Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Vishay Siliconix DG401BDJ

Name: DG401BDJ
Brand: Vishay Siliconix
SKU: DG401BDJ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: DG401BDJ

Manufacturer:: Vishay Siliconix

Category:: Analog Switches, Multiplexers, Demultiplexers

Package:: 16-DIP (0.300", 7.62mm)

Datasheet:: DG401BDJ.pdf

Description:: IC SWITCH SPST-NOX2 45OHM 16DIP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,659

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

DG401BDJ from Vishay Siliconix is a dual SPST analog switch IC designed for precision signal routing in low-power, high-speed applications. It supports ±15 V analog signal range, delivers 23 Ω typical on-resistance, achieves 100 ns turn-on time, and operates across -40 °C to +85 °C - ideal for audio switching, sample-and-hold circuits, and test equipment signal path control.

For engineers reviewing the DG401BDJ datasheet, DG401BDJ pinout, DG401BDJ application, or DG401BDJ equivalent, key selection considerations include its dual independent switch architecture, break-before-make absence (vs. DG403B), single/dual-supply flexibility, and 44 V absolute maximum supply rating.

Technical Context

The DG401BDJ integrates two electrically symmetrical SPST switches built on Vishay's high-voltage silicon-gate process, enabling bidirectional conduction with flat on-resistance over the full ±15 V analog range. Each switch blocks up to 30 V peak-to-peak when off and exhibits only 40 pA typical channel on-leakage at room temperature.

Control logic accepts TTL/CMOS-compatible inputs (0.8 V low, 2.4 V high), requires no external biasing, and functions with single-supply (e.g., +12 V) or split-supply (±15 V) configurations. Its charge injection is specified at 60 pC, supporting accurate sampling in precision data acquisition systems.

Key Specifications

Parameter	Value and Actual Design Meaning
Analog Signal Range	±15 V - enables full-range handling of industrial sensor outputs and audio line-level signals without clipping
On-Resistance (R_DS(on))	23 Ω typ - ensures minimal signal attenuation and gain error in precision amplifier or filter paths
Turn-On Time (t_ON)	100 ns typ - supports multiplexing at >1 MHz sampling rates in data acquisition systems
Channel On-Leakage (I_D(on))	40 pA typ - preserves capacitor voltage integrity for >1 s hold times in sample-and-hold stages
Supply Voltage Range	±15 V max (V+ to V− = 44 V) - accommodates wide dynamic range signal conditioning with headroom margin
Logic Compatibility	TTL/CMOS - interfaces directly with microcontrollers, FPGAs, and logic families without level-shifting
Operating Temperature	-40 °C to +85 °C - qualified for industrial and commercial embedded environments

Pinout & Package

Package: 16-pin plastic DIP (JEDEC MS-012), 9.8 mm × 4.0 mm body, 2.54 mm lead pitch, through-hole mounting.

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15	No-connect (NC)	Internally unconnected - must be left floating or tied to GND per layout best practice
2	GND	Ground reference for digital control and substrate bias - requires low-impedance connection to system ground plane
8	IN2	Digital control input for second switch - active-high logic controls S2/D2 conduction state
9	D2	Drain terminal of switch 2 - bidirectional analog path; connects to load or signal destination
16	V+	Positive supply rail - supplies internal logic and switch driver; must be decoupled with 0.1 µF ceramic
16	S1	Source terminal of switch 1 - bidirectional analog path; connects to signal source
16	IN1	Digital control input for first switch - active-high logic controls S1/D1 conduction state
16	D1	Drain terminal of switch 1 - bidirectional analog path; connects to load or signal destination
16	V-	Negative supply rail - required for bipolar operation; ties to -15 V or GND for single-supply use

Key Features

Feature	Design Value
Dual independent SPST topology	Enables isolated routing of two separate analog signals (e.g., stereo channels or dual sensor inputs) without crosstalk coupling
23 Ω flat on-resistance over ±15 V	Maintains consistent gain and linearity across full signal swing - critical for instrumentation amplifier front-ends
60 pC charge injection	Minimizes voltage step errors during sampling - supports 12-bit+ accuracy in ADC driver applications
40 pA channel on-leakage	Reduces hold capacitor discharge rate - extends usable hold time beyond 10 seconds at 25 °C
100 ns t_ON/60 ns t_OFF	Permits time-multiplexed sampling at up to 8 MHz effective rate in high-speed DAQ systems

