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Vishay Siliconix DG408LDY-T1-E3
- Part No.:
- DG408LDY-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG408LDY-T1-E3.pdf
- Description:
- IC MUX 8:1 29OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,854
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Product details
Overview
DG408LDY-T1-E3 from Vishay Siliconix is a precision 8-channel single-ended analog multiplexer IC designed to route one of eight analog inputs to a common output under 3-bit binary address control (A0–A2). It operates from 3 V to 12 V single supply or ±3 V to ±6 V dual supply, delivers 17 Ω typical on-resistance, 38 ns enable turn-on time, and guarantees break-before-make switching-enabling high-accuracy signal routing in portable data acquisition systems.
For engineers reviewing the DG408LDY-T1-E3 datasheet, DG408LDY-T1-E3 pinout, DG408LDY-T1-E3 application, or DG408LDY-T1-E3 equivalent, key selection criteria include its low 0.2 nA max off-leakage, 1 pC charge injection, 82 dB off-isolation at 1 MHz, TTL/CMOS/LV logic compatibility, and SOIC-16 package suitability for space-constrained battery-powered instrumentation.
Technical Context
The DG408LDY-T1-E3 implements BiCMOS process technology to achieve lower RDS(on), faster switching, and reduced power vs. legacy DG408. Its decoder/driver stage accepts standard 3 V logic levels (VINH ≥ 2.4 V, VINL ≤ 0.8 V) and drives eight independent analog switch channels with guaranteed break-before-make timing to prevent interchannel crosstalk during address transitions.
It supports rail-to-rail analog signal ranges (0–12 V single supply, –5 V to +5 V dual supply), features matched on-resistance (ΔRDS(on) ≤ 3 Ω), and maintains low capacitance (CS(off) = 7 pF, CD(off) = 20 pF) for minimal signal distortion in high-frequency sampling paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Channels | 8 single-ended channels with 3-bit address decoding (A0–A2) |
| Supply Range | 3 V to 12 V single supply or ±3 V to ±6 V dual supply - enables direct integration with 3.3 V/5 V microcontrollers and mixed-signal systems |
| RDS(on) | 17 Ω typ. at V+ = 12 V - ensures minimal voltage drop and signal attenuation in precision sensor interfaces |
| tON(EN) / tOFF(EN) | 38 ns / 18 ns typ. - supports >10 MSPS multiplexed sampling in data acquisition front-ends |
| Charge Injection | 1 pC typ. - reduces settling error in sample-and-hold circuits and ADC driver stages |
| Off-Isolation | 82 dB at 1 MHz - suppresses crosstalk between inactive channels in multi-sensor monitoring |
| Leakage Current | 0.2 nA max. at 25 °C - preserves accuracy in high-impedance pH, thermocouple, or photodiode signal chains |
Pinout & Package
Package: 16-pin narrow-body SOIC (JEDEC MS-012), 10.0 mm × 4.0 mm × 1.75 mm profile, RoHS-compliant matte tin lead finish (E3 suffix), rated for –40 °C to +85 °C operation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S1) | Analog Input Channel 1 | First of eight bidirectional analog input/output terminals; routed to D when A2:A0 = 000 |
| 2 (S2) | Analog Input Channel 2 | Second channel; selected when A2:A0 = 001 - identical electrical characteristics to S1 |
| 3 (S3) | Analog Input Channel 3 | Third channel; supports rail-to-rail analog signals up to V+ or down to V− |
| 4 (S4) | Analog Input Channel 4 | Fourth channel; worst-case off-isolation occurs here due to proximity to drain pin |
| 5 (S5) | Analog Input Channel 5 | Fifth channel; shares same RDS(on) matching (≤3 Ω Δ) and flatness (≤7 Ω) as all channels |
| 6 (S6) | Analog Input Channel 6 | Sixth channel; compatible with 3 V logic control without level shifters |
| 7 (S7) | Analog Input Channel 7 | Seventh channel; low 20 pF CD(off) minimizes capacitive loading on source |
| 8 (S8) | Analog Input Channel 8 | Eighth channel; fully specified for leakage (≤0.2 nA) and charge injection (≤5 pC) |
| 9 (D) | Common Analog Output | Single bidirectional output node shared by all eight channels; connects to ADC input or amplifier stage |
