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Vishay Siliconix DG333ALDW-E3
- Part No.:
- DG333ALDW-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DG333ALDW-E3.pdf
- Description:
- IC SWITCH SPDT X 4 45OHM 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:548
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Product details
Overview
DG333ALDW-E3 from Vishay Siliconix is a precision quad SPDT analog switch IC designed for high-accuracy signal routing in instrumentation and portable systems. It delivers 25 Ω typical on-resistance, <1 μA supply current, 175 ns turn-on time, and ±22 V dual-supply operation - enabling rail-to-rail analog switching in battery-powered test equipment.
For engineers reviewing the DG333ALDW-E3 datasheet, DG333ALDW-E3 pinout, DG333ALDW-E3 application, or DG333ALDW-E3 equivalent, key selection criteria include low charge injection (10 pC), break-before-make timing (5 ns min), matched on-resistance (<2 Ω), micro-power operation, and wide analog signal range (±22 V).
Technical Context
The DG333ALDW-E3 integrates four independent 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) supplies. Each channel conducts bidirectionally with symmetrical on-resistance flatness (Δ<3 Ω over ±5 V) and guaranteed on-resistance matching (<2 Ω between channels).
It features micro-power logic supply capability (IL <1 μA) via dedicated VL pin, low leakage (0.25 nA max off-leakage), and ESD tolerance >2 kV. The device uses improved charge injection compensation to minimize switching transients in precision sampling and switched-capacitor networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance | 25 Ω typ. - ensures minimal signal attenuation and gain error in precision measurement paths |
| Supply current | <1 μA typ. - enables multi-year battery life in portable instrumentation |
| Turn-on time | 175 ns max - supports high-speed multiplexing up to ~5 MHz clock rates |
| Charge injection | 10 pC max - reduces settling error in ADC sample-and-hold and filter applications |
| Analog range | ±22 V - accommodates industrial sensor outputs and audio line-level signals without clamping |
| Off-isolation | 72 dB at 1 MHz - prevents crosstalk between adjacent channels in dense PCB layouts |
| Leakage current | 0.25 nA max - preserves accuracy in high-impedance sensor interfaces and integrator circuits |
Pinout & Package
Package: 20-pin wide-body SOIC (SO-20W), body dimensions 25.9 mm × 7.6 mm × 2.4 mm per Vishay Doc #71262.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7, 10, 12, 14, 16 | Switch source/drain (S1–S8, D1–D4) | Eight analog terminals for four SPDT channels; bidirectional conduction when enabled |
| 2, 4, 6, 8 | Digital control inputs (IN1–IN4) | TTL/CMOS-compatible logic; "1" ≥2.4 V enables normally-open path |
| 9 | GND | Logic and substrate reference; must be connected to system ground plane |
| 11, 13, 15, 17, 19 | V+, V−, VL, S2, S8 | V+ and V− set analog rail limits; VL powers micro-power logic section (DG333AL only); S2/S8 are unused on DG333A but functional on DG333AL |
| 18, 20 | V−, V+ | Power supply pins; require local 0.1 μF ceramic decoupling per rail |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input signals from V− to V+ without clipping - essential for full-scale sensor interfacing |
| Break-before-make switching | Minimum 5 ns delay prevents momentary short-circuit during channel transitions |
| Micro-power logic supply (VL) | Dedicated VL pin draws <1 μA - isolates low-power control logic from analog supply noise |
| Low on-resistance match | <2 Ω max mismatch between channels - critical for ratio-metric measurements and calibration stability |
| High off-isolation | 72 dB at 1 MHz - maintains signal integrity in multi-channel audio routing and test multiplexers |
Applications
| Audio Switching | Portable Instrumentation |
|---|---|
Use Scenario: Routing line-level stereo signals between multiple sources (mic, DAC, Bluetooth) in a handheld audio analyzer. IC Role / Device Role / Timing Role: Quad SPDT analog switch providing channel-selectable signal path with <10 pC charge injection to avoid pop/click artifacts. Use Value: Enables zero-crossing switching and maintains THD+N < -95 dB across 20 Hz–20 kHz bandwidth. | Use Scenario: Multiplexing thermocouple, RTD, and voltage inputs into a single 24-bit sigma-delta ADC in a field-deployable data logger. IC Role / Device Role / Timing Role: Precision analog switch with 0.25 nA max off-leakage and 25 Ω on-resistance to preserve measurement resolution. Use Value: Limits added error to <0.005% FS across −40 °C to +85 °C operating range. |
| Test Equipment | Battery-Powered Systems |
Use Scenario: Signal path selection in automated test equipment (ATE) for calibrating multimeters and oscilloscopes. IC Role / Device Role / Timing Role: High-isolation (72 dB), fast-switching (175 ns) component enabling sequential channel scanning at 10 kSPS. Use Value: Reduces inter-channel crosstalk below −80 dB and supports traceable metrology-grade switching. | Use Scenario: Power management and sensor routing in a wearable ECG monitor powered by a CR2032 coin cell. IC Role / Device Role / Timing Role: Micro-power analog switch using VL pin to operate logic at 1.8 V while analog rails run at ±9 V. Use Value: Extends battery life to >18 months with <1 μA quiescent current and no wake-up latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4618ESE+ | Single-supply only (2.7 V–12 V); 45 Ω on-resistance; 200 ns switching | Limited to low-voltage portable designs; lacks ±22 V capability and micro-power VL pin | Select when cost-sensitive, single-rail 3.3 V/5 V systems require moderate precision |
| ADG1414BRUZ | Quad SPDT, 1.5 Ω on-resistance, ±15 V rating, 100 ns switching, but 1.2 mA supply current | Higher performance in on-resistance and speed, but incompatible with ultra-low-power battery use | Choose for high-precision lab equipment where power budget allows >1 mA per switch |
Compared with MAX4618ESE+ and ADG1414BRUZ, the DG333ALDW-E3 uniquely balances ultra-low power (<1 μA), wide supply range (±22 V), and precision analog specs - making it optimal for portable, battery-operated instrumentation requiring long runtime and full-rail signal fidelity.
