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Vishay Siliconix DG508BEQ-T1-E3
- Part No.:
- DG508BEQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG508BEQ-T1-E3.pdf
- Description:
- IC MUX 8:1 380OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,360
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Product details
Overview
DG508BEQ-T1-E3 from Vishay Siliconix is a precision 8-channel single-ended CMOS analog multiplexer with TTL-compatible control inputs, 44 V absolute maximum supply rating, -40 °C to +125 °C operating range, and break-before-make switching. It routes one of eight analog inputs to a common output under 3-bit binary address (A0–A2) control and is used in high-precision data acquisition systems requiring low charge injection (2 pC) and ultra-low leakage (< 3 pA).
For engineers reviewing the DG508BEQ-T1-E3 datasheet, DG508BEQ-T1-E3 pinout, DG508BEQ-T1-E3 application, or DG508BEQ-T1-E3 equivalent, key selection criteria include on-resistance matching (≤ 480 Ω), off-isolation (-81 dB at 1 MHz), transition time (≤ 400 ns), single/dual supply flexibility (±5 V to ±20 V or +12 V), and TSSOP-16 package compatibility for space-constrained industrial signal routing.
Technical Context
The DG508BEQ-T1-E3 implements a CMOS transmission-gate architecture with enhanced SG-II process technology to minimize parasitic capacitance, charge injection, and leakage. Its decoder/driver stage accepts TTL-level A0–A2 and EN inputs across full temperature range, enabling deterministic channel selection and global disable functionality.
Break-before-make timing (≤15 ns) prevents momentary crosstalk during channel transitions, while rail-to-rail analog signal swing (V− to V+) supports bidirectional conduction and robust signal integrity in both single-supply (+12 V) and dual-supply (±15 V) configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | Full rail-to-rail: −15 V to +15 V (dual supply) or 0 V to +12 V (single supply) - enables direct interfacing with sensors and DACs without level-shifting. |
| On-Resistance (RDS(on)) | Max 480 Ω at −40 °C to +125 °C - ensures minimal voltage drop and gain error in precision measurement paths. |
| Charge Injection | 2 pC typical - reduces settling error and glitch amplitude in sample-and-hold and ADC front-end circuits. |
| Off-Leakage Current | ±50 nA max over full temperature range - preserves accuracy in high-impedance sensor interfaces and battery-powered instrumentation. |
| Transition Time | ≤ 400 ns (RL = 1 MΩ, CL = 35 pF) - supports multiplexing of signals up to ~250 MHz bandwidth with <0.04% THD. |
| Supply Current | 0.3 mA max I+ and −10 μA I− - enables low-power operation in portable and remote monitoring systems. |
| Enable Turn-On/Off Time | tON(EN) ≤ 340 ns, tOFF(EN) ≤ 300 ns - allows fast system-level power gating and synchronized channel stacking. |
Pinout & Package
DG508BEQ-T1-E3 is housed in a 16-lead TSSOP package (JEDEC MO-153, 5.0 mm × 4.4 mm × 1.2 mm), optimized for automated assembly and thermal performance in industrial PCB layouts.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A0) | Address Input LSB | Binary-selects channel 0–7 when combined with A1/A2; TTL-compatible (0.8 V / 2.0 V thresholds). |
| 2 (A1) | Address Input Mid-bit | Part of 3-bit address bus; determines active channel with A0 and A2 per truth table. |
| 3 (A2) | Address Input MSB | Completes 3-bit channel selection; all three address pins must be stable before EN assertion. |
| 4 (EN) | Enable Control | Active-high logic input; disables all switches when low, enabling multi-device stacking without crosstalk. |
| 5 (S1) | Analog Input Channel 1 | Single-ended source terminal; conducts bidirectionally with matched RDS(on) and low CS(off) (3 pF). |
| 6 (S2) | Analog Input Channel 2 | Identical electrical characteristics to S1; part of 8-channel set with uniform on-resistance matching (ΔRDS(on) ≤ 10 Ω). |
| 7 (S3) | Analog Input Channel 3 | Guaranteed low charge injection (2 pC) and off-isolation (−81 dB) - critical for low-distortion audio routing. |
| 8 (S4) | Analog Input Channel 4 | Supports rail-to-rail signal swing; clamped by internal diodes if driven beyond V+ or V− rails. |
| 9 (S5) | Analog Input Channel 5 | Valid for ±5 V to ±20 V dual supply or +12 V single supply - simplifies power domain partitioning. |
| 10 (S6) | Analog Input Channel 6 | Low THD (0.04%) at 20 Hz–20 kHz - suitable for high-fidelity medical sensor signal conditioning. |
