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Vishay Siliconix DG408LDQ-T1-E3
- Part No.:
- DG408LDQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG408LDQ-T1-E3.pdf
- Description:
- IC MUX 8:1 29OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,952
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Product details
Overview
DG408LDQ-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-ideal for high-accuracy data acquisition in portable test equipment.
For engineers reviewing the DG408LDQ-T1-E3 datasheet, DG408LDQ-T1-E3 pinout, DG408LDQ-T1-E3 application, or DG408LDQ-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 TSSOP-16 package suitability for space-constrained battery-powered systems.
Technical Context
The DG408LDQ-T1-E3 uses BiCMOS wafer fabrication to achieve low on-resistance flatness (≤7 Ω), fast transition time (≤60 ns), and guaranteed break-before-make timing (≥1 ns) across all channels. Its digital control interface accepts logic thresholds as low as 0.4 V (low) and 2 V (high) at 3 V supply, enabling direct interfacing with 3 V microcontrollers without level shifting.
It supports rail-to-rail analog signal ranges: 0–12 V (single 12 V), 0–5 V (single 5 V), 0–3 V (single 3 V), or ±5 V (dual ±5 V), with leakage currents specified down to –10 nA over –40 °C to +85 °C. Channel-to-channel RDS(on) matching is ≤3 Ω, ensuring consistent gain and minimal crosstalk in multi-channel sampling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | 0–12 V (12 V single supply); enables full-scale sensor or DAC output routing without clipping |
| RDS(on) | 17 Ω typ. at V+ = 12 V; ensures <0.2% gain error in 12-bit systems with 1 kΩ load |
| tON(EN) | 38 ns typ.; supports >10 MSPS multiplexed sampling in high-speed DAQ |
| Charge Injection | 1 pC typ.; limits voltage glitch to <1 mV on 1 nF hold capacitor, critical for precision S/H |
| Off-Isolation | 82 dB at 1 MHz; suppresses >100:1 crosstalk between active and inactive channels |
| IS(OFF) | 0.2 nA max. at 25 °C; maintains <1 LSB error in 16-bit systems with 1 MΩ source impedance |
| Supply Range | 3–12 V single or ±3 V to ±6 V dual; allows flexible power architecture in mixed-signal PCBs |
Pinout & Package
Package: 16-pin TSSOP (JEDEC MS-012, 5.0 mm × 4.4 mm × 1.2 mm height), RoHS-compliant, lead-free (E3 suffix), rated for –40 °C to +85 °C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S1) | Analog Input Channel 1 | First of eight bidirectional analog switch terminals; routed to D when A2:A0 = 000 |
| 2 (S2) | Analog Input Channel 2 | Second channel input; selected when A2:A0 = 001; matched RDS(on) ensures channel uniformity |
| 3 (S3) | Analog Input Channel 3 | Third channel input; shares same on-resistance flatness spec (≤7 Ω) as all Sx pins |
| 4 (S4) | Analog Input Channel 4 | Fourth channel input; worst-case off-isolation occurs here due to proximity to drain pin |
| 5 (S5) | Analog Input Channel 5 | Fifth channel input; supports rail-to-rail analog signals up to V+ or down to V− |
| 6 (S6) | Analog Input Channel 6 | Sixth channel input; clamped by internal diodes if driven beyond V+ or V− rails |
| 7 (S7) | Analog Input Channel 7 | Seventh channel input; requires no external protection when within absolute max ratings |
| 8 (S8) | Analog Input Channel 8 | Eighth channel input; selected by A2:A0 = 111; same leakage and capacitance specs as S1–S7 |
| 9 (D) | Common Analog Output | Single bidirectional output node; connects to selected Sx pin; low CD(on) = 32 pF minimizes bandwidth loss |
| 10 (V−) | Negative Supply Rail | Reference for dual-supply operation; must be connected even in single-supply mode (tied to GND) |
| 11 (GND) | Digital & Analog Ground | Common reference for logic inputs and analog return; separate ground planes recommended for noise isolation |
| 12 (V+) | Positive Supply Rail | Primary power rail; supplies analog and digital circuitry; decoupling capacitor required at pin |
