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Vishay Siliconix DG442BDN-T1-E4
- Part No.:
- DG442BDN-T1-E4
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
DG442BDN-T1-E4.pdf
- Description:
- IC SWITCH SPST-NOX4 80OHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,129
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Product details
Overview
DG442BDN-T1-E4 from Vishay Siliconix is a quad SPST analog switch IC designed for precision signal routing in dual-supply systems. It features 45 Ω typical on-resistance, 120 ns typical turn-on time, and -1 pC charge injection-enabling low-distortion switching in sample-and-hold and data acquisition circuits.
For engineers reviewing the DG442BDN-T1-E4 datasheet, DG442BDN-T1-E4 pinout, DG442BDN-T1-E4 application, or DG442BDN-T1-E4 equivalent, key selection criteria include guaranteed dual-supply operation (±15 V), channel-to-channel crosstalk of -95 dB, off-isolation of -90 dB at 100 kHz, and QFN-16 package compatibility with high-density PCB layouts.
Technical Context
The DG442BDN-T1-E4 implements complementary MOSFET switch pairs per channel with epitaxial latchup protection and rail-to-rail analog signal handling. Its TTL/CMOS-compatible control inputs accept logic thresholds of ≤0.8 V (low) and ≥2.4 V (high) across -40 °C to +85 °C.
Each channel operates bidirectionally with matched on-resistance (ΔRDS(on) ≤ 4 Ω max) and blocks signals beyond supply rails via internal clamping diodes. The device supports both dual-supply (±15 V) and single-supply (12 V) configurations, with leakage currents limited to ±0.01 nA at full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 45 Ω typ. - ensures minimal voltage drop and signal attenuation in precision analog paths |
| Turn-On Time | 120 ns typ. - enables high-throughput sampling in data acquisition systems up to ~5 MHz effective rate |
| Charge Injection | -1 pC typ. - reduces pedestal error in sample-and-hold circuits to sub-mV levels |
| Off Isolation | -90 dB at 100 kHz - suppresses coupling between inactive and active channels in multi-channel systems |
| Crosstalk | -95 dB - maintains signal integrity in adjacent switched paths without guard traces |
| Analog Signal Range | ±15 V - supports full-rail operation with dual supplies, eliminating level-shifting requirements |
| Supply Current | ±5 µA max - enables low-power operation in battery-backed instrumentation |
Pinout & Package
Package: QFN-16 (4 mm × 4 mm, 0.65 mm pitch, Variation 1 per Document 71921), thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | IN1–IN4 | Digital control inputs; active-high for DG442B (logic '1' = switch ON) |
| 5, 6, 13, 14 | S1–S4 | Switch source terminals - bidirectional analog I/O nodes |
| 7, 8, 15, 16 | D1–D4 | Switch drain terminals - bidirectional analog I/O nodes, matched to S pins |
| 9 | V− | Negative supply rail - must be connected for dual-supply operation; clamps analog inputs below V− −2 V |
| 10 | GND | Digital ground reference - separate from analog return; decoupling required near pin |
| 11 | V+ | Positive supply rail - supports up to +15 V; clamps analog inputs above V+ +2 V |
| 12 | NC | No connect - internally floating; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports input signals from V− to V+ without clipping or distortion in dual-supply mode |
| Latchup immunity | Epitaxial layer prevents destructive latchup under transient overvoltage conditions |
| Bidirectional conduction | Identical RDS(on) and dynamic performance regardless of signal flow direction (S→D or D→S) |
| TTL/CMOS logic interface | Direct connection to microcontroller GPIOs without level shifters or pull-up resistors |
| Low power consumption | 1 mW typical total supply power - suitable for portable medical and test equipment |
Applications
| Audio Switching | Data Acquisition |
|---|---|
Use Scenario: Routing line-level stereo signals between multiple codecs and amplifiers in professional audio mixers. IC Role / Device Role / Timing Role: Quad SPST switch managing four independent analog paths with simultaneous mute/unmute capability. Use Value: 45 Ω on-resistance and -95 dB crosstalk preserve channel separation and dynamic range without external buffering. | Use Scenario: Multiplexing sensor outputs (thermocouples, strain gauges) into a shared ADC in industrial PLC modules. IC Role / Device Role / Timing Role: Precision analog multiplexer enabling sequential sampling with minimal settling error. Use Value: -1 pC charge injection and ±0.01 nA leakage ensure <1 LSB error in 16-bit systems over full temperature range. |
| Sample-and-Hold Circuits | Communication Systems |
Use Scenario: Capturing fast transient waveforms in oscilloscope front-ends using switched-capacitor hold networks. IC Role / Device Role / Timing Role: High-speed sampling switch controlling capacitor charging phase with precise timing control. Use Value: 120 ns tON and rail-to-rail analog range allow accurate capture of ±10 V signals at >1 MSPS effective rates. | Use Scenario: Signal path selection in RF transceiver baseband sections, including filter bank switching and I/Q path routing. IC Role / Device Role / Timing Role: Low-distortion analog switch isolating receive and transmit chains during TDD operation. Use Value: -90 dB off-isolation at 100 kHz suppresses LO feedthrough and intermodulation in narrowband receivers. |
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 |
|---|---|---|---|
| MAX4618ESE+ | Higher on-resistance (100 Ω typ.), slower tON (200 ns typ.), but offers fault-protection and overvoltage tolerance | Better suited for industrial sensors exposed to field wiring faults | Select when robustness against ±20 V transients outweighs speed/resistance requirements |
| ADG1412BRUZ | Lower on-resistance (1.8 Ω typ.), higher supply current (200 µA), requires external VLOGIC supply | Optimized for low-distortion audio and precision instrumentation where RDS(on) dominates THD | Select when ultra-low on-resistance is critical and board space allows additional decoupling |
Compared with MAX4618ESE+ and ADG1412BRUZ, the DG442BDN-T1-E4 delivers optimal balance of speed, on-resistance, and power efficiency in standard ±15 V dual-supply systems-without requiring fault protection or auxiliary logic supplies.
