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Vishay Siliconix DG2034DQ-T1-E3
- Part No.:
- DG2034DQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DG2034DQ-T1-E3.pdf
- Description:
- IC SWITCH SP4T X 1 5.5OHM 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,913
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Product details
Overview
DG2034DQ-T1-E3 from Vishay Siliconix is a 4-channel (4:1) analog multiplexer IC operating from 1.8 V to 5.5 V, featuring 2.5 Ω on-resistance at 5 V, 166 MHz bandwidth, and power-down fault protection. It routes one of four bidirectional analog inputs to a common output under 3-bit address control (A0, A1, EN), and is used in precision data acquisition systems requiring low charge injection (−2.6 pC) and fast settling.
For engineers reviewing the DG2034DQ-T1-E3 datasheet, DG2034DQ-T1-E3 pinout, DG2034DQ-T1-E3 application, or DG2034DQ-T1-E3 equivalent, key selection criteria include its break-before-make switching action, −67 dB off-isolation at 1 MHz, 7 pF source-off capacitance, and QFN12 (3 mm × 3 mm) package suitability for space-constrained signal routing designs.
Technical Context
The DG2034DQ-T1-E3 implements a CMOS analog switch architecture with integrated power-down fault protection that blocks excessive current when V+ is grounded. Its digital control interface uses standard TTL/CMOS-compatible logic thresholds (VAL = 0.5 V, VAH = 2 V at V+ = 5 V) and exhibits 13 ns turn-on time with 35 pF load.
It supports rail-to-rail analog signal handling (0 V to V+) across all channels, maintains <0.42 Ω on-resistance matching between switches at 5 V, and delivers consistent performance over −40 °C to +85 °C with <1.2 Ω on-resistance flatness.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance | 2.5 Ω at V+ = 4.5 V - enables low insertion loss in signal paths up to ±10 mA per channel |
| Bandwidth | 166 MHz - supports high-fidelity video and fast ADC sampling without significant attenuation |
| Charge injection | −2.6 pC - minimizes voltage glitch in sample-and-hold circuits, reducing settling time errors |
| Off-isolation | −67 dB at 1 MHz - ensures >2000:1 signal rejection between unselected channels and COM |
| 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 - provides robust handling during PCB assembly and system integration |
| Switching time | 13 ns turn-on / 12 ns turn-off - supports multiplexing rates >30 MHz in time-division applications |
Pinout & Package
The DG2034DQ-T1-E3 is housed in a 12-pin QFN package (3 mm × 3 mm, exposed thermal pad), optimized for low-inductance signal routing and thermal dissipation in dense layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | S1–S4 (Analog Inputs) | Bidirectional analog terminals; each connects to COM when selected, block up to V+ when off |
| 5 | GND | Ground reference for logic and analog sections; must be low-impedance for noise immunity |
| 6 | EN | Active-high enable input; disables all switches when low, enabling full power-down fault protection |
| 7, 8 | A0, A1 | Binary address inputs selecting S1–S4; operate with TTL/CMOS thresholds independent of V+ |
| 9 | COM | Common analog output/input terminal; handles rail-to-rail signals and shares same voltage range as Sx |
| 10, 11, 12 | V+, NC, NC | V+ supplies internal logic and switch bias; two no-connect pins (11, 12) are reserved for internal test or thermal enhancement |
Key Features
| Feature | Design Value |
|---|---|
| Power-down fault protection | Prevents >50 mA fault current flow when V+ = 0 V, protecting downstream circuitry during supply sequencing |
| Break-before-make switching | Guarantees ≥5 ns isolation gap between channel disconnect and next connect, eliminating signal short-through |
| Ultra-low charge injection | −2.6 pC maximum ensures <1 LSB error in 16-bit SAR ADC sample-and-hold stages |
| Low off-capacitance | 7 pF source-off capacitance minimizes crosstalk and loading on high-impedance sensor sources |
| Rail-to-rail signal handling | Supports analog voltages from 0 V to V+ on all terminals, enabling seamless integration with single-supply op-amps |
Applications
| Automatic Test Equipment (ATE) | Data Acquisition Systems |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs (thermocouples, strain gauges) into a single high-resolution ADC channel. IC Role / Device Role / Timing Role: Analog signal router with precise channel isolation and minimal settling disturbance. Use Value: 166 MHz bandwidth and −71 dB crosstalk ensure accurate multi-channel measurements without inter-channel interference. | Use Scenario: Selecting among four calibrated reference voltages for DAC output trimming in industrial PLC modules. IC Role / Device Role / Timing Role: Precision analog switch enabling fast, glitch-free reference selection during calibration cycles. Use Value: 2.5 Ω on-resistance and <0.42 Ω matching preserve reference accuracy across all four paths. |
| Medical Instrumentation | Video Signal Switching |
Use Scenario: Routing ECG, EEG, or EMG electrode signals to a shared amplifier and filter stage in portable diagnostics. IC Role / Device Role / Timing Role: Low-noise, low-leakage analog multiplexer preserving microvolt-level biopotential integrity. Use Value: −5 pA max COM off-leakage and 7 pF off-capacitance prevent baseline drift and signal attenuation. | Use Scenario: Switching between HDMI, CVBS, and component video sources in AV receivers before scaling and processing. IC Role / Device Role / Timing Role: High-bandwidth analog switch supporting composite and component video frequencies up to 100 MHz. Use Value: 166 MHz bandwidth and −67 dB off-isolation maintain color fidelity and minimize ghosting artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617EUA+ | Higher on-resistance (3.5 Ω), lower bandwidth (85 MHz), no power-down fault protection | Suitable for lower-speed industrial I/O but not for fault-critical battery-powered systems | Select DG2034DQ-T1-E3 when power-down safety and >100 MHz bandwidth are required |
| ADG734BRUZ | Lower supply range (1.8 V to 5.5 V same), higher charge injection (−5 pC), no break-before-make guarantee | Acceptable for general-purpose muxing but less suitable for precision sample-and-hold | Choose DG2034DQ-T1-E3 for applications demanding <−2.5 pC charge injection and guaranteed BBM timing |
Compared with MAX4617EUA+ and ADG734BRUZ, the DG2034DQ-T1-E3 uniquely combines power-down fault protection, 166 MHz bandwidth, and −2.6 pC charge injection-making it optimal for high-reliability, high-fidelity signal routing where supply sequencing and settling accuracy are critical.
