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المنتجات (39,000+)

DG211DJ+ - Quad SPST CMOS Analog Switch | Analog Devices
DG211DJ+

DG211DJ+ - Quad SPST CMOS Analog Switch | Analog Devices

Analog Devices DG211DJ+ is a four-circuit, normally closed, single-pole single-throw CMOS analog switch with an on-resistance of 175 ohm in a 16-pin PDIP package. The manufacturer identifies the DG211 family as a production device and specifies operation from ±4.5 V to ±18 V supplies. Its four integrated switches provide break-before-make operation and are designed to avoid latch-up when supply rails are disconnected while signals remain connected. An analog switch is an electronically controlled semiconductor device that routes signals between circuit nodes without continuously conducting them. The DG211 belongs to the analog-switch and multiplexer hierarchy, where CMOS implementations combine low signal distortion with TTL-compatible control inputs. Each DG211 switch is normally closed, meaning its default connection remains active until the corresponding control input changes state. This behavior is useful for signal routing, test-point isolation, fallback paths, and analog measurement systems. The DG211’s four SPST channels provide independent control of four signal paths. Its 175-ohm on-resistance is the principal signal-path parameter identified for the device, while the ±4.5 V to ±18 V supply range allows operation with positive and negative analog rails. The manufacturer also specifies break-before-make behavior, helping prevent two switched paths from momentarily connecting together during control transitions. The DG211DJ+ ordering code places this quad switch in a 16-pin PDIP package. CMOS construction gives the DG211 low static power characteristics relative to many mechanical or bipolar relay alternatives. Because the device uses MOSFET-based switching elements, its on-state behavior changes with signal amplitude and supply configuration. Designers should therefore evaluate resistance, off leakage, charge injection, capacitance, and logic thresholds against the particular source and load impedance. The fast transition and low on-resistance make the device practical for precision test systems, data-acquisition front ends, instrumentation, and controlled analog paths. Typical uses include switching sensor outputs into measurement amplifiers, isolating channels in automated test equipment, selecting signal sources in laboratory instruments, and preserving analog connections during power-up or fault conditions. The normally closed topology is especially valuable when a default connection must remain intact if control logic is unpowered or temporarily unavailable. The 16-pin PDIP package is appropriate for through-hole assembly, prototypes, educational systems, and designs where a socketed DIP implementation simplifies maintenance. Designers should preserve the recommended supply and signal limits, place bypass capacitance close to the supply pins, and use pull resistors where control inputs may float during reset. The break-before-make and latch-up characteristics improve transition reliability, but external logic still must not exceed the input ratings. Because analog-switch performance depends on source impedance, load impedance, frequency, and supply voltage, prototype measurements should verify bandwidth and distortion before high-volume deployment. This product record combines the manufacturer’s production status, switch topology, resistance, supply range, package information, ordering data, and drop-in comparison guidance with practical PCB, signal-integrity, and selection considerations. It is intended to help engineers identify whether the DG211DJ+ matches the required electrical behavior, normally closed routing, through-hole footprint, and control architecture before placing the part into a production design.

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DG212CJ+ - Quad SPST CMOS Analog Switch | Intersil
DG212CJ+

DG212CJ+ - Quad SPST CMOS Analog Switch | Intersil

The Intersil Corporation DG212CJ+ is a low-cost CMOS monolithic quad SPST analog switch with four normally open, 1:1 switching channels, 175 ohm on resistance, inverted control inputs, and a 16-pin PDIP package. According to the manufacturer datasheet, it supports dual supply operation from ±4.5 V to ±18 V and is designed for communications, instrumentation, process-control, sample-and-hold, disk-drive, test-equipment, and computer-peripheral applications. An analog switch is an integrated interface device that routes analog signals between external circuit nodes under digital control. The DG212CJ+ belongs to the CMOS analog-switch hierarchy, where each SPST channel provides one signal path with a normally open configuration. Its inverted control inputs allow the device to be selected by active-high or active-low system logic, while four independent switches can share common supply rails within one package. Key features include a 175 ohm maximum on resistance, a maximum turn-on time of 1000 ns, and a maximum turn-off time of 500 ns. The device is specified for a wide dual-supply range of ±4.5 V to ±18 V. According to the Analog Devices DG212 product page, the DG202 and DG212 family is guaranteed not to latch up when the power supplies are disconnected while input signals remain connected, improving recovery behavior in systems where rails can be removed before external circuitry. The DG212 family differs from the DG201 and DG211 families through its inverted control inputs. Within the DG202 family, the DG212 provides four normally open SPST channels, making it appropriate for signal isolation, test-point routing, programmable front ends, and general-purpose switching rather than fixed on-state multiplexing. Its CMOS implementation and simple logic interface suit compact analog and digital control systems where channel isolation and predictable switching timing are important. Typical uses include communication-system signal routing, process-control interfaces, disk-drive electronics, test equipment, sample-and-hold circuits, and computer peripherals. Engineers should pay attention to the inverted logic polarity and confirm that a low control level closes each normally open channel. Because this is a 16-pin PDIP device rather than a surface-mount package, it is most appropriate for through-hole legacy, industrial, instrument, and prototype designs where DIP availability is more valuable than compact placement. For reliable operation, use the pin-description table and recommended operating conditions in the manufacturer datasheet when assigning control and analog pins. Confirm signal levels against the applicable supply configuration and avoid exceeding ±18 V. This page combines manufacturer specifications, sourcing context, pin-usage guidance, and verified drop-in replacement information to support practical selection and board-level implementation.

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DG212CY+ - Quad SPST 175Ω Analog Switch | Analog Devices
DG212CY+

DG212CY+ - Quad SPST 175Ω Analog Switch | Analog Devices

The Analog Devices DG212CY+ is a quad SPST CMOS analog switch with four normally open channels, a maximum on-resistance of 175 Ω, and a 16-lead SOIC package. It supports continuous operation from ±4.5 V to ±18 V. Each independent switch provides 1:1 signal routing for general-purpose analog and digital signal switching. An analog switch is an integrated semiconductor device that connects or disconnects signal paths under logic control. The DG212CY+ belongs to the analog switch hierarchy, where it complements multiplexers, demultiplexers, and matrix switchers. Its four SPST channels can isolate instrumentation inputs, route test signals, select external circuits, or provide break-before-make functions when driven by suitable control logic. The DG212 family uses low-cost monolithic CMOS circuitry and normally open contacts. Four independently controlled switches reduce external component count in systems requiring several signal connections. The maximum specified on-resistance is 175 Ω, making the device suitable for moderate-impedance signals rather than low-ohm precision measurement paths. Its 16-lead SOIC format supports conventional surface-mount assembly. The DG212CY+ can operate continuously with positive and negative supply rails from ±4.5 V to ±18 V. Analog Devices specifies latch-up-free behavior when the supply rails are disconnected while input signals remain connected. This feature helps avoid unintended current paths during power-down conditions. Control polarity distinguishes the DG212 from related DG211 devices, so control-logic compatibility must be checked before substitution. Typical uses include communications equipment, instrumentation, process-control systems, computer peripherals, automated test equipment, and signal-isolation circuits. The device is especially useful when multiple low-bandwidth or moderate-impedance paths must be selected independently. Its four channels can route sensor lines, select measurement sources, or disconnect external equipment from a shared bus. Layout should keep switched traces short and provide a low-impedance ground reference around the device. Input and output pins must remain within the absolute maximum ratings of the manufacturer datasheet, and unused control inputs should be driven to a defined logic state. Verify signal amplitude, supply polarity, control levels, and acceptable switching transients before finalizing the analog path. This product page combines the manufacturer’s switch description with practical substitution, comparison, and PCB-design guidance. It focuses on the electrical limits, control compatibility, package footprint, and application constraints that determine whether DG212CY+ is appropriate for a new design or an existing instrumentation and control board.

