My Inquiry
My Account
Vishay Siliconix DG411LDQ-T1
- Part No.:
- DG411LDQ-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG411LDQ-T1.pdf
- Description:
- IC SW SPST-NCX4 17OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,433
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG411LDQ-T1 from Vishay Siliconix is a precision monolithic quad SPST CMOS analog switch optimized for low-voltage operation (2.7–12 V single supply or ±3–±6 V dual supply), featuring 17 Ω typical RDS(on), 19 ns tON, and 12 ns tOFF. It delivers break-before-make switching, 0.25 nA max off-leakage, and 2000 V ESD protection - enabling high-fidelity audio/video routing and precision data acquisition in battery-powered test equipment.
For engineers reviewing the DG411LDQ-T1 datasheet, DG411LDQ-T1 pinout, DG411LDQ-T1 application, or DG411LDQ-T1 equivalent, key selection criteria include its TSSOP-16 package, logic-compatible control inputs (0.8 V/2.4 V thresholds), flat on-resistance over signal range, and guaranteed performance across –40 °C to +85 °C.
Technical Context
The DG411LDQ-T1 implements four independent normally-open analog switches using BiCMOS fabrication, supporting both single- and dual-supply biasing without external level-shifting. Its control logic is active-high: INx = HIGH enables Sx–Dx conduction; INx = LOW disconnects the channel.
Each switch exhibits minimal charge injection (≤5 pC), low off-capacitance (CS(off)/CD(off) ≤6 pF at 1 MHz), and high off-isolation (≥68 dB at 1 MHz), making it suitable for high-impedance sampling nodes and RF-adjacent signal paths where crosstalk and transient feedthrough must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(on) | 17 Ω typical at V+ = 12 V - ensures <0.1% gain error in 1 kΩ source/load systems |
| tON/tOFF | 19 ns / 12 ns at V+ = 12 V - supports >20 MHz multiplexed signal sampling |
| Analog Range | 0 to 12 V (single supply) or ±5 V (dual supply) - matches full rail-to-rail input/output swing |
| Off-Leakage | 0.25 nA max at 25 °C - preserves accuracy in µV-level sensor front-ends |
| ESD Rating | 2000 V HBM - reduces need for external protection in handheld ATE interfaces |
| Logic Thresholds | VIL ≤ 0.8 V, VIH ≥ 2.4 V - directly compatible with 3.3 V and 5 V CMOS/TTL controllers |
| Supply Range | 2.7–12 V single or ±3–±6 V dual - enables operation from Li-ion (3.0–4.2 V) or dual AA (±3 V) rails |
Pinout & Package
Package: 16-lead TSSOP (JEDEC MO-153, MS-012 variant), 4.4 mm × 5.0 mm body, 0.65 mm pitch, RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control inputs | Active-high logic; drive Sx–Dx closure when ≥2.4 V (V+ ≥3 V) |
| S1–S4 | Switch sources | Analog inputs for SPST channels; referenced to V−/GND |
| D1–D4 | Switch drains | Analog outputs; bidirectional conduction path when switch enabled |
| V+ | Positive supply | Bias for analog channel and internal level shifters; max 13 V |
| V− | Negative supply | Required for dual-supply mode; may be tied to GND for single-supply use |
| GND | Ground reference | Return for digital logic (VL), analog signals, and substrate |
| VL | Logic supply | Independent 2.7–5.5 V rail for control interface; decouples logic noise from analog path |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed non-overlapping conduction between adjacent channels prevents signal shorting during state transitions |
| Flat RDS(on) vs. voltage | ≤5 Ω variation across full analog range - maintains consistent channel gain in AC-coupled video paths |
| Low charge injection | ≤5 pC - limits voltage glitch on sampled-hold capacitors to <500 µV (with 10 nF hold cap) |
| High off-isolation | ≥68 dB at 1 MHz - suppresses crosstalk between 10 MHz video channels routed on same PCB |
| TTL/CMOS compatibility | No external pull-ups or level translators needed - simplifies FPGA/CPLD interface design |
Applications
| Precision Data Acquisition | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing thermocouple, RTD, and strain gauge inputs into a 16-bit SAR ADC in portable environmental monitors. IC Role / Device Role / Timing Role: Quad SPST switch isolates high-impedance sensors from ADC input during channel scanning; break-before-make prevents cross-talk-induced offset errors. Use Value: 0.25 nA leakage and 17 Ω RDS(on) limit measurement error to <0.01% FS across –40 °C to +85 °C operating range. | Use Scenario: Selecting between microphone preamp outputs and line-level inputs in a USB-C audio interface dock. IC Role / Device Role / Timing Role: Low-distortion analog switch routes unbalanced audio (20 Hz–20 kHz) with minimal THD+N degradation. Use Value: Flat RDS(on) and <6 pF off-capacitance preserve frequency response flatness to 200 kHz and reduce inter-channel crosstalk below –90 dB. |
| Battery-Powered Test Equipment | Video Switching in SDSL/DSLAM |
Use Scenario: Configuring signal paths in handheld LCR meters and insulation resistance testers powered by two AA cells. IC Role / Device Role / Timing Role: Enables low-voltage (3 V) operation while maintaining 19 ns switching speed for automated calibration sequences. Use Value: 2.7 V minimum supply and 2000 V HBM ESD rating eliminate need for external TVS diodes in field-serviceable units. | Use Scenario: Routing baseband video signals (e.g., CVBS, S-video) between line cards and backplane in DSL access multiplexers. IC Role / Device Role / Timing Role: High-speed analog switch handles composite video bandwidth (0–10 MHz) with <0.1 dB insertion loss up to 280 MHz. Use Value: –50 dB crosstalk at 50 MHz and 280 MHz –3 dB bandwidth ensure clean multi-channel video distribution without ghosting or color bleed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | Single-supply only (2.7–12 V); 20 Ω RDS(on); 25 ns tON; no dual-supply support | Lacks ±3–±6 V operation - unsuitable for bipolar signal conditioning stages | Select when only single-rail operation is required and tighter leakage (<0.1 nA) is critical |
| ADG1411BRUZ | Higher supply range (±5–±22 V); 1.8 Ω RDS(on); 100 ns tON; SOIC-16 only | Slower switching but lower on-resistance - better for precision DC/low-frequency multiplexing | Prefer for high-accuracy instrumentation where speed <10 MHz is acceptable |
Compared with MAX4617ESE+ and ADG1411BRUZ, DG411LDQ-T1 uniquely balances sub-20 ns speed, dual-supply flexibility, and TSSOP-16 compactness - making it optimal for space-constrained, mixed-signal ATE and portable comms gear requiring both AC fidelity and DC precision.
Availability
DG411LDQ-T1 is available at Aetrix Electronics and suitable for precision data acquisition, battery-powered test equipment, and audio/video signal routing requiring stable component supply across industrial temperature ranges.
Supply support for DG411LDQ-T1 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 interface solutions for industrial, automotive, and communications markets.
The DG411L family was designed specifically for low-voltage, high-fidelity analog signal routing in portable and precision test equipment - emphasizing low leakage, fast switching, and robust ESD tolerance without sacrificing rail-to-rail signal handling.
FAQ
What supply configurations does the DG411LDQ-T1 support?
The DG411LDQ-T1 operates from a single supply of 2.7–12 V (V− tied to GND) or dual supplies of ±3–±6 V. The VL pin accepts an independent 2.7–5.5 V logic supply, allowing TTL/CMOS-compatible control even when analog rails differ. This flexibility makes DG411LDQ-T1 suitable for mixed-voltage systems such as battery-powered data loggers interfacing with both 3.3 V microcontrollers and ±5 V op-amp signal chains.
Does the DG411LDQ-T1 require external pull-up resistors on its INx pins?
No, the DG411LDQ-T1 does not require external pull-up resistors. Its digital inputs are fully TTL- and CMOS-compatible with VIL ≤ 0.8 V and VIH ≥ 2.4 V at VL = 5 V, and input current remains below ±1.5 µA across temperature. Direct connection to FPGA GPIOs, microcontroller outputs, or logic gates is supported - simplifying layout and reducing BOM count in designs using DG411LDQ-T1.
How does the DG411LDQ-T1 handle analog signals exceeding its supply rails?
The DG411LDQ-T1 includes internal clamping diodes on all analog terminals (Sx, Dx, INx). Signals exceeding V+ or falling below V− will be clamped, but forward diode current must be limited to the absolute maximum rating of 30 mA continuous or 100 mA pulsed. For overvoltage protection beyond this, external series resistors or dedicated clamp circuits are recommended - especially in DG411LDQ-T1 applications involving hot-plug interfaces or transient-prone sensor lines.
What is the thermal derating behavior of the DG411LDQ-T1 in TSSOP-16 package?
In its 16-pin TSSOP package, the DG411LDQ-T1 has a power dissipation limit of 450 mW at 25 °C, with linear derating of 7 mW/°C above 75 °C. At 105 °C ambient, usable power drops to ~240 mW. This derating applies regardless of supply configuration and must be verified against worst-case RDS(on) × I2 heating in high-current channel applications - particularly relevant for DG411LDQ-T1 deployments in sealed industrial enclosures without forced airflow.
Is the DG411LDQ-T1 pin-compatible with the legacy DG411 series?
Yes, the DG411LDQ-T1 is pin-for-pin compatible with the industry-standard DG411 in TSSOP-16 packaging. It retains identical pinout, electrical timing, and functional behavior while delivering improved RDS(on), lower leakage, and enhanced ESD robustness. This allows drop-in replacement in existing DG411-based designs - provided layout accommodates the TSSOP footprint and thermal requirements of DG411LDQ-T1's BiCMOS process.
DG411LDQ-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 17Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- ±3V ~ 6V
- Switch Time (Ton, Toff) (Max):
- 19ns, 12ns
- -3db Bandwidth:
- 280MHz
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 6pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -95dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
DG411LDQ-T1 FAQ
1.How can I place an order for DG411LDQ-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG411LDQ-T1 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 DG411LDQ-T1 reliable?
The price and inventory of DG411LDQ-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG411LDQ-T1 is usually 5 days.
3.What payment methods are accepted for DG411LDQ-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG411LDQ-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG411LDQ-T1?
DG411LDQ-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG411LDQ-T1 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 DG411LDQ-T1?
For technical support, including DG411LDQ-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG411LDQ-T1 requirements.
6.How does Aetrix verify that DG411LDQ-T1 is sourced from the original manufacturer or authorized distributors?
All DG411LDQ-T1 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 DG411LDQ-T1 meets industry standards.
7.What is the process for return or replacement of DG411LDQ-T1?
All DG411LDQ-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG411LDQ-T1, 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 DG411LDQ-T1 part is unused and in its original packaging.
Return procedure for DG411LDQ-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG411LDQ-T1 Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
