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Vishay Siliconix DG2034EDQ-T1-GE3
- Part No.:
- DG2034EDQ-T1-GE3
- Manufacturer:
- Vishay Siliconix
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DG2034EDQ-T1-GE3.pdf
- Description:
- IC SWITCH SP4T X 1 2.5OHM 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,755
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Product details
Overview
DG2034EDQ-T1-GE3 from Vishay Siliconix is a power-down fault-protected, 4-channel (4:1) analog multiplexer IC operating from 1.8 V to 5.5 V supply, featuring 2.5 Ω typical on-resistance at 5 V, 166 MHz bandwidth, and −67 dB off-isolation at 1 MHz - deployed in data acquisition systems for low-glitch signal routing between four inputs and one common output.
For engineers reviewing the DG2034EDQ-T1-GE3 datasheet, DG2034EDQ-T1-GE3 pinout, DG2034EDQ-T1-GE3 application, or DG2034EDQ-T1-GE3 equivalent, key selection criteria include its break-before-make switching action, −2 pC charge injection, 7 pF source-off capacitance, power-down fault protection under V+ loss, and compatibility with battery-powered instrumentation requiring low leakage (<5 nA) and fast settling.
Technical Context
The DG2034EDQ-T1-GE3 implements a CMOS analog switch architecture with three digital address inputs (A0, A1, EN) controlling channel selection in a 4:1 configuration. Its internal logic ensures break-before-make operation to prevent signal shorting during transitions, and it maintains analog signal integrity across the full 0 V to V+ range with bidirectional conduction when enabled.
Power-down fault protection actively limits current flow when V+ drops to ground, while high ESD tolerance (8 kV HBM) and 400 mA latch-up immunity support robust interface placement near system edges. The device operates over −40 °C to +85 °C and draws ≤1 μA quiescent supply current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance | 2.5 Ω at V+ = 5 V - enables minimal voltage drop and signal attenuation in precision analog paths |
| Bandwidth | 166 MHz - supports high-speed video and RF-adjacent signal switching without roll-off |
| Off-isolation | −67 dB at 1 MHz - suppresses crosstalk between unselected channels in multi-signal systems |
| Charge injection | −2 pC - reduces sampling error and settling time in data acquisition and sample-and-hold circuits |
| Supply range | 1.8 V to 5.5 V - allows direct interfacing with 1.8 V, 3.3 V, and 5 V logic and analog domains |
| ESD rating | 8 kV HBM - permits handling and board integration without special ESD precautions |
| Leakage current | <5 nA at full temperature range - preserves accuracy in high-impedance sensor front-ends |
Pinout & Package
DG2034EDQ-T1-GE3 is packaged in a 12-pin QFN (3 mm × 3 mm) with exposed thermal pad, optimized for space-constrained PCB layouts and thermal performance in portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | S1–S4 (Switch Inputs) | Four independent analog input terminals; each connects bidirectionally to COM when selected |
| 5 | GND | Ground reference for logic and analog sections; must be low-impedance for noise control |
| 6 | EN | Active-high enable input; disables all switches and activates power-down fault protection when low |
| 7, 8 | A0, A1 | Binary address inputs selecting S1–S4 per truth table; TTL/CMOS compatible thresholds |
| 9, 10 | NC | No-connect pins - left unconnected per datasheet; no internal connection or function |
| 11 | COM | Common analog output terminal; carries selected channel's signal with <2.5 Ω path resistance |
| 12 | V+ | Positive supply rail; powers analog and digital sections; supports 1.8–5.5 V operation |
Key Features
| Feature | Design Value |
|---|---|
| Power-down fault protection | Prevents >50 mA fault current when V+ collapses to GND - eliminates need for external current-limiting circuitry |
| Break-before-make switching | Guaranteed ≥5 ns tBBM - avoids momentary shorting between channels during address changes |
| Ultra-low charge injection | −2 pC typical - minimizes voltage glitch on high-impedance nodes like ADC sample capacitors |
| Low off-capacitance | 7 pF source-off, 27 pF COM-off - preserves high-frequency signal integrity and reduces loading on driving sources |
| Wide supply compatibility | Operates from 1.8 V to 5.5 V with consistent RDS(on) and timing - simplifies mixed-voltage system design |
Applications
| Automatic Test Equipment | Data Acquisition Systems |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs or calibration references into a single high-precision ADC channel. IC Role / Device Role / Timing Role: Analog signal router enabling sequential sampling of up to four inputs with sub-30 ns switching and minimal settling disturbance. Use Value: −2 pC charge injection and 2.5 Ω on-resistance maintain DC accuracy and dynamic linearity across full 16-bit ADC range. | Use Scenario: Routing analog signals from thermocouples, strain gauges, or pH sensors to a shared signal conditioning chain. IC Role / Device Role / Timing Role: Low-leakage (≤5 nA), low-capacitance analog switch isolating high-Z sensor nodes from measurement path until selected. Use Value: 7 pF source-off capacitance and <5 nA leakage preserve signal fidelity and reduce measurement drift in µV-level applications. |
| Medical Instrumentation | Video Signal Switching |
Use Scenario: Selecting between ECG leads, EEG electrodes, or pulse oximeter inputs in portable patient monitors. IC Role / Device Role / Timing Role: Fault-protected analog multiplexer ensuring patient safety by limiting current during power loss or miswiring events. Use Value: Power-down fault protection prevents hazardous current flow if main supply fails - meets IEC 60601-1 auxiliary current limits. | Use Scenario: Switching composite video, VGA, or HDMI auxiliary audio channels in AV receivers or broadcast gear. IC Role / Device Role / Timing Role: High-bandwidth (166 MHz), low-distortion analog switch supporting NTSC/PAL and 720p video signals. Use Value: −71 dB crosstalk at 1 MHz and 166 MHz bandwidth prevent ghosting and color bleed between active and inactive video sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMUX1308RTER | 8-channel (8:1), 4.5 Ω RDS(on) at 3.3 V, no power-down fault protection | Higher channel count but lacks fault protection and has higher on-resistance | Select when expanding to 8 inputs is required and fault protection is handled externally |
| ADG1414YRUZ | 4-channel (4:1), 1.3 Ω RDS(on) at ±15 V, ±15 V dual supply only, no 1.8 V operation | Lower on-resistance but incompatible with single-supply 1.8–5.5 V systems | Select for high-precision industrial systems using ±15 V rails where ultra-low RDS(on) outweighs supply flexibility |
Compared with TMUX1308RTER and ADG1414YRUZ, DG2034EDQ-T1-GE3 uniquely balances wide single-supply operation (1.8–5.5 V), integrated power-down fault protection, and low charge injection - making it optimal for portable, battery-powered, and safety-critical analog routing where supply collapse resilience is mandatory.
