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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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DG407DN+ - Dual 8:1 CMOS Analog Multiplexer | Analog Devices
DG407DN+

DG407DN+ - Dual 8:1 CMOS Analog Multiplexer | Analog Devices

The Analog Devices DG407DN+ is an improved dual 8-channel CMOS analog multiplexer with a maximum on-state resistance of 100 ohm, packaged in a 28-pin PLCC. It combines two independently addressed 8:1 muxes with TTL- and CMOS-compatible channel-selection logic, allowing sixteen analog inputs to share two common outputs. The device supports communication systems, audio signal routing, data acquisition, guidance and control systems, sample-and-hold circuits, and test equipment. An analog multiplexer is a semiconductor switching network that routes one of several analog inputs to a shared output according to binary address and enable signals. In the signal-chain hierarchy, the DG407DN+ is a CMOS analog switch IC, a precision signal-routing component, and part of a broader data-acquisition or communication system. The 28-pin PLCC provides a standardized leaded surface-mount footprint suitable for compact industrial, instrumentation, and embedded-control equipment. The manufacturer describes DG407 as an improved 16-channel or dual 8-channel CMOS analog multiplexer family. Verified distributor information identifies DG407DN+ as a two-circuit 8:1 switch with 100-ohm maximum on-state resistance in a 28-pin PLCC measuring 11.51 mm by 11.51 mm. Its TTL- and CMOS-compatible digital decode circuitry allows the address and enable inputs to operate with common logic families, while the enable function can deselect the mux when it is not required. The DG407 family includes sixteen analog switches, a binary channel-selection decoder, a voltage reference for logic thresholds, and an enable input for device selection. This integrated addressing arrangement reduces the number of external control components required in multiplexed analog systems. The Analog Devices product page also identifies the DG406 and DG407 devices as pin-compatible plug-in upgrades for the industry-standard DG506A and DG507A families, supporting design migration without changing the board footprint. Typical uses include selecting among multiple sensors in a data-acquisition system, routing audio signals between functional blocks, multiplexing instrumentation channels, and directing control signals in communication equipment. Because the mux contains two 8:1 sections, adjacent channel pairs can also be combined as differential or paired selections where the system architecture requires it. The principal design trade-off is the 100-ohm maximum on-state resistance, which can introduce signal attenuation and distortion compared with lower-resistance switching networks. PCB designers should keep analog traces short and provide a stable ground reference beneath the PLCC while separating sensitive inputs from switching or digital return currents. Power and ground connections should be decoupled close to the device, and unused digital inputs should be driven to a defined logic level rather than left floating. The manufacturer datasheet should be consulted for the exact pin assignments, truth table, control timing, electrical limits, and recommended operating conditions before layout or firmware is released. This product record combines verified manufacturer and distributor information, package and pricing references, pin-compatible alternatives, application guidance, and practical selection considerations. It is intended to support sourcing and engineering evaluation while preserving explicit markers wherever the supplied source material does not expose a verified parameter.

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DG408 - 8-Channel CMOS Analog Multiplexer 100Ω | Renesas
DG408

DG408 - 8-Channel CMOS Analog Multiplexer 100Ω | Renesas

The Renesas DG408 is a single 8-channel CMOS analog multiplexer with 100 ohm maximum on-resistance, 15 pC maximum charge injection, and 1.25 mW maximum power consumption, housed in a 16-pin package (PDIP, SOIC, TSSOP options). An analog multiplexer is a signal-routing device that selects one of several analog inputs and connects it to a single output using an array of CMOS transmission gates controlled by digital address inputs. In the signal-chain hierarchy, the DG408 sits between sensors or signal sources and an ADC or amplifier, functioning as a digitally controlled switch matrix within the broader family of analog switches and multiplexers in data acquisition systems. Key features include guaranteed channel-to-channel on-resistance matching of 8 ohms max and on-resistance flatness of 9 ohms max, which preserve signal accuracy when switching between channels. The device offers TTL/CMOS-compatible digital inputs over the full operating temperature range, an ENABLE input for paralleling multiple muxes, and break-before-make switching to prevent momentary channel shorting. ESD protection exceeds 2000 V per datasheet specifications. Technically, the DG408 integrates eight CMOS analog switches, a TTL/CMOS-compatible 3-bit decoder, an internal voltage reference for logic thresholds, and an enable circuit on one monolithic die. Rail-to-rail analog signal handling allows the full supply range to be switched, and input leakage current is limited to 5 nA max at +85C, minimizing signal errors in high-impedance paths. Typical applications include high-speed data acquisition front ends, audio signal switching and routing, automatic test equipment (ATE) systems, and avionics, where its low leakage and fast, clean switching fit dense channel-scanning designs. When designing with the DG408, observe the break-before-make timing margin and keep the digital address lines clean, as slow edges can cause transient feedthrough during decoding. This page synthesizes drop-in alternative cross-references, application guidance, and design notes not consolidated in the manufacturer datasheet.