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DG309CJ+ - Quad SPST Normally Closed Analog Switch, 60 Ohm | Maxim Integrated
DG309CJ+

DG309CJ+ - Quad SPST Normally Closed Analog Switch, 60 Ohm | Maxim Integrated

The Maxim Integrated DG309CJ+ is a quad single-pole single-throw (SPST) CMOS analog switch with normally closed (SPST, NC) contacts, 60 ohm typical on-resistance, and approximately 130 ns switching speed, packaged in a 16-pin PDIP (0.300 inch, 7.62 mm) plastic DIP. It is the normally closed companion to the DG308A, which is normally open. An analog switch is a voltage-controlled semiconductor device that routes analog signals between circuit nodes using MOSFET pass elements rather than mechanical contacts. In the taxonomy of electronic components, a DG309CJ+ belongs to the analog switch family, which sits under interface ICs, alongside multiplexers, demultiplexers, and matrix switchers. Because it uses CMOS pass transistors instead of relay contacts, it offers near-solid-state reliability, microsecond-to-nanosecond switching, and negligible signal degradation when the supply rails are respected. Key features include a low 60 ohm on-resistance across the analog range, turn-on time below 120 ns, turn-off time below 90 ns, and very low power dissipation of about 30 nW per closed channel. Inputs are CMOS logic compatible, and the switch supports full rail-to-rail analog signal range operation. Supply options include split rails of plus/minus 5 V to plus/minus 20 V, or a single positive supply of +5 V to +30 V, with a 15 V analog input range. Internally the DG309CJ+ is a monolithic CMOS design. Each normally closed element places a pass transistor in the conducting path so the source and drain are bridged when the control input is low, which is why the part behaves as a shorting analog switch rather than a series isolator. That architecture makes it useful as a signal-shorting or bypass element in sample-and-hold circuits, guidance and control systems, communication systems, and test equipment, where a default connection must remain present when logic is unpowered or de-asserted. Typical applications include heads-up display and military radio signal routing, PBX and PABX switching networks, guidance and control system multiplexing, sample-and-hold front ends, and general-purpose bench test switching. Because the closed state is the default, it is especially suitable for fail-safe signal paths where an open circuit would be more damaging than a shorted one. When designing around the DG309CJ+, always verify the logic polarity of the control input for each channel and confirm that the maximum analog input voltage is not exceeded during transients. Because the package is a through-hole PDIP-16 rather than a surface-mount part, it is also easier to prototype and hand-solder, but requires plated through-holes and more board area than an equivalent surface-mount switch. This page consolidates distributor pricing as of 2026-10-30, verified drop-in alternatives from Maxim, Vishay and Harris, and practical design notes that go beyond the raw parameter table in the manufacturer data sheet.

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DG309CY+ - Quad SPST 100 Ohm Analog Switch | Analog Devices
DG309CY+

DG309CY+ - Quad SPST 100 Ohm Analog Switch | Analog Devices

Analog Devices DG309CY+ is a quad, single-pole, single-throw CMOS analog switch with normally closed contacts, 100 ohm on-resistance, and four independent 1:1 signal paths in a 16-pin SOIC package. The device is intended for routing low-voltage analog and digital signals where the default connected state must remain closed when no switching command is applied. An analog switch is an interface IC that connects or isolates circuit nodes under digital control. It sits between signal sources and destination circuitry within a larger interface or signal-routing architecture. Unlike a mechanical relay, the DG309CY+ uses CMOS electronics to provide compact, fast, low-power switching, making it suitable for test equipment, data acquisition, instrumentation, and embedded control systems. The DG309CY+ provides four analog switch channels, a 1:1 signal configuration, and 100 ohm on-resistance. Its normally closed operation allows a default signal path to remain connected before the control input is asserted. The 16-pin SOIC package is a surface-mount package that supports conventional PCB assembly, while the exposed package dimensions are not established by the listed product information. The DG309CY+ is designed for single-pole, single-throw signal routing, not for power switching or high-voltage isolation. Its practical performance depends on the applied signal range, control logic levels, switch charge injection, off leakage, and the impedance of the connected circuit. Those electrical characteristics must be taken from the manufacturer datasheet before finalizing signal-integrity or timing budgets. Typical uses include analog test-point selection, sensor signal routing, sample-and-hold interfacing, communication path selection, and control of multiple peripheral inputs. A normally closed switch is especially useful where loss of control power or a defined inactive state should preserve the original connection rather than isolate the signal path. For PCB implementation, place the device close to the switched nodes to minimize trace resistance and coupling between adjacent channels. Confirm control-pin logic and signal limits against the manufacturer datasheet, and check continuity behavior during power-up. Do not assume that a low on-resistance makes the switch suitable for high-current loads. This product record combines the exact catalog identity, package, switch configuration, and resistance data with practical guidance for routing, signal integrity, lifecycle review, sourcing, and drop-in replacement evaluation. It also distinguishes the verified device facts from specifications that must be checked in the manufacturer datasheet.

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DG309DJ - Quad SPST Analog Switch | Maxim Integrated
DG309DJ

DG309DJ - Quad SPST Analog Switch | Maxim Integrated

Maxim Integrated DG309DJ is a four-circuit, 1:1 CMOS analog switch with a maximum on-resistance of 100 ohm, supplied in a 16-pin PDIP package. Each circuit provides one normally closed single-pole single-throw path, allowing the connected signal to pass when the control input is inactive and disconnecting it when the switch is actuated. An analog switch is an electronic routing component that connects or isolates signal paths under digital control. Its broader hierarchy is CMOS analog switch, analog multiplexer or demultiplexer, interface IC, and semiconductor. Unlike a mechanical relay, the DG309DJ changes the connected state electronically and is intended for signal-routing functions in communication, guidance, control, display, radio, sample-and-hold, and test-equipment systems. The four independent circuits provide an economical way to route multiple analog signals in one package. The 100 ohm maximum on-resistance is suitable for applications where the source and load impedance do not demand exceptionally low insertion resistance. Fast switching behavior helps minimize transition time when control signals change. CMOS-compatible control inputs simplify interfacing with digital logic, while the package's through-hole PDIP-16 format supports conventional PCB assembly and prototype rework. The DG309 family supports split supplies from ±5 V to ±20 V and a single positive supply from +5 V to +30 V, according to the manufacturer product page. This operating range allows the device to be used in both dual-rail analog circuits and higher-voltage single-rail systems. Exact device ratings, switch logic levels, leakage currents, switching times, and temperature limits should be checked against the manufacturer datasheet before final circuit design. Typical uses include signal multiplexing in communication equipment, channel selection in guidance and control systems, source selection for heads-up displays, routing in military radios, sample-and-hold circuits, and general-purpose test equipment. The normally closed state can also support signal bypassing, redundant routing, or fail-safe paths where continuity is preferred when control power is absent. Designers should account for the switch's on-resistance, off leakage, charge injection, control-logic levels, and supply voltage when calculating signal integrity. Keep analog traces short, connect decoupling capacitors close to the supply pins, and verify that the control signals meet the device's CMOS-compatible input thresholds. These practices reduce loading, switching transients, and unintended coupling between routed channels. This product page combines the DG309DJ architecture, supply-range information, package details, application guidance, and replacement considerations into a design-focused guide. It helps engineers identify the correct normally closed function, verify the 16-pin footprint, and distinguish it from normally open, multiplexer, and different-package alternatives before beginning PCB or firmware work.