| 11 (S7) | Analog Input Channel 7 | Epitaxial layer prevents latch-up (>250 mA JESD78 rating) - enhances reliability in noisy industrial environments. |
| 12 (S8) | Analog Input Channel 8 | Final channel in 8:1 configuration; shares same dynamic specs (tTRANS, tOPEN) as S1–S7. |
| 13 (D) | Common Analog Output | Drain node shared by all channels; low CD(on) (18 pF) minimizes loading on downstream amplifiers or ADC drivers. |
| 14 (V−) | Negative Supply Rail | Bias reference for dual supply; supports −15 V min; also serves as substrate connection for latch-up immunity. |
| 15 (GND) | Digital Ground | Logic return path; isolated from analog ground in mixed-signal designs to reduce noise coupling. |
| 16 (V+) | Positive Supply Rail | Up to +44 V absolute max; powers analog and digital sections; decoupling required per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports V− to V+ swing without clipping - eliminates need for external level shifters in ±15 V data acquisition front-ends. |
| Break-before-make switching | Guaranteed tOPEN ≥ 1 ns prevents transient shorting between adjacent channels - essential for fault-tolerant avionics signal routing. |
| TTL-compatible digital interface | VIL ≤ 0.8 V and VIH ≥ 2.0 V across −40 °C to +125 °C - ensures interoperability with legacy microcontrollers and FPGAs. |
| Ultra-low leakage current | IS(off) ≤ ±50 nA over full temperature range - maintains accuracy in high-Z pH probes and thermocouple amplifiers. |
| Enhanced SG-II CMOS process | Reduces parasitic capacitance (CD(off) = 13 pF) and charge injection (2 pC) - improves settling time and dynamic range in precision ADC applications. |
Applications
| Data Acquisition Systems | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing outputs from 8 temperature sensors into a single 24-bit sigma-delta ADC in an industrial PLC cabinet. IC Role / Device Role / Timing Role: Precision analog switch providing channel isolation, low THD (0.04%), and rail-to-rail input support for direct sensor interface. Use Value: Enables high-resolution measurements without external op-amp buffering, reducing BOM count and board area. | Use Scenario: Routing line-level stereo signals between multiple DSP processors and analog output stages in broadcast mixing consoles. IC Role / Device Role / Timing Role: Low-crosstalk (−88 dB) 8:1 analog switch with fast transition time (≤400 ns) for real-time signal path reconfiguration. Use Value: Preserves audio fidelity across switching events and eliminates audible pop/click due to low charge injection (2 pC). |
| ATE Test Equipment | Medical Instrumentation |
Use Scenario: Selecting DUT signal paths in automated test fixtures verifying mixed-signal ICs with multiple analog I/O pins. IC Role / Device Role / Timing Role: High-voltage-tolerant (44 V abs max) multiplexer supporting wide-range stimulus generation and response capture. Use Value: Eliminates need for relay-based switching, improving test speed, repeatability, and long-term reliability. | Use Scenario: Switching ECG electrode inputs to differential amplifier stages in portable patient monitors with battery-only operation. IC Role / Device Role / Timing Role: Ultra-low leakage (<3 pA typ.) analog switch minimizing input bias current errors in high-gain biopotential amplifiers. Use Value: Maintains diagnostic signal integrity and extends battery life via sub-μA quiescent current (10 μA ISUPPLY). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG508A | Higher RDS(on) (max 450 Ω vs. 480 Ω), narrower temp range (−40 °C to +85 °C), no 44 V abs max rating | Limited to commercial-grade instrumentation; unsuitable for extended-temp industrial or avionics use | Select DG508BEQ-T1-E3 when operating above +85 °C or requiring higher supply voltage margin. |
| DG508A | Legacy version with higher charge injection (5 pC vs. 2 pC), higher leakage (±100 nA), and no enhanced SG-II process | Lower precision in low-level signal paths; higher settling error in high-speed sampling | Choose DG508BEQ-T1-E3 for improved THD (0.04% vs. 0.1%), lower noise floor, and better long-term stability. |
Compared with ADG508A and DG508A, DG508BEQ-T1-E3 delivers superior high-temperature performance, tighter on-resistance matching, and lower distortion - making it the preferred choice for next-generation precision data acquisition and battery-operated medical devices where signal fidelity and reliability are critical.
