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

Vishay Siliconix DG308BDY-T1-E3

Name: DG308BDY-T1-E3
Brand: Vishay Siliconix
SKU: DG308BDY-T1-E3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DG308BDY-T1-E3

Manufacturer:: Vishay Siliconix

Category:: Analog Switches, Multiplexers, Demultiplexers

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

Datasheet:: DG308BDY-T1-E3.pdf

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

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Product details

Overview

DG308BDY-T1-E3 from Vishay Siliconix is a quad SPST normally-open analog switch IC designed for precision signal routing in instrumentation and test systems. It supports ±22 V dual-supply operation, delivers 45 Ω typical on-resistance, sub-200 ns turn-on time, and 1 pC charge injection - enabling high-fidelity analog switching in sample-and-hold and programmable gain amplifier circuits.

For engineers reviewing the DG308BDY-T1-E3 datasheet, DG308BDY-T1-E3 pinout, DG308BDY-T1-E3 application, or DG308BDY-T1-E3 equivalent, key selection criteria include guaranteed ±22 V analog signal range, low leakage (±20 pA off-state), bi-directional conduction, latchup immunity, and TSSOP-16 package compatibility with space-constrained PCB layouts.

Technical Context

The DG308BDY-T1-E3 implements four independent CMOS transmission gates fabricated in Vishay's silicon-gate process, delivering improved R_DS(on), lower leakage, and faster switching versus legacy DG308A. Its internal level-shifting drive circuit accepts TTL/CMOS-compatible logic inputs (V_INH ≥ 11 V, V_INL ≤ 3.5 V) across full -40 °C to +85 °C operating range.

Each channel features true bi-directional signal flow in the on-state and blocks signals up to supply rails in the off-state. An epitaxial layer prevents latchup, while charge-injection compensation minimizes transients during switching - critical for precision sample-and-hold and multiplexed ADC front-ends.

Key Specifications

Parameter	Value and Actual Design Meaning
Analog Signal Range	±15 V (dual-supply); 0–12 V (single-supply) - supports full-rail input signals without clipping
On-Resistance (R_DS(on))	45 Ω typ. at ±15 V - ensures minimal gain error and voltage drop in precision signal paths
Charge Injection	1 pC max. - limits sampling error in hold capacitors to <1 mV for 1 nF capacitor
Turn-On Time (t_ON)	<200 ns - enables fast channel switching in automated test equipment
Off-Leakage Current	±20 pA max. at ±14 V - preserves accuracy in high-impedance sensor interfaces
Supply Voltage Range	±4 V to ±22 V continuous - accommodates wide industrial and telecom signal swing requirements
Logic Input Thresholds	V_INH ≥ 11 V, V_INL ≤ 3.5 V - ensures robust noise margin with standard 15 V logic drivers

Pinout & Package

Package: 16-pin TSSOP (JEDEC MO-153, Vishay Doc. 74417), 5.0 mm × 6.4 mm footprint, 0.65 mm pitch.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4 (IN1–IN4)	Digital control inputs	Active-high logic; drive corresponding switch ON when ≥11 V
5, 6, 12, 13 (S1–S4)	Source terminals	Bi-directional analog I/O nodes; connect to signal sources or loads
7, 8, 11, 10 (D1–D4)	Drain terminals	Bi-directional analog I/O nodes; mirror Sx connections in ON state
9 (GND)	Ground reference	Logic ground return; must be tied to system digital ground
14 (V+)	Positive supply rail	Bias for internal level shifter and switch PMOS; sets upper analog limit
15 (V−)	Negative supply rail	Bias for internal level shifter and switch NMOS; sets lower analog limit
16 (NC)	No-connect	Internally unconnected; must remain floating or grounded per layout guidelines

Key Features

Feature	Design Value
True bi-directional analog path	Enables signal routing in either direction without polarity constraints - essential for shared bus architectures
Latchup-immune epitaxial construction	Prevents destructive latchup under overvoltage or ESD stress - improves field reliability in industrial environments
Low glitch energy (1 pC)	Minimizes transient voltage spikes during switching - critical for maintaining DC accuracy in sample-and-hold stages
Extended temperature operation	-40 °C to +85 °C ambient range - qualified for use in uncontrolled industrial enclosures and test racks
Single-supply capability	Operates from 4 V to 44 V with V− = 0 V - simplifies power design in battery-powered portable instruments