| 10 (GND) | Ground Reference | Analog and digital ground return; must be low-impedance connection to minimize noise coupling |
| 11 (V−) | Negative Supply Rail | Required for dual-supply operation (±3 V to ±6 V); tied to GND for single-supply use |
| 12 (V+) | Positive Supply Rail | Primary power input (3–12 V); powers internal bias, logic, and switch circuitry |
| 13 (EN) | Enable Control Input | Active-high digital enable; disables all switches when low (high-impedance state) |
| 14 (A0) | LSB Address Input | Least-significant bit of 3-bit channel select bus; TTL/CMOS-compatible thresholds |
| 15 (A1) | Mid-Significance Address Input | Second bit of address bus; 1.5 μA max input current avoids loading MCU GPIOs |
| 16 (A2) | MSB Address Input | Most-significant bit; completes full 0–7 channel selection with A1 and A0 |
Key Features
| Feature | Design Value |
|---|---|
| Precision analog switching | 17 Ω typical RDS(on) with ≤3 Ω matching across all 8 channels - enables consistent gain scaling in multi-channel sensor arrays |
| Break-before-make guarantee | 11 ns minimum tOPEN at 25 °C - eliminates momentary shorting between adjacent inputs during address changes |
| Ultra-low charge injection | 1 pC typical - limits voltage glitch on hold capacitors to <1 mV in 12-bit+ sample-and-hold designs |
| High off-isolation | 82 dB at 1 MHz - isolates active channel from 70+ dB of noise/interference from other inputs |
| Low-power operation | 0.2 μA typical I+ supply current - extends battery life in portable test equipment and IoT edge nodes |
Applications
| Data Acquisition Systems | Battery-Operated Equipment |
|---|---|
Use Scenario: Multiplexing outputs from 8 temperature sensors into a single 16-bit SAR ADC in an industrial environmental monitor. IC Role / Device Role / Timing Role: Precision analog switch providing channel selection with <1 LSB gain error and sub-μs settling. Use Value: Enables cost-effective 8-channel sensing using one high-resolution ADC instead of eight separate converters. | Use Scenario: Routing audio line-level signals from microphone, Bluetooth codec, and auxiliary input to a single audio DAC in a handheld recorder. IC Role / Device Role / Timing Role: Low-distortion analog multiplexer with rail-to-rail 3 V operation and 1 pC charge injection. Use Value: Preserves dynamic range and SNR while minimizing battery drain via 0.2 μA quiescent current. |
| Portable Test Equipment | Sample and Hold Circuits |
Use Scenario: Selecting between voltage, current, and resistance measurement front-ends in a handheld multimeter. IC Role / Device Role / Timing Role: High-isolation (82 dB), low-leakage (0.2 nA) switch enabling accurate DC measurements across ranges. Use Value: Eliminates cross-range interference and drift caused by off-channel leakage in precision ohmmeters. | Use Scenario: Capturing fast transient waveforms in an oscilloscope front-end where hold capacitor charging must be glitch-free. IC Role / Device Role / Timing Role: Ultra-low charge injection (1 pC) analog switch driving a 100 pF hold capacitor. Use Value: Reduces aperture uncertainty and improves effective resolution beyond 14 bits in high-speed sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4051ACSE+ | 8-channel, 3 V–15 V supply, 100 Ω RDS(on), no break-before-make guarantee | Higher on-resistance increases gain error; lacks guaranteed BBM timing for critical sequencing | Select when cost sensitivity outweighs precision timing and low-RDS(on) requirements |
| ADG1408BRUZ | 8-channel, ±15 V/12 V supply, 4.7 Ω RDS(on), 125 ns tON, higher 12 mA supply current | Superior on-resistance but slower switching and higher power - unsuitable for portable battery life targets | Select when ultra-low RDS(on) dominates over speed and quiescent current in mains-powered lab gear |
Compared with MAX4051ACSE+ and ADG1408BRUZ, the DG408LDY-T1-E3 uniquely balances low 17 Ω RDS(on), 38 ns switching, 1 pC charge injection, and 0.2 μA supply current - making it optimal for portable, precision, and low-power multiplexed signal chains where all three parameters matter simultaneously.
