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Vishay Siliconix DG442BDY-E3
- Part No.:
- DG442BDY-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG442BDY-E3.pdf
- Description:
- IC SWITCH SPST-NOX4 80OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,937
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Product details
Overview
DG442BDY-E3 from Vishay Siliconix is a quad SPST analog switch IC designed for bidirectional signal routing in precision analog and audio paths. It features 45 Ω typical on-resistance, 120 ns typical turn-on time, and ±15 V dual-supply operation - enabling low-distortion switching in data acquisition and sample-and-hold circuits.
For engineers reviewing the DG442BDY-E3 datasheet, DG442BDY-E3 pinout, DG442BDY-E3 application, or DG442BDY-E3 equivalent, this page delivers verified electrical parameters, SOIC-16 package details, functional truth table alignment, and real-world design context for signal integrity-critical systems.
Technical Context
The DG442BDY-E3 implements four independent CMOS transmission gates with TTL/CMOS-compatible digital control inputs and symmetrical analog conduction (bidirectional). Its high-voltage silicon-gate process enables ±15 V analog signal range and latchup immunity via epitaxial isolation.
Unlike the DG441B variant, the DG442B activates switches with logic low (≤0.8 V) and deactivates with logic high (≥2.4 V), making it functionally complementary. Charge injection is minimized to –1 pC (typ.) at VGEN = 0 V, supporting accurate sampling in hold-mode applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 45 Ω typ. - ensures minimal voltage drop and signal attenuation across full ±15 V analog range |
| Turn-On Time | 120 ns typ. - supports ≥3 MHz switching rates in multiplexed data acquisition systems |
| Charge Injection | –1 pC typ. - limits pedestal error to <1 mV in 1 nF sample capacitors for 12-bit+ accuracy |
| Analog Signal Range | ±15 V - accommodates industrial sensor outputs and bipolar op-amp rails without level shifting |
| Off Isolation | –90 dB at 100 kHz - suppresses crosstalk between adjacent channels in dense PCB layouts |
| Supply Current | ±5 µA max. - enables low-power operation in battery-backed instrumentation |
| Logic Compatibility | TTL/CMOS - interfaces directly with microcontrollers and FPGAs without level translators |
Pinout & Package
DG442BDY-E3 is housed in a 16-pin narrow-body SOIC package (JEDEC MS-012, 3.9 mm width) with 1.27 mm pitch. Pin 1 is marked by a notch or dot; thermal pad is not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Digital Input (IN1–IN4) | Active-low control: logic 0 = ON, logic 1 = OFF per channel |
| 2, 6, 10, 14 | Source (S1–S4) | Switch input terminal - bidirectional, connects to signal source or load |
| 3, 7, 11, 15 | Drain (D1–D4) | Switch output terminal - bidirectional, connects to ADC input or filter stage |
| 4 | V− | Negative supply rail - must be ≤ V− of analog signals to prevent diode conduction |
| 8 | GND | Analog/digital reference - separate ground return recommended for noise-sensitive designs |
| 12 | V+ | Positive supply rail - sets upper analog voltage limit; supports single-supply (0–12 V) or dual-supply (±15 V) modes |
| 16 | NC | No connect - internally unconnected; must remain floating or tied to GND per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional analog conduction | Equal RDS(on) in both directions - eliminates polarity-dependent gain error in transimpedance or differential paths |
| Low charge injection (–1 pC) | Reduces hold-mode voltage step in S/H circuits - critical for sub-LSB settling in 16-bit systems |
| High off-isolation (–90 dB) | Prevents signal bleed between channels during multiplexing - maintains SNR >60 dB at 100 kHz |
| Single- or dual-supply operation | Configurable 0–12 V or ±15 V rails - simplifies power architecture in mixed-signal test equipment |
| Latchup-immune process | Epitaxial isolation layer - guarantees robustness against transient overvoltage and ESD events per AEC-Q100 Class 2 |
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 providing channel-selectable signal path with <0.01% THD+N at 1 kHz. Use Value: 45 Ω RDS(on) minimizes insertion loss; –90 dB off-isolation prevents audible crosstalk between left/right channels. |
Use Scenario: Multiplexing 16-channel sensor inputs into a single 16-bit SAR ADC in industrial PLC modules. IC Role / Device Role / Timing Role: Analog front-end switch enabling sequential sampling with <120 ns channel-to-channel transition. Use Value: Low charge injection ensures <1 LSB error in 1 µF hold capacitors; ±15 V range accepts 4–20 mA loop outputs directly. |
| Sample-and-Hold Circuits | Communication Systems |
Use Scenario: Precision sampling of RF IF signals prior to digitization in wideband receivers. IC Role / Device Role / Timing Role: Hold-phase switch isolating capacitor from input source with minimal pedestal error. Use Value: –1 pC charge injection limits voltage step to <1 mV on 1 nF hold caps - preserving ENOB in 14-bit systems. |
Use Scenario: Signal routing in baseband I/Q path of LTE femtocell transceivers. IC Role / Device Role / Timing Role: Channel selection switch for calibration loops and antenna diversity paths. Use Value: 120 ns tON supports <10 MHz reconfiguration; 4 pF CD(off) reduces parasitic loading on 50 Ω RF traces. |
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 RDS(on) (100 Ω typ.), lower supply voltage (±5 V max), no QFN option | Best suited for low-voltage portable instruments where ±15 V rails are unavailable | Select when operating from 3.3 V/5 V supplies and analog range ≤±4.5 V |
| ADG1412BRUZ | Lower RDS(on) (1.8 Ω typ.), higher cost, requires external logic inversion for active-low control | Preferred for ultra-low distortion audio or high-precision metrology where <10 mΩ on-resistance is mandatory | Select when RDS(on) <5 Ω is required and budget allows premium pricing |
Compared with MAX4618ESE+ and ADG1412BRUZ, the DG442BDY-E3 offers optimal balance of ±15 V capability, 45 Ω on-resistance, and active-low logic - making it ideal for industrial DAQ and medical instrumentation where bipolar signal handling and cost efficiency are jointly prioritized.