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DG309DY+ - 4-Channel SPST Analog Switch | Analog Devices
DG309DY+

DG309DY+ - 4-Channel SPST Analog Switch | Analog Devices

Analog Devices DG309DY+ is a four-circuit, normally closed, single-pole-single-throw CMOS analog switch with 100 Ω on-resistance, 1:1 signal routing, and a 16-pin SOIC package. It operates from 5 V to 30 V or from ±5 V to ±20 V, making it suitable for bipolar instrumentation and industrial control systems. The manufacturer reports turn-on time below 120 ns, turn-off time below 90 ns, and channel on-resistance of 60 Ω. An analog switch is an integrated semiconductor device that routes signals between an input terminal and an output terminal under digital control. The DG309DY+ belongs to the CMOS analog-switch hierarchy, which includes SPST, SPDT, and multiplexed switching products. Its four normally closed channels remain connected when the control input is inactive and disconnect when commanded, making the device useful for signal isolation, test-point routing, and channel selection. Key features include four independent SPST channels, normally closed operation, low on-resistance, fast switching transitions, CMOS-compatible control inputs, and operation across both positive supply and dual-supply rails. The 100 Ω resistance shown in the distributor catalog and the 60 Ω channel resistance reported on the Analog Devices product page describe different aspects of the published device performance; consult the manufacturer datasheet for the exact test conditions and applicable limits before finalizing a high-impedance design. The DG309DY+ uses CMOS construction to reduce input current and provide TTL-compatible control operation. Four channels in one package reduce board area compared with four discrete mechanical or relay-based switches. Because each switch has a finite on-resistance and off leakage, the selected switch must be checked against source impedance, capacitance, signal level, and the allowable insertion loss of the application. Typical uses include battery-powered test equipment, data-acquisition systems, sample-and-hold isolation, analog signal multiplexing, industrial controllers, and communication equipment. Positive-only operation at 5 V to 30 V is useful when only one supply rail is available, while ±5 V to ±20 V operation supports bipolar signals that must pass through the switch without shifting to a single-ended reference domain. For layout, keep input and output traces short, place the device close to the signal source, and avoid long unprotected routes adjacent to fast-switching nodes. Confirm the control-logic levels, supply sequencing, and absolute maximum ratings in the manufacturer datasheet before applying power. This page organizes the DG309DY+ specifications, verified package details, application guidance, pin-compatible alternatives, and practical comparison points into one engineering-focused reference for analog-signal routing designs.

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DG381CJ - CMOS Analog Switch IC | Analog Devices
DG381CJ

DG381CJ - CMOS Analog Switch IC | Analog Devices

Analog Devices DG381CJ is a general-purpose CMOS analog switch IC listed in stock at LCSC, with a verified starting price of $1.1653 per unit. The device belongs to the analog-switch category, where CMOS-controlled switches route signals between circuit nodes without continuously conducting current. The verified source identifies the DG381 family as general-purpose CMOS analog switches, while the DG381CJ ordering code is associated with a DIP-14 package. Its detailed supply-voltage rating, channel configuration, on-resistance, leakage current, switching time, and logic thresholds were not included in the supplied data and must be confirmed in the manufacturer datasheet before design release. A CMOS analog switch is a semiconductor interface device that uses electronic control signals to connect or disconnect an analog signal path. The broader hierarchy is analog switch → analog multiplexer or demultiplexer → interface IC → semiconductor. General-purpose versions are selected when a compact board needs programmable signal routing for instrumentation, test, communications, industrial control, or data-acquisition systems. Unlike a mechanical relay, an analog switch changes state electronically; unlike a continuous analog amplifier, it primarily controls signal-path connectivity. The most important verified attributes are the in-stock listing, the $1.1653 starting unit price, the general-purpose CMOS technology classification, and the DIP-14 package associated with the ordering code. These attributes support cost-sensitive prototype and production sourcing, but they do not establish electrical interchangeability by themselves. Before using DG381CJ in a precision measurement path, engineers should verify channel count, normally-open or normally-closed behavior, signal polarity, bandwidth, insertion loss, charge injection, off-state isolation, and maximum analog signal excursion. The DG381 family uses integrated MOS transistors as analog switching elements controlled by CMOS-compatible logic. In a typical circuit, the control pins receive host-generated enable signals while the switched terminals carry analog or digital signals. Because a physical switch has finite resistance, capacitance, leakage, and switching transients, layout and control timing can affect measurement accuracy. The exact architecture, truth table, logic thresholds, and timing values must be taken from the DG381 manufacturer datasheet rather than inferred solely from the distributor listings. Potential uses include automated test equipment, data-acquisition front ends, industrial sensor interfaces, communication routing, laboratory instrumentation, and embedded control systems where multiple signal paths must be selected under software control. A suitable design must keep every signal and control voltage inside the device's documented limits. It should also provide clean supply decoupling and keep high-impedance routing paths short enough to limit capacitive loading and pickup. The primary design consideration is verification of the exact DG381CJ electrical table before schematic sign-off. Cross-reference search results describe DG381ACJ+ and DG300ACJ+ as complete replacements with consistent terminals and packages, but the supplied excerpts do not expose their individual voltage, resistance, timing, or leakage ratings. Engineers should therefore treat those parts as candidate drop-ins and compare every operating limit and timing parameter against the authoritative datasheet. This page consolidates the verified stock and price evidence, candidate pin-compatible replacements, package information, and practical validation guidance into one engineering-focused resource. It also distinguishes confirmed facts from unavailable specifications so procurement and design teams can make a documented decision rather than relying on an incomplete distributor summary.

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DG401CJ+ - Dual 45 Ohm SPST Analog Switch | Analog Devices
DG401CJ+

DG401CJ+ - Dual 45 Ohm SPST Analog Switch | Analog Devices

The Analog Devices DG401CJ+ is an improved dual high-speed analog switch with two independent SPST (normally open) channels, a 45 Ω maximum on-resistance rating, and a 16-pin PDIP package. It is designed for signal-routing applications that require low distortion, fast operation, and low charge injection. An analog switch is an integrated semiconductor device that routes a signal between circuit nodes under logic control. The DG401CJ+ belongs to the analog-switch and multiplexer category, where it sits above discrete MOSFET switches and below more complex multiplexing or switching systems. Each of its two channels can connect or disconnect one signal path, making the device suitable for sample-and-hold systems, test equipment, audio routing, and data-acquisition front ends. Key electrical characteristics include a 45 Ω maximum on resistance and a 20 Ω typical value in the redesigned DG401 series. The manufacturer also specifies guaranteed on-resistance matching of 2 Ω maximum between switches and on-resistance flatness of 3 Ω maximum across the signal range. Charge injection is limited to 15 pC maximum, helping reduce switching glitches in precision measurement systems. The DG401 series uses a CMOS-style analog-switch architecture that operates equally well in either signal direction. Two separately controlled switches provide independent routing for dual-channel or differential systems. The 75 ns switching-time figure published for the DG401 series supports high-speed sampling and measurement applications where the switch must settle rapidly after a control transition. Typical uses include automated test equipment, sample-and-hold circuits, audio and video signal routing, analog measurement front ends, and instrumentation requiring two independently switched paths. The 16-pin PDIP package is suitable for through-hole prototyping, legacy industrial boards, and applications where a socketed or manually assembled package is preferred over a surface-mount option. When designing around the DG401CJ+, treat the 45 Ω on resistance as part of the signal-path impedance budget and keep control-edge layout short to limit capacitive coupling. Because the device is a normally open switch, the signal path is disconnected until the corresponding logic input is asserted. Confirm the control polarity and timing against the manufacturer pin-description table before assigning PCB nets.