Availability
DG508BEQ-T1-E3 is available at Aetrix Electronics and suitable for data acquisition systems, audio routing infrastructure, and medical instrumentation requiring stable component supply, extended temperature operation, and long-lifecycle availability.
Supply support for DG508BEQ-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 solutions for industrial, automotive, and aerospace markets.
The DG508B product line was engineered for high-precision, low-distortion analog signal routing in harsh environments - emphasizing rail-to-rail operation, ultra-low leakage, and extended temperature resilience from −40 °C to +125 °C.
FAQ
What is the maximum supply voltage rating for DG508BEQ-T1-E3?
The DG508BEQ-T1-E3 has an absolute maximum supply voltage rating of 44 V referenced to V−, supporting both dual-supply (±20 V) and single-supply (+36 V) configurations. This exceeds legacy alternatives like DG508A and provides design margin for transient protection in industrial power domains. Operation within datasheet limits (±15 V or +12 V) ensures guaranteed parametric performance across −40 °C to +125 °C.
Does DG508BEQ-T1-E3 support single-supply operation?
Yes, DG508BEQ-T1-E3 fully supports single-supply operation at +12 V with guaranteed specifications including on-resistance (max 600 Ω), charge injection (2.5 pC), and THD (0.26%). The device maintains rail-to-rail analog signal swing (0 V to +12 V), enabling direct interface with unipolar sensors and DACs without level-shifting circuitry - a key advantage over older multiplexers requiring dual rails.
What is the pinout compatibility of DG508BEQ-T1-E3 with other packages in the DG508B family?
DG508BEQ-T1-E3 uses the standard 16-pin TSSOP footprint identical to DG508BEY-T1-E3 (SOIC) and DG508BEN-T1-GE4 (miniQFN) in signal pin assignment - A0–A2, EN, S1–S8, D, V+, V−, and GND occupy the same logical positions. However, physical pad layout differs: TSSOP requires 0.65 mm pitch pads per Vishay doc 63550, while miniQFN uses 0.4 mm pitch. No PCB redesign is needed when migrating between SOIC and TSSOP variants.
How does the break-before-make interval affect system timing in DG508BEQ-T1-E3?
The DG508BEQ-T1-E3 guarantees a minimum break-before-make interval (tOPEN) of 1 ns and maximum of 15 ns over full temperature range, preventing momentary shorting between adjacent channels during address changes. This eliminates crosstalk-induced glitches in sensitive measurement paths and allows deterministic timing margins in synchronous data acquisition systems - unlike non-BBM switches that risk signal corruption during rapid channel scanning.
Is DG508BEQ-T1-E3 suitable for medical applications requiring low leakage current?
Yes, DG508BEQ-T1-E3 specifies source off-leakage current (IS(off)) of ±50 nA maximum over −40 °C to +125 °C - well within requirements for ECG, EEG, and pH meter front-ends where input bias currents must remain below 100 pA to avoid measurement drift. Its enhanced SG-II process and epitaxial isolation further ensure long-term stability and latch-up immunity per JESD78, meeting essential safety and reliability criteria for Class II medical electronics.
DG508BEQ-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 380Ohm
- Channel-to-Channel Matching (ΔRon):
- 10Ohm
- Voltage - Supply, Single (V+):
- 12V ~ 44V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 250ns, 240ns
- -3db Bandwidth:
- 250MHz
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 13pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -88dB @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
DG508BEQ-T1-E3 FAQ
1.How can I place an order for DG508BEQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG508BEQ-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 DG508BEQ-T1-E3 reliable?
The price and inventory of DG508BEQ-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 DG508BEQ-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG508BEQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG508BEQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG508BEQ-T1-E3?
DG508BEQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG508BEQ-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 DG508BEQ-T1-E3?
For technical support, including DG508BEQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG508BEQ-T1-E3 requirements.
6.How does Aetrix verify that DG508BEQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG508BEQ-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 DG508BEQ-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG508BEQ-T1-E3?
All DG508BEQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG508BEQ-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 DG508BEQ-T1-E3 part is unused and in its original packaging.
Return procedure for DG508BEQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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