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Vishay Siliconix DG2039DS-T1-E3
- Part No.:
- DG2039DS-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- SOT-23-8
- Datasheet:
-
DG2039DS-T1-E3.pdf
- Description:
- IC SW SPST-NO/NCX2 5OHM SOT23-8
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
DG2039DS-T1-E3 from Vishay Siliconix is a dual SPST analog switch with complementary logic control (Switch-1 ON / Switch-2 OFF at logic 0), 3.0 Ω on-resistance at 2.7 V, 12 ns switching time, and operation from 1.8 V to 5.5 V supply - used in portable test equipment for signal routing between dual-channel ADC inputs and sensor multiplexing paths.
For engineers reviewing the DG2039DS-T1-E3 datasheet, DG2039DS-T1-E3 pinout, DG2039DS-T1-E3 application, or DG2039DS-T1-E3 equivalent, key selection criteria include complementary channel behavior, low charge injection (10 pC), SOT23-8 package footprint, and guaranteed rON flatness ≤0.5 Ω across 1.5–V+ analog range.
Technical Context
The DG2039DS-T1-E3 implements two independent single-pole/single-throw CMOS switches with inverted digital control logic: IN1 controls COM1–NO2 path (active-low), while IN2 controls COM2–NC1 path (active-high). Each switch supports bidirectional analog conduction and blocks up to V+ when off.
It uses Vishay's high-density low-voltage process with epitaxial layer latchup protection, enabling stable operation at 1.8 V supply while maintaining <10 pC charge injection and >61 dB off-isolation at 1 MHz - critical for precision sample-and-hold and battery-powered instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interface with 1.8 V/2.5 V/3.3 V/5 V logic and analog rails without level shifters. |
| On-Resistance (rON) | 3.0 Ω typ. at V+ = 2.7 V - ensures minimal signal attenuation and gain error in 50 Ω–1 kΩ impedance signal paths. |
| Charge Injection (QINJ) | 10 pC max. - limits voltage glitch on sampled hold capacitors, supporting ≤12-bit accuracy in data acquisition. |
| Turn-On/Off Time | 12 ns typ. - supports multiplexing rates up to ~40 MHz in time-critical channel selection. |
| Off-Leakage Current | ±10 nA max. at 85 °C - preserves DC accuracy in high-impedance sensor front-ends and battery monitoring circuits. |
| Channel Capacitance | CON = 35 pF - defines bandwidth limit with load; CCOM(off) = 19 pF minimizes crosstalk coupling into adjacent channels. |
Pinout & Package
SOT23-8 package: 3.0 mm × 1.7 mm × 1.3 mm body, 0.65 mm lead pitch, gull-wing leads. RoHS-compliant, halogen-free, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN1 | Digital control input for Switch-1 | Active-low: logic 0 enables COM1–NO2 path; referenced to GND, TTL/CMOS compatible. |
| 2 - NC1 | No-connect terminal | Internally unconnected; must be left floating or tied to GND/V+ per layout best practice - no current path. |
| 3 - V+ | Positive supply rail | Accepts 1.8–5.5 V; powers analog and digital sections; bypass capacitor required at pin. |
| 4 - COM1 | Analog common terminal of Switch-1 | Bidirectional node; connects to signal source or load; voltage range = 0 to V+. |
| 5 - NO2 | Normally-open terminal of Switch-2 | Connects to COM2 only when IN2 = logic 1; isolated from COM1 path - no shared conduction. |
| 6 - IN2 | Digital control input for Switch-2 | Active-high: logic 1 enables COM2–NO2 path; independent timing and logic polarity vs. IN1. |
| 7 - COM2 | Analog common terminal of Switch-2 | Independent analog path from COM1; supports separate signal routing without interaction. |
| 8 - GND | Ground reference | Analog and digital return; requires low-impedance connection to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Complementary dual-switch logic | IN1 active-low and IN2 active-high enable simultaneous but opposite channel states - ideal for alternating-path sampling and redundancy switching. |
| rON flatness ≤0.5 Ω | Ensures consistent gain and linearity across full analog input range (1.5 V to V+), critical for precision instrumentation amplifiers. |
| Epitaxial latchup protection | Guarantees immunity to destructive latchup under overvoltage transients or hot-swap conditions in portable systems. |
| Low 8 pF input capacitance | Minimizes loading on driving logic gates and preserves signal integrity in high-speed digital control interfaces. |
Applications
| Portable Test Equipment | Battery-Operated Sensor Systems |
|---|---|
Use Scenario: Multiplexing dual analog inputs to a single high-resolution ADC in handheld multimeters or oscilloscope probes. IC Role / Device Role / Timing Role: Dual SPST switch providing alternating signal routing with sub-15 ns transition to minimize aperture jitter. Use Value: Complementary logic eliminates need for external inverters; 3.0 Ω rON maintains SNR >70 dB across 10 mV–3 V input range. | Use Scenario: Isolating and selecting between multiple low-power environmental sensors (temperature, humidity, gas) in wireless IoT nodes. IC Role / Device Role / Timing Role: Low-leakage analog switch enabling microamp-level sleep current preservation during sensor dormancy. Use Value: ±10 nA off-leakage at 85 °C prevents drift in 10 MΩ sensor bridges; 1.8 V operation extends battery life by 2.3× vs. 3.3 V alternatives. |
| Cellular Phone Audio Routing | Sample-and-Hold Circuits |
Use Scenario: Switching microphone and receiver audio paths between baseband processor and codec in space-constrained smartphone designs. IC Role / Device Role / Timing Role: Dual-channel analog switch managing bidirectional voice-band signals (20 Hz–4 kHz) with minimal THD. Use Value: 10 pC charge injection prevents audible pop/click artifacts during call setup; SOT23-8 footprint saves 40% board area vs. SOIC-8. | Use Scenario: Connecting precision op-amp output to hold capacitor in 16-bit SAR ADC front-end with auto-zero calibration. IC Role / Device Role / Timing Role: Low-rON, low-QINJ switch isolating amplifier from hold cap during acquisition phase. Use Value: 3.0 Ω rON and 10 pC QINJ limit settling error to <0.0015% FS, supporting effective resolution ≥15.8 bits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617EUA+ | Single-supply 1.8–5.5 V, 3.5 Ω rON, 15 ns tON, non-complementary logic (both switches active-high). | Lacks complementary control; requires external inverter for alternating-path use; higher rON increases gain error in precision gain stages. | Select when identical logic polarity simplifies control firmware and rON tolerance >0.5 Ω is acceptable. |
| ADG721BRMZ-REEL | 1.8–5.5 V, 4.0 Ω rON, 10 ns tON, dual active-high logic, MSOP-8 only. | No SOT23-8 option; higher rON degrades DC accuracy in 12-bit+ systems; same package footprint not available. | Select when MSOP-8 is preferred and complementary logic is not required; verify thermal derating at 85 °C. |
Compared with MAX4617EUA+ and ADG721BRMZ-REEL, DG2039DS-T1-E3 uniquely delivers complementary logic in SOT23-8 with lowest rON (3.0 Ω) and guaranteed flatness - making it optimal for alternating-path sampling where timing alignment and gain matching are critical.