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DG401DJ+ - Dual 45Ω High-Speed SPST Switch | Analog Devices
DG401DJ+

DG401DJ+ - Dual 45Ω High-Speed SPST Switch | Analog Devices

The Analog Devices DG401DJ+ is a dual, high-speed, normally open SPST CMOS analog switch with two independently controlled circuits, an on-resistance of 45 Ω, and a 16-pin PDIP package. It combines TTL- and CMOS-compatible control inputs with low charge injection for applications requiring accurate signal-path switching. An analog switch is an interface IC that connects or isolates an analog signal without amplifying its voltage. The DG401 family belongs to the broader switch hierarchy that includes analog switches, multiplexers, and digital multiplexers. Its CMOS implementation provides low power consumption, while the high-speed switching characteristics make it useful in test equipment, sample-and-hold circuits, data acquisition systems, and precision signal routing. Key features include two SPST, normally open switch circuits, a 1:1 signal configuration, on-resistance below 45 Ω, turn-on time below 150 ns, and a maximum supply rating of 44 V. The control inputs accept TTL-compatible or CMOS-compatible logic. Low charge injection reduces the unwanted voltage pulse that can disturb a sampled signal when the switch changes state. The switch supports analog signals spanning up to 15 V while operating from a single supply. Its low on-resistance minimizes insertion loss and voltage drop in signal paths, while low leakage helps preserve the output when a channel is disconnected. The internal architecture is designed for low-power operation, which supports portable instrumentation and battery-powered test systems. Typical uses include high-speed signal routing, multiplexed measurement systems, sample-and-hold circuits, industrial control interfaces, and laboratory or communication equipment. The dual independent configuration allows two separate signals to be controlled with one device, reducing component count when board space is constrained. PCB design should keep analog traces short and provide a ground return close to the device. Control inputs must remain within their rated logic levels, and unused control or signal pins should be connected according to the manufacturer datasheet. Review voltage limits carefully because the 44 V maximum supply rating does not imply that all 15 V analog signals are safe under every operating condition. This page combines the manufacturer's core switch characteristics, package and electrical details, practical routing guidance, application fit, and a structured comparison with qualified same-footprint alternatives to support faster component selection.

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DG401DY+ - Dual 45Ω High-Speed SPST Switch | Analog Devices
DG401DY+

DG401DY+ - Dual 45Ω High-Speed SPST Switch | Analog Devices

The Analog Devices DG401DY+ is a production dual, high-speed analog switch IC with two 1:1 SPST normally-open channels, 45 Ω maximum on resistance, and a 16-pin SOIC package. It combines TTL- and CMOS-compatible control inputs with low analog on resistance and switching times below 150 ns, making it suitable for precision signal-routing and test-and-measurement systems. An analog switch is an integrated semiconductor device that connects or disects signal paths under digital control. The DG401 belongs to the monolithic CMOS analog-switch hierarchy, which also includes multiplexers and demultiplexers. Unlike a mechanical relay, it changes connection state electronically and enables compact, repeatable routing of low-voltage analog signals in instrumentation, communications, and industrial control equipment. Key characteristics include two independent SPST switch circuits, 45 Ω maximum analog on resistance, and switching time below 150 ns. According to the Analog Devices DG401 product page, the redesigned DG401, DG403, and DG405 families also feature guaranteed low on-resistance matching between switches of 2 Ω maximum and guaranteed on-resistance flatness over the signal range of 3 Ω maximum. The typical on resistance is 20 Ω. The DG401DY+ uses TTL- and CMOS-compatible digital inputs, allowing its control signals to be driven by a broad range of digital logic families. Its monolithic CMOS implementation provides consistent bidirectional analog conduction when a switch is closed. The normally-open topology keeps each switched node disconnected during the off state, which helps prevent unintended signal paths in test systems and measurement circuits. Typical uses include automated test equipment, sample-and-measurement systems, instrumentation signal routing, communications equipment, and industrial control modules. Its dual-channel organization reduces the number of packages required when two independently controlled signal paths are needed. The 16-pin SOIC format supports conventional surface-mount assembly and is convenient for designs that require multiple switch functions without using a large connectorized relay. When designing around the DG401DY+, place the device close to the routed signal nodes to minimize PCB-trace resistance and capacitance. Check the absolute maximum signal and supply ratings in the manufacturer datasheet, particularly for bipolar analog signals, and use a defined control state during power transitions to prevent unwanted switching. Treat the 45 Ω maximum on resistance as a signal-loss term when calculating attenuation and bandwidth. This page combines the manufacturer specifications, sourcing guidance, pin-package details, and practical comparison information to support faster component selection. It also distinguishes true same-footprint drop-in choices from related DG401-family variants and highlights the electrical trade-offs engineers should review before replacing an installed switch.

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DG403 - Dual High-Speed SPDT Analog Switch, 44V | Analog Devices
DG403

DG403 - Dual High-Speed SPDT Analog Switch, 44V | Analog Devices

The Analog Devices DG403 is an improved, dual high-speed SPDT (single-pole double-throw) CMOS analog switch designed for precision, high-performance switching of analog signals, with a maximum signal voltage range of 44V permitting control of 30Vp-p signals, guaranteed on-resistance matching of 2 ohm max between switches, and guaranteed on-resistance flatness of 3 ohm max over the signal range, housed in a 16-pin SOIC package. An analog switch is a semiconductor device that passes or blocks analog signals under digital control, acting as the solid-state equivalent of a relay contact. Within the signal-chain hierarchy, the DG403 belongs to the analog switches and multiplexers family, positioned below analog multiplexers (which route many channels) and above simple pass elements, and it is a core building block of analog front-end and signal-routing subsystems in data acquisition systems. Key features include CMOS or TTL-level compatible logic activation, operation from single-ended supplies of +5V to +34V or split supplies from plus/minus 5V to plus/minus 17V, and a high-voltage silicon-gate process. Each of the two independent control inputs selects between two signal paths, providing the equivalent of two SPDT relay contacts with no moving parts. The improved redesign (originally by Maxim Integrated, now Analog Devices) added guaranteed low on-resistance matching between switches and flatness over the signal range, while the epitaxial layer prevents the latch-up associated with older CMOS technologies. The ON-resistance variation with analog signal level is quite low over a plus/minus 15V analog input range, ensuring low signal distortion. Typical applications include audio and video signal routing, precision data-acquisition channel selection, sample-and-hold circuits, and replacing electromechanical relays in industrial and instrumentation signal paths. Where two single-pole single-throw contacts are needed, the DG401 offers SPST functionality; the DG405 offers DPST. Designers should observe supply-rail headroom: analog signal swings must remain within the supply rails, and logic inputs must meet CMOS/TTL threshold levels for correct switching. This page synthesizes distributor pricing, family cross-references, and practical design notes not found in the manufacturer datasheet.

