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Home > Products > Integrated Circuits (ICs) > Interface > Analog Switches, Multiplexers, Demultiplexers

Vishay Siliconix DG333ADJ-E3

Name: DG333ADJ-E3
Brand: Vishay Siliconix
SKU: DG333ADJ-E3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DG333ADJ-E3

Manufacturer:: Vishay Siliconix

Category:: Analog Switches, Multiplexers, Demultiplexers

Package:: 20-DIP (0.300", 7.62mm)

Datasheet:: DG333ADJ-E3.pdf

Description:: IC SWITCH SPDT X 4 45OHM 20DIP

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Product details

Overview

DG333ADJ-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, 175 ns max turn-on time, ±22 V dual-supply operation, and break-before-make switching - enabling rail-to-rail analog signal control in battery-powered or high-voltage industrial measurement circuits.

For engineers reviewing the DG333ADJ-E3 datasheet, DG333ADJ-E3 pinout, DG333ADJ-E3 application, or DG333ADJ-E3 equivalent, key selection criteria include on-resistance matching (<2 Ω), low charge injection (10 pC typ.), leakage performance (0.25 nA max off-leakage), and compatibility with TTL/CMOS logic interfaces across -40 °C to +85 °C.

Technical Context

The DG333ADJ-E3 implements 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) supply configurations. Each channel conducts bidirectionally with matched on-resistance and flat R_DS(on) (Δ <3 Ω over ±5 V signal range).

It employs improved charge injection compensation to minimize switching transients and integrates epitaxial latchup protection. Pin 15 is not connected - a mechanical and electrical distinction from the DG333AL variant which uses Pin 15 as VL (logic supply).

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 multiplexing paths
Turn-on time	175 ns max - supports sampling rates up to ~5.7 MHz in switched-capacitor filter clocking
Analog signal range	±22 V - enables direct interface with industrial sensor outputs and ±15 V op-amp stages without level-shifting
Off-leakage current	0.25 nA max at 25 °C - preserves accuracy in high-impedance integrator or sample-hold circuits
Charge injection	10 pC max - limits voltage glitch on capacitive loads (e.g., 10 nF hold capacitor sees <1 mV step)
Supply range	5 V to 40 V single or ±4 V to ±22 V dual - simplifies power architecture in mixed-signal systems with varied rail requirements
Logic compatibility	TTL/CMOS - allows direct connection to FPGA I/O, microcontroller GPIO, or ASIC control buses without buffering

Pinout & Package

Package: 20-pin plastic DIP (Dual In-line Package), wide-body outline per Vishay Doc. 71262. Body width 26.92 mm max, lead pitch 2.54 mm, through-hole mounting.

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 5, 7, 13, 14, 16, 18	Switch terminals (S1–S8)	Source/drain connections for four SPDT channels; bidirectional conduction when enabled
2, 4, 6, 8, 12, 15, 17, 19	Control inputs (IN1–IN4, D1–D4)	Independent digital control lines; logic high selects "normally open" path per truth table
9, 20	Power rails (V+, V−)	Analog supply pins; support symmetric or asymmetric dual supplies up to ±22 V
10	GND	Analog/digital reference common; must be low-impedance for leakage and noise control
11	No connect (NC)	Pin 15 is not connected on DG333ADJ-E3 - unused and must remain floating or grounded per layout best practice

Key Features

Feature	Design Value
Rail-to-rail signal handling	Supports analog signals from V− to V+ without clipping - eliminates need for external clamping diodes in ±15 V systems
Break-before-make switching	Guaranteed 5 ns minimum delay between channel disconnect and reconnect - prevents momentary short-circuits in multiplexer crosspoints
On-resistance matching	<2 Ω max mismatch between any two channels - critical for ratio-metric measurements and differential signal routing
Low power consumption	200 μA max supply current - enables integration into portable test equipment with multi-day battery life
ESD tolerance	>2 kV HBM - enhances robustness during board assembly and field handling without additional protection circuitry

