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Vishay Siliconix DG333ALDJ-E3
- Part No.:
- DG333ALDJ-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
DG333ALDJ-E3.pdf
- Description:
- IC SWITCH SPDT X 4 45OHM 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,298
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Product details
Overview
DG333ALDJ-E3 from Vishay Siliconix is a precision quad SPDT analog switch IC designed for high-accuracy signal routing in instrumentation and portable systems. It features 25 Ω typical on-resistance, <1 μA supply current, ±22 V dual-supply operation, and break-before-make switching - enabling rail-to-rail analog signal control in battery-powered test equipment.
For engineers reviewing the DG333ALDJ-E3 datasheet, DG333ALDJ-E3 pinout, DG333ALDJ-E3 application, or DG333ALDJ-E3 equivalent, key selection criteria include low charge injection (10 pC), matched on-resistance (<2 Ω), fast switching (175 ns tON), and micro-power operation for extended runtime in portable instrumentation.
Technical Context
The DG333ALDJ-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 (ΔRDS(on) < 3 Ω over ±5 V).
Its micro-power architecture centers on VL pin (Pin 15) - dedicated logic supply input enabling <1 μW static power consumption. Internal epitaxial layer prevents latchup, and improved charge injection compensation minimizes transient errors during capacitor-switching operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance | 25 Ω typ. - ensures minimal signal attenuation and gain error in precision gain-setting or filter-switching paths |
| Supply current | <1 μA typ. - enables multi-year battery life in handheld meters and portable data loggers |
| Charge injection | 10 pC max. - limits voltage glitch in switched-capacitor filters and sample-hold circuits |
| Switching time | 175 ns tON, 145 ns tOFF - supports >1 MHz clock rates in SC filter applications |
| Analog range | ±22 V - accommodates industrial sensor signals and audio line-level swing without external level-shifting |
| Off-isolation | 72 dB at 1 MHz - suppresses crosstalk between adjacent channels in multi-channel DAQ systems |
| Leakage current | 0.25 nA max. at 85°C - preserves accuracy in high-impedance pH or thermocouple front-ends |
Pinout & Package
Package: 20-pin plastic DIP (0.300" wide), JEDEC MS-001 compliant, lead (Pb)-free with -E3 suffix indicating matte tin termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 7, 10, 13, 16, 19 | Switch inputs (IN1–IN4, S1–S8) | CMOS/TTL-compatible digital control lines; active-high logic selects normally-open path |
| 2, 3, 5, 6, 8, 9, 11, 12, 14, 15, 17, 18, 20 | Analog terminals (D1–D4, S1–S8) | Bidirectional analog I/O pins; each SPDT pair shares common source (Sx) and two drains (Dx, Dx+1) |
| 15 | VL (Logic supply) | Dedicated 5 V logic rail input - isolates digital switching noise from analog signal paths and enables ultra-low quiescent power |
| 19 | GND | Analog/digital reference ground - must be star-connected to minimize ground bounce in mixed-signal layouts |
| 20, 1 | V+, V− | Independent analog supply rails - support rail-to-rail signal handling and eliminate need for external bias networks |
Key Features
| Feature | Design Value |
|---|---|
| Micro-power operation | VL pin enables <1 μW static power - critical for always-on sensor nodes and wearable medical devices |
| Rail-to-rail analog range | Supports signals from V− to V+ - eliminates level-shifter ICs in ±15 V op-amp signal chains |
| Break-before-make switching | 5 ns minimum tD - prevents momentary short-circuits during channel reconfiguration in multiplexed ADC front-ends |
| On-resistance matching | <2 Ω max. mismatch between channels - maintains amplitude consistency across 4-channel simultaneous sampling |
| ESD tolerance | >2 kV HBM - withstands handling in benchtop test environments without additional protection circuitry |
Applications
| Audio Switching | Portable Instrumentation |
|---|---|
Use Scenario: Routing line-level stereo signals between multiple sources (mic, DAC, Bluetooth codec) in a compact mixer. IC Role / Device Role / Timing Role: Quad SPDT analog switch providing channel-selectable signal path with <10 pC charge injection to prevent audible pop/click artifacts. Use Value: Enables zero-crossing switching via synchronized logic control, preserving audio fidelity without external muting circuitry. | Use Scenario: Multiplexing thermocouple, RTD, and pH electrode inputs into a single 24-bit sigma-delta ADC in a handheld multimeter. IC Role / Device Role / Timing Role: Precision analog switch with 0.25 nA leakage and 25 Ω RDS(on) minimizing measurement drift and offset error. Use Value: Eliminates need for per-channel op-amp buffers, reducing BOM count and PCB area while maintaining 0.01% measurement accuracy. |
| Test Equipment | Battery-Powered Systems |