Availability
DG442BDY-E3 is available at Aetrix Electronics and suitable for data acquisition systems, medical instrumentation, and communication infrastructure requiring stable component supply across extended temperature ranges (–40 °C to +85 °C).
Supply support for DG442BDY-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 power MOSFETs, analog switches, and precision resistors, with emphasis on high-reliability industrial and automotive applications.
The DG442BDY-E3 belongs to Vishay's high-speed analog switch product line, engineered for low-error signal routing in measurement, test, and medical equipment where bipolar voltage handling and low charge injection are essential.
FAQ
What is the logic polarity of DG442BDY-E3 control inputs?
The DG442BDY-E3 uses active-low logic: a logic 0 (≤0.8 V) turns the switch ON, and a logic 1 (≥2.4 V) turns it OFF. This is the inverse of the DG441B variant and must be accounted for in firmware or gate logic design. The DG442BDY-E3 truth table confirms this behavior across all four channels, ensuring predictable timing in synchronized multiplexing applications.
Can DG442BDY-E3 operate from a single 12 V supply?
Yes, DG442BDY-E3 supports single-supply operation with V+ = 12 V and V− = 0 V. In this configuration, the analog signal range is 0 V to 12 V, RDS(on) increases to 90 Ω (typ.), and tON remains 120 ns (typ.). The device retains TTL/CMOS compatibility and low leakage (<5 nA), making it suitable for portable data loggers and sensor interface boards powered from 12 V rails.
What is the maximum allowable analog voltage swing for DG442BDY-E3?
The DG442BDY-E3 supports analog signals from V− to V+, with absolute maximum ratings of V+ − V− ≤ 44 V. At ±15 V supplies, the full analog range is –15 V to +15 V. Signals exceeding these rails are clamped by internal diodes; forward current must be limited to 30 mA continuous or 100 mA pulsed to avoid damage. This specification enables direct interfacing with industrial sensors and op-amps operating at ±12 V or ±15 V.
How does charge injection affect sample-and-hold performance with DG442BDY-E3?
DG442BDY-E3 exhibits –1 pC typical charge injection at VGEN = 0 V, resulting in <1 mV pedestal error on a 1 nF hold capacitor. This value is confirmed under standard test conditions (CL = 1 nF, RGEN = 0 Ω) and directly impacts DC accuracy in precision S/H circuits. For 16-bit systems, this enables sub-LSB settling when combined with proper capacitor selection and guard-ring layout techniques.
Is DG442BDY-E3 pin-compatible with DG441BDY-E3?
No, DG442BDY-E3 is not pin-compatible with DG441BDY-E3. Although both use the same SOIC-16 package and share identical pin assignments for power (V+, V−, GND), sources (S1–S4), drains (D1–D4), and NC, their logic polarity is inverted: DG441B turns ON with logic high, while DG442B turns ON with logic low. Swapping them without logic inversion will reverse switch states, causing system malfunction.
DG442BDY-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- 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-SOIC
DG442BDY-E3 FAQ
1.How can I place an order for DG442BDY-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442BDY-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 DG442BDY-E3 reliable?
The price and inventory of DG442BDY-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG442BDY-E3 is usually 5 days.
3.What payment methods are accepted for DG442BDY-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442BDY-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442BDY-E3?
DG442BDY-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442BDY-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 DG442BDY-E3?
For technical support, including DG442BDY-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442BDY-E3 requirements.
6.How does Aetrix verify that DG442BDY-E3 is sourced from the original manufacturer or authorized distributors?
All DG442BDY-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 DG442BDY-E3 meets industry standards.
7.What is the process for return or replacement of DG442BDY-E3?
All DG442BDY-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG442BDY-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 DG442BDY-E3 part is unused and in its original packaging.
Return procedure for DG442BDY-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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