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Vishay Siliconix DG333ADQ-T1-E3
- Part No.:
- DG333ADQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG333ADQ-T1-E3.pdf
- Description:
- IC SWITCH SPDT X 4 45OHM 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,379
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Product details
Overview
DG333ADQ-T1-E3 from Vishay Siliconix is a precision quad SPDT analog switch IC designed for high-accuracy signal routing in instrumentation and test systems. It features 25 Ω typical on-resistance, 1 pC typical charge injection, ±22 V dual-supply operation, and break-before-make switching - enabling low-distortion audio and switched-capacitor filter applications.
For engineers reviewing the DG333ADQ-T1-E3 datasheet, DG333ADQ-T1-E3 pinout, DG333ADQ-T1-E3 application, or DG333ADQ-T1-E3 equivalent, key selection criteria include rail-to-rail analog signal range, channel-to-channel on-resistance matching (<2 Ω), fast 175 ns turn-on time, and TSSOP-20 packaging for space-constrained PCB layouts.
Technical Context
The DG333ADQ-T1-E3 integrates four independently controlled SPDT switches fabricated in Vishay's HVSG-2 CMOS process, supporting both bipolar (±4 V to ±22 V) and unipolar (5 V to 40 V) supply configurations. Each switch conducts bidirectionally with symmetrical on-resistance and blocks voltages up to supply rails when off.
Its improved charge injection compensation minimizes switching transients, while epitaxial layer construction prevents latchup. The device guarantees break-before-make timing (≥5 ns delay) and supports TTL/CMOS logic inputs with defined thresholds (VINH ≥2.4 V, VINL ≤0.8 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | Rail-to-rail: V− to V+ - enables full dynamic range utilization without clipping in ±15 V or 12 V single-supply systems |
| On-Resistance (RDS(on)) | 25 Ω typ. at ±15 V - ensures minimal signal attenuation and gain error in precision measurement paths |
| On-Resistance Match | <2 Ω max. between channels - critical for matched gain/phase in multi-channel instrumentation front-ends |
| Charge Injection | 1 pC typ. - reduces settling error and droop in sampled-data systems like switched-capacitor filters |
| Turn-On Time | 175 ns max. - supports clock rates up to ~3 MHz in time-multiplexed analog signal routing |
| Off-Leakage Current | 0.25 nA max. at 85°C - preserves accuracy in high-impedance sensor interfaces and battery-powered meters |
| Supply Voltage Range | ±4 V to ±22 V dual or 5 V to 40 V single - accommodates industrial, medical, and telecom power architectures |
Pinout & Package
TSSOP-20 package: 6.5 mm × 4.4 mm body, 0.65 mm pitch, 1.10 mm max height, lead-free (Pb-free) and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7, 9, 11, 13, 15, 17, 19 | Digital control inputs (IN1–IN4) and switch terminals (S1–S8, D1–D4) | IN1–IN4 select SPDT state; S1/S2, S3/S4, etc. are source/drain pairs per channel - pin 15 is NC on DG333A variant |
| 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 | Analog switch terminals and supplies (V+, V−, GND) | V+ and V− power analog core; GND is digital reference; S/D pins route bidirectional signals with no polarity dependence |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input signals spanning full V− to V+ range - eliminates level-shifting circuitry in ±15 V data acquisition systems |
| Break-before-make switching | Guaranteed ≥5 ns dead time prevents momentary shorting during channel transitions - essential for safe multiplexing of voltage sources |
| Low on-resistance flatness (Δ<3 Ω) | Ensures consistent gain across analog input range - critical for linearity in programmable-gain amplifiers and sensor conditioning |
| TTL/CMOS logic compatibility | Accepts standard 0.8 V / 2.4 V logic thresholds - simplifies interface with microcontrollers and FPGAs without level translators |
| ESD tolerance >2 kV | Withstands HBM ESD events per JESD22-A114 - improves robustness during board assembly and field handling |
Applications
| Audio Switching | Test Equipment Multiplexing |
|---|---|
Use Scenario: Routing line-level stereo signals between multiple DAC outputs and headphone/line-out jacks in portable audio analyzers. IC Role / Device Role / Timing Role: Quad SPDT analog switch providing low-crosstalk, low-distortion signal path selection with simultaneous channel independence. Use Value: 80 dB channel-to-channel crosstalk and 25 Ω on-resistance preserve SNR and frequency response up to 20 kHz without audible artifacts. |
Use Scenario: Scanning 16-channel thermocouple inputs into a shared precision ADC in automated calibration benches. IC Role / Device Role / Timing Role: Precision analog multiplexer enabling sequential sampling with minimal offset drift and leakage-induced error. Use Value: 0.25 nA max off-leakage and 1 pC charge injection prevent thermal EMF integration errors and baseline shift over 100-ms sampling windows. |
| Portable Instrumentation | Switched-Capacitor Filter Banks |
Use Scenario: Configuring gain and bandwidth settings in handheld multimeters using capacitor/resistor networks switched by control logic. IC Role / Device Role / Timing Role: Low-power analog switch managing passive component selection under microcontroller command in battery-operated devices. Use Value: <1 μA supply current (DG333AL variant) extends AA-cell life beyond 12 months in sleep-mode operation. |
Use Scenario: Implementing tunable band-pass response in medical EEG front-ends by reconfiguring capacitor arrays at 100 kHz clock rates. IC Role / Device Role / Timing Role: High-speed SPDT switch enabling precise timing-controlled capacitor connection/disconnection in discrete-time filters. Use Value: 175 ns turn-on time supports >3 MHz effective clocking, allowing filter cutoff frequencies up to 150 kHz with stable Q-factor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4674ETP+ | 20-pin TQFN, 4.5 Ω on-resistance, 0.5 pC charge injection, 125 ns tON, ±15 V max supply | Better speed and lower charge injection but narrower supply range and no -40°C to +85°C guaranteed performance at extremes | Select for high-speed, low-charge-injection needs where supply is limited to ±15 V and layout allows TQFN |
| ADG1434BRUZ | 24-pin TSSOP, 4.7 Ω on-resistance, 0.2 pC charge injection, 130 ns tON, ±16.5 V max supply, integrated fault protection | Superior precision and built-in overvoltage protection but larger footprint and higher cost | Select when enhanced robustness against transient overvoltage or tighter on-resistance matching is required |
Compared with MAX4674ETP+ and ADG1434BRUZ, the DG333ADQ-T1-E3 offers broader ±22 V supply tolerance and proven reliability in long-duration industrial instrumentation, trading minor speed and charge injection advantages for wider operating margin and mature qualification.