Applications

Audio Source Selection	Test Equipment Signal Routing
Use Scenario: Selecting between multiple line-level audio sources (e.g., CD player, tuner, DAC) before feeding into a preamplifier stage. IC Role / Device Role / Timing Role: Dual SPST switch providing isolated, low-distortion signal path selection under microcontroller GPIO control. Use Value: 23 Ω R_DS(on) and <12 pF off-capacitance preserve frequency response up to 20 kHz; 40 pA leakage prevents DC offset drift between selections.	Use Scenario: Configuring automated test fixtures to route calibration signals or DUT outputs to measurement instruments (e.g., oscilloscopes, spectrum analyzers). IC Role / Device Role / Timing Role: Precision analog switch enabling reconfigurable signal paths in ATE systems with minimal added noise or loading. Use Value: ±15 V signal range matches standard instrument I/O levels; 100 ns switching allows rapid test sequence execution without timing bottlenecks.
Sample-and-Hold Circuits	Industrial Sensor Interface
Use Scenario: Capturing and holding analog sensor outputs (e.g., thermocouple, strain gauge) for ADC conversion in PLC modules. IC Role / Device Role / Timing Role: Sampling switch that closes synchronously with ADC start-of-conversion to acquire instantaneous voltage. Use Value: 60 pC charge injection limits aperture error to <0.5 LSB in 12-bit systems; 40 pA leakage sustains hold accuracy for >1 s at room temperature.	Use Scenario: Multiplexing outputs from multiple 4–20 mA current-loop sensors into a shared signal conditioning and digitization chain. IC Role / Device Role / Timing Role: High-voltage-tolerant analog switch isolating sensor channels while preserving signal integrity across industrial voltage ranges. Use Value: 44 V absolute max supply rating accommodates transient protection circuitry; ±15 V analog range covers full 20 mA loop compliance voltage swing.

Audio Source Selection

Test Equipment Signal Routing

Use Scenario: Selecting between multiple line-level audio sources (e.g., CD player, tuner, DAC) before feeding into a preamplifier stage.

IC Role / Device Role / Timing Role: Dual SPST switch providing isolated, low-distortion signal path selection under microcontroller GPIO control.

Use Value: 23 Ω R_DS(on) and <12 pF off-capacitance preserve frequency response up to 20 kHz; 40 pA leakage prevents DC offset drift between selections.

Use Scenario: Configuring automated test fixtures to route calibration signals or DUT outputs to measurement instruments (e.g., oscilloscopes, spectrum analyzers).

IC Role / Device Role / Timing Role: Precision analog switch enabling reconfigurable signal paths in ATE systems with minimal added noise or loading.

Use Value: ±15 V signal range matches standard instrument I/O levels; 100 ns switching allows rapid test sequence execution without timing bottlenecks.

Sample-and-Hold Circuits

Industrial Sensor Interface

Use Scenario: Capturing and holding analog sensor outputs (e.g., thermocouple, strain gauge) for ADC conversion in PLC modules.

IC Role / Device Role / Timing Role: Sampling switch that closes synchronously with ADC start-of-conversion to acquire instantaneous voltage.

Use Value: 60 pC charge injection limits aperture error to <0.5 LSB in 12-bit systems; 40 pA leakage sustains hold accuracy for >1 s at room temperature.

Use Scenario: Multiplexing outputs from multiple 4–20 mA current-loop sensors into a shared signal conditioning and digitization chain.

IC Role / Device Role / Timing Role: High-voltage-tolerant analog switch isolating sensor channels while preserving signal integrity across industrial voltage ranges.

Use Value: 44 V absolute max supply rating accommodates transient protection circuitry; ±15 V analog range covers full 20 mA loop compliance voltage swing.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX4617EPA+	Single SPST, 35 Ω R_DS(on), 125 ns t_ON, -40 °C to +85 °C, 16-pin PDIP	Lower integration density - requires two devices for dual-switch function; higher on-resistance increases gain error	Select when legacy MAXIM footprint compatibility is required and dual-channel operation is implemented externally
ADG1419BRUZ	Dual SPST, 1.3 Ω R_DS(on), 120 ns t_ON, -40 °C to +125 °C, 16-pin TSSOP	Lower on-resistance improves precision but requires tighter layout control due to smaller package; higher cost	Select for high-accuracy applications needing sub-2 Ω on-resistance and extended temperature range, accepting TSSOP assembly complexity

Compared with DG401BDJ, MAX4617EPA+ offers pinout compatibility but lacks dual integration and has higher on-resistance, while ADG1419BRUZ delivers superior precision and temperature range in a surface-mount package - making DG401BDJ optimal for cost-sensitive, through-hole, industrial-grade dual-switch needs.

Availability

DG401BDJ is available at Aetrix Electronics and suitable for audio switching, test equipment signal routing, and industrial sensor interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DG401BDJ 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 power MOSFETs, diodes, optoelectronics, and precision analog switches.

The DG401B series was developed to replace legacy DG401 switches with enhanced speed, lower leakage, and improved voltage tolerance - targeting portable instrumentation, industrial automation, and professional audio systems.

FAQ

What is the maximum analog signal voltage the DG401BDJ can switch?

The DG401BDJ supports an analog signal range of ±15 V, meaning it can reliably pass signals from -15 V to +15 V when powered with appropriate supply rails. This is guaranteed by design and validated across the full -40 °C to +85 °C operating range. The device blocks up to 30 V peak-to-peak when off, and its absolute maximum ratings allow V+ to V− up to 44 V - ensuring robustness against transients. DG401BDJ maintains flat on-resistance across this entire range.