Availability
DG2034DQ-T1-E3 is available at Aetrix Electronics and suitable for automatic test equipment, medical instrumentation, data acquisition systems, and video signal routing requiring stable component supply and long-term production continuity.
Supply support for DG2034DQ-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 power management and signal conditioning devices.
The DG2034DQ-T1-E3 belongs to Vishay's DG-series analog switch family, engineered for precision signal routing in battery-powered, medical, and industrial measurement systems where low distortion and fault resilience are mandatory.
FAQ
What is the maximum analog signal voltage supported by the DG2034DQ-T1-E3?
The DG2034DQ-T1-E3 supports rail-to-rail analog signals from 0 V to V+, meaning the maximum analog voltage equals the applied V+ supply voltage-up to +5.5 V. This allows direct interfacing with sensors, DACs, and op-amps operating within the same supply domain without level-shifting circuitry. The device clamps input voltages exceeding V+ via internal diodes, provided forward current remains within rated limits.
Does the DG2034DQ-T1-E3 require external pull-up resistors on its address lines A0 and A1?
No, the DG2034DQ-T1-E3 does not require external pull-up resistors on A0 or A1. Its digital inputs are CMOS-compatible with defined logic thresholds (VAL ≤ 0.5 V, VAH ≥ 2 V at V+ = 5 V) and draw only ≤1 μA input current. Internal input structures provide sufficient noise margin for direct connection to FPGA GPIOs, microcontroller outputs, or logic buffers without additional biasing components.
How does power-down fault protection function in the DG2034DQ-T1-E3?
When V+ is driven to 0 V while analog signals remain present on Sx or COM pins, the DG2034DQ-T1-E3's internal protection circuitry limits current flow to ≤5 μA (typical) and prevents latch-up. This is achieved through dedicated substrate isolation and controlled gate biasing-ensuring no destructive current path forms between floating analog nodes and ground. The feature is active regardless of EN, A0, or A1 state.
Can the DG2034DQ-T1-E3 be used in bidirectional signal paths?
Yes, the DG2034DQ-T1-E3 supports fully bidirectional analog signal flow. Each switch channel conducts equally well from Sx to COM or COM to Sx when enabled, with matched on-resistance (<0.42 Ω variation) and symmetric charge injection characteristics. This makes it suitable for applications such as shared bus monitoring, transducer excitation/sensing, and reconfigurable signal chains where directionality changes dynamically.
What is the thermal performance of the DG2034DQ-T1-E3 in its QFN12 package?
The DG2034DQ-T1-E3 in its 3 mm × 3 mm QFN12 package has a thermal resistance θJA of 85 °C/W (typical, JEDEC-standard board). With its exposed thermal pad soldered to a 1 cm² copper pour, it sustains continuous operation at full rated current (±50 mA per channel) up to +85 °C ambient. Derating begins above 70 °C at 4 mW/°C, ensuring reliable performance in compact, fanless enclosures.
DG2034DQ-T1-E3 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:
- 1
- On-State Resistance (Max):
- 5.5Ohm
- Channel-to-Channel Matching (ΔRon):
- 160mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 30ns, 20ns
- -3db Bandwidth:
- -
- Charge Injection:
- -4.4pC
- Channel Capacitance (CS(off), CD(off)):
- 13pF, 43pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -77dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
DG2034DQ-T1-E3 FAQ
1.How can I place an order for DG2034DQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2034DQ-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 DG2034DQ-T1-E3 reliable?
The price and inventory of DG2034DQ-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 DG2034DQ-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG2034DQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2034DQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2034DQ-T1-E3?
DG2034DQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2034DQ-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 DG2034DQ-T1-E3?
For technical support, including DG2034DQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2034DQ-T1-E3 requirements.
6.How does Aetrix verify that DG2034DQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG2034DQ-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 DG2034DQ-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG2034DQ-T1-E3?
All DG2034DQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG2034DQ-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 DG2034DQ-T1-E3 part is unused and in its original packaging.
Return procedure for DG2034DQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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