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DG403CJ+ - Dual High-Speed SPDT Analog Switch | Analog Devices
DG403CJ+

DG403CJ+ - Dual High-Speed SPDT Analog Switch | Analog Devices

The Analog Devices DG403CJ+ is a dual high-speed SPDT analog switch with two independently controlled 2:1 channels, 45 ohm nominal on-resistance, and a 16-pin plastic DIP package. It supports positive supply operation from 10 V to 30 V and bipolar supply operation from -4.5 V to +20 V, making it suitable for precision signal-routing systems that require low distortion and controlled switching behavior. An analog switch is an integrated semiconductor device that routes a signal between circuit nodes using controlled electrical resistance. The SPDT, or single-pole double-throw, topology connects one common terminal to one of two selectable terminals. As a dual analog switch, the DG403CJ+ contains two such channels, allowing a system to select among two signal paths for each switch. It belongs to the broader analog switch and multiplexer IC category within signal-chain semiconductors. Key characteristics include 20 ohm typical on-resistance, maximum on-resistance matching of 2 ohm, and maximum on-resistance flatness of 3 ohm across the signal range. The redesigned switch conducts equally well in either signal direction and provides guaranteed charge injection of no more than 15 pC. Its improved matching and flatness reduce gain variation when the selected source changes, while low charge injection limits transient errors in precision sampling systems. The DG403 family uses a low-voltage on-resistance architecture that is designed for bidirectional signal conduction. This makes the device appropriate for both source and destination switching positions. The dual-channel organization can implement a two-to-one analog multiplexer, a two-input selection network, or two independent SPDT paths when suitable control logic drives the select inputs. Designers should still account for control-logic levels, input voltage limits, and off-impedance behavior when integrating the switch with external circuitry. Typical uses include precision test and measurement systems, data-acquisition front ends, audio routing, communication equipment, and instrumentation in which two signals must be selected with limited insertion loss. Because the part is available in a through-hole 16-pin DIP package, it is also practical for legacy boards, prototype systems, repair assemblies, and industrial equipment where surface-mount conversion would require PCB changes. The principal design consideration is ensuring that signal amplitudes, supply rails, and logic thresholds remain within the operating limits defined by the manufacturer. Keep routing short to reduce parasitic capacitance, connect supply bypassing close to the device, and use a consistent ground reference between the switch and downstream circuitry. Adequate decoupling is especially important when the switch handles high-impedance sources or sampling networks sensitive to charge injection. This product page combines the manufacturer's functional description with practical switching, layout, and selection guidance. It also distinguishes genuine same-footprint family options from devices with incompatible multiplexer topologies, helping engineers avoid substitutions that fit electrically but require a different pin configuration or system architecture.

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DG403CY+ - Dual High-Speed SPDT Analog Switch | Analog Devices
DG403CY+

DG403CY+ - Dual High-Speed SPDT Analog Switch | Analog Devices

The Analog Devices DG403CY+ is a dual high-speed analog switch with two independently controlled SPDT channels, a maximum on-resistance of 45 ohms, and a 16-pin NSOIC package. It supports positive supply voltages from 4.5 V to 20 V and negative supply voltages from -4.5 V to -20 V, while the switch paths conduct equally well in either direction. The device is designed for precision signal-routing applications where fast operation, controlled charge injection, and low off leakage are important. An analog switch is a semiconductor device that routes an analog signal between circuit nodes under digital control. Unlike a mechanical relay, it provides faster switching and compact solid-state construction. The DG403 belongs to the SPDT switch hierarchy: each of its two channels connects one common terminal to one of two switched terminals, allowing a source to select between two destinations. This makes the device suitable for test equipment, signal-chain routing, instrumentation, and data-acquisition systems. Key characteristics include a maximum on-resistance of 45 ohms, guaranteed on-resistance matching of 2 ohms maximum, guaranteed on-resistance flatness of 3 ohms maximum, and charge injection of 15 pC maximum. The redesigned DG403 family also provides low off leakage below 5 nA at +85°C. These characteristics help limit signal attenuation, channel-to-channel resistance variation, transient switching errors, and leakage into sensitive measurement nodes. The DG403CY+ uses independent control inputs to operate its two SPDT channels, with operation supported by positive and negative supply rails. Equal on-resistance in both directions makes the switch useful for bidirectional paths, including instrumentation, automated test, data acquisition, and signal-conditioning systems. The 16-pin NSOIC package supports conventional surface-mount PCB assembly, while its two-channel architecture reduces the number of discrete switches required for dual-path routing. Typical applications include multiplexed sensor acquisition, oscilloscope and measurement-instrument signal routing, automated test equipment, sample-and-hold systems, and industrial control modules. The low charge-injection specification is particularly useful when the switched node feeds a high-impedance amplifier because it limits the control-induced voltage transient that could otherwise disturb a measurement. When laying out a board, keep the common and switched signal traces short, provide a low-impedance return path, and place supply-bypass capacitors near the device. Avoid routing high-impedance signals beside digital control traces, and account for the 45-ohm maximum on-resistance when designing voltage dividers, termination networks, or gain stages. Verify the exact pin mapping and recommended application circuit in the Analog Devices DG403 data sheet before layout release. This page combines manufacturer specifications, replacement guidance, application analysis, and practical implementation notes. It also distinguishes same-footprint upgrades from cross-package options so engineers can identify realistic drop-in choices without treating every functionally similar switch as a direct replacement.

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DG403DJ+ - Dual High-Speed SPDT Analog Switch | Analog Devices
DG403DJ+

DG403DJ+ - Dual High-Speed SPDT Analog Switch | Analog Devices

The Analog Devices / Maxim Integrated DG403DJ+ is an improved dual, high-speed SPDT analog switch with two independently controlled switches, an on-resistance below 45 ohm, and switching times below 150 ns. The device is supplied in a 16-pin PDIP package and uses TTL- and CMOS-compatible digital control inputs. An analog switch is a semiconductor device that connects or disconnects analog signal paths under digital control. The DG403DJ+ belongs to the monolithic CMOS analog switch hierarchy, where each SPDT pole can route one source node to either of two destination nodes. This makes the device useful for signal routing, sampling, test systems, measurement equipment, and audio or communication circuits that require controlled bidirectional analog paths. Key characteristics include low analog ON resistance, fast switching, and low charge injection. Charge injection is the unwanted voltage pulse produced when control charge enters the analog signal node during a transition. Because the DG403DJ+ limits this effect, it simplifies precise sample-and-hold and switched-capacitor circuits. The TTL- and CMOS-compatible inputs simplify interfacing with both older logic families and modern low-voltage digital controllers. The DG403DJ+ uses a monolithic CMOS implementation to provide low power consumption while supporting bidirectional analog conduction. The Analog Devices product page identifies the DG403 family as production devices and describes a redesigned series with guaranteed on-resistance matching of 2 ohm maximum, on-resistance flatness of 3 ohm maximum, typical on-resistance of 20 ohm, and low charge injection of 15 pC maximum for applicable family specifications. Typical uses include precision analog signal selection, sample-and-hold front ends, automated test equipment, audio routing, and instrumentation where a digital controller must select between two signal sources. Each switch can operate in either signal direction because the on-resistance is specified for bidirectional analog conduction. A practical design consideration is to keep input and output traces short and minimize parasitic capacitance around control and analog nodes. Because charge injection and switching transients are inherent to the transition process, the selected source impedance, downstream capacitance, and acquisition timing should be evaluated together rather than relying only on the 150 ns maximum turn-on time. This page consolidates manufacturer information, distributor pricing, verified same-package alternatives, and application-focused design guidance. It also distinguishes documented family-level specifications from parameters that were not present in the supplied source data, making the remaining engineering uncertainties explicit.