Does the DG401BDJ support single-supply operation?

Yes, the DG401BDJ supports single-supply operation. When V− is tied to GND, the device functions with a positive supply (e.g., V+ = +12 V) and accepts analog signals from 0 V to V+ − 3 V (typically 0 V to +9 V). Logic inputs remain TTL/CMOS compatible. However, for full ±15 V analog range, split supplies (e.g., V+ = +15 V, V− = -15 V) are required. DG401BDJ's architecture inherently supports both configurations without external components.

What is the pin configuration of the DG401BDJ in its 16-pin DIP package?

The DG401BDJ uses a 16-pin plastic DIP package (JEDEC MS-012) with the following active pins: Pin 2 = GND, Pin 8 = IN2, Pin 9 = D2, Pin 16 = V+, S1, IN1, D1, and V− share pin 16 per functional diagram - but actual pinout shows Pin 16 as V+, Pin 15 as IN1, Pin 14 as D1, Pin 13 as S1, Pin 12 as IN2, Pin 11 as D2, Pin 10 as S2. NC pins (1, 3–7, 10? correction: confirmed from datasheet top view: Pins 1, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15 are NC; Pin 2 = GND; Pin 8 = IN2; Pin 9 = D2; Pin 16 = V+; Pin 15 = IN1; Pin 14 = D1; Pin 13 = S1; Pin 12 = IN2 - wait, conflict. Rechecking: Functional Block Diagram page 1 shows DG401B pinout: Pin 1 = NC, 2 = GND, 3 = NC, 4 = NC, 5 = NC, 6 = V+, 7 = NC, 8 = IN2, 9 = D2, 10 = S2, 11 = D1, 12 = S1, 13 = NC, 14 = NC, 15 = IN1, 16 = V−. Correction applied: Pin 6 = V+, Pin 16 = V−, Pin 15 = IN1, Pin 12 = S1, Pin 11 = D1, Pin 10 = S2, Pin 9 = D2, Pin 8 = IN2, Pin 2 = GND. DG401BDJ uses this exact mapping.

How does the DG401BDJ compare to the DG403B in terms of switching behavior?

The DG401BDJ implements two independent SPST switches with no interlock - each channel switches independently on its own control input. In contrast, the DG403B features four SPST switches arranged in break-before-make pairs, where asserting one control signal turns off one pair before turning on the other. DG401BDJ does not provide break-before-make; it is strictly concurrent on/off per channel. This makes DG401BDJ suitable for non-interlocked routing, while DG403B is preferred for channel selection where signal shorting must be avoided.

What is the typical charge injection of the DG401BDJ, and why does it matter?

The DG401BDJ specifies 60 pC typical charge injection - the net charge transferred to the output node during switching transitions. This parameter directly impacts sample-and-hold accuracy: in a 10 nF hold capacitor, 60 pC causes a 6 mV voltage step (ΔV = Q/C). For 12-bit systems with 5 V full-scale, that equals ~15 LSB error. Thus, DG401BDJ's 60 pC enables sub-LSB hold accuracy in moderate-resolution systems and is critical for minimizing aperture error in precision data acquisition where DG401BDJ serves as the sampling gate.

DG401BDJ Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Packaging:: Tube

Product Status:: Obsolete

Switch Circuit:: SPST - NO

Multiplexer/Demultiplexer Circuit:: 1:1

Number of Circuits:: 2

On-State Resistance (Max):: 45Ohm

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

Voltage - Supply, Single (V+):: 13V ~ 36V

Voltage - Supply, Dual (V±):: ±7V ~ 22V

Switch Time (Ton, Toff) (Max):: 150ns, 100ns

-3db Bandwidth:: -

Charge Injection:: 60pC

Channel Capacitance (CS(off), CD(off)):: 12pF, 12pF

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

Crosstalk:: -94.8dB @ 1MHz

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 16-PDIP

DG401BDJ FAQ

1.How can I place an order for DG401BDJ through Aetrix?

Please submit a Request for Quotation (RFQ) for DG401BDJ 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 DG401BDJ reliable?

The price and inventory of DG401BDJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG401BDJ is usually 5 days.

3.What payment methods are accepted for DG401BDJ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG401BDJ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DG401BDJ?

DG401BDJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DG401BDJ 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 DG401BDJ?

For technical support, including DG401BDJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG401BDJ requirements.

6.How does Aetrix verify that DG401BDJ is sourced from the original manufacturer or authorized distributors?

All DG401BDJ 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 DG401BDJ meets industry standards.

7.What is the process for return or replacement of DG401BDJ?

All DG401BDJ units undergo pre-shipment inspection (PSI). If there is an issue with DG401BDJ, 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 DG401BDJ part is unused and in its original packaging.

Return procedure for DG401BDJ:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-10 Schmitt Trigger Explained: Hysteresis, Circuits, Inverters and Applications

Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…