Applications

Industrial Instrumentation	Test Equipment
Use Scenario: Multiplexing multiple sensor inputs (thermocouples, strain gauges) into a single precision ADC front-end. IC Role / Device Role / Timing Role: Quad SPST analog switch routing low-level mV-range signals with minimal offset and drift. Use Value: 45 Ω R_DS(on) and ±20 pA leakage preserve microvolt-level resolution across all channels.	Use Scenario: Automated switching of calibration references and DUT signals in benchtop multimeters and signal analyzers. IC Role / Device Role / Timing Role: High-speed, low-glitch signal path selector enabling <200 ns channel reconfiguration. Use Value: 1 pC charge injection prevents hold capacitor corruption during rapid reference cycling.
Disk Drives	Sample-and-Hold Circuits
Use Scenario: Routing servo position feedback signals and head actuator control lines in HDD controller ASIC support circuitry. IC Role / Device Role / Timing Role: Robust analog switch handling ±12 V position error signals with latchup immunity. Use Value: Epitaxial isolation withstands motor-induced transients and ESD events common in drive mechanics.	Use Scenario: Precision acquisition phase in data acquisition systems requiring sub-microsecond aperture time. IC Role / Device Role / Timing Role: Normally-open switch controlling analog input connection to hold capacitor. Use Value: <200 ns t_ON and <150 ns t_OFF enable 1 µs aperture window with minimal timing uncertainty.

Industrial Instrumentation

Test Equipment

Use Scenario: Multiplexing multiple sensor inputs (thermocouples, strain gauges) into a single precision ADC front-end.

IC Role / Device Role / Timing Role: Quad SPST analog switch routing low-level mV-range signals with minimal offset and drift.

Use Value: 45 Ω R_DS(on) and ±20 pA leakage preserve microvolt-level resolution across all channels.

Use Scenario: Automated switching of calibration references and DUT signals in benchtop multimeters and signal analyzers.

IC Role / Device Role / Timing Role: High-speed, low-glitch signal path selector enabling <200 ns channel reconfiguration.

Use Value: 1 pC charge injection prevents hold capacitor corruption during rapid reference cycling.

Disk Drives

Sample-and-Hold Circuits

Use Scenario: Routing servo position feedback signals and head actuator control lines in HDD controller ASIC support circuitry.

IC Role / Device Role / Timing Role: Robust analog switch handling ±12 V position error signals with latchup immunity.

Use Value: Epitaxial isolation withstands motor-induced transients and ESD events common in drive mechanics.

Use Scenario: Precision acquisition phase in data acquisition systems requiring sub-microsecond aperture time.

IC Role / Device Role / Timing Role: Normally-open switch controlling analog input connection to hold capacitor.

Use Value: <200 ns t_ON and <150 ns t_OFF enable 1 µs aperture window with minimal timing uncertainty.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX4617ESE+	Lower R_DS(on) (35 Ω), but only ±20 V rating; no TSSOP-16 option - offered in SOIC-16 only	Preferred where tighter on-resistance matching is required, but board space allows SOIC footprint	Select MAX4617ESE+ if ±20 V range suffices and SOIC-16 is acceptable; DG308BDY-T1-E3 remains optimal for ±22 V and TSSOP-16 constraints
ADG1404BRUZ	Higher performance: 4.5 Ω R_DS(on), 0.2 pC charge injection, but requires ±15 V max and costs >3× more	Suitable for ultra-high-precision medical or aerospace DAQ where cost is secondary to accuracy	Choose ADG1404BRUZ only when sub-10 Ω on-resistance and sub-0.5 pC injection are mandatory; DG308BDY-T1-E3 offers best value for industrial-grade instrumentation

Compared with MAX4617ESE+ and ADG1404BRUZ, DG308BDY-T1-E3 uniquely balances ±22 V signal handling, TSSOP-16 compactness, and 45 Ω/1 pC performance at mid-tier cost - making it the preferred choice for volume industrial test and control systems.

Availability

DG308BDY-T1-E3 is available at Aetrix Electronics and suitable for industrial instrumentation, automated test equipment, and disk drive controller designs requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.

