to 12 V; with ±5 V dual supply, it is –5 V to +5 V. This is enabled by BiCMOS process design and verified across temperature - no external level shifting is needed for full-scale signal passage.
How does the DG442LDQ-T1-E3 differ from DG441LDQ-T1-E3 in logic behavior?
The DG442LDQ-T1-E3 uses active-low control logic (INx = low → channel ON), whereas DG441LDQ-T1-E3 uses active-high logic (INx = high → channel ON). Both share identical electrical specs, pinout, and package - only truth table polarity differs. This allows direct substitution in designs where control signal inversion is acceptable or easily implemented.
Is DG442LDQ-T1-E3 RoHS compliant and halogen-free?
Yes, DG442LDQ-T1-E3 is compliant with RoHS Directive 2002/95/EC and certified halogen-free per IEC 61249-2-21. The "E3" suffix explicitly denotes lead-free, RoHS-compliant termination, and the device meets Vishay's green material standards - confirmed in Document Number 71399, Rev. E.
What is the thermal derating specification for DG442LDQ-T1-E3 in TSSOP package?
For the 16-pin TSSOP package (DQ suffix), DG442LDQ-T1-E3 has a power dissipation rating of 450 mW at 25 °C, with linear derating of 7 mW/°C above 75 °C. This means usable power drops to ~315 mW at 95 °C ambient - ensure adequate copper area and airflow if operating near thermal limits in sealed enclosures.
DG442LDQ-T1-E3 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:
- 4
- On-State Resistance (Max):
- 30Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- ±3V ~ 6V
- Switch Time (Ton, Toff) (Max):
- 60ns, 35ns
- -3db Bandwidth:
- 280MHz
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 6pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -95dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
DG442LDQ-T1-E3 FAQ
1.How can I place an order for DG442LDQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442LDQ-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 DG442LDQ-T1-E3 reliable?
The price and inventory of DG442LDQ-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 DG442LDQ-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG442LDQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442LDQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442LDQ-T1-E3?
DG442LDQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442LDQ-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 DG442LDQ-T1-E3?
For technical support, including DG442LDQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442LDQ-T1-E3 requirements.
6.How does Aetrix verify that DG442LDQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG442LDQ-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 DG442LDQ-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG442LDQ-T1-E3?
All DG442LDQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG442LDQ-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 DG442LDQ-T1-E3 part is unused and in its original packaging.
Return procedure for DG442LDQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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