Availability
DG408LDY-T1-E3 is available at Aetrix Electronics and suitable for data acquisition systems, battery-operated equipment, and portable test equipment requiring stable component supply and long-term manufacturing continuity.
Supply support for DG408LDY-T1-E3 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 switches, MOSFETs, diodes, and precision resistors.
The DG408L family was engineered specifically for high-accuracy, low-power analog signal routing in portable and industrial instrumentation - improving on legacy DG408 performance with BiCMOS process enhancements.
FAQ
What is the maximum analog signal voltage range supported by DG408LDY-T1-E3?
The DG408LDY-T1-E3 supports rail-to-rail analog signals: 0 V to V+ in single-supply mode (e.g., 0–12 V at V+ = 12 V), or V− to V+ in dual-supply mode (e.g., –5 V to +5 V at ±5 V). Exceeding these ranges risks clamping by internal protection diodes and must be avoided per Absolute Maximum Ratings.
Does DG408LDY-T1-E3 require external pull-up resistors on address or enable pins?
No, DG408LDY-T1-E3 does not require external pull-ups. Its digital inputs (A0, A1, A2, EN) have CMOS-compatible thresholds (VINH ≥ 2.4 V, VINL ≤ 0.8 V at V+ = 12 V) and draw only ±1.5 μA max input current - allowing direct connection to MCU GPIOs without additional biasing components.
Can DG408LDY-T1-E3 operate reliably at 3 V supply voltage?
Yes, DG408LDY-T1-E3 is fully specified down to 3 V single supply: RDS(on) = 60 Ω typ., tON(EN) = 70 ns typ., and logic thresholds adjust to VINH ≥ 2.0 V / VINL ≤ 0.4 V. All parameters remain guaranteed across –40 °C to +85 °C at 3 V operation.
What is the thermal derating behavior of DG408LDY-T1-E3 in SOIC package?
In its 16-pin narrow SOIC package, DG408LDY-T1-E3 has a power dissipation limit of 600 mW at 75 °C ambient. Above 75 °C, it must be derated at 7.6 mW/°C - meaning maximum allowable power drops to 452 mW at 95 °C ambient, per datasheet Note c.
How does DG408LDY-T1-E3 ensure channel isolation during switching transitions?
DG408LDY-T1-E3 guarantees break-before-make (BBM) switching with minimum tOPEN = 11 ns at 25 °C. This ensures all previously selected channels fully disconnect before the next channel connects - preventing momentary shorts that could corrupt sensitive analog measurements or damage downstream circuitry.
DG408LDY-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 29Ohm
- Channel-to-Channel Matching (ΔRon):
- 1Ohm
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- ±3V ~ 6V
- Switch Time (Ton, Toff) (Max):
- 55ns, 25ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 7pF, 20pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -82dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG408LDY-T1-E3 FAQ
1.How can I place an order for DG408LDY-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG408LDY-T1-E3 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 DG408LDY-T1-E3 reliable?
The price and inventory of DG408LDY-T1-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG408LDY-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG408LDY-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG408LDY-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG408LDY-T1-E3?
DG408LDY-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG408LDY-T1-E3 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 DG408LDY-T1-E3?
For technical support, including DG408LDY-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG408LDY-T1-E3 requirements.
6.How does Aetrix verify that DG408LDY-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG408LDY-T1-E3 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 DG408LDY-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG408LDY-T1-E3?
All DG408LDY-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG408LDY-T1-E3, 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 DG408LDY-T1-E3 part is unused and in its original packaging.
Return procedure for DG408LDY-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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