Applications

Audio Signal Routing	Automated Test Equipment (ATE)
Use Scenario: Selecting between multiple microphone preamp outputs or line-level sources in professional audio mixers. IC Role / Device Role / Timing Role: Quad SPDT analog switch providing low-distortion, low-crosstalk signal path selection under microcontroller control. Use Value: 80 dB crosstalk and 25 Ω on-resistance preserve dynamic range and frequency response up to 20 kHz without audible artifacts.	Use Scenario: Multiplexing DUT signals to shared measurement resources (e.g., DMM, oscilloscope inputs) in rack-mounted ATE systems. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential channel scanning with sub-200 ns settling for high-throughput parametric testing. Use Value: 0.25 nA off-leakage and 10 pC charge injection ensure accurate DC voltage and capacitance measurements across 100+ test points.
Portable Medical Instrumentation	Switched-Capacitor Filter Banks
Use Scenario: Configuring electrode input paths (ECG, EEG) with programmable gain and filtering in handheld patient monitors. IC Role / Device Role / Timing Role: Low-power analog switch routing biopotential signals while maintaining ultra-low input bias current integrity. Use Value: DG333ADJ-E3's <1 μA supply current and 0.25 nA leakage prevent baseline drift and offset accumulation in high-gain front ends.	Use Scenario: Clocking capacitor arrays in tunable band-pass filters for spectrum analysis or communication channel selection. IC Role / Device Role / Timing Role: High-speed, low-charge-injection switch enabling precise capacitor reconfiguration at clock frequencies up to 5 MHz. Use Value: 175 ns turn-on time and flat R_DS(on) allow stable filter center frequency and Q-factor across temperature and supply variation.

Audio Signal Routing

Automated Test Equipment (ATE)

Use Scenario: Selecting between multiple microphone preamp outputs or line-level sources in professional audio mixers.

IC Role / Device Role / Timing Role: Quad SPDT analog switch providing low-distortion, low-crosstalk signal path selection under microcontroller control.

Use Value: 80 dB crosstalk and 25 Ω on-resistance preserve dynamic range and frequency response up to 20 kHz without audible artifacts.

Use Scenario: Multiplexing DUT signals to shared measurement resources (e.g., DMM, oscilloscope inputs) in rack-mounted ATE systems.

IC Role / Device Role / Timing Role: Precision analog switch enabling sequential channel scanning with sub-200 ns settling for high-throughput parametric testing.

Use Value: 0.25 nA off-leakage and 10 pC charge injection ensure accurate DC voltage and capacitance measurements across 100+ test points.

Portable Medical Instrumentation

Switched-Capacitor Filter Banks

Use Scenario: Configuring electrode input paths (ECG, EEG) with programmable gain and filtering in handheld patient monitors.

IC Role / Device Role / Timing Role: Low-power analog switch routing biopotential signals while maintaining ultra-low input bias current integrity.

Use Value: DG333ADJ-E3's <1 μA supply current and 0.25 nA leakage prevent baseline drift and offset accumulation in high-gain front ends.

Use Scenario: Clocking capacitor arrays in tunable band-pass filters for spectrum analysis or communication channel selection.

IC Role / Device Role / Timing Role: High-speed, low-charge-injection switch enabling precise capacitor reconfiguration at clock frequencies up to 5 MHz.

Use Value: 175 ns turn-on time and flat R_DS(on) allow stable filter center frequency and Q-factor across temperature and supply variation.

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
MAX4674ESE+	Higher on-resistance (45 Ω typ.), lower supply voltage range (±20 V max), no break-before-make guarantee	Suitable for cost-sensitive consumer-grade audio routing where speed and leakage are less critical	Select when budget constraints outweigh precision requirements and ±22 V operation is unnecessary
ADG1434BRUZ	Lower on-resistance (1.3 Ω typ.), higher supply current (2 mA), TSSOP-20 only, no DIP option	Better for high-precision data acquisition but incompatible with through-hole prototyping or legacy DIP layouts	Choose for metrology-grade systems requiring sub-ohm matching - only if PCB redesign for surface-mount is feasible

Compared with MAX4674ESE+ and ADG1434BRUZ, the DG333ADJ-E3 uniquely balances ±22 V capability, DIP package availability, and 25 Ω on-resistance - making it optimal for industrial test fixtures and medical devices needing field-serviceable through-hole assembly and wide signal swing.

