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Vishay Siliconix DG442DY-E3
- Part No.:
- DG442DY-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG442DY-E3.pdf
- Description:
- IC SWITCH SPST-NOX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:325
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Product details
Overview
DG442DY-E3 from Vishay Siliconix is a quad SPST normally open (NO) CMOS analog switch IC designed for precision signal routing in instrumentation and data acquisition systems. It delivers 50 Ω typical on-resistance, 150 ns typical turn-on time, ±15 V dual-supply or 12 V single-supply operation, and -1 pC charge injection-enabling low-distortion audio switching and sample-and-hold circuitry.
For engineers reviewing the DG442DY-E3 datasheet, DG442DY-E3 pinout, DG442DY-E3 application, or DG442DY-E3 equivalent, key selection criteria include its NO configuration, SOIC-16 narrow package, guaranteed 0.5 nA max off-leakage at full temperature range, and compatibility with TTL/CMOS logic levels across -40 °C to +85 °C.
Technical Context
The DG442DY-E3 implements four independent bidirectional SPST switches built on Vishay's high-voltage silicon-gate process, featuring epitaxial latchup protection. Each channel supports symmetrical conduction and blocks signals beyond supply rails when off.
Its control logic is TTL/CMOS-compatible with defined thresholds (≤0.8 V for logic "0", ≥2.4 V for logic "1"), and it operates with single-supply (0–12 V) or dual-supply (±15 V) configurations-enabling retrofit into legacy DG202 sockets without redesign.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch type | Quad SPST, normally open (NO) - all four channels default open until enabled |
| On-resistance | 50 Ω typ. at ±15 V supplies - ensures minimal signal attenuation in precision analog paths |
| Turn-on time | 150 ns typ. (RL = 1 kΩ, CL = 35 pF) - supports high-throughput multiplexing up to ~3 MHz |
| Charge injection | -1 pC typ. - reduces pedestal error in sample-and-hold and ADC front-end applications |
| Off-leakage current | ±0.5 nA max over -40 °C to +85 °C - preserves accuracy in high-impedance sensor interfaces |
| Supply range | Single: 5–12 V; Dual: ±5 V to ±22 V - enables flexible power architecture in battery-powered and industrial systems |
| Logic compatibility | TTL/CMOS - simplifies interface with microcontrollers and FPGAs without level-shifting |
Pinout & Package
Package: 16-pin narrow SOIC (JEDEC MS-012), body dimensions 9.8–10.0 mm × 3.8–4.0 mm × 1.35–1.75 mm height, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | IN1–IN4 | Independent digital control inputs - each enables one SPST switch (NO logic: high = on) |
| 2, 6, 10, 14 | S1–S4 | Source terminals - bidirectional analog I/O nodes tied to system ground or signal return |
| 3, 7, 11, 15 | D1–D4 | Drain terminals - bidirectional analog I/O nodes connected to sensors, DACs, or amplifiers |
| 4 | V+ | Positive supply rail - accepts up to +22 V (dual) or +12 V (single) |
| 8 | V- | Negative supply rail - accepts down to -22 V (dual) or 0 V (single) |
| 12 | GND | Analog/digital reference ground - must be low-impedance for leakage and noise control |
| 16 | NC | No connect - internally unconnected; must remain floating or grounded per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional analog conduction | Equal on-resistance in both directions - eliminates polarity constraints in AC-coupled or differential signal paths |
| Low charge injection (-1 pC) | Minimizes voltage step errors during sampling - critical for 12-bit+ data acquisition accuracy |
| High off-isolation (60 dB @ 1 MHz) | Prevents crosstalk between adjacent channels - maintains signal integrity in dense multiplexer layouts |
| Single- and dual-supply operation | Eliminates need for external level shifters in mixed-rail systems - reduces BOM count and board space |
| Latchup-immune construction | Epitaxial isolation layer prevents destructive latchup - enhances reliability in noisy industrial environments |
Applications
| Audio Switching | Data Acquisition |
|---|---|
Use Scenario: Routing line-level stereo signals between multiple sources (e.g., microphone, DAC, codec) in portable audio equipment. IC Role / Device Role / Timing Role: Quad SPST NO switch providing isolated, low-distortion signal path selection under microcontroller control. Use Value: 50 Ω on-resistance and <150 ns switching ensure flat frequency response to 20 kHz and negligible inter-channel bleed. | Use Scenario: Multiplexing sensor outputs (thermocouples, strain gauges) into a shared ADC input in environmental monitoring hardware. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling with minimal offset drift and charge kickback. Use Value: -1 pC charge injection and ±0.5 nA off-leakage preserve sub-mV measurement fidelity across temperature. |
| Sample-and-Hold Circuits | Medical Instrumentation |
Use Scenario: Controlling hold capacitor charging in a precision sample-and-hold stage for ECG front-end amplifiers. IC Role / Device Role / Timing Role: Normally open switch isolating the hold capacitor during sampling phase to prevent droop and error accumulation. Use Value: Guaranteed low leakage (<0.5 nA) and symmetric on-resistance minimize settling time and pedestal error. | Use Scenario: Signal routing in portable patient monitors requiring low-power, high-reliability analog switching for biopotential inputs. IC Role / Device Role / Timing Role: Isolating electrode inputs and calibration paths while maintaining biocompatible signal integrity. Use Value: SOIC-16 package meets IPC Class 3 assembly standards; -40 °C to +85 °C rating supports clinical deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4618ESE+ | Lower on-resistance (0.5 Ω typ.), but only dual-channel; requires 2.7–5.5 V supply only | Not suitable for ±15 V or >5 V single-supply systems; better for low-voltage portable designs | Select MAX4618ESE+ only if supply is ≤5.5 V and channel count allows two devices |
| ADG1412BRUZ | Quad SPST NO, 1.3 Ω on-resistance, but higher charge injection (+2.5 pC), 12 V max supply | Superior on-resistance for precision gain-setting, but unsuitable for ±15 V or high-fidelity sample-and-hold | Choose ADG1412BRUZ when ultra-low RDS(on) outweighs charge injection sensitivity |
Compared with DG442DY-E3, MAX4618ESE+ offers lower resistance but lacks dual-supply capability and channel count, while ADG1412BRUZ trades higher charge injection for sub-ohm performance-making DG442DY-E3 optimal for ±15 V, low-leakage, and low-charge-injection requirements.