Availability
DG333ADQ-T1-E3 is available at Aetrix Electronics and suitable for audio switching, test equipment multiplexing, and portable instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG333ADQ-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 medical markets.
The DG333A family was engineered for precision analog signal routing in measurement-grade equipment - emphasizing low leakage, matched on-resistance, and transient-free switching in harsh electrical environments.
FAQ
What is the maximum analog signal voltage the DG333ADQ-T1-E3 can handle?
The DG333ADQ-T1-E3 supports analog signals from V− to V+, with absolute maximum ratings of ±22 V dual supply or 40 V single supply. Signals exceeding V+ or V− are clamped by internal diodes; forward diode current must be limited to rated values to avoid damage. This makes DG333ADQ-T1-E3 suitable for ±15 V op-amp circuits and 24 V industrial I/O systems.
Does the DG333ADQ-T1-E3 require external pull-up or pull-down resistors on its digital control inputs?
No. The DG333ADQ-T1-E3 features TTL- and CMOS-compatible digital inputs with guaranteed logic thresholds (VINH ≥2.4 V, VINL ≤0.8 V) and input current ≤±1 μA across temperature. Direct connection to microcontroller GPIO or FPGA outputs is supported without external biasing - simplifying PCB layout and reducing BOM count for DG333ADQ-T1-E3 implementations.
Is pin 15 connected on the DG333ADQ-T1-E3?
No. Pin 15 is not connected (NC) on the DG333A variant, including DG333ADQ-T1-E3. This is explicitly documented in the Vishay datasheet (S15-2213-Rev. E). The DG333AL variant uses pin 15 as VL (logic supply), but DG333ADQ-T1-E3 is the DG333A version and must leave pin 15 floating or unconnected in layout.
How does the DG333ADQ-T1-E3 perform in unipolar supply configurations?
In unipolar mode (e.g., V+ = 12 V, V− = 0 V), the DG333ADQ-T1-E3 maintains rail-to-rail analog range (0 V to 12 V), though on-resistance increases to 35 Ω typ. and turn-on time improves to 90 ns. Leakage remains ≤0.25 nA, confirming suitability for battery-powered 5 V–12 V systems where dual supplies are impractical - a key capability verified in DG333ADQ-T1-E3 characterization data.
What thermal derating applies to the DG333ADQ-T1-E3 in TSSOP-20 package?
For the TSSOP-20 package, DG333ADQ-T1-E3 power dissipation must be derated at 10 mW/°C above +75 °C ambient. At +85 °C, maximum allowable power drops to 700 mW (800 mW − [10 × 10]). This derating ensures junction temperature stays within safe limits during continuous operation in enclosed industrial enclosures or high-density PCBs.
DG333ADQ-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 45Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm (Max)
- Voltage - Supply, Single (V+):
- 5V ~ 40V
- Voltage - Supply, Dual (V±):
- ±4V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 10pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -80dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
DG333ADQ-T1-E3 FAQ
1.How can I place an order for DG333ADQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG333ADQ-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 DG333ADQ-T1-E3 reliable?
The price and inventory of DG333ADQ-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 DG333ADQ-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG333ADQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG333ADQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG333ADQ-T1-E3?
DG333ADQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG333ADQ-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 DG333ADQ-T1-E3?
For technical support, including DG333ADQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG333ADQ-T1-E3 requirements.
6.How does Aetrix verify that DG333ADQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG333ADQ-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 DG333ADQ-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG333ADQ-T1-E3?
All DG333ADQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG333ADQ-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 DG333ADQ-T1-E3 part is unused and in its original packaging.
Return procedure for DG333ADQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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