Availability
DG442BDN-T1-E4 is available at Aetrix Electronics and suitable for data acquisition, medical instrumentation, automatic test equipment, and communication systems requiring stable component supply and long-term lifecycle support.
Supply support for DG442BDN-T1-E4 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 power MOSFETs, analog switches, and precision passive components.
The DG442B family was engineered for high-fidelity analog signal routing in test and measurement equipment, emphasizing low charge injection, tight RDS(on) matching, and rail-to-rail operation in dual-supply environments.
FAQ
What is the maximum analog signal voltage range supported by DG442BDN-T1-E4?
The DG442BDN-T1-E4 supports an analog signal range of ±15 V when operated with dual supplies (V+ = +15 V, V− = −15 V). This rail-to-rail capability allows direct interfacing with op-amps and sensors without level shifting. Signals exceeding V+ +2 V or falling below V− −2 V are clamped by internal diodes-so absolute maximum analog voltage is bounded by the supply rails plus diode forward drop.
Does DG442BDN-T1-E4 require separate logic and analog supplies?
No, DG442BDN-T1-E4 does not require separate logic and analog supplies. Its digital inputs are TTL/CMOS-compatible and operate directly from the same V+ and V− rails used for analog switching. Logic thresholds are defined as VINL ≤ 0.8 V and VINH ≥ 2.4 V relative to GND, and no external VLOGIC supply is needed-simplifying power architecture in systems using ±15 V analog rails.
How does DG442BDN-T1-E4 differ from DG441B in function and pinout?
The DG442BDN-T1-E4 is the complement of DG441B: its truth table is inverted-logic high turns switches ON (DG442B), while logic high turns them OFF (DG441B). Pinout and package are identical across both families, enabling layout reuse. Both share identical electrical specs (RDS(on), tON, Q, etc.), making DG442BDN-T1-E4 suitable where active-high control simplifies MCU GPIO assignment or eliminates external inverters.
Can DG442BDN-T1-E4 operate from a single 12 V supply?
Yes, DG442BDN-T1-E4 supports single-supply operation at V+ = 12 V and V− = 0 V. In this configuration, the analog signal range is 0 V to 12 V, on-resistance increases to 90 Ω typ., and turn-on time remains 120 ns typ. All digital interface characteristics and leakage specifications are preserved-making it viable for portable instrumentation and automotive body-control modules where dual supplies are impractical.
Is thermal pad connection required for DG442BDN-T1-E4 in QFN-16 package?
Yes, the exposed thermal pad (pin 0) of the DG442BDN-T1-E4 QFN-16 package must be soldered to a PCB thermal plane for reliable operation. Per Vishay Document 71921, the pad improves thermal resistance by >30 % and prevents junction temperature exceedance under sustained 100 mA channel current. Failure to connect the pad may cause premature parametric drift or thermal shutdown in high-duty-cycle applications.
DG442BDN-T1-E4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 80Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm
- Voltage - Supply, Single (V+):
- 13V ~ 36V
- Voltage - Supply, Dual (V±):
- ±7V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 220ns, 120ns
- -3db Bandwidth:
- -
- Charge Injection:
- -1pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 4pF
- 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-QFN (4x4)
DG442BDN-T1-E4 FAQ
1.How can I place an order for DG442BDN-T1-E4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442BDN-T1-E4 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 DG442BDN-T1-E4 reliable?
The price and inventory of DG442BDN-T1-E4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG442BDN-T1-E4 is usually 5 days.
3.What payment methods are accepted for DG442BDN-T1-E4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442BDN-T1-E4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442BDN-T1-E4?
DG442BDN-T1-E4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442BDN-T1-E4 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 DG442BDN-T1-E4?
For technical support, including DG442BDN-T1-E4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442BDN-T1-E4 requirements.
6.How does Aetrix verify that DG442BDN-T1-E4 is sourced from the original manufacturer or authorized distributors?
All DG442BDN-T1-E4 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 DG442BDN-T1-E4 meets industry standards.
7.What is the process for return or replacement of DG442BDN-T1-E4?
All DG442BDN-T1-E4 units undergo pre-shipment inspection (PSI). If there is an issue with DG442BDN-T1-E4, 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 DG442BDN-T1-E4 part is unused and in its original packaging.
Return procedure for DG442BDN-T1-E4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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