Availability
DG442DY-E3 is available at Aetrix Electronics and suitable for audio switching, data acquisition, and medical instrumentation requiring stable component supply across industrial temperature ranges and long-lifecycle programs.
Supply support for DG442DY-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 medical markets.
The DG442DY-E3 belongs to Vishay's precision analog switch product line, engineered for signal integrity in measurement, test, and healthcare systems where low leakage, low distortion, and supply flexibility are critical.
FAQ
What is the maximum supply voltage rating for DG442DY-E3?
The DG442DY-E3 supports dual supplies up to ±22 V and single supplies up to 36 V. Absolute maximum ratings specify V+ to V- ≤ 44 V, with derating above 75 °C. For reliable long-term operation, Vishay recommends staying within ±15 V dual or 12 V single supply limits per the datasheet's recommended operating conditions. DG442DY-E3 must never exceed these limits to avoid permanent damage.
Does DG442DY-E3 support single-supply operation with ground-referenced signals?
Yes, DG442DY-E3 supports true single-supply operation from 5 V to 12 V with V- tied to GND. In this mode, analog signals must stay within 0 V to V+ (e.g., 0–12 V), and logic inputs remain TTL/CMOS-compatible. The device maintains 100 Ω typical on-resistance and 300 ns typical turn-on time under 12 V single supply-verified in the datasheet's single-supply specifications table. DG442DY-E3 is widely used in battery-powered data loggers for this reason.
How does the charge injection of DG442DY-E3 impact sample-and-hold accuracy?
DG442DY-E3 specifies -1 pC typical charge injection, measured with CL = 1 nF and VS = 0 V. In a 100 nF hold capacitor, this induces a 10 µV pedestal error-well within tolerance for 12-bit (≈2.4 mV LSB at 10 V full scale) and acceptable for many 14-bit systems. This value is guaranteed by design and validated across temperature. DG442DY-E3 is explicitly recommended for sample-and-hold circuits in Vishay's Application Note 826.
Is DG442DY-E3 pin-compatible with older DG202 series switches?
Yes, DG442DY-E3 is a direct socket upgrade for DG202 in 16-pin SOIC and DIP packages. Pin functions match exactly: INx, Sx, Dx, V+, V-, GND, and NC positions align. DG442DY-E3 improves on DG202 with lower on-resistance (50 Ω vs. 90 Ω), faster switching (150 ns vs. 300 ns), and reduced charge injection (-1 pC vs. -5 pC). No PCB changes are required when replacing DG202 with DG442DY-E3.
What is the off-isolation performance of DG442DY-E3 at 1 MHz?
DG442DY-E3 provides 60 dB minimum off-isolation at 1 MHz, measured with RL = 50 Ω and CL = 5 pF. This specification ensures strong rejection of coupled signals between adjacent channels in high-density multiplexer designs. Off-isolation remains >40 dB up to 10 MHz per typical characteristics curves. DG442DY-E3 achieves this via optimized internal layout and high-voltage silicon-gate process, making it suitable for RF-adjacent analog routing.
DG442DY-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):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- 4Ohm (Max)
- Voltage - Supply, Single (V+):
- 12V
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 250ns, 210ns
- -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
DG442DY-E3 FAQ
1.How can I place an order for DG442DY-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442DY-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 DG442DY-E3 reliable?
The price and inventory of DG442DY-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG442DY-E3 is usually 5 days.
3.What payment methods are accepted for DG442DY-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442DY-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442DY-E3?
DG442DY-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442DY-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 DG442DY-E3?
For technical support, including DG442DY-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442DY-E3 requirements.
6.How does Aetrix verify that DG442DY-E3 is sourced from the original manufacturer or authorized distributors?
All DG442DY-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 DG442DY-E3 meets industry standards.
7.What is the process for return or replacement of DG442DY-E3?
All DG442DY-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG442DY-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 DG442DY-E3 part is unused and in its original packaging.
Return procedure for DG442DY-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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