Supply support for DG308BDY-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 semiconductor manufacturer specializing in discrete components and analog ICs, with leadership in MOSFETs, diodes, optoelectronics, and precision analog switches.

The DG308B series belongs to Vishay's high-reliability analog switch product line, engineered specifically for industrial and test equipment demanding wide signal range, low distortion, and latchup immunity in harsh operating environments.

FAQ

What is the maximum analog signal voltage supported by DG308BDY-T1-E3?

DG308BDY-T1-E3 supports analog signals from V− to V+, with absolute maximum ratings of ±22 V across the V+ to V− terminals. In dual-supply operation at ±15 V, the guaranteed analog signal range is ±15 V. For single-supply use, it handles 0 V to 12 V with V− = 0 V and V+ = 12 V. Exceeding these ranges risks clamping by internal protection diodes.

Does DG308BDY-T1-E3 require separate logic and analog supplies?

No, DG308BDY-T1-E3 uses a unified supply architecture: the same V+ and V− rails power both the analog switch core and the internal level-shifting logic interface. Digital control inputs (IN1–IN4) accept 0 V / 11–15 V logic levels referenced to GND, eliminating need for auxiliary logic supplies - simplifying power design in mixed-signal systems.

Is DG308BDY-T1-E3 pin-compatible with the older DG308A series?

Yes, DG308BDY-T1-E3 is a direct functional and pin-compatible upgrade to DG308A in all packages including TSSOP-16. It retains identical pinout, logic thresholds, and electrical interface while improving R_DS(on), leakage, speed, and latchup immunity - allowing drop-in replacement without PCB modification.

What is the thermal derating behavior of DG308BDY-T1-E3 above 75 °C?

DG308BDY-T1-E3 has a thermal derating factor of 12 mW/°C above 75 °C for the TSSOP-16 package. Its maximum power dissipation is 640 mW at 75 °C ambient; above that, allowable power decreases linearly - e.g., at 105 °C ambient, max dissipation drops to 280 mW. This reflects its rated storage temperature limit of -65 °C to +125 °C.

Can DG308BDY-T1-E3 operate with unbalanced supply rails, such as +15 V and -5 V?

Yes, DG308BDY-T1-E3 supports asymmetric supplies as long as the total V+ to V− differential remains within ±4 V to ±22 V and each rail stays within absolute maximum ratings (V+ to GND ≤ 25 V, V− to GND ≥ -25 V). For example, +15 V / -5 V yields 20 V differential - fully within spec - and enables custom analog range tailoring in specialized signal conditioning circuits.

DG308BDY-T1-E3 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Last Time Buy

Switch Circuit:: SPST - NO

Multiplexer/Demultiplexer Circuit:: 1:1

Number of Circuits:: 4

On-State Resistance (Max):: 85Ohm

Channel-to-Channel Matching (ΔRon):: 1.7Ohm

Voltage - Supply, Single (V+):: 4V ~ 44V

Voltage - Supply, Dual (V±):: ±4V ~ 22V

Switch Time (Ton, Toff) (Max):: 200ns, 150ns

-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

DG308BDY-T1-E3 FAQ

1.How can I place an order for DG308BDY-T1-E3 through Aetrix?

Please submit a Request for Quotation (RFQ) for DG308BDY-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 DG308BDY-T1-E3 reliable?

The price and inventory of DG308BDY-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 DG308BDY-T1-E3 is usually 5 days.

3.What payment methods are accepted for DG308BDY-T1-E3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG308BDY-T1-E3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DG308BDY-T1-E3?

DG308BDY-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DG308BDY-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 DG308BDY-T1-E3?

For technical support, including DG308BDY-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG308BDY-T1-E3 requirements.

6.How does Aetrix verify that DG308BDY-T1-E3 is sourced from the original manufacturer or authorized distributors?

All DG308BDY-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 DG308BDY-T1-E3 meets industry standards.

7.What is the process for return or replacement of DG308BDY-T1-E3?

All DG308BDY-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG308BDY-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 DG308BDY-T1-E3 part is unused and in its original packaging.

Return procedure for DG308BDY-T1-E3:

1.Submit a request within 90 days.

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

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