Use Scenario: Configuring programmable gain and filter topology in automated test equipment (ATE) for semiconductor validation. IC Role / Device Role / Timing Role: High-speed SPDT switch enabling <175 ns reconfiguration of RC networks in real-time calibration sequences. Use Value: Supports 10 kHz switching rate in SC filter banks, allowing dynamic bandwidth adjustment without firmware overhead. | Use Scenario: Managing power domains and sensor signal paths in a wireless environmental monitor running on CR2032 coin cell. IC Role / Device Role / Timing Role: Ultra-low-quiescent switch using VL pin to isolate digital control from analog sensing rails. Use Value: Extends battery life to >5 years by reducing system standby current by 95% versus standard analog switches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4618ESE+ | Higher on-resistance (45 Ω), no VL pin, 2.7 V–12 V single-supply only | Limited to low-voltage portable designs; unsuitable for ±15 V industrial signal conditioning | Select when cost sensitivity outweighs precision and dual-supply flexibility |
| ADG1434BRUZ | Lower leakage (0.15 nA), higher price, 16-pin TSSOP only, no VL pin | Better for ultra-high-Z medical sensors but lacks micro-power capability for battery longevity | Prefer for lab-grade instrumentation where leakage dominates error budget over power |
Compared with DG333ALDJ-E3, MAX4618ESE+ trades precision and supply flexibility for lower cost in consumer-grade portable gear, while ADG1434BRUZ improves leakage performance at the expense of power efficiency and package compatibility - making DG333ALDJ-E3 optimal for battery-operated industrial test tools requiring both accuracy and longevity.
Availability
DG333ALDJ-E3 is available at Aetrix Electronics and suitable for portable instrumentation, automated test equipment, and battery-powered medical monitoring systems requiring stable component supply across long production lifecycles.
Supply support for DG333ALDJ-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 computing markets.
The DG333A/DG333AL family targets precision analog signal routing in resource-constrained environments - emphasizing low distortion, micro-power operation, and robust ESD tolerance for field-deployable instrumentation.
FAQ
What is the function of Pin 15 (VL) on the DG333ALDJ-E3?
Pin 15 is the dedicated logic supply (VL) input unique to the DG333AL variant. It accepts a 5 V supply to power internal digital control circuitry independently from analog rails (V+/V−), enabling <1 μA quiescent current and isolating switching noise from sensitive analog paths. This feature is absent on the standard DG333A, where logic is powered from V+.
Can DG333ALDJ-E3 operate from a single 12 V supply?
Yes, DG333ALDJ-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. The analog signal range spans 0 V to 12 V, and VL must still be supplied at 5 V. Full ±22 V bipolar operation requires separate V+ and V− rails.
How does DG333ALDJ-E3 achieve break-before-make timing?
DG333ALDJ-E3 guarantees a minimum 5 ns break interval (tD) between opening one switch path and closing the alternate path within each SPDT section. This is implemented via internal delay circuitry in the level-shift/gate-drive stage, preventing momentary shorts during reconfiguration - critical for protecting downstream amplifiers in multiplexed sensor interfaces.
Is DG333ALDJ-E3 pin-compatible with DG333ADJ-E3?
Yes, DG333ALDJ-E3 and DG333ADJ-E3 share identical 20-pin DIP footprints, pin functions, and electrical interface. The only functional difference is DG333ALDJ-E3's VL pin (Pin 15), which is NC (no connect) on DG333ADJ-E3. Both parts accept the same control logic and analog signal ranges, enabling drop-in replacement where micro-power operation is required.
What is the maximum continuous current rating per switch in DG333ALDJ-E3?
DG333ALDJ-E3 supports 30 mA continuous current per switch channel under derated conditions. At ambient temperatures above 75 °C, power dissipation must be reduced by 12 mW/°C. Absolute maximum peak pulsed current is 100 mA (1 ms, 10% duty cycle), applicable for transient overload scenarios such as ESD event clamping.
DG333ALDJ-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Through Hole
- Supplier Device Package:
- 20-PDIP
DG333ALDJ-E3 FAQ
1.How can I place an order for DG333ALDJ-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG333ALDJ-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 DG333ALDJ-E3 reliable?
The price and inventory of DG333ALDJ-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG333ALDJ-E3 is usually 5 days.
3.What payment methods are accepted for DG333ALDJ-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG333ALDJ-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG333ALDJ-E3?
DG333ALDJ-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG333ALDJ-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 DG333ALDJ-E3?
For technical support, including DG333ALDJ-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG333ALDJ-E3 requirements.
6.How does Aetrix verify that DG333ALDJ-E3 is sourced from the original manufacturer or authorized distributors?
All DG333ALDJ-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 DG333ALDJ-E3 meets industry standards.
7.What is the process for return or replacement of DG333ALDJ-E3?
All DG333ALDJ-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG333ALDJ-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 DG333ALDJ-E3 part is unused and in its original packaging.
Return procedure for DG333ALDJ-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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