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Vishay Siliconix DG442DY-T1-E3
- Part No.:
- DG442DY-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG442DY-T1-E3.pdf
- Description:
- IC SWITCH SPST-NOX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,196
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Product details
Overview
DG442DY-T1-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 operation, and -1 pC charge injection - enabling low-distortion switching of audio, sensor, and sample-and-hold signals.
For engineers reviewing the DG442DY-T1-E3 datasheet, DG442DY-T1-E3 pinout, DG442DY-T1-E3 application, or DG442DY-T1-E3 equivalent, key selection criteria include its NO configuration, SOIC-16 narrow-body package, guaranteed 0.5 nA max off-leakage at full temperature range, TTL/CMOS-compatible control inputs, and suitability for retrofitting legacy DG202 sockets.
Technical Context
The DG442DY-T1-E3 implements four independent bidirectional analog switches fabricated using Vishay's high-voltage silicon-gate process, with epitaxial latchup protection. Each channel operates symmetrically - conducting equally well in both directions when on, and blocking signals beyond supply rails when off.
Its logic interface accepts standard TTL/CMOS voltage levels (0.8 V low, 2.4 V high), supports single-supply (5–36 V) and dual-supply (±5 V to ±22 V) configurations, and features minimized charge injection (-1 pC typ.) critical for sample-and-hold accuracy and low pedestal error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch type | Quad SPST, normally open (NO) - all four channels default open until enabled |
| On-resistance (RDS(on)) | 50 Ω typ. at ±15 V supplies - ensures minimal signal attenuation and gain error in precision gain-setting networks |
| Turn-on time (ton) | 150 ns typ. - enables fast multiplexing in high-throughput data acquisition up to ~3 MHz effective switching rate |
| Charge injection | -1 pC typ. - reduces hold-mode voltage step error in sample-and-hold circuits below 1 mV for 1 nF hold capacitor |
| Off-leakage current | ±0.5 nA max over -40 °C to +85 °C - preserves signal integrity in high-impedance sensor front-ends |
| Supply range | Single: 5–36 V; Dual: ±5 V to ±22 V - supports industrial, medical, and battery-powered operation without level-shifting |
| Logic compatibility | TTL/CMOS - interfaces directly with microcontrollers, FPGAs, and DACs without external buffers |
Pinout & Package
Package: 16-pin narrow SOIC (JEDEC MS-012, 3.9 × 9.9 mm body, 1.27 mm pitch). RoHS-compliant, lead-free, tape-and-reel (T1-E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control inputs | Active-high logic; drive corresponding switch ON (NO function); compatible with 0.8 V / 2.4 V thresholds |
| S1–S4 | Source terminals | Analog inputs/outputs; bidirectional conduction path when switch is ON |
| D1–D4 | Drain terminals | Analog inputs/outputs; electrically identical to Sx in ON state; clamped by internal diodes beyond supply rails |
| V+ | Positive supply rail | Bias for P-channel MOSFETs; sets upper analog signal limit (e.g., +15 V) |
| V- | Negative supply rail | Bias for N-channel MOSFETs; sets lower analog signal limit (e.g., -15 V) |
| GND | Ground reference | Logic ground and substrate reference; must be connected even in dual-supply mode |
| NC | No-connect pins | Pins 9, 10, 11, 13, 14, 15 - internally unconnected; leave floating or grounded per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance matching | ≤5 Ω max mismatch between channels - maintains consistent gain/attenuation across multi-channel signal paths |
| High off-isolation | 60 dB min at 1 MHz - suppresses crosstalk between adjacent switched channels in dense PCB layouts |
| Single-supply capability | Operates from 5 V to 36 V - eliminates need for dual-rail supplies in portable and industrial systems |
| Latchup immunity | Epitaxial layer isolation - prevents destructive latchup under transient overvoltage or ESD stress |
| DG202 upgrade path | PIN-TO-PIN compatible with DG202 in SOIC-16 - enables drop-in replacement without PCB redesign |
Applications
| Audio Switching | Data Acquisition |
|---|---|
Use Scenario: Routing line-level stereo signals between multiple input sources (e.g., mic, instrument, digital audio) in professional audio mixers. IC Role / Device Role / Timing Role: Quad SPST NO switch providing isolated, low-crosstalk signal paths with <100 ns switching latency. Use Value: 50 Ω RDS(on) minimizes insertion loss; -1 pC charge injection prevents audible pop/click during mute transitions. | Use Scenario: Multiplexing analog sensor outputs (thermocouples, strain gauges) into a shared ADC in industrial PLC modules. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling of up to four high-impedance sensors with minimal settling error. Use Value: 0.5 nA max off-leakage preserves microvolt-level sensor accuracy; 150 ns ton supports >10 kSPS aggregate sampling rates. |
| Sample-and-Hold Circuits | Medical Instrumentation |
Use Scenario: Controlling the sampling gate in a precision analog front-end for ECG or EEG signal conditioning. IC Role / Device Role / Timing Role: Normally open switch isolating the hold capacitor during acquisition phase; triggered by precise timing controller. Use Value: -1 pC charge injection limits hold-step error to <100 µV for 100 pF hold capacitors - critical for 16-bit+ resolution. | Use Scenario: Signal routing in portable patient monitors requiring low power, high reliability, and IEC 60601-1 compliance support. IC Role / Device Role / Timing Role: Isolating diagnostic sensor inputs (SpO₂, NIBP, temperature) from shared processing circuitry during calibration or fault conditions. Use Value: ±22 V dual-supply rating accommodates isolated sensor excitation; SOIC-16 package meets creepage/clearance requirements for reinforced insulation. |