| 13 (EN) | Enable Control Input | Active-high digital enable; disables all switches when low (high-impedance state); 1.5 μA max input current |
| 14 (A0) | LSB Address Input | Binary address bit 0; TTL/CMOS compatible; threshold 0.4 V (3 V supply) ensures robust noise margin |
| 15 (A1) | Mid-Bit Address Input | Binary address bit 1; operates with same logic thresholds and input current as A0 and A2 |
| 16 (A2) | MSB Address Input | Binary address bit 2; completes 3-bit decoding to select one of eight channels; no internal pull-up/down |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed ≥1 ns dead time prevents momentary shorting between adjacent channels during address changes |
| Low charge injection (1 pC) | Minimizes voltage step on sample-hold capacitors, enabling <16-bit accuracy without correction circuitry |
| 2000 V HBM ESD rating | Eliminates need for external ESD protection in handheld or field-deployable instrumentation |
| 82 dB off-isolation at 1 MHz | Ensures >100:1 signal rejection from unselected channels in RF-adjacent or high-frequency analog routing |
| 3 V logic compatibility | Direct interface with 3 V microcontrollers and FPGAs without level translators or additional power domains |
| BiCMOS process technology | Combines MOSFET low on-resistance with bipolar speed for simultaneous low RDS(on) and fast tON/tOFF |
Applications
| Data Acquisition Systems | Battery-Operated Equipment |
|---|---|
Use Scenario: Multiplexing outputs from 8 temperature, pressure, and humidity sensors into a single ADC input. IC Role / Device Role / Timing Role: Precision analog switch providing channel selection with <1 LSB error contribution at 16-bit resolution. Use Value: Enables compact, low-power sensor hubs with rail-to-rail 0–3 V signal handling and <0.2 nA leakage preserving long-term calibration stability. |
Use Scenario: Routing audio line-in, microphone, and codec outputs in a portable medical monitor. IC Role / Device Role / Timing Role: Low-noise, low-distortion analog multiplexer supporting 20 kHz bandwidth with <–80 dB crosstalk. Use Value: Extends battery life via 0.2 μA supply current and eliminates external level shifters using 3 V logic compatibility. |
| Portable Test Equipment | Communication Systems |
Use Scenario: Switching between multiple calibration references and DUT signals in a handheld multimeter. IC Role / Device Role / Timing Role: High-accuracy multiplexer with 17 Ω RDS(on) and 7 Ω flatness ensuring consistent measurement gain across all ranges. Use Value: Delivers <0.01% gain error and <1 mV offset drift over temperature, meeting Class II portable meter specifications. |
Use Scenario: Selecting between multiple antenna feeds or filter banks in DSLAM line cards. IC Role / Device Role / Timing Role: Fast-switching analog router with 38 ns tON supporting dynamic reconfiguration in SDSL protocols. Use Value: Provides 82 dB off-isolation to prevent upstream interference and 2000 V HBM protection for field-replaceable modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4051ACSE+ | Higher RDS(on) (100 Ω typ. at 5 V), slower tON (80 ns), but offers fault protection and ±15 V tolerance | Preferred in industrial PLC I/O modules requiring overvoltage survivability beyond ±6 V | Select MAX4051ACSE+ only when fault protection or wider supply range outweighs speed/accuracy needs |
| ADG1408YRUZ | Lower RDS(on) (4.7 Ω typ.), higher supply current (220 μA), and SPI interface instead of parallel address lines | Suited for FPGA-based systems where serial control simplifies routing and reduces GPIO count | Choose ADG1408YRUZ when system-level integration favors SPI configuration over parallel address decoding |
Compared with DG408LDQ-T1-E3, MAX4051ACSE+ trades speed and on-resistance for ruggedness, while ADG1408YRUZ sacrifices low quiescent current and parallel simplicity for ultra-low RDS(on) and digital configurability-neither is pin-compatible, requiring layout revision.
