DG411DY-E3 - Quad SPST 35Ohm CMOS Analog Switch | Vishay
MPN: DG411DY-E3 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.68 | $1.68 |
| 10 | $1.51 | $15.10 |
| 100 | $1.35 | $135.00 |
| 500 | $1.22 | $610.00 |
| 1,000 | $1.1 | $1,100.00 |
DG411DY-E3 Overview
An analog switch is a semiconductor device that routes or blocks analog signal paths under digital control, sitting within the broader taxonomy: analog switch IC -> signal switch -> interface/signal-conditioning IC -> semiconductor. Quad SPST switches like the DG411 are the workhorses of analog front-end design, replacing electromechanical relays and discrete JFET switching where board space, speed, and reliability matter.
Key features include extremely low power consumption of approximately 0.35 uW, TTL- and CMOS-compatible digital inputs, and low on-resistance matching between the four switches. The CMOS transmission-gate architecture conducts equally well in either direction, supporting bipolar analog signal swings when dual supplies are used. The -E3 suffix denotes tin/lead-free plating with RoHS compliance for modern assembly processes.
Technically, each switch is built as a CMOS transmission gate with an n-channel and p-channel MOSFET in parallel, driven by level-shifting gate control circuitry derived from the digital input. This topology keeps on-resistance relatively flat over the analog signal range and minimizes charge injection, which is critical for sample-and-hold, integrator-reset, and audio signal-routing accuracy.
Typical applications include audio and video signal switching, precision test-and-measurement signal routing, sample-and-hold circuits, and data-acquisition channel multiplexing, where its 35 ohm channel resistance and low quiescent power keep inserted errors and thermal drift small.
Designers should verify total supply voltage headroom: the DG411 family is specified for dual supplies in the region of plus/minus 15 V, and signal swings must remain within the supply rails to avoid latch-up or increased distortion.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DG411DY-E3 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
DG411DY
β Drop-Inπ Reference alternative (not in catalog)
ADG411BRZ
β Drop-Inπ Reference alternative (not in catalog)
DG412DY-E3
β Drop-Inπ Reference alternative (not in catalog)
DG411DY-E3 Maximum Ratings & Electrical Characteristics
| Product Type | Precision Monolithic Quad SPST CMOS Analog Switch |
| Number of Switches | 4 (quad) |
| Switch Configuration | SPST, 1:1 (four independent) |
| On-Resistance (max) | 35 Ohm |
| Technology | CMOS |
| Power Consumption | 0.35 uW (low power) |
| Digital Input Compatibility | TTL and CMOS compatible |
| Supply Voltage Class | 15 V / 18 V / 24 V / 28 V class (per distributor listing) |
| Package | 16-SOIC (0.154 in, 3.90 mm width) |
| Mounting Type | Surface Mount |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
DG411DY-E3 16-soic (0.154 in, 3.90 mm width) Pin Configuration Guide
Pin configuration for DG411DY-E3 (16-soic (0.154 in, 3.90 mm width) package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for DG411DY-E3.
Refer to the datasheet for full pin configuration.
Typical Applications
DG411DY-E3 is suitable for 6 applications: Audio and Video Signal Switching, Test and Measurement Signal Routing, Data Acquisition Channel Multiplexing, Sample-and-Hold and Integrator Reset, Industrial Control Signal Gating, Battery-Powered Portable Instrumentation.
Audio and Video Signal Switching
The DG411DY-E3 fits audio and video routing because its CMOS transmission-gate switches conduct equally well in either direction and add only 35 ohm of series resistance, which is negligible against typical high-impedance audio loads. In an audio selector, the switch sits between source outputs and a summing amplifier input, with digital logic pins driven directly from a microcontroller. Its approximately 0.35 uW consumption produces no measurable self-heating, so distortion and thermal drift stay low, and the quad configuration lets one SOIC-16 switch four stereo signal branches or channels in a single footprint.
Recommended
Test and Measurement Signal Routing
In bench instruments and automated test equipment, the DG411DY-E3 routes precision analog signals between front-end attenuators, buffers, and measurement cores. The 35 ohm maximum on-resistance and the family's low on-resistance matching between switches keep channel-to-channel errors small and calibratable, while TTL- and CMOS-compatible inputs let FPGA or MCU control lines switch paths directly without level translation. Placed after a high-impedance buffer, the switch contributes minimal insertion error; placing it before the buffer requires factoring the 35 ohm into gain accuracy. The quad SPST layout supports four independent break-before-style signal selections in one SOIC-16 package.
Recommended
Data Acquisition Channel Multiplexing
For multi-channel data acquisition, the DG411DY-E3 gates individual sensor outputs onto a shared amplifier or ADC input. Because each SPST switch is fully independent, four sensor channels can be combined or gated per SOIC-16, and the low 0.35 uW power means hundreds of switches can share a supply without thermal design changes. The CMOS switch passes signals bidirectionally within the supply rails, so sensor outputs must stay within the analog supply range. Designers should budget the 35 ohm on-resistance against the ADC sample capacitor charge time when switches sit directly in the sampling path, using adequate settling time or a buffer stage.
Recommended
Sample-and-Hold and Integrator Reset
The DG411DY-E3 works as the acquisition switch or reset switch in sample-and-hold and integrator circuits. Its CMOS transmission-gate construction keeps on-resistance relatively flat over the signal range, which reduces signal-dependent acquisition errors, and fast switching speeds let short aperture windows capture fast waveforms. In a reset application, the switch discharges a feedback capacitor on command; the 35 ohm path sets the reset time constant together with the capacitor value. Charge injection appears as a small pedestal at the hold node, so designers choose hold capacitor size to trade pedestal error against acquisition bandwidth per the Vishay datasheet guidance.
Recommended
Industrial Control Signal Gating
In industrial controllers, the DG411DY-E3 gates sensor signals, reference voltages, and calibration sources on PLC and process-control boards. The 28 V supply class listed by distributors gives headroom on industrial analog rails, the low power suits densely packed control boards, and the SOIC-16 surface-mount package survives reflow assembly in volume manufacturing. TTL-compatible inputs switch reliably from standard 5 V logic used across industrial control. Because signals must remain within the analog supply rails, designers scale supply choice to the largest sensor swing. The RoHS-compliant -E3 finish meets European industrial equipment requirements without process change.
Recommended
Battery-Powered Portable Instrumentation
With approximately 0.35 uW consumption, the DG411DY-E3 suits battery-powered portable meters, loggers, and hand-held instruments where every microwatt matters. The switch draws essentially zero static power in either state, so signal-path gating does not shorten battery life, unlike relay or bipolar alternatives. The small SOIC-16 body conserves board area in compact enclosures, and CMOS inputs impose negligible drive current on the controlling microcontroller GPIO. The main design consideration is ensuring control-logic levels fully swing the switch states at the chosen supply voltage, since partial logic levels near threshold can raise on-resistance or cause undefined switching.
Recommended
Recommended Products Summary
Engineering reference data for DG411DY-E3 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DG411DY | ADG411BRZ | DG412DY-E3 |
|---|---|---|---|---|
| Package | 16-SOIC (3.90 mm width) | 16-SOIC - same | 16-SOIC - same | 16-SOIC - same |
| Brand | Vishay Siliconix | Vishay Siliconix | Analog Devices | Vishay Siliconix |
| Switch Configuration | Quad SPST, 1:1 | Quad SPST, 1:1 | Quad SPST, 1:1 | Quad SPST, 1:1 |
| Plating / Compliance | Lead-free, RoHS (-E3) | Tin-lead (non-E3) | RoHS-compliant | Lead-free, RoHS (-E3) |
Key Differentiators
- Lowest on-resistance in the same footprint (vs DG412DY-E3)
- RoHS lead-free finish with immediate stock (vs DG411DY)
- Cost advantage with family continuity (vs ADG411BRZ)
Design Notes
Estimated: the DG411DY-E3's 0.35 uW static consumption means supply design is trivial, but dynamic switching current scales with control-clock frequency; at high channel-switching rates add local 100 nF decoupling from each supply pin to ground. Ensure the analog supply rails exceed the largest signal swing plus margin, since signals beyond the rails forward-bias CMOS protection structures and corrupt switching accuracy. Distributor listings place the family in the 15 V to 28 V supply class; confirm the exact range on the Vishay datasheet document 61564 for your operating condition.
Keep the analog source/drain traces away from the digital control lines to minimize capacitive feedthrough of logic edges into signal paths; a ground guard trace between control and signal routing reduces feedthrough in high-impedance applications. Place a 100 nF ceramic capacitor within 2 mm of the supply pin. The SOIC-16 footprint is standard narrow-body, so no special land-pattern work is needed, and the same footprint accepts the DG411DY, DG412DY-E3, and ADG411 alternatives listed on this page for second sourcing.
The most common DG411 pitfalls are (1) letting analog signals exceed the supply rails, which turns on protection diodes and distorts the signal, (2) driving control inputs from logic levels that do not fully cross the switching threshold at the chosen supply, leaving the switch in a partially-on state with elevated on-resistance, and (3) substituting DG412 (80 Ohm) for DG411 (35 Ohm) in precision paths without recalculating insertion error - the resistance is 2.3x higher. Verify the -E3 lead-free suffix when RoHS assembly is required; standard DG411DY carries tin-lead plating.
Compliance Information
Per distributor specification listings: Lead Free Status: Lead Free; RoHS Status: RoHS Compliant. The -E3 suffix denotes lead-free plating. REACH, halogen-free, and conflict-minerals status not stated in provided data.
