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

Vishay Siliconix DG202BDY-E3

Name: DG202BDY-E3
Brand: Vishay Siliconix
SKU: DG202BDY-E3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DG202BDY-E3

Manufacturer:: Vishay Siliconix

Category:: Analog Switches, Multiplexers, Demultiplexers

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: DG202BDY-E3.pdf

Description:: IC SWITCH SPST-NOX4 85OHM 16SOIC

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Product details

Overview

DG202BDY-E3 from Vishay Siliconix is a quad single-pole single-throw (SPST) normally open analog switch IC designed for precision signal routing in ±15 V dual-supply or +12 V single-supply systems. It delivers 45 Ω on-resistance, 120 ns turn-on time, 1 pC charge injection, ±22 V analog signal range, and 20 pA off-leakage - enabling high-fidelity switching in sample-and-hold circuits and programmable filter designs.

For engineers reviewing the DG202BDY-E3 datasheet, DG202BDY-E3 pinout, DG202BDY-E3 application, or DG202BDY-E3 equivalent, key selection criteria include its bi-directional analog path, TTL/CMOS-compatible control logic, low glitching performance, and TSSOP-16 package compatibility with space-constrained industrial instrumentation and test equipment layouts.

Technical Context

The DG202BDY-E3 implements four independent SPST switches with true bi-directional conduction when on and rail-to-rail blocking when off. Its silicon-gate CMOS process enables low R_DS(on) matching (±2 Ω), minimal charge injection (1 pC), and latchup immunity via epitaxial isolation.

It supports dual-supply operation from ±4.5 V to ±22 V or single-supply from +4.5 V to +25 V, with logic thresholds fixed at V_INL ≤ 0.8 V and V_INH ≥ 2.4 V. All channels maintain full analog signal swing within supply rails without clamping under normal conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Range	±4.5 V to ±22 V dual or +4.5 V to +25 V single - supports wide dynamic range signal conditioning
R_DS(on)	45 Ω typical at ±15 V - ensures minimal signal attenuation and gain error in precision paths
t_ON/t_OFF	120 ns / 65 ns typical - enables sub-microsecond channel switching for fast data acquisition
Charge Injection	1 pC typical - reduces aperture error in sample-and-hold circuits below 1 mV at 1 nF hold capacitance
Off-Leakage (I_S(off))	±20 pA max at ±14 V - preserves DC accuracy in high-impedance sensor interfaces
Analog Signal Range	±15 V (dual) or 0–12 V (single) - covers standard industrial and test equipment voltage domains
Logic Compatibility	TTL and CMOS - simplifies interface to microcontrollers, FPGAs, and legacy digital controllers

Pinout & Package

DG202BDY-E3 is housed in a 16-pin TSSOP package (JEDEC MO-153, Vishay Doc #74417), measuring 5.00 mm × 4.40 mm × 1.20 mm with 0.65 mm pitch. The package is RoHS-compliant, lead-free, and optimized for automated SMT assembly.

Pin/Terminal	Circuit Role	Design Meaning
1, 5, 9, 13	IN1–IN4	Digital control inputs - active-high logic turns corresponding switch ON (NO configuration)
2, 6, 10, 14	S1–S4	Source terminals - bidirectional analog input/output nodes, referenced to system ground
3, 7, 11, 15	D1–D4	Drain terminals - bidirectional analog output/input nodes, connected to load or downstream circuitry
4	V+	Positive supply rail - must be ≥ +4.5 V (single) or ≤ +22 V (dual) for rated operation
8	GND	Analog/digital reference ground - common return for supplies and logic signals
12	V−	Negative supply rail - required for dual-supply mode; sets lower analog voltage limit
16	NC	No connect - internally unconnected; must remain floating or grounded per layout best practice

Key Features

Feature	Design Value
Normally open (NO) topology	Guarantees open-circuit default state - prevents unintended signal coupling during power-up or logic reset
Bi-directional analog path	Enables flexible signal routing in both directions without polarity constraints - ideal for multiplexed sensor front-ends
Low charge injection (1 pC)	Minimizes voltage step error at hold capacitor - critical for <1 µs aperture time in precision sampling
Rail-to-rail blocking	Blocks signals beyond V+ and V− in OFF state - eliminates need for external clamping diodes in ±15 V systems
Latchup-immune process	Epitaxial layer prevents SCR triggering - ensures robust operation under transient overvoltage or hot-swap conditions