Availability
DG408LDQ-T1-E3 is available at Aetrix Electronics and suitable for data acquisition systems, battery-operated equipment, and portable test equipment requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for DG408LDQ-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 designs high-performance analog and discrete semiconductors, specializing in precision switching, power management, and sensing solutions for industrial, automotive, and communications markets.
The DG408LDQ-T1-E3 belongs to Vishay's precision analog multiplexer product line, engineered for high-accuracy signal routing in portable, low-power, and mixed-signal applications where leakage, charge injection, and switching consistency are critical.
FAQ
What is the maximum analog signal voltage range supported by DG408LDQ-T1-E3?
DG408LDQ-T1-E3 supports analog signals from 0 V to V+ in single-supply mode (e.g., 0–12 V at V+ = 12 V) or from V− to V+ in dual-supply mode (e.g., –5 V to +5 V at V± = ±5 V). The device clamps signals exceeding these rails via internal diodes, so input voltages must stay within absolute maximum ratings (V+ to V− ≤ 14 V) to avoid damage. DG408LDQ-T1-E3 does not support signals beyond its supply rails without external protection.
Does DG408LDQ-T1-E3 require external pull-up resistors on address pins A0–A2?
No, DG408LDQ-T1-E3 has no internal pull-up or pull-down resistors on A0, A1, or A2. These pins are CMOS-compatible high-impedance inputs with ≤1.5 μA leakage, so external pull-up or pull-down resistors must be added if floating states are possible in the host system. DG408LDQ-T1-E3 relies on the driving controller to maintain valid logic levels during operation to ensure deterministic channel selection.
Can DG408LDQ-T1-E3 operate reliably at 3 V supply with TTL logic inputs?
Yes, DG408LDQ-T1-E3 supports 3 V single-supply operation with logic thresholds of 0.4 V (low) and 2.0 V (high), making it compatible with 3 V TTL and CMOS outputs. At V+ = 3 V, tON(EN) is 70 ns typ. and RDS(on) is 60 Ω typ., both fully characterized and guaranteed over –40 °C to +85 °C. DG408LDQ-T1-E3 maintains break-before-make timing and 0.2 nA leakage even at minimum supply.
What is the thermal derating behavior of DG408LDQ-T1-E3 in TSSOP package?
DG408LDQ-T1-E3 in TSSOP-16 has a power dissipation limit of 650 mW at 75 °C ambient, with linear derating of 12 mW/°C above that temperature. At 105 °C ambient, maximum allowable power drops to 290 mW. This derating applies regardless of supply configuration (single or dual) and assumes standard PCB copper area per Vishay's recommended pad layout (Document 63550). DG408LDQ-T1-E3 thermal performance is validated across its full operating temperature range.
How does DG408LDQ-T1-E3 handle charge injection during switching, and what design impact does it have?
DG408LDQ-T1-E3 specifies 1 pC typical charge injection, measured with CL = 1 nF and VGEN = 0 V. This injects a <1 mV step onto a 1 nF hold capacitor-critical for sample-and-hold circuits. To mitigate, designers should minimize source impedance, use guard traces, and consider correlated double sampling. DG408LDQ-T1-E3's low, tightly specified Q enables 16-bit accuracy without post-correction in precision DAQ systems.
DG408LDQ-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-TSSOP
DG408LDQ-T1-E3 FAQ
1.How can I place an order for DG408LDQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG408LDQ-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 DG408LDQ-T1-E3 reliable?
The price and inventory of DG408LDQ-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 DG408LDQ-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG408LDQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG408LDQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG408LDQ-T1-E3?
DG408LDQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG408LDQ-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 DG408LDQ-T1-E3?
For technical support, including DG408LDQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG408LDQ-T1-E3 requirements.
6.How does Aetrix verify that DG408LDQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG408LDQ-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 DG408LDQ-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG408LDQ-T1-E3?
All DG408LDQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG408LDQ-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 DG408LDQ-T1-E3 part is unused and in its original packaging.
Return procedure for DG408LDQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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