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Vishay Siliconix DG442LEDY-GE3
- Part No.:
- DG442LEDY-GE3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG442LEDY-GE3.pdf
- Description:
- IC SWITCH SPST-NOX4 26OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:548
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Product details
Overview
DG442LEDY-GE3 from Vishay Siliconix is a quad single-pole-single-throw (SPST) analog switch with normally open (NO) configuration, designed for precision signal routing in data acquisition and instrumentation systems. It delivers 16 Ω typical on-resistance, 18 ns typical turn-on time, and <8 pC charge injection over full signal swing - enabling low-distortion switching of ±5 V, +12 V, or +3 V analog signals in sample-and-hold and ADC input circuits.
For engineers reviewing the DG442LEDY-GE3 datasheet, DG442LEDY-GE3 pinout, DG442LEDY-GE3 application, or DG442LEDY-GE3 equivalent, key selection criteria include verified on-resistance matching across channels (≤0.5 Ω), guaranteed off-isolation (>68 dB at 1 MHz), dual-supply compatibility (±3 V to ±8 V), and SOIC-16 package thermal derating (12 mW/°C above 75 °C).
Technical Context
The DG442LEDY-GE3 implements four independent bidirectional analog switches controlled by TTL/CMOS-compatible logic inputs. Each channel conducts equally well in both directions when enabled and blocks analog voltages up to the supply rails when disabled. Its architecture minimizes charge injection via matched transistor pairs and low-parasitic layout, critical for maintaining accuracy in high-resolution sampling.
It supports single-supply operation from 3 V to 16 V and dual-supply operation from ±3 V to ±8 V. The device features internal clamping diodes that limit analog signal excursions beyond V+ or V−, requiring external current limiting per datasheet Note a. Logic thresholds are fixed at ≤0.8 V (low) and ≥2.4 V (high) across all supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RDS(on)) | 16 Ω typ. at +12 V single supply - ensures minimal voltage drop and signal attenuation in precision gain-setting or sensor interface paths. |
| Turn-on time (tON) | 18 ns typ. at +12 V - enables fast multiplexing in high-speed data acquisition without introducing timing skew between channels. |
| Charge injection | <8 pC over full analog range - prevents output voltage glitches in sample-and-hold circuits and maintains DC accuracy in programmable-gain amplifiers. |
| Off-isolation (OIRR) | 68.4 dB at 1 MHz - suppresses crosstalk between active and inactive channels in multi-signal routing applications like audio/video switching. |
| Analog signal range | 0 to +12 V (single supply) or ±5 V (dual supply) - supports direct interfacing with industrial sensors, medical front-ends, and battery-powered instrumentation. |
| Leakage current (IS(off)) | <1 nA max at room temperature - preserves signal integrity in high-impedance measurement nodes such as pH probes or thermocouple amplifiers. |
| Supply voltage range | +3 V to +16 V single or ±3 V to ±8 V dual - allows flexible integration into mixed-voltage systems without level-shifting circuitry. |
Pinout & Package
Package: 16-pin narrow-body SOIC (SO-16 AS), JEDEC MS-012 compliant, body dimensions 9.8–10.0 mm × 3.8–4.0 mm, lead pitch 1.27 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (IN1–IN4) | Digital control input | Active-high logic inputs; drive corresponding switch ON when ≥2.4 V (NO function). |
| 5, 6, 12, 13 (S1–S4) | Source terminal | Analog input/output node; bidirectional conduction path when switch is ON. |
| 7, 8, 11, 10 (D1–D4) | Drain terminal | Analog input/output node; electrically identical to source; no polarity dependence. |
| 9 (GND) | Ground reference | Logic ground return; must be connected to system ground for proper threshold referencing. |
| 14 (V−) | Negative supply rail | Required for dual-supply operation; tied to 0 V in single-supply mode. |
| 15 (V+) | Positive supply rail | Primary power rail; sets analog signal ceiling and logic high threshold. |
| 16 (NC) | No connect | Internally unconnected pin; must remain floating or grounded per PCB layout best practices. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional analog conduction | Enables symmetric signal routing in AC-coupled or differential topologies without polarity constraints. |
| TTL/CMOS logic compatibility | Eliminates need for external level shifters when interfacing with microcontrollers or FPGAs operating at 3.3 V or 5 V. |
| Low parasitic capacitance | CD(ON) = 15 pF and CS(OFF) = 5 pF - minimizes bandwidth degradation and settling time in RF-adjacent signal paths. |
| Guaranteed on-resistance match | ΔRDS(on) ≤ 0.5 Ω - ensures consistent gain scaling across multiple switched resistor networks in programmable amplifiers. |
| Clamped analog inputs | Internal ESD diodes protect against overvoltage transients up to ±0.3 V beyond rails, reducing need for external protection components. |
Applications
| Automatic Test Equipment (ATE) | Data Acquisition Systems |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs into a shared ADC channel during production line testing. IC Role / Device Role / Timing Role: Quad SPST switch routing analog outputs from thermistors, strain gauges, and RTDs to a single precision ADC. Use Value: 16 Ω RDS(on) and <8 pC charge injection preserve measurement resolution across 24-bit ADCs without calibration overhead. | Use Scenario: Isolating unused signal paths in modular DAQ chassis to prevent loading and crosstalk. IC Role / Device Role / Timing Role: Channel enable/disconnect element in front-end signal conditioning stage before programmable gain amplifier. Use Value: >68 dB off-isolation at 1 MHz ensures adjacent channel signals do not corrupt active measurements in multi-channel synchronized sampling. |
| Medical Instrumentation | Audio Signal Routing |
Use Scenario: Selecting between ECG electrode configurations (RA/LA/LL) in portable patient monitors. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating biopotential inputs during lead-off detection cycles. Use Value: <1 nA off-leakage prevents DC offset drift in high-gain instrumentation amplifiers used for sub-mV bio-signal amplification. | Use Scenario: Muting or routing line-level stereo signals in professional audio mixers. IC Role / Device Role / Timing Role: Bidirectional analog gate controlling signal path between preamp and A/D converter stages. Use Value: 18 ns tON and matched RDS(on) ensure glitch-free muting transitions and balanced channel response in real-time audio processing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1412BRUZ | Higher on-resistance (1.8 Ω typ. at ±15 V), lower charge injection (0.2 pC), 16-pin TSSOP only | Better suited for ultra-low-distortion applications but requires higher supply voltage and lacks SOIC packaging | Select ADG1412BRUZ only if sub-pC charge injection is mandatory and ±15 V supplies are available. |
| MAX4617ESA+ | Lower on-resistance (6 Ω typ. at +5 V), slower switching (75 ns tON), SOIC-8 package (dual-channel only) | Requires two devices for quad functionality; better for cost-sensitive, low-voltage (<5 V) portable designs | Choose MAX4617ESA+ when board space permits dual SOIC-8 placement and 5 V operation suffices. |
Compared with DG442LEDY-GE3, ADG1412BRUZ offers superior charge injection performance but demands higher voltage headroom and lacks SOIC-16 availability, while MAX4617ESA+ reduces on-resistance at the expense of speed and channel count - making DG442LEDY-GE3 optimal for balanced performance in industrial and medical SOIC-based designs.