Applications

Industrial Instrumentation	Test Equipment
Use Scenario: Multiplexing multiple sensor inputs (thermocouples, strain gauges) into a shared ADC channel with minimal crosstalk and offset drift. IC Role / Device Role / Timing Role: Quad SPST switch routing analog signals under microcontroller control; timing-critical during channel settling before conversion. Use Value: 45 Ω R_DS(on) and ±20 pA leakage preserve measurement accuracy across 100 kΩ–1 MΩ source impedances.	Use Scenario: Configuring programmable gain and filter cutoff frequencies in automated test fixtures using relayless analog path selection. IC Role / Device Role / Timing Role: Digitally controlled switch enabling reconfigurable signal conditioning topologies; requires sub-200 ns switching for test cycle optimization. Use Value: 120 ns t_ON and 1 pC charge injection support stable settling within 500 ns after switching - reducing test dwell time.
Disk Drive Electronics	Portable Instruments
Use Scenario: Isolating head position feedback signals from servo control loops during seek operations to prevent disturbance injection. IC Role / Device Role / Timing Role: High-isolation analog gate (90 dB OIRR) activated only during read/write phases; operates in ±12 V servo supply domain. Use Value: 90 dB off-isolation at 100 kHz and rail-to-rail blocking suppress noise coupling between sensitive analog and noisy digital domains.	Use Scenario: Managing battery-powered signal paths in handheld multimeters and oscilloscope probes where leakage and power efficiency are critical. IC Role / Device Role / Timing Role: Low-quiescent-current analog switch (50 µA I+) enabling long battery life while maintaining 12-bit measurement fidelity. Use Value: 50 µA supply current and 20 pA off-leakage extend operating time >20% versus prior-generation switches in 3.7 V Li-ion systems.

Industrial Instrumentation

Test Equipment

Use Scenario: Multiplexing multiple sensor inputs (thermocouples, strain gauges) into a shared ADC channel with minimal crosstalk and offset drift.

IC Role / Device Role / Timing Role: Quad SPST switch routing analog signals under microcontroller control; timing-critical during channel settling before conversion.

Use Value: 45 Ω R_DS(on) and ±20 pA leakage preserve measurement accuracy across 100 kΩ–1 MΩ source impedances.

Use Scenario: Configuring programmable gain and filter cutoff frequencies in automated test fixtures using relayless analog path selection.

IC Role / Device Role / Timing Role: Digitally controlled switch enabling reconfigurable signal conditioning topologies; requires sub-200 ns switching for test cycle optimization.

Use Value: 120 ns t_ON and 1 pC charge injection support stable settling within 500 ns after switching - reducing test dwell time.

Disk Drive Electronics

Portable Instruments

Use Scenario: Isolating head position feedback signals from servo control loops during seek operations to prevent disturbance injection.

IC Role / Device Role / Timing Role: High-isolation analog gate (90 dB OIRR) activated only during read/write phases; operates in ±12 V servo supply domain.

Use Value: 90 dB off-isolation at 100 kHz and rail-to-rail blocking suppress noise coupling between sensitive analog and noisy digital domains.

Use Scenario: Managing battery-powered signal paths in handheld multimeters and oscilloscope probes where leakage and power efficiency are critical.

IC Role / Device Role / Timing Role: Low-quiescent-current analog switch (50 µA I+) enabling long battery life while maintaining 12-bit measurement fidelity.

Use Value: 50 µA supply current and 20 pA off-leakage extend operating time >20% versus prior-generation switches in 3.7 V Li-ion systems.

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX4617ESE+	Single-supply only (+2.7 V to +12 V); 60 Ω R_DS(on); 2.5 pC charge injection	Not suitable for ±15 V bipolar signal routing; limited to unipolar portable systems	Select when only single-supply operation and smaller footprint (SOIC-16) are required
ADG1419BRUZ	Higher voltage rating (±20 V); 4.5 Ω R_DS(on); 0.2 pC charge injection; SPI interface	Includes serial control and fault protection - adds complexity but improves channel density and diagnostics	Select when ultra-low on-resistance, integrated diagnostics, or daisy-chain configuration are needed

Compared with DG202BDY-E3, MAX4617ESE+ trades bipolar capability and low charge injection for lower cost and simpler logic interface, while ADG1419BRUZ provides superior analog performance and digital integration at higher BOM cost and design complexity.

Availability

DG202BDY-E3 is available at Aetrix Electronics and suitable for industrial instrumentation, automated test equipment, and disk drive electronics requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for DG202BDY-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 components and analog ICs, with leadership in MOSFETs, diodes, optoelectronics, and precision analog switches.