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DG403DY+ - Dual High-Speed 45Ω SPDT Switch | Maxim
DG403DY+

DG403DY+ - Dual High-Speed 45Ω SPDT Switch | Maxim

The Maxim Integrated DG403DY+ is a dual, high-speed analog switch containing two independent 2:1 SPDT circuits, with a maximum on-resistance of 45Ω, a 10V to 30V supply range, and a 16-pin NSOIC package. It also supports dual-polarity analog signals from ±4.5V to ±20V. These characteristics make the DG403DY+ suitable for precision signal routing, test systems, sample-and-hold circuits, and instrumentation where short switching times and low charge injection are important. An analog switch is a semiconductor device that routes analog signals between terminals under digital control. Within the interface-IC hierarchy, the DG403DY+ belongs to the CMOS analog-switch family and supports bidirectional signal conduction with TTL- and CMOS-compatible control inputs. Unlike a mechanical relay, it changes connection state electronically with no mechanical movement, allowing faster operation and compact implementation. The DG403DY+ combines a typical on-resistance of 20Ω with a maximum specified resistance of 45Ω. Manufacturer specifications also guarantee on-resistance matching within 2Ω and on-resistance flatness within 3Ω over the signal range. Its switching time is below 150ns, while charge injection is limited to 15pC maximum. These specifications improve signal integrity by reducing amplitude error, timing uncertainty, and unwanted switching transients. The dual SPDT architecture provides two selectable throws for each signal. Operation is symmetric, so the switch conducts equally well in either direction. The redesigned DG403 family is optimized for high-speed routing rather than high-voltage power switching. Input logic levels are compatible with both TTL and CMOS systems, which simplifies control from common digital controllers while retaining analog operating voltages of ±4.5V to ±20V. Typical uses include automated test equipment, oscilloscope and measurement front ends, sample-and-hold acquisition systems, data-acquisition modules, and precision signal-conditioning boards. The two independently controlled channels can route one measurement path to a DUT and another to an instrument or termination. For applications requiring extremely low leakage or fixed matched resistance, engineers should compare the DG403DY+ with other members of the DG400 switch family. Design the layout with short analog traces and a solid ground reference. Keep control traces away from sensitive switched nodes to minimize capacitive coupling. Account for charge injection as a transient step in the output, and use input and output buffering when the source impedance, leakage, or switching glitch would otherwise affect measurement accuracy. This page consolidates the DG403DY+ electrical characteristics, pin-compatible alternatives, application guidance, and design cautions into a practical engineering reference for selecting and implementing this high-speed dual analog switch.

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DG405CJ+ - Dual 45Ω DPST Analog Switch | Maxim Integrated
DG405CJ+

DG405CJ+ - Dual 45Ω DPST Analog Switch | Maxim Integrated

The Maxim Integrated DG405CJ+ is a dual, high-speed CMOS analog switch with two 2:1 DPST normally open circuits, 45 Ω on resistance, and a 16-pin PDIP package. It is designed for routing high-frequency or low-noise analog signals in test, measurement, instrumentation, and signal-conditioning systems. The through-hole package measures 0.300 inch, or 7.62 mm, in body width and supports conventional breadboard and through-hole PCB assembly. An analog switch is an integrated circuit that connects or disconnects signal paths under digital control. The DPST configuration provides one normally open connection per switch, while the dual architecture controls two independent circuits from a shared package. As a CMOS analog switch, the DG405CJ+ combines low-power operation with bidirectional signal handling and compact integration. It belongs to the broader interface IC hierarchy, where analog switches and multiplexers route external signals into precision measurement and signal-processing systems. The redesigned DG405 family includes guaranteed matching between the two switches of 2 Ω maximum and guaranteed on-resistance flatness over the signal range of 3 Ω maximum. These matching characteristics are important when two channels are treated as differential or when signal-path resistance must remain consistent across operating conditions. The DG405CJ+ also supports a 45 Ω nominal on-resistance and normally open switch behavior for applications requiring the default path to be disconnected. Its high-speed CMOS implementation is intended for signal routing where transition time and resistance matching affect measurement accuracy. Because the device uses a bipolar CMOS process, it combines fast switching behavior with controlled off-state characteristics. Signal integrity still depends on the source and load impedance, trace geometry, supply bypassing, and whether the selected switch architecture supports break-before-make operation where required. Typical uses include precision test-and-measurement front ends, oscilloscope and communications test paths, data-acquisition systems, sample-and-hold circuits, and industrial analog multiplexing. The two switch sections can support paired routing, differential measurements, or independent channel selection. Its 16-pin PDIP format is particularly useful for legacy instrumentation, prototype boards, educational platforms, and through-hole assembly processes. For a new PCB, place the DG405CJ+ close to the signal source and destination to minimize trace capacitance and resistance. Keep analog routing away from switching-power nodes, provide a local bypass capacitor near the supply pin, and use a ground plane that supports low-impedance return current. Verify the actual control truth table, break-before-make behavior, supply limits, and maximum signal swing in the manufacturer datasheet before finalizing the layout. This product page combines package, function, matching, and application details with practical selection guidance for engineers comparing the DG405CJ+ with related dual DPST switches. The key decision is not only package compatibility but also on-resistance, leakage, switching speed, control logic, signal range, and whether the replacement is qualified for the original operating conditions.

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DG405DY+ - Dual 2:1 CMOS Analog Switch, 45 Ohm, 16-SOIC
DG405DY+

DG405DY+ - Dual 2:1 CMOS Analog Switch, 45 Ohm, 16-SOIC

The Analog Devices DG405DY+ is a dual 2:1 CMOS analog switch with 45 Ohm typical on-resistance and a 16-SOIC package. The device routes analog signals through two independent switch circuits, supports analog signals up to 15 V, and is specified for a maximum supply voltage of 44 V. Its low-power CMOS design provides TTL- and CMOS-compatible control inputs, low leakage, fast switching, and single-supply operation. An analog switch is a semiconductor device that connects or disconnects signal paths under digital control. Unlike a mechanical relay, a CMOS analog switch changes state rapidly with no moving parts. The DG405 belongs to the analog switch hierarchy, which includes multiplexers, demultiplexers, and matrix switches. These devices are widely used to route measurements, control signals, and sensor outputs between shared circuit nodes. Key electrical features include 45 Ohm typical on-resistance, 20 Ohm typical on-resistance in the redesigned DG405 series, low off leakage of 40 pA, and switch-on time below 100 ns. Charge injection is limited to 15 pC, while on-resistance matching and flatness are guaranteed to 2 Ohm and 3 Ohm maximum, respectively. These characteristics support accurate, high-speed signal routing without the switching transients associated with mechanical contacts. The DG405 uses monolithic CMOS construction to combine low power consumption with fast control response. TTL-compatible inputs simplify interfacing with legacy digital logic, while CMOS compatibility supports modern controllers. Its 44 V maximum supply rating and 15 V analog signal range provide additional headroom in industrial, instrumentation, and test systems, although the precise minimum supply voltage must be confirmed in the manufacturer datasheet. Typical uses include multiplexed measurement front ends, sample-and-hold systems, automated test equipment, and control paths where one of two signal sources must be connected to a common amplifier or converter. The device is particularly useful where switching speed and low leakage matter more than ultra-low on-resistance, such as sensor selection, video routing, and precision measurement multiplexing. When laying out a DG405DY+ board, place input and output traces short, keep analog routing paths away from high-current switching nodes, and use a ground plane that provides a low-impedance return for control and signal currents. Verify that every signal remains within the 15 V analog range and that the supply never exceeds the 44 V maximum rating. This page combines manufacturer and distributor product information, documented cross-reference alternatives, package details, application guidance, and design notes. It also identifies the verified electrical data and highlights the parameters that still require confirmation from the full manufacturer datasheet before a production design is released.