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 RDS(on) (0.9 Ω typ.), but only dual-channel; requires 2.7–5.5 V supply; no ±15 V operation | Best for low-voltage, high-speed digital multiplexing - not suitable for bipolar signal routing or high-voltage industrial use | Select DG442DY-T1-E3 when ±15 V analog signal handling, quad-channel count, and DG202 socket compatibility are required. |
| ADG1412BRUZ | 4-channel, NO, 1.3 Ω RDS(on), but 16-V max supply; higher charge injection (+2.5 pC); LFCSP-16 package | Optimized for low-RDS(on) in compact space-constrained designs - lacks high-voltage tolerance and SOIC-16 retrofi tability | Choose DG442DY-T1-E3 for legacy system upgrades, wide supply flexibility, and proven reliability in medical/harsh environments. |
Compared with MAX4618ESE+ and ADG1412BRUZ, the DG442DY-T1-E3 uniquely balances high-voltage bipolar operation, quad-channel integration, DG202 pin compatibility, and ultra-low charge injection - making it the preferred choice for upgrading existing instrumentation platforms while maintaining signal fidelity across ±15 V analog ranges.
Availability
DG442DY-T1-E3 is available at Aetrix Electronics and suitable for audio switching, data acquisition, and medical instrumentation requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for DG442DY-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.
The DG442DY-T1-E3 belongs to Vishay's precision analog switch product line, engineered for demanding instrumentation, test equipment, and medical applications where low distortion, high isolation, and long-term parametric stability are essential.
FAQ
What is the maximum analog signal voltage range supported by the DG442DY-T1-E3?
The DG442DY-T1-E3 supports analog signals from V− to V+, with absolute maximum ratings of ±22 V dual supply or 36 V single supply. Under normal operation with ±15 V supplies, the guaranteed analog signal range is ±15 V - enabling direct interfacing with industrial transducers and op-amp stages without external clamping.
Does the DG442DY-T1-E3 require external pull-up or pull-down resistors on its INx control pins?
No, the DG442DY-T1-E3 does not require external biasing on IN1–IN4. Its TTL/CMOS-compatible inputs have guaranteed switching thresholds (≤0.8 V for logic low, ≥2.4 V for logic high) and leakage currents below ±500 nA across temperature - allowing direct connection to microcontroller GPIOs or FPGA outputs without additional components.
Can the DG442DY-T1-E3 operate from a single 12 V supply in data acquisition systems?
Yes, the DG442DY-T1-E3 fully supports single-supply operation from 5 V to 36 V. At 12 V, it delivers 100 Ω typical on-resistance and 300 ns typical turn-on time - suitable for DC-coupled sensor multiplexing where bipolar signal swing is not required, such as thermistor or potentiometer readouts.
How does the DG442DY-T1-E3 prevent latchup in high-noise industrial environments?
The DG442DY-T1-E3 incorporates an epitaxial layer in its high-voltage silicon-gate process that inherently blocks parasitic SCR formation. This design eliminates latchup susceptibility even under transient overvoltage events or ESD exposure - a critical reliability feature confirmed in Vishay's package-level qualification testing per JESD22 standards.
Is the DG442DY-T1-E3 pin-compatible with the DG442DY-E3 variant?
Yes, DG442DY-T1-E3 and DG442DY-E3 share identical pinout, electrical specifications, and SOIC-16 narrow-body package dimensions. The only difference is packaging format: T1-E3 denotes 2,500-piece tape-and-reel, while E3 indicates bulk packaging - both are functionally and mechanically interchangeable in PCB assembly.
DG442DY-T1-E3 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):
- 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-T1-E3 FAQ
1.How can I place an order for DG442DY-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442DY-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 DG442DY-T1-E3 reliable?
The price and inventory of DG442DY-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 DG442DY-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG442DY-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442DY-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442DY-T1-E3?
DG442DY-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442DY-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 DG442DY-T1-E3?
For technical support, including DG442DY-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442DY-T1-E3 requirements.
6.How does Aetrix verify that DG442DY-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG442DY-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 DG442DY-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG442DY-T1-E3?
All DG442DY-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG442DY-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 DG442DY-T1-E3 part is unused and in its original packaging.
Return procedure for DG442DY-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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