Availability
DG442LEDY-GE3 is available at Aetrix Electronics and suitable for automatic test equipment, medical instrumentation, and data acquisition systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for DG442LEDY-GE3 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, and precision resistors.
The DG442LEDY-GE3 belongs to Vishay's DG44xLE family of monolithic quad analog switches, engineered for low-error signal routing in instrumentation, medical, and industrial systems where charge injection, leakage, and on-resistance matching directly impact measurement fidelity.
FAQ
What is the maximum analog signal voltage range supported by the DG442LEDY-GE3?
The DG442LEDY-GE3 supports analog signals from 0 V to +12 V under single-supply operation and ±5 V under dual-supply operation. When operated at ±5 V, the full analog range extends from –5 V to +5 V. Exceeding these limits triggers internal clamping diodes, requiring external current limiting per datasheet Note a to avoid damage.
Does the DG442LEDY-GE3 require external pull-up or pull-down resistors on its digital control inputs?
No, the DG442LEDY-GE3 does not require external pull-up or pull-down resistors. Its digital inputs are TTL/CMOS compatible with defined thresholds (≤0.8 V for logic low, ≥2.4 V for logic high) and exhibit low input current (±1.5 μA max). Direct connection to microcontroller GPIOs or FPGA I/O banks is sufficient for reliable switching control of the DG442LEDY-GE3.
How does the DG442LEDY-GE3 differ from the DG441LE variant?
The DG442LEDY-GE3 is a normally open (NO) quad SPST switch, while the DG441LE is normally closed (NC). In the DG442LEDY-GE3, all four switches remain open (non-conductive) until a logic high is applied to their respective INx pins. This functional difference determines fail-safe behavior in safety-critical signal paths - DG442LEDY-GE3 defaults to isolation, whereas DG441LE defaults to continuity.
Can the DG442LEDY-GE3 operate reliably at 3 V single supply?
Yes, the DG442LEDY-GE3 is fully specified for 3 V single-supply operation, with RDS(on) = 71 Ω typ. and tON = 141 ns typ. at room temperature. While on-resistance increases and switching slows versus +12 V operation, the device maintains guaranteed leakage (<1 nA) and charge injection (2 pC typ.), making it viable for low-power portable instrumentation where supply voltage headroom is constrained.
Is thermal derating required for the DG442LEDY-GE3 in continuous operation?
Yes, thermal derating is required above 75 °C ambient. For the SOIC-16 package (DG442LEDY-GE3), power dissipation must be reduced by 12 mW per °C above 75 °C, as specified in Absolute Maximum Ratings. This ensures junction temperature remains within safe limits during sustained operation in industrial enclosures or high-density PCB layouts.
DG442LEDY-GE3 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):
- 26Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 3V ~ 16V
- Voltage - Supply, Dual (V±):
- ±3V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 60ns, 35ns
- -3db Bandwidth:
- -
- Charge Injection:
- 6.6pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 6pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -114dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG442LEDY-GE3 FAQ
1.How can I place an order for DG442LEDY-GE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442LEDY-GE3 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 DG442LEDY-GE3 reliable?
The price and inventory of DG442LEDY-GE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG442LEDY-GE3 is usually 5 days.
3.What payment methods are accepted for DG442LEDY-GE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442LEDY-GE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442LEDY-GE3?
DG442LEDY-GE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442LEDY-GE3 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 DG442LEDY-GE3?
For technical support, including DG442LEDY-GE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442LEDY-GE3 requirements.
6.How does Aetrix verify that DG442LEDY-GE3 is sourced from the original manufacturer or authorized distributors?
All DG442LEDY-GE3 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 DG442LEDY-GE3 meets industry standards.
7.What is the process for return or replacement of DG442LEDY-GE3?
All DG442LEDY-GE3 units undergo pre-shipment inspection (PSI). If there is an issue with DG442LEDY-GE3, 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 DG442LEDY-GE3 part is unused and in its original packaging.
Return procedure for DG442LEDY-GE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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