The DG202B family was engineered specifically for high-fidelity analog signal routing in test, measurement, and industrial control systems - emphasizing low distortion, rail-to-rail operation, and robustness across extended temperature ranges.

FAQ

What is the maximum analog signal voltage supported by DG202BDY-E3?

DG202BDY-E3 supports analog signals from V− to V+, with absolute maximum ratings of ±22 V across the supply rails. In dual-supply operation at ±15 V, it reliably passes ±15 V signals without clipping or degradation. The device clamps inputs exceeding supply rails via internal diodes, but forward current must be limited to 30 mA per terminal to avoid damage - confirmed in Absolute Maximum Ratings Table on page 2 of Vishay Document 70037.

Is DG202BDY-E3 pin-compatible with DG202BDJ-E3?

Yes, DG202BDY-E3 and DG202BDJ-E3 share identical pinout and electrical specifications - both are DG202B variants with the same functional block diagram and truth table. The difference lies solely in package: DG202BDY-E3 uses 16-pin TSSOP, while DG202BDJ-E3 uses 16-pin plastic DIP. Pin numbering, terminal functions, and switching behavior are fully consistent per Figure 1 and Ordering Information table in Vishay Document 70037.

Does DG202BDY-E3 require both positive and negative supplies to operate?

No, DG202BDY-E3 supports single-supply operation from +4.5 V to +25 V, with analog signal range from 0 V to V+. Dual-supply mode (±4.5 V to ±22 V) is optional and used when bipolar signal handling is required. Single-supply functionality is verified in the "SPECIFICATIONS (for Single Supply)" section (page 4), where parameters like R_DS(on), t_ON, and leakage are explicitly characterized at V+ = 12 V, V− = 0 V.

What is the thermal derating behavior of DG202BDY-E3 above 75 °C?

DG202BDY-E3 (TSSOP package) has a power dissipation derating factor of 12 mW/°C above 75 °C, as specified in Note e of the Absolute Maximum Ratings table (page 2). At 125 °C ambient, maximum allowable power drops to 640 mW − (12 mW/°C × 50 °C) = 40 mW - requiring careful thermal design in high-temperature industrial enclosures. This value is distinct from SOIC (10 mW/°C) and DIP (6.5 mW/°C) variants.

How does the DG202BDY-E3 differ functionally from DG201BDY-E3?

DG202BDY-E3 is a normally open (NO) switch, while DG201BDY-E3 is normally closed (NC), as defined in the Truth Table (page 1) and DESCRIPTION section (page 2). Both share identical R_DS(on), leakage, speed, and supply specs, but their default states invert logic polarity: DG202BDY-E3 conducts only when INx = HIGH, whereas DG201BDY-E3 conducts when INx = LOW. This functional distinction determines fail-safe behavior in safety-critical routing applications.

DG202BDY-E3 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Packaging:: Bulk

Product Status:: Active

Switch Circuit:: SPST - NO

Multiplexer/Demultiplexer Circuit:: 1:1

Number of Circuits:: 4

On-State Resistance (Max):: 85Ohm

Channel-to-Channel Matching (ΔRon):: 2Ohm

Voltage - Supply, Single (V+):: 4.5V ~ 25V

Voltage - Supply, Dual (V±):: ±4.5V ~ 22V

Switch Time (Ton, Toff) (Max):: 300ns, 200ns

-3db Bandwidth:: -

Charge Injection:: 1pC

Channel Capacitance (CS(off), CD(off)):: 5pF, 5pF

Current - Leakage (IS(off)) (Max):: 500pA

Crosstalk:: -95dB @ 100kHz

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC

DG202BDY-E3 FAQ

1.How can I place an order for DG202BDY-E3 through Aetrix?

Please submit a Request for Quotation (RFQ) for DG202BDY-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 DG202BDY-E3 reliable?

The price and inventory of DG202BDY-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG202BDY-E3 is usually 5 days.

3.What payment methods are accepted for DG202BDY-E3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG202BDY-E3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DG202BDY-E3?

DG202BDY-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DG202BDY-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 DG202BDY-E3?

For technical support, including DG202BDY-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG202BDY-E3 requirements.

6.How does Aetrix verify that DG202BDY-E3 is sourced from the original manufacturer or authorized distributors?

All DG202BDY-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 DG202BDY-E3 meets industry standards.

7.What is the process for return or replacement of DG202BDY-E3?

All DG202BDY-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG202BDY-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 DG202BDY-E3 part is unused and in its original packaging.

Return procedure for DG202BDY-E3:

1.Submit a request within 90 days.

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

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