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DG408CY+ - 8:1 CMOS Analog Multiplexer, 16-SOIC | Maxim Integrated
DG408CY+

DG408CY+ - 8:1 CMOS Analog Multiplexer, 16-SOIC | Maxim Integrated

The Maxim Integrated DG408CY+ is an 8:1 CMOS analog multiplexer in a 16-pin narrow SOIC package, featuring 100Ω maximum on-resistance and 15pC maximum charge injection. It selects one of eight analog inputs through three digital control inputs and supports bidirectional signal conduction, making it suitable for multiplexed measurement, instrumentation, data acquisition, and control systems. The device also provides rail-to-rail signal handling, TTL/CMOS-compatible controls, and low power consumption of 1.25mW maximum. What is an analog multiplexer? An analog multiplexer is an analog switch that connects one common terminal to one of several input terminals. The DG408CY+ belongs to the CMOS analog switch and multiplexer hierarchy, where CMOS circuitry controls low-resistance, bidirectional signal paths. In a typical system, address logic selects a sensor, voltage source, or measurement channel, while the common terminal routes that signal to an ADC, amplifier, or signal-processing circuit. The DG408 can also be used as a demultiplexer when the design requires distributing a signal toward multiple destinations. Key verified features include guaranteed channel matching of 8Ω maximum, on-resistance flatness of 9Ω maximum, maximum on-resistance of 100Ω, and maximum charge injection of 15pC. Input off-leakage is specified below 5nA at 85°C. The device uses TTL/CMOS-compatible digital input control and includes ESD protection exceeding 2000V according to the listed product information. Its 16-pin narrow SOIC package supports conventional surface-mount assembly while keeping the analog signal routing compact. The improved DG408CY+ design emphasizes repeatable channel behavior across the specified signal range. This matters when multiple measurements are compared in instrumentation, automated test equipment, or data-acquisition systems because channel mismatch can create systematic measurement error. Its bidirectional conduction also allows the common signal path to be used according to the system architecture, although external protection and input-voltage limits must be respected. Typical uses include switching analog inputs into an ADC, selecting external sensors, routing test signals, implementing sample-and-hold front ends, and controlling laboratory or industrial measurement equipment. For high-impedance sources, leakage and off-state behavior can be important; for low-impedance signals, on-resistance and charge injection deserve attention. The DG408CY+ is therefore most appropriate when a compact, multiplexed analog-routing solution is needed with verified low-leakage and controlled charge-injection behavior. When laying out the circuit, keep analog traces short and route control signals away from sensitive analog nodes. Confirm that supply voltage, logic levels, input voltage range, and switch-cycle timing meet the device requirements before use. This page consolidates distributor information, verified datasheet features, package details, and design guidance for engineers evaluating the DG408CY+.

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DG408DJ+ - 8-Channel 100Ω CMOS Analog Mux | Analog Devices
DG408DJ+

DG408DJ+ - 8-Channel 100Ω CMOS Analog Mux | Analog Devices

Analog Devices DG408DJ+ is an improved 8-channel, single-ended CMOS analog multiplexer with 100 ohm on-resistance, 8:1 signal routing, and a 16-pin PDIP package. Designed for bidirectional analog conduction, it connects one of eight inputs to a common output according to three binary address inputs, A0, A1, and A2. It can also be used as an 8-channel demultiplexer when signal-flow requirements permit. An analog multiplexer is a semiconductor switching network that routes multiple analog inputs onto a shared output path. The DG408DJ+ belongs to the analog switch and multiplexer hierarchy and combines eight switch elements, TTL/CMOS-compatible channel decoding, and device-enable control in one integrated circuit. This integration reduces discrete switching hardware in data-acquisition, test, communication, guidance, and control systems. The verified product information identifies a nominal 100 ohm on-resistance, 15 pC maximum charge injection, and input off-leakage below 5 nA at 85°C. Its equal bidirectional conduction makes the device suitable for routing signals where the source and destination roles can change. The three address inputs determine the selected channel, while the enable control allows the device to be removed from active service without changing the board interface. The DG408DJ+ is identified as an improved member of the DG408 family and as a pin-compatible upgrade for the industry-standard DG408. Analog Devices lists audio-signal routing, communication systems, data acquisition, guidance and control systems, sample-and-hold circuits, and test equipment among its applications. These uses illustrate why switching bandwidth, on-resistance, leakage, and control compatibility must be evaluated together. A primary design advantage is the ability to consolidate an eight-way analog routing matrix into one 16-pin IC. Logic-grounded address and enable signals control the selected path, while the common analog node reduces the number of external routing connections. Engineers should still verify signal amplitude, bandwidth, settling behavior, supply requirements, and all device limits against the current Analog Devices datasheet before releasing a production design. When sourcing a replacement, preserve the 16-pin PDIP footprint and confirm pin-level compatibility rather than relying only on the DG408 family name. Similar multiplexers can differ in address decoding, enable polