My Inquiry
My Account
Vishay Siliconix DG409DY-T1
- Part No.:
- DG409DY-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG409DY-T1.pdf
- Description:
- IC SWITCH SP4T X 2 100OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,036
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG409DY-T1 from Vishay Siliconix is a dual 4-channel differential analog multiplexer IC designed to route one of four differential input pairs (S1a/S1b through S4a/S4b) to a common dual output (Da/Db) under 2-bit binary address control (A0, A1), with break-before-make switching, ±5 V to ±20 V dual-supply or +5 V to +36 V single-supply operation, and 100 Ω typical on-resistance - used in precision data acquisition and audio routing systems.
For engineers reviewing the DG409DY-T1 datasheet, DG409DY-T1 pinout, DG409DY-T1 application, or DG409DY-T1 equivalent, this page delivers verified specifications including RDS(on) = 100 Ω, tTRANS = 160 ns, Q = 20 pC, ISUPPLY = 10 μA, and -40 °C to +85 °C operating range - critical for low-glitch, battery-powered, and high-isolation signal path design.
Technical Context
The DG409DY-T1 implements a CMOS-based dual 4:1 differential switch architecture with independent channel enable (EN) and TTL-compatible address inputs (A0, A1), supporting both bipolar and single-supply configurations. Its epitaxial silicon-gate process enables 44 V absolute maximum supply rating and latchup immunity.
Break-before-make timing (tOPEN = 10 ns min) prevents momentary crosstalk during channel transitions; charge injection (20 pC) and off-isolation (-75 dB at 1 MHz) are optimized for high-fidelity signal integrity in multiplexed ADC front-ends and audio paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(on) | 100 Ω max - ensures minimal signal attenuation and gain error in precision analog paths |
| tTRANS | 160 ns typical - enables ≤6.25 MHz channel switching without data loss in fast-sampling systems |
| Charge Injection | 20 pC - limits voltage glitch on sampled-hold capacitors in ADC interfaces |
| ISUPPLY | 10 μA max - supports ultra-low-power operation in battery-backed instrumentation |
| Analog Range | ±15 V (dual) or 0–12 V (single) - accommodates industrial sensor outputs and audio line-level signals |
| OIRR | -75 dB at 1 MHz - provides strong channel-to-channel isolation in multi-signal routing |
| Supply Range | ±5 V to ±20 V dual or +5 V to +36 V single - simplifies system power architecture |
Pinout & Package
Package: 16-pin SOIC (Small Outline Integrated Circuit), JEDEC MS-012 compliant, body dimensions 9.80–10.00 mm × 3.80–4.00 mm, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 13, 14, 15, 16 | S1a–S4a / S1b–S4b | Differential analog input terminals - each pair (e.g., S1a/S1b) forms one selectable differential channel |
| 5, 6 | Da, Db | Differential analog output - carries selected channel's balanced signal to downstream circuitry |
| 7, 8 | A0, A1 | 2-bit binary address inputs - select active channel (00 → S1, 01 → S2, 10 → S3, 11 → S4) |
| 9 | EN | Enable input - logic low disables all switches; TTL-compatible over full temperature range |
| 10 | GND | Ground reference - common return for digital control and substrate bias |
| 11, 12 | V−, V+ | Negative and positive supply rails - support symmetric or asymmetric operation up to ±20 V |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guarantees ≥10 ns channel separation - eliminates transient shorting in stacked or cascaded mux topologies |
| TTL-compatible logic interface | Validated for 0.8 V / 2.4 V thresholds across -40 °C to +85 °C - eliminates level-shifting in mixed-voltage systems |
| Single-supply capability | Operates from +5 V to +36 V - enables direct integration into 12 V or 24 V industrial control rails |
| 44 V absolute max rating | Withstands transient overvoltage events up to 44 V - enhances robustness in noisy environments |
| Epitaxial latchup immunity | Prevents destructive latchup under overvoltage or ESD stress - improves field reliability |
Applications
| Medical Instrumentation | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing multiple patient sensor inputs (ECG, EEG, SpO₂) into a shared ADC channel in portable monitors. IC Role / Device Role / Timing Role: Dual differential analog multiplexer providing channel selection with <100 Ω on-resistance and <20 pC charge injection to preserve signal fidelity. Use Value: Enables compact, low-power, multi-parameter acquisition without external buffering or calibration drift. | Use Scenario: Switching between four stereo line-level sources (microphone preamp, DAC output, Bluetooth receiver, auxiliary input) in professional audio mixers. IC Role / Device Role / Timing Role: Differential 4:1 mux routing balanced audio signals while maintaining common-mode rejection and minimizing crosstalk. Use Value: Delivers >75 dB off-isolation at 20 kHz and sub-200 ns transition time for glitch-free source switching. |
| Data Acquisition Systems | Battery-Powered Test Equipment |
Use Scenario: Scanning thermocouple, RTD, and strain gauge bridges into a precision sigma-delta ADC in modular DAQ modules. IC Role / Device Role / Timing Role: High-voltage-tolerant analog switch handling ±10 V sensor outputs with matched RDS(on) (<15 Ω spread) for ratio-metric accuracy. Use Value: Eliminates per-channel gain calibration and supports 16-bit effective resolution across all channels. | Use Scenario: Power-conscious handheld multimeters and insulation testers requiring long battery life and wide dynamic range. IC Role / Device Role / Timing Role: Low-quiescent-current (10 μA) multiplexer enabling sleep-mode power gating and wake-on-event sensing. Use Value: Extends operational runtime beyond 100 hours on two AA cells while maintaining 100 kSPS sampling capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual differential analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4679ESE+ | Lower RDS(on) (45 Ω typ), but only ±5 V max supply; no single-supply mode | Best suited for low-voltage, high-speed PCB test fixtures where rail headroom is constrained | Select when prioritizing on-resistance over supply flexibility and temperature range |
| ADG409BRUZ | Identical 16-pin TSSOP package; RDS(on) = 125 Ω max; higher leakage (±20 nA vs. ±5 nA) | Preferred for space-constrained designs where footprint compatibility matters more than leakage-critical sensor nodes | Choose when board layout reuse is essential and ±20 nA off-leakage is acceptable |
Compared with MAX4679ESE+ and ADG409BRUZ, the DG409DY-T1 uniquely combines 44 V absolute rating, true single-supply operation (+5 V to +36 V), and -40 °C to +85 °C performance - making it optimal for ruggedized industrial and avionics signal routing where supply variation and environmental stress are dominant constraints.
Availability
DG409DY-T1 is available at Aetrix Electronics and suitable for data acquisition systems, audio signal routing, battery-powered instrumentation, medical devices, and industrial control applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for DG409DY-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 switching, power management, and sensing solutions for industrial, automotive, and computing markets.
The DG409DY-T1 belongs to Vishay's high-performance analog multiplexer product line, engineered for precision signal routing in harsh environments - emphasizing low distortion, wide supply tolerance, and latchup immunity in mission-critical measurement systems.
FAQ
What is the maximum supply voltage rating for the DG409DY-T1?
The DG409DY-T1 has an absolute maximum supply voltage rating of 44 V between V+ and V− pins. This allows safe operation with dual supplies up to ±20 V or single supplies up to +36 V, provided the voltage difference does not exceed 44 V. Exceeding this rating risks permanent damage, per Vishay's datasheet Document Number 70062.
Does the DG409DY-T1 support single-supply operation?
Yes, the DG409DY-T1 supports true single-supply operation from +5 V to +36 V, with V− tied to GND. In this configuration, the analog signal range extends from 0 V to V+ − 1 V (e.g., 0–11 V at +12 V supply), and all digital inputs remain TTL-compatible. This is confirmed in the "Specifications (Single Supply)" table on page 4 of the DG409 datasheet.
What is the break-before-make interval for the DG409DY-T1?
The DG409DY-T1 guarantees a minimum break-before-make interval (tOPEN) of 10 ns, measured at room temperature. This timing prevents momentary shorting between adjacent differential channels during address transitions, ensuring signal integrity in high-accuracy multiplexed systems such as medical data acquisition and ATE.
How does the DG409DY-T1 handle charge injection in sampling applications?
The DG409DY-T1 specifies 20 pC typical charge injection (Q), measured with CL = 10 nF and VS = 0 V. This low value minimizes voltage glitches on sampling capacitors in ADC front-ends - critical for maintaining DC accuracy and reducing settling time in precision data acquisition systems using the DG409DY-T1.
Is the DG409DY-T1 RoHS-compliant?
Yes, the DG409DY-T1 suffix "-T1" indicates tape-and-reel packaging; RoHS compliance is confirmed by the "-E3" suffix variant (DG409DY-T1-E3). Per Vishay's ordering table and Material Categorization Note in the datasheet, DG409DY-T1 is available in both standard SnPb and RoHS-compliant lead-free versions - verify part number suffix with distributor stock or Vishay's official documentation.
DG409DY-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 15Ohm (Max)
- Voltage - Supply, Single (V+):
- 5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 20pC
- Channel Capacitance (CS(off), CD(off)):
- 14pF, 25pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG409DY-T1 FAQ
1.How can I place an order for DG409DY-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG409DY-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 DG409DY-T1 reliable?
The price and inventory of DG409DY-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG409DY-T1 is usually 5 days.
3.What payment methods are accepted for DG409DY-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG409DY-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG409DY-T1?
DG409DY-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG409DY-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 DG409DY-T1?
For technical support, including DG409DY-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG409DY-T1 requirements.
6.How does Aetrix verify that DG409DY-T1 is sourced from the original manufacturer or authorized distributors?
All DG409DY-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 DG409DY-T1 meets industry standards.
7.What is the process for return or replacement of DG409DY-T1?
All DG409DY-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG409DY-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 DG409DY-T1 part is unused and in its original packaging.
Return procedure for DG409DY-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG409DY-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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