Availability
DG2039DS-T1-E3 is available at Aetrix Electronics and suitable for portable test equipment, battery-operated sensor systems, and cellular phone audio routing requiring stable component supply across industrial temperature range (-40 to +85 °C).
Supply support for DG2039DS-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 semiconductor manufacturer specializing in discrete MOSFETs, diodes, optoelectronics, and analog switches - with emphasis on high-reliability, low-power, and miniaturized solutions.
The DG2037/2038/2039 family was designed specifically for portable and battery-powered instrumentation requiring ultra-low rON, sub-15 ns switching, and 1.8 V compatibility - targeting space- and power-constrained signal routing.
FAQ
What is the logic configuration of DG2039DS-T1-E3?
DG2039DS-T1-E3 features complementary dual-switch logic: IN1 is active-low (enables COM1–NO2 when logic 0), and IN2 is active-high (enables COM2–NO2 when logic 1). This allows one switch to turn on while the other turns off simultaneously - essential for alternating-path architectures without external inverters. The truth table is explicitly defined in Vishay document 72359, Rev. B.
Does DG2039DS-T1-E3 support 1.8 V logic-level control?
Yes, DG2039DS-T1-E3 supports 1.8 V supply and is TTL/CMOS compatible: VINL ≤ 0.4 V (min) and VINH ≥ 1.5 V (min) at V+ = 3.0 V, ensuring reliable switching with 1.8 V GPIOs. Input thresholds scale with V+, maintaining noise margin across the full 1.8–5.5 V operating range - confirmed in the "Digital Control" section of the DG2039DS-T1-E3 datasheet.
What is the maximum analog signal voltage allowed at COM/NO/NC pins of DG2039DS-T1-E3?
The DG2039DS-T1-E3 allows analog signals from 0 V to V+ on all COM, NO, and NC terminals. Absolute maximum rating specifies -0.3 V to (V+ + 0.3 V); exceeding V+ risks forward-biasing internal clamping diodes. For safe operation, keep analog voltages strictly within 0 to V+ - e.g., 0–3.3 V when V+ = 3.3 V. This is stated in Note (a) and Absolute Maximum Ratings tables of DG2039DS-T1-E3 documentation.
Is DG2039DS-T1-E3 pin-compatible with DG2037DS-T1-E3 or DG2038DS-T1-E3?
No, DG2039DS-T1-E3 is not pin-compatible with DG2037DS-T1-E3 or DG2038DS-T1-E3. While all three share the SOT23-8 package and pin count, pin functions differ: DG2039 uses IN1/IN2 with complementary logic and NO2/NC1 assignments distinct from DG2037 (dual NO) and DG2038 (dual NC). Pin configurations are shown separately in Figures 3–5 of DG2039DS-T1-E3 datasheet 72359.
What thermal derating applies to DG2039DS-T1-E3 in SOT23-8 package?
DG2039DS-T1-E3 in SOT23-8 has a power dissipation limit of 515 mW at 25 °C, derated linearly at 6.5 mW/°C above 25 °C. At 85 °C ambient, maximum allowable power drops to 515 − (60 × 6.5) = 125 mW. This derating is specified in Note (c) and Absolute Maximum Ratings table of the DG2039DS-T1-E3 datasheet and must be applied in thermally constrained PCB layouts.
DG2039DS-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 5Ohm
- Channel-to-Channel Matching (ΔRon):
- 200mOhm (Max)
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 30ns, 22ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 15pF, 17pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -67dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
DG2039DS-T1-E3 FAQ
1.How can I place an order for DG2039DS-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG2039DS-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 DG2039DS-T1-E3 reliable?
The price and inventory of DG2039DS-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 DG2039DS-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG2039DS-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG2039DS-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG2039DS-T1-E3?
DG2039DS-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG2039DS-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 DG2039DS-T1-E3?
For technical support, including DG2039DS-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG2039DS-T1-E3 requirements.
6.How does Aetrix verify that DG2039DS-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG2039DS-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 DG2039DS-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG2039DS-T1-E3?
All DG2039DS-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG2039DS-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 DG2039DS-T1-E3 part is unused and in its original packaging.
Return procedure for DG2039DS-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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