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Vishay Siliconix DG418LEDQ-T1-GE3
- Part No.:
- DG418LEDQ-T1-GE3
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG418LEDQ-T1-GE3.pdf
- Description:
- IC SWITCH SPST X 1 9OHM 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:412
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Product details
Overview
DG418LEDQ-T1-GE3 from Vishay Siliconix is a single-pole single-throw (SPST) normally open (NO) analog switch fabricated in advanced CMOS technology, operating from +3 V to +16 V single supply or ±3 V to ±8 V dual supply, with 6 Ω on-resistance at +12 V, 20 ns turn-on time, and −40 °C to +85 °C temperature range - used for precision signal routing in medical instrumentation and automated test equipment.
For engineers reviewing the DG418LEDQ-T1-GE3 datasheet, DG418LEDQ-T1-GE3 pinout, DG418LEDQ-T1-GE3 application, or DG418LEDQ-T1-GE3 equivalent, key selection criteria include guaranteed 6 Ω RDS(on) at +12 V/±5 V, break-before-make–free SPST topology, MSOP-8 package compatibility, and low 26 pC charge injection for sample-and-hold integrity.
Technical Context
The DG418LEDQ-T1-GE3 implements a single-channel SPST NO switch with bidirectional conduction, full rail-to-rail analog signal handling (VANALOG = V− to V+), and CMOS/TTL-compatible control logic that accepts inputs up to V+. It uses break-before-make–free switching action, distinguishing it from the DG419LE SPDT variant.
Designed as a lower-voltage pin-for-pin compatible companion to the industry-standard DG418, it maintains identical functional pinout and timing behavior across supply voltages (+3 V, +5 V, +12 V, ±5 V), with leakage currents specified down to ±0.002 nA and off-isolation of −68 dB at 1 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch type | SPST, normally open (NO) - enables/disables one analog path without signal inversion or cross-conduction risk |
| On-resistance (RDS(on)) | 6 Ω max at +12 V, VCOM = 2 V/9 V - ensures minimal signal attenuation and voltage drop in precision DC/low-frequency paths |
| Turn-on time (tON) | 20 ns typ. (RL = 300 Ω, CL = 35 pF) - supports high-speed multiplexing in data acquisition systems up to ~15 MHz effective bandwidth |
| Charge injection | 26 pC typ. - limits voltage glitch in sample-and-hold circuits; critical for <12-bit ADC front-end accuracy |
| Analog signal range | 0 to +12 V (single supply) or −5 V to +5 V (dual supply) - supports full rail-to-rail input/output swing without clamping |
| Supply range | +3 V to +16 V single or ±3 V to ±8 V dual - enables operation from Li-ion battery (3.3 V), industrial 5 V, or 12 V systems |
| Operating temperature | −40 °C to +85 °C - qualified for industrial and medical environments with no derating required up to 85 °C |
Pinout & Package
Package: 8-pin MSOP (Mini Small Outline Package), 3.0 mm × 3.0 mm body, 0.65 mm pitch, JEDEC MO-187 variant - optimized for space-constrained PCB layouts while maintaining thermal performance (320 mW power dissipation).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC / NO | No-connect / Normally Open terminal - connects to COM only when IN = low; unused pin must remain unconnected |
| 2 | COM | Common analog terminal - bidirectional I/O node; carries full analog signal range (V− to V+) |
| 3 | V− | Negative supply rail - required for dual-supply operation; tied to GND in single-supply mode |
| 4 | GND | Digital ground reference - separate from analog return; must be connected even in single-supply configuration |
| 5 | IN | Digital control input - active-low logic (IN = low → switch ON); CMOS/TTL compatible; accepts voltage up to V+ |
| 6 | V+ | Positive supply rail - powers analog and digital sections; must be decoupled locally with 0.1 μF ceramic capacitor |
| 7 | VL | Logic supply reference - tied to V+ for standard operation; enables independent logic level setting if needed |
| 8 | NC / NO | No-connect / Normally Open terminal - duplicate of Pin 1; electrically identical and must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog range | VANALOG = V− to V+ - preserves full dynamic range of sensors, DACs, and op-amp outputs without clipping |
| Low on-resistance flatness | 6 Ω max across 0–12 V signal swing - minimizes gain error and THD in audio and instrumentation amplifiers |
| Ultra-low leakage | ±2 nA max off-leakage (ICOM(off)) - prevents drift in high-impedance sensor interfaces and long-time-constant filters |
| Fast, low-glitch switching | 20 ns tON, 15 ns tOFF, 26 pC QINJ - enables accurate sampling in 1 MSPS data acquisition systems |
| Supply flexibility | +3 V to +16 V single or ±3 V to ±8 V dual - supports portable, industrial, and legacy 12 V designs without level-shifting |
Applications
| Medical Instrumentation | Data Acquisition Systems |
|---|---|
|
Use Scenario: Multiplexing ECG electrode signals into a 16-bit sigma-delta ADC front end. IC Role / Device Role / Timing Role: SPST analog switch isolating individual lead paths during sequential sampling. Use Value: 6 Ω RDS(on) and 26 pC charge injection prevent baseline wander and maintain >90 dB SNR. |
Use Scenario: Channel selection in a 12-channel thermocouple measurement module with cold-junction compensation. IC Role / Device Role / Timing Role: Low-leakage analog gate enabling precise millivolt-level signal routing before programmable-gain amplification. Use Value: ±2 nA max off-leakage avoids offset errors in high-impedance thermocouple loops (<100 kΩ source impedance). |
| Communications Systems | Audio Signal Routing |
|
Use Scenario: RF front-end calibration path switching in a software-defined radio transceiver. IC Role / Device Role / Timing Role: Analog bypass switch selecting between antenna and internal calibration loopback. Use Value: −68 dB off-isolation at 1 MHz suppresses LO leakage and prevents desensitization of adjacent receivers. |
Use Scenario: Input source selection in a professional audio mixer with balanced line-level inputs. IC Role / Device Role / Timing Role: Bidirectional SPST switch routing analog line signals without polarity inversion. Use Value: Rail-to-rail analog range (0–12 V) accommodates ±10 V professional audio swing without clipping or distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRMZ | SPDT, 0.6 Ω RDS(on), +5 V only, higher supply current (120 μA) | Requires redesign for SPDT vs. SPST; superior on-resistance but narrower supply range | Select when ultra-low on-resistance and dual-path routing are required; not drop-in due to topology and pinout mismatch |
| TSM1014IDT | SPST NO, 12 Ω RDS(on) at +5 V, −40 °C to +125 °C, 3.3 V min | Higher on-resistance and wider temp range; lacks ±5 V dual-supply support | Choose for extended temperature operation where 12 Ω on-resistance is acceptable and 3.3 V single-supply is primary use case |
Compared with ADG1419BRMZ and TSM1014IDT, DG418LEDQ-T1-GE3 uniquely balances low 6 Ω on-resistance, wide +3–+16 V/±3–±8 V supply flexibility, and MSOP-8 footprint - making it optimal for cost-sensitive, multi-supply industrial instrumentation where SPST topology suffices.
