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Vishay Siliconix DG417LEDY-T1-GE4
- Part No.:
- DG417LEDY-T1-GE4
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG417LEDY-T1-GE4.pdf
- Description:
- IC SWITCH SPST X 1 9OHM 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:471
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Product details
Overview
DG417LEDY-T1-GE4 from Vishay Siliconix is a single-pole, normally-closed (SPST-NC) analog switch IC designed for precision signal routing in low-voltage systems. It operates from +3 V to +16 V single supply or ±3 V to ±8 V dual supply, delivers 6 Ω on-resistance at +12 V, achieves 20 ns turn-on time, and supports full analog signal swing from V− to V+. It is used in medical instrumentation front-end multiplexing where rail-to-rail signal integrity and low charge injection are critical.
For engineers reviewing the DG417LEDY-T1-GE4 datasheet, DG417LEDY-T1-GE4 pinout, DG417LEDY-T1-GE4 application, or DG417LEDY-T1-GE4 equivalent, key selection criteria include its SPST-NC configuration, 6 Ω RDS(on) at +12 V, −40 °C to +85 °C operating range, TSSOP-8 package compatibility, and break-before-make exclusion (unlike DG419LE).
Technical Context
The DG417LEDY-T1-GE4 implements a CMOS transmission gate architecture with level-shifted control logic, enabling TTL/CMOS-compatible inputs that tolerate overvoltage up to V+ and operate across wide supply ranges. Its symmetrical conduction supports bidirectional analog signal flow without polarity constraints.
It features guaranteed low leakage (±2 nA max off-state, ±2 nA max on-state), 26 pC charge injection (single-supply +12 V), and −68 dB off-isolation at 1 MHz - all specified over the full −40 °C to +85 °C temperature range and validated at +12 V, ±5 V, +5 V, and +3 V supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | SPST-NC (single-pole, normally-closed); opens when IN = high, blocks signal path until enabled |
| On-Resistance | 6 Ω max at +12 V / 0 V supply; ensures minimal voltage drop and gain error in precision sensor interfaces |
| Supply Range | +3 V to +16 V single supply or ±3 V to ±8 V dual supply; supports portable battery-powered and industrial rails |
| Switching Speed | tON = 20 ns, tOFF = 15 ns (RL = 300 Ω, CL = 35 pF); enables fast channel scanning in data acquisition systems |
| Analog Signal Range | VANALOG = V− to V+; allows full-rail signal handling without clipping in unipolar or bipolar configurations |
| Charge Injection | 26 pC (typ.) at +12 V; limits voltage glitch in sample-and-hold and switched-capacitor circuits |
| Off-Isolation | −68 dB at 1 MHz; suppresses crosstalk between adjacent channels in multi-channel medical front-ends |
Pinout & Package
Package: 8-pin narrow SOIC (SO-8, JEDEC MS-012), 4.9 mm × 3.9 mm × 1.5 mm body, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC/NO) | Normally-closed terminal | Connected to COM when IN = low; open circuit when IN = high; not internally connected in DG417LE |
| 2 (COM) | Common analog terminal | Signal path junction between NC and internal switch; bidirectional analog I/O node |
| 3 (V−) | Negative supply rail | Bias reference for analog channel; sets lower bound of signal range; must be ≤ V+ − 0.3 V |
| 4 (GND) | Digital ground reference | Reference for logic input thresholds and internal level shifters; separate from analog return paths |
| 5 (IN) | Digital control input | TTL/CMOS-compatible; accepts 0.8 V / 2.4 V thresholds; overvoltage tolerant up to V+ |
| 6 (V+) | Positive supply rail | Bias reference for analog channel; sets upper bound of signal range; absolute max 18 V |
| 7 (VL) | Logic supply voltage | Defines logic threshold levels; tied to V+ in standard operation; supports independent logic bias |
| 8 (NC) | No-connect terminal | Not bonded; no internal connection; must be left floating or grounded per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance | 6 Ω max at +12 V ensures <0.1% gain error in 12-bit precision signal chains with 1 kΩ source impedance |
| Wide supply flexibility | +3 V to +16 V single or ±3 V to ±8 V dual operation enables reuse across battery, USB, and industrial power domains |
| Break-before-make exclusion | SPST-NC topology eliminates unintended short-through during switching - critical for fault-tolerant medical sensors |
| Overvoltage-tolerant control | IN pin accepts voltages up to V+, allowing direct interface with higher-voltage microcontrollers without level shifters |
| Low temperature drift | RDS(on) variation <±15% from −40 °C to +85 °C maintains consistent channel matching in thermal environments |
Applications
| Medical Instrumentation | Precision Data Acquisition |
|---|---|
|
Use Scenario: Multiplexing ECG electrode signals into a single ADC channel with minimal offset drift and noise coupling. IC Role / Device Role / Timing Role: SPST-NC analog switch isolating unused leads during active measurement cycles to reduce input capacitance and leakage-induced baseline wander. Use Value: 6 Ω RDS(on) and ±2 nA leakage preserve microvolt-level signal fidelity; 26 pC charge injection prevents hold capacitor corruption. |
Use Scenario: Channel selection in 16-bit automated test equipment (ATE) for sensor calibration and stimulus routing. IC Role / Device Role / Timing Role: Low-distortion analog path selector enabling sequential sampling of thermocouple, RTD, and strain gauge inputs. Use Value: −68 dB off-isolation and −72 dB crosstalk prevent inter-channel interference; 20 ns switching supports >10 kSPS scan rates. |
| Audio Signal Routing | Portable Diagnostic Equipment |
|