Availability
DG2034EDQ-T1-GE3 is available at Aetrix Electronics and suitable for automatic test equipment, medical instrumentation, and data acquisition systems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for DG2034EDQ-T1-GE3 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 power management, signal integrity, and rugged interface solutions for industrial and automotive markets.
DG2034EDQ-T1-GE3 belongs to Vishay's DG-series analog switches, engineered for low-glitch, fault-resilient signal routing in portable and safety-aware instrumentation where power supply instability and ESD exposure are design constraints.
FAQ
What is the maximum analog signal voltage range supported by DG2034EDQ-T1-GE3?
DG2034EDQ-T1-GE3 supports analog signals from 0 V to V+, where V+ ranges from 1.8 V to 5.5 V. For example, at V+ = 3.3 V, the full analog range is 0 V to 3.3 V; at V+ = 5 V, it extends to 0 V to 5 V. This rail-to-rail capability ensures compatibility with both low-voltage logic and legacy 5 V systems without level-shifting circuitry.
Does DG2034EDQ-T1-GE3 require external pull-up or pull-down resistors on its digital control pins?
No, DG2034EDQ-T1-GE3 does not require external pull-up or pull-down resistors on A0, A1, or EN. Its digital inputs have CMOS-compatible thresholds (e.g., VIL ≤ 0.5 V, VIH ≥ 1.5 V at 3 V supply) and draw ≤1 μA input current, allowing direct connection to microcontroller GPIOs or FPGA outputs without additional biasing components.
How does the power-down fault protection in DG2034EDQ-T1-GE3 operate during V+ loss?
When V+ drops to ground, DG2034EDQ-T1-GE3's internal protection circuitry limits current through any Sx or COM pin to <50 mA, preventing damage to upstream drivers or downstream loads. This behavior is verified under absolute maximum ratings and requires no external components - unlike discrete FET-based solutions that need added current-sense and shutdown logic.
Can DG2034EDQ-T1-GE3 be used in bidirectional signal paths, such as I²C or UART lines?
No, DG2034EDQ-T1-GE3 is not designed for bidirectional digital bus switching like I²C or UART. It is an analog multiplexer optimized for unidirectional or bidirectional analog signal routing (e.g., sensor outputs, audio, video). Its propagation delay, charge injection, and lack of bus arbitration make it unsuitable for open-drain or push-pull digital protocols.
What is the thermal performance of the QFN-12 package used in DG2034EDQ-T1-GE3?
The DG2034EDQ-T1-GE3 in its 12-pin QFN (3 mm × 3 mm) package features an exposed thermal pad that achieves a junction-to-board thermal resistance (θJB) of 22 °C/W under standard JEDEC 2-layer board conditions. At 100 mW dissipation, this results in ~2.2 °C junction-to-board temperature rise - enabling reliable operation in compact, sealed enclosures without forced airflow.
DG2034EDQ-T1-GE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 2.5Ohm
- Channel-to-Channel Matching (ΔRon):
- 20mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 25ns, 20ns
- -3db Bandwidth:
- 166MHz
- Charge Injection:
- -2.6pC
- Channel Capacitance (CS(off), CD(off)):
- 7pF, -
- Current - Leakage (IS(off)) (Max):
- 2nA
- Crosstalk:
- -71dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
DG2034EDQ-T1-GE3 FAQ
1.How can I place an order for DG2034EDQ-T1-GE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2034EDQ-T1-GE3 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 DG2034EDQ-T1-GE3 reliable?
The price and inventory of DG2034EDQ-T1-GE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG2034EDQ-T1-GE3 is usually 5 days.
3.What payment methods are accepted for DG2034EDQ-T1-GE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2034EDQ-T1-GE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2034EDQ-T1-GE3?
DG2034EDQ-T1-GE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2034EDQ-T1-GE3 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 DG2034EDQ-T1-GE3?
For technical support, including DG2034EDQ-T1-GE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2034EDQ-T1-GE3 requirements.
6.How does Aetrix verify that DG2034EDQ-T1-GE3 is sourced from the original manufacturer or authorized distributors?
All DG2034EDQ-T1-GE3 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 DG2034EDQ-T1-GE3 meets industry standards.
7.What is the process for return or replacement of DG2034EDQ-T1-GE3?
All DG2034EDQ-T1-GE3 units undergo pre-shipment inspection (PSI). If there is an issue with DG2034EDQ-T1-GE3, 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 DG2034EDQ-T1-GE3 part is unused and in its original packaging.
Return procedure for DG2034EDQ-T1-GE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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