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DG406CJ+ - 16-Channel CMOS Analog Multiplexer | Analog Devices
DG406CJ+

DG406CJ+ - 16-Channel CMOS Analog Multiplexer | Analog Devices

The Analog Devices DG406CJ+ is an improved 16-channel or dual 8-channel CMOS analog multiplexer packaged in a 28-pin DIP. It provides a maximum on-resistance of 100 ohms, channel matching of 8 ohms maximum, and guaranteed on-resistance flatness of 9 ohms maximum. The device accepts single-supply operation up to +30 V and dual-supply operation up to ±20 V. An analog multiplexer is an analog switch integrated with address-decoding logic that connects one of several inputs to a shared output. The DG406 family belongs to the broader switch and multiplexer hierarchy, which includes analog switches, multiplexers, demultiplexers, interface ICs, and semiconductor signal-routing components. Its CMOS construction and rail-to-rail signal handling make it appropriate for routing signals across a wide common-mode range when the signal remains within the device's stated operating limits. Key features include low charge injection of 15 pC maximum, low input leakage of 5 nA maximum at +85 °C, and low power consumption of 1.25 mW maximum. TTL-compatible digital controls simplify interfacing with common logic systems. The manufacturer identifies the improved DG406 as a pin-compatible plug-in upgrade for the industry-standard DG406 and DG407 families, making it useful when maintaining existing analog-routing boards. The internal switch array uses independently controlled analog paths to implement either one 16-channel multiplexer or two 8-channel multiplexers. Address inputs select the active channel, while an inhibit function can place the device in a disabled state. The guaranteed matching and flatness specifications help minimize gain and distortion changes when the selected channel changes, which is important in precision measurement paths. Typical uses include audio signal routing, communication systems, data-acquisition systems, guidance and control systems, sample-and-hold circuits, and test equipment. These applications benefit from the combination of multiple channels, low leakage, low charge injection, broad supply-voltage options, and compact integration. A design can use one device for a larger 16-channel bank or configure it as two separate 8-channel banks when the system requires independent routing. When designing around the DG406CJ+, verify that every routed signal stays within the selected supply range and that control levels meet the TTL-compatible input requirements. Treat the maximum on-resistance as part of the source and amplifier impedance budget, and account for charge injection when sampling rapidly changing signals. Use the manufacturer pin-description table when assigning PCB nets and verify the address and inhibit logic in the final system. This product data combines the manufacturer's device description, identified performance limits, operating applications, and replacement information into an engineering-oriented guide. It also distinguishes the device from lower-information suffix and packaging references by focusing on functional compatibility, electrical limits, and concrete design trade-offs.

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DG406DJ+ - 16-Channel CMOS Analog Multiplexer | Maxim
DG406DJ+

DG406DJ+ - 16-Channel CMOS Analog Multiplexer | Maxim

Analog Devices DG406DJ+ is a 16-channel single-ended CMOS analog multiplexer with a maximum on-resistance of 100 ohm, housed in a 28-pin PDIP package. It accepts TTL/CMOS-compatible 4-bit address logic, provides an enable input for cascaded or multiplexed systems, and supports single supplies from +5 V to +30 V or dual supplies from ±4.5 V to ±20 V. A CMOS analog multiplexer is an analog switch network that connects one selected input signal to a common output while blocking the unselected paths. The DG406 belongs to the broader analog switch and signal-routing hierarchy, where low on-resistance, low leakage, controlled charge injection, and accurate channel matching determine how faithfully a measurement or audio signal passes through the selected channel. The DG406 family provides guaranteed channel-to-channel matching of 8 ohm maximum and on-resistance flatness of 9 ohm maximum across the specified signal range. Maximum on-resistance is 100 ohm, maximum charge injection is 15 pC, and input leakage is 5 nA at +85°C. These characteristics support consistent signal attenuation, low switching transients, and reduced measurement error across the 16 channels. Internally, the device combines 16 analog switches with a TTL/CMOS-compatible binary decoder, a logic-threshold reference, and an enable input. The four address inputs select one of 16 channels, while ENABLE controls participation in a larger multiplexed system. The DG406 and DG407 families are positioned as pin-compatible plug-in upgrades to the established DG406 and DG407 industry-standard devices. Typical uses include high-speed data-acquisition systems, automated test equipment, audio routing, avionics, battery-operated instrumentation, and remote measurement platforms. The DG406DJ+ is especially suitable when one analog source must be selected from 16 inputs while keeping channel resistance and capacitance matching under control. Design the interface around the supported supply range, logic thresholds, address sequencing, and enable timing. Check the maximum signal voltage, ensure every analog pin remains within the supply rails, and account for charge injection when changing channels. A through-hole PDIP footprint also requires adequate board spacing and routing clearance around adjacent high-impedance nodes.

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DG406DN+ - 16:1 CMOS Analog Multiplexer | Vishay
DG406DN+

DG406DN+ - 16:1 CMOS Analog Multiplexer | Vishay

Vishay Intertechnology DG406DN+ is a 16-channel, single-ended CMOS analog multiplexer that routes one of 16 inputs to a common output according to a 4-bit binary address. It offers a typical on-resistance of 50 ohm, low charge injection of 15 pC, a fast transition time of 200 ns, low power consumption of 0.2 mW, and a maximum supply rating of 44 V. The device is supplied in a 28-pin PLCC package measuring 11.51 mm by 11.51 mm. An analog multiplexer is an interface IC that selects one signal path from multiple analog inputs and connects it to a shared output. This reduces the number of input channels required by a data-acquisition, test, measurement, control, or communication system. The DG406DN+ belongs to the CMOS analog-switch and multiplexer hierarchy, where low on-resistance, controlled charge injection, and predictable transition behavior help preserve signal fidelity. Key features include a guaranteed maximum on-resistance of 100 ohm and operation in either signal direction. Improved versions also provide guaranteed channel matching of no more than 8 ohm and flatness of no more than 9 ohm over the specified signal range. The 4-bit address interface supports 16 channel selections, while the single-supply capability simplifies power architecture in systems that do not require dual-rail operation. The DG406DN+ uses CMOS construction to provide low power use while maintaining short switching transitions. Its 15 pC charge-injection figure reduces the transient error produced when the address changes. Low on-resistance is particularly useful when routing higher-impedance sensors or low-amplitude signals because it minimizes voltage loss and improves input impedance. The 200 ns transition time supports faster measurement sequences than a slower mechanical or relay-based selector. Typical uses include multiplexed sensor acquisition, automated test equipment, data acquisition, industrial control, signal routing, and communication systems. In each case, the DG406DN+ can consolidate multiple analog inputs onto a shared amplifier, converter, or processing channel. Designers must still evaluate signal amplitude, bandwidth, injected charge, and channel settling time for their specific source impedance and acquisition speed. The primary design consideration is ensuring that the selected source impedance, acceptable settling interval, and allowable charge-injection error match the application. A low source resistance reduces settling error, while high source impedance can increase sensitivity to switch resistance and capacitance. Decoupling, grounding, and address-transition timing should be handled according to the manufacturer recommendations. This page consolidates verified manufacturer and distributor information, package characteristics, pricing, drop-in candidates, and practical application guidance. It also distinguishes documented electrical facts from values that require confirmation, providing a practical engineering starting point without treating undocumented specifications as guaranteed.