Availability

DG333ADJ-E3 is available at Aetrix Electronics and suitable for automated test equipment, portable medical instrumentation, and precision audio switching requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DG333ADJ-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 for industrial, automotive, and medical markets.

The DG333A family was engineered for high-accuracy analog signal routing in environments demanding low leakage, rail-to-rail operation, and robust ESD performance - targeting test instrumentation, portable diagnostics, and communications infrastructure.

FAQ

What is the maximum analog signal voltage supported by DG333ADJ-E3?

DG333ADJ-E3 supports analog signals from V− to V+, with absolute maximum ratings of ±22 V on the analog supply rails. Signals exceeding V+ or V− are clamped by internal diodes; forward diode current must be limited to rated values to avoid damage. This allows direct interfacing with ±15 V op-amp stages and industrial sensor outputs without external protection.

Does DG333ADJ-E3 require separate logic and analog supplies?

No - DG333ADJ-E3 uses a single set of supply pins (V+, V−, GND) for both analog signal handling and digital control. Its TTL/CMOS-compatible inputs operate directly from the same V+/V− rails, eliminating need for auxiliary logic supplies. Note: DG333AL variants use Pin 15 (VL) for dedicated logic supply, but DG333ADJ-E3 has Pin 15 NC.

Can DG333ADJ-E3 be used in unipolar supply configurations?

Yes - DG333ADJ-E3 supports unipolar operation from 5 V to 40 V (V+ = supply, V− = GND). In this mode, analog signal range is 0 V to V+, and specifications such as on-resistance (35 Ω typ.) and switching time (90 ns typ. turn-on) are validated per datasheet Section "Specifications (Unipolar Supplies)".

What is the thermal derating behavior of DG333ADJ-E3 in DIP package?

In its 20-pin plastic DIP package, DG333ADJ-E3 has a power dissipation limit of 890 mW at ≤75 °C ambient. Above 75 °C, power must be linearly derated at 12 mW/°C. This requires thermal design consideration in enclosed or high-ambient environments - e.g., at 105 °C ambient, max allowable dissipation drops to 530 mW.

Is break-before-make timing guaranteed for all channels of DG333ADJ-E3?

Yes - DG333ADJ-E3 guarantees a minimum 5 ns break-before-make time delay (t_D) across all four SPDT channels, measured per Figure 3 in the datasheet. This prevents momentary short-circuits during channel transitions, ensuring safe operation in multiplexer crosspoint and signal-routing applications.

DG333ADJ-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

DG333ADJ-E3 FAQ

1.How can I place an order for DG333ADJ-E3 through Aetrix?

Please submit a Request for Quotation (RFQ) for DG333ADJ-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 DG333ADJ-E3 reliable?

The price and inventory of DG333ADJ-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG333ADJ-E3 is usually 5 days.

3.What payment methods are accepted for DG333ADJ-E3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG333ADJ-E3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DG333ADJ-E3?

DG333ADJ-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DG333ADJ-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 DG333ADJ-E3?

For technical support, including DG333ADJ-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG333ADJ-E3 requirements.

6.How does Aetrix verify that DG333ADJ-E3 is sourced from the original manufacturer or authorized distributors?

All DG333ADJ-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 DG333ADJ-E3 meets industry standards.

7.What is the process for return or replacement of DG333ADJ-E3?

All DG333ADJ-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG333ADJ-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 DG333ADJ-E3 part is unused and in its original packaging.

Return procedure for DG333ADJ-E3:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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