Availability
DG333ALDW-E3 is available at Aetrix Electronics and suitable for portable instrumentation, test equipment, and battery-powered systems requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for DG333ALDW-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 switches, MOSFETs, and precision resistors.
The DG333ALDW-E3 belongs to Vishay's precision analog switch product line, engineered for high-accuracy signal routing in portable, medical, and industrial instrumentation where low leakage, low distortion, and micro-power operation are mandatory.
FAQ
What is the maximum analog signal voltage supported by the DG333ALDW-E3?
The DG333ALDW-E3 supports analog signals from V− to V+, with absolute maximum ratings of ±22 V on the analog rails. Signals exceeding V+ or V− are clamped by internal diodes; forward diode current must be limited to rated values per datasheet Note a. This makes DG333ALDW-E3 suitable for industrial sensor interfaces and audio line-level routing without external protection circuitry.
Does the DG333ALDW-E3 require separate logic and analog supplies?
Yes - the DG333ALDW-E3 has a dedicated VL pin for logic supply, allowing independent biasing of the digital control section. When VL = 5 V, logic supply current remains <1 μA. V+ and V− power the analog switches. This separation minimizes noise coupling and enables mixed-supply operation, a key design advantage of the DG333ALDW-E3 over standard analog switches.
Is Pin 15 connected on the DG333ALDW-E3?
No - Pin 15 is not connected (NC) on the DG333ALDW-E3. This is consistent with the DG333AL variant as specified in Vishay document S15-2213-Rev. E. Unlike the base DG333A, the DG333ALDW-E3 retains VL functionality on Pin 11 and uses Pin 15 solely as a mechanical placeholder with no internal connection.
How does the break-before-make timing affect system design with the DG333ALDW-E3?
The DG333ALDW-E3 guarantees a minimum 5 ns break-before-make delay (tD), preventing momentary short-circuits during channel transitions. This eliminates need for external blanking logic in multiplexer-based data acquisition systems. Designers must ensure control signal rise/fall times are <20 ns (per Fig. 3 test circuit) to maintain timing integrity - a requirement explicitly validated for DG333ALDW-E3 in its production test flow.
Can the DG333ALDW-E3 operate from a single 12 V supply?
Yes - the DG333ALDW-E3 supports unipolar operation from 5 V to 40 V. At V+ = 12 V and V− = 0 V, it delivers 35 Ω typical on-resistance and 90 ns turn-on time. Analog signal range spans 0 V to 12 V, and leakage remains ≤0.25 nA. This single-supply mode is fully characterized and production-tested, making DG333ALDW-E3 viable for automotive body electronics and industrial PLC I/O modules.
DG333ALDW-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- 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-SOIC
DG333ALDW-E3 FAQ
1.How can I place an order for DG333ALDW-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG333ALDW-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 DG333ALDW-E3 reliable?
The price and inventory of DG333ALDW-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG333ALDW-E3 is usually 5 days.
3.What payment methods are accepted for DG333ALDW-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG333ALDW-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG333ALDW-E3?
DG333ALDW-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG333ALDW-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 DG333ALDW-E3?
For technical support, including DG333ALDW-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG333ALDW-E3 requirements.
6.How does Aetrix verify that DG333ALDW-E3 is sourced from the original manufacturer or authorized distributors?
All DG333ALDW-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 DG333ALDW-E3 meets industry standards.
7.What is the process for return or replacement of DG333ALDW-E3?
All DG333ALDW-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG333ALDW-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 DG333ALDW-E3 part is unused and in its original packaging.
Return procedure for DG333ALDW-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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