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DG406DY - 16-Channel CMOS Analog Multiplexer | Renesas
DG406DY

DG406DY - 16-Channel CMOS Analog Multiplexer | Renesas

The Renesas Electronics DG406DY is a monolithic CMOS analog multiplexer that routes one of sixteen analog inputs to a single output, or eight inputs differentially, in a 28-pin SOIC (SOIC-28) surface-mount package. It supports analog supplies of up to ±20 V (34 V total across both rails), presents a 100 ohm on-resistance per channel, and combines an array of sixteen analog switches with a TTL- and CMOS-compatible digital decode circuit, an internal voltage reference for logic thresholds, and an ENABLE input for cascading several multiplexers on the same bus. A CMOS analog multiplexer is a switching matrix that connects one of many source terminals to a common terminal under digital control. In the broader taxonomy it sits between the analog switch and the interface IC, feeding the signal path of test equipment, data acquisition systems, and audio routing gear. The DG406 series was designed as a pin-compatible plug-in upgrade for the industry-standard DG406/DG407 family and as a drop-in replacement for the popular DG506A and DG507A series devices. Key features include sixteen analog switches in a 1 x 16:1 single-ended configuration or 8 x 1:1 differential configuration, binary address inputs for channel selection, a separate ENABLE pin for device-level gating, and an internal logic-threshold reference that lets TTL and CMOS logic drive the decode circuit directly from a single supply rail. The part is offered in a plastic SOIC-28 surface-mount package and is listed as an industrial-temperature-grade component. Internally, the DG406 uses CMOS transmission gates, so the channel impedance stays nearly flat and the leakage is low compared with older junction-type analog switches. The device also provides break-before-make behaviour on channel change, which matters when the mux sits in front of a sample-and-hold stage where charge injection from a half-transitioned switch would corrupt the sample. Typical uses include audio signal routing in mixing consoles, multiplexed data acquisition front ends, guidance and control systems, sample-and-hold circuits, and general-purpose test equipment where many sensors or sources must share a single instrumentation amplifier channel. A practical design consideration is supply decoupling: place a local bypass capacitor at each analog supply pin and keep the analog routing traces short and shielded from the digital address lines, because the address decode transitions can couple into the selected channel when the source impedance is high. This page consolidates the manufacturer datasheet detail, package and ordering information, pin-compatible and drop-in replacement options, and practical layout guidance for engineers who need more than a bare parameter table when placing the DG406DY on a new board.

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DG407CJ+ - Dual 8:1 CMOS Analog Multiplexer, 100 Ohm | ADI
DG407CJ+

DG407CJ+ - Dual 8:1 CMOS Analog Multiplexer, 100 Ohm | ADI

The Analog Devices (Maxim Integrated) DG407CJ+ is an improved dual 8-channel (differential 8:1) CMOS analog multiplexer delivering a maximum on-resistance of 100 ohm in a 28-pin PDIP (DIP-28) package. It integrates two independent 8:1 switch circuits for true differential signal switching in a single device. An analog multiplexer is a type of analog switch IC that selects one of several input signals and routes it to a single output under digital control. In the broader signal-chain hierarchy, the multiplexer sits between sensors or signal sources and amplifiers or ADCs, functioning as the routing element of data acquisition and instrumentation systems. The DG407 belongs to the CMOS analog multiplexer switch IC family alongside related devices such as the DG406 (16:1 single-ended version). Key features include guaranteed channel-to-channel on-resistance matching of 8 ohm max, on-resistance flatness of 9 ohm max over the specified signal range, and bidirectional signal conduction - the switches conduct equally well in either direction. The redesigned DG406/DG407 family from Maxim (now Analog Devices) improved matching and flatness over earlier CMOS multiplexer generations, which directly reduces signal-path distortion and channel-to-channel gain error in precision systems. Technically, the DG407 uses CMOS transmission-gate switch elements driven by internal TTL/CMOS-compatible logic decoding, allowing either supply configuration commonly used in industrial analog front ends. Break-before-make switching prevents momentary shorting of two selected channels during address transitions, an important behavior for measurement integrity. Typical applications include differential data acquisition systems, precision test and measurement instrumentation, industrial process-control front ends, and audio or telemetry signal routing where a low 100 ohm max on-resistance preserves signal amplitude with typical load impedances. A key design consideration: on-resistance of 100 ohm forms a divider with the load impedance, so keep load resistance at least 100x higher (10 megaohm or appropriate buffering) to limit gain error, and verify logic-level compatibility with your controller supply rails. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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DG407DJ+ - Dual 8:1 CMOS Analog Multiplexer | Analog Devices
DG407DJ+

DG407DJ+ - Dual 8:1 CMOS Analog Multiplexer | Analog Devices

Analog Devices DG407DJ+ is a dual 8:1 CMOS analog multiplexer with 100 ohm maximum on-resistance, 15 pC maximum charge injection, 8 ohm maximum channel matching, and 9 ohm maximum flatness, housed in a 28-pin PDIP package. The device combines two independently selectable 8-to-1 analog switches with TTL- and CMOS-compatible decoding, a logic-threshold voltage reference, and an enable input for cascading multiple multiplexers. An analog multiplexer is a switching interface that connects one source path to one of several signal paths. The DG407 belongs to the broader analog switch and multiplexer hierarchy, where it enables one physical signal to be routed among multiple sensors, test points, amplifiers, or data-conversion channels. Its differential 8-channel configuration makes it useful when the switched signal must be balanced or when two related signals are selected together. Key features include a maximum on-resistance of 100 ohm, guaranteed channel matching of 8 ohm maximum, and signal-range flatness of 9 ohm maximum. Charge injection is limited to 15 pC maximum, reducing the switching transient that can otherwise disturb precision measurement nodes. The on-resistance conducts equally well in either direction, while TTL- and CMOS-compatible address inputs simplify control from digital logic. Internally, the DG407 uses an array of 16 analog switches and a digital decode circuit for channel selection. A voltage reference establishes the logic thresholds, and the enable input permits device selection when more than one multiplexer is installed. These functions allow engineers to construct larger switched-channel systems while retaining standardized digital control. Typical applications include battery-cell measurement, automated test equipment, data acquisition, industrial process monitoring, instrumentation, and multiplexed sensor interfaces. The device is particularly appropriate when a low-frequency analog node must be routed among several inputs with controlled resistance, matching, and charge injection. Designers should account for the 100 ohm maximum on-resistance when calculating source impedance and settling behavior. Input and ground routing should minimize parasitic resistance and coupling, while digital address and enable traces should be kept away from sensitive analog conductors. The 28-pin PDIP package also requires adequate through-hole spacing and suitable protection from mechanical or moisture exposure. This product page combines the verified manufacturer and distributor information with package-specific selection guidance, data gaps, pricing context, and same-footprint alternatives. It distinguishes directly documented variants from candidates that require independent pin, logic-level, and absolute-maximum-rating verification before substitution.

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