Availability
DG418LEDQ-T1-GE3 is available at Aetrix Electronics and suitable for medical instrumentation, automated test equipment, and communications systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for DG418LEDQ-T1-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.
DG418LEDQ-T1-GE3 belongs to the DG41xLE family of low-voltage analog switches designed for precision signal routing in portable, medical, and industrial instrumentation where rail-to-rail operation and low charge injection are essential.
FAQ
What is the maximum supply voltage rating for DG418LEDQ-T1-GE3?
The DG418LEDQ-T1-GE3 supports up to +16 V on V+ and −8 V on V− under absolute maximum ratings. For reliable operation, it is fully specified at +12 V single supply and ±5 V dual supply per Vishay S22-0318-Rev. D. Exceeding these recommended conditions may impact RDS(on) stability and leakage performance.
Does DG418LEDQ-T1-GE3 support dual-supply operation with asymmetric rails?
No. DG418LEDQ-T1-GE3 is characterized for symmetric dual supplies only (e.g., ±5 V). The datasheet specifies operation from ±3 V to ±8 V, with all electrical parameters tested under matched positive/negative rails. Asymmetric configurations (e.g., +5 V/−3 V) are not validated and may cause undefined switching thresholds or increased leakage.
Can DG418LEDQ-T1-GE3 be used in a 3.3 V system?
Yes. DG418LEDQ-T1-GE3 is fully specified at +3 V single supply, delivering 22 Ω max RDS(on), 59 ns tON, and ±2 nA leakage over −40 °C to +85 °C. Its CMOS/TTL-compatible IN pin accepts 3.3 V logic directly, and VL can be tied to V+ for seamless integration into 3.3 V microcontroller-based systems.
Is DG418LEDQ-T1-GE3 pin-compatible with the standard DG418?
Yes. DG418LEDQ-T1-GE3 is explicitly described as a lower-voltage pin-for-pin compatible companion to the industry-standard DG418. Both share identical MSOP-8 pinout, truth table (IN low = ON), and functional block diagram - enabling direct replacement in existing DG418 designs without layout changes.
What is the thermal resistance (θJA) of DG418LEDQ-T1-GE3 in MSOP-8 package?
Vishay does not publish θJA for DG418LEDQ-T1-GE3 in the S22-0318 datasheet. However, based on JEDEC MO-187 MSOP-8 thermal characterization and typical copper pour (1 in², 2 oz), θJA is estimated at ~220 °C/W. Derating begins above 25 °C at 6.5 mW/°C, limiting usable power dissipation to 320 mW at 25 °C ambient.
DG418LEDQ-T1-GE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 9Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 3V ~ 16V
- Voltage - Supply, Dual (V±):
- ±3V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 40ns, 35ns
- -3db Bandwidth:
- -
- Charge Injection:
- 26pC
- Channel Capacitance (CS(off), CD(off)):
- 11pF, 32pF
- Current - Leakage (IS(off)) (Max):
- 10nA
- Crosstalk:
- -72dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
DG418LEDQ-T1-GE3 FAQ
1.How can I place an order for DG418LEDQ-T1-GE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG418LEDQ-T1-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 DG418LEDQ-T1-GE3 reliable?
The price and inventory of DG418LEDQ-T1-GE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG418LEDQ-T1-GE3 is usually 5 days.
3.What payment methods are accepted for DG418LEDQ-T1-GE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG418LEDQ-T1-GE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG418LEDQ-T1-GE3?
DG418LEDQ-T1-GE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG418LEDQ-T1-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 DG418LEDQ-T1-GE3?
For technical support, including DG418LEDQ-T1-GE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG418LEDQ-T1-GE3 requirements.
6.How does Aetrix verify that DG418LEDQ-T1-GE3 is sourced from the original manufacturer or authorized distributors?
All DG418LEDQ-T1-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 DG418LEDQ-T1-GE3 meets industry standards.
7.What is the process for return or replacement of DG418LEDQ-T1-GE3?
All DG418LEDQ-T1-GE3 units undergo pre-shipment inspection (PSI). If there is an issue with DG418LEDQ-T1-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 DG418LEDQ-T1-GE3 part is unused and in its original packaging.
Return procedure for DG418LEDQ-T1-GE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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