Use Scenario: Input source selection in battery-powered ultrasound front-end with dynamic range >100 dB. IC Role / Device Role / Timing Role: Bidirectional analog switch routing transducer receive paths while maintaining DC-coupled signal integrity. Use Value: Full V− to V+ analog range preserves audio bandpass response; 33 pF drain-on capacitance minimizes high-frequency roll-off. |
Use Scenario: Power-gated sensor interface in handheld glucose meters and pulse oximeters to extend battery life. IC Role / Device Role / Timing Role: Normally-closed switch disconnecting analog front-end during sleep mode to eliminate standby current leakage. Use Value: 1 μA max supply current at +3 V and ±2 nA off-leakage enable >1-year shelf life; SOIC-8 footprint supports compact PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617EUA+ | SPST-NC, 6 Ω RDS(on) at +12 V, but only rated for +12 V single supply (not +16 V or ±8 V) | Limited to fixed-rail systems; unsuitable for dual-supply medical amplifiers requiring ±5 V operation | Select DG417LEDY-T1-GE4 when dual-supply support, wider voltage range, or guaranteed −40 °C performance is required. |
| ADG1419BRMZ | SPDT (not SPST-NC), 8.5 Ω RDS(on), higher 35 pC charge injection, and no NC/NO pin separation | Requires redesign for NC-only function; introduces additional parasitic capacitance in high-speed paths | Choose DG417LEDY-T1-GE4 for dedicated NC-path isolation without signal path reconfiguration. |
Compared with MAX4617EUA+ and ADG1419BRMZ, DG417LEDY-T1-GE4 uniquely combines SPST-NC topology, 6 Ω on-resistance across +3 V to +16 V, and full −40 °C to +85 °C qualification - making it optimal for space-constrained, multi-rail medical and portable instrumentation where fail-safe default closure is mandatory.
Availability
DG417LEDY-T1-GE4 is available at Aetrix Electronics and suitable for medical instrumentation, precision data acquisition, and portable diagnostic equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for DG417LEDY-T1-GE4 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 components and analog ICs, with leadership in power MOSFETs, diodes, optoelectronics, and precision analog switches.
The DG417LEDY-T1-GE4 belongs to Vishay's DG417LE family of low-voltage, low-RDS(on) analog switches engineered for high-fidelity signal routing in medical, test, and portable instrumentation where reliability and rail-to-rail performance are essential.
FAQ
What is the maximum supply voltage rating for DG417LEDY-T1-GE4?
The DG417LEDY-T1-GE4 supports absolute maximum ratings of −0.3 V to +18 V on V+, VL, and IN pins referenced to V−, and −0.3 V to +18 V on V+ referenced to GND. Its operational single-supply range is +3 V to +16 V, and dual-supply range is ±3 V to ±8 V - verified per Vishay S22-0318-Rev. D specifications.
Does DG417LEDY-T1-GE4 support break-before-make switching?
No, DG417LEDY-T1-GE4 does not implement break-before-make switching. It is an SPST-NC device with simple on/off control; break-before-make is exclusive to the DG419LE SPDT variant. This makes DG417LEDY-T1-GE4 suitable for applications requiring fail-safe closed-path default behavior without timing overlap concerns.
What is the typical charge injection value for DG417LEDY-T1-GE4 at +12 V supply?
The typical charge injection for DG417LEDY-T1-GE4 is 26 pC under single-supply +12 V conditions (V+ = 12 V, V− = 0 V), measured with VGEN = 0 V, RGEN = 0 Ω, and CL = 1 nF. This value is guaranteed by design and impacts hold-step accuracy in sample-and-hold circuits using DG417LEDY-T1-GE4.
Can DG417LEDY-T1-GE4 operate with VL decoupled from V+?
Yes, DG417LEDY-T1-GE4 supports independent VL biasing. The VL pin sets logic threshold levels and may be driven separately from V+ - for example, tying VL to 3.3 V while operating V+ at +12 V - enabling mixed-voltage system interfacing without external level translation.
What is the guaranteed maximum on-resistance for DG417LEDY-T1-GE4 at +3 V supply?
At +3 V single supply (V+ = 3 V, V− = 0 V), the guaranteed maximum on-resistance for DG417LEDY-T1-GE4 is 38 Ω over the full −40 °C to +85 °C temperature range, measured with INO/INC = 5 mA and VCOM = 0.5 V or 2.2 V - per Vishay S22-0318-Rev. D, page 6, "SPECIFICATIONS (Single supply 3 V)" table.
DG417LEDY-T1-GE4 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-SO
DG417LEDY-T1-GE4 FAQ
1.How can I place an order for DG417LEDY-T1-GE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG417LEDY-T1-GE4 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 DG417LEDY-T1-GE4 reliable?
The price and inventory of DG417LEDY-T1-GE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG417LEDY-T1-GE4 is usually 5 days.
3.What payment methods are accepted for DG417LEDY-T1-GE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG417LEDY-T1-GE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG417LEDY-T1-GE4?
DG417LEDY-T1-GE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG417LEDY-T1-GE4 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 DG417LEDY-T1-GE4?
For technical support, including DG417LEDY-T1-GE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG417LEDY-T1-GE4 requirements.
6.How does Aetrix verify that DG417LEDY-T1-GE4 is sourced from the original manufacturer or authorized distributors?
All DG417LEDY-T1-GE4 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 DG417LEDY-T1-GE4 meets industry standards.
7.What is the process for return or replacement of DG417LEDY-T1-GE4?
All DG417LEDY-T1-GE4 units undergo pre-shipment inspection (PSI). If there is an issue with DG417LEDY-T1-GE4, 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 DG417LEDY-T1-GE4 part is unused and in its original packaging.
Return procedure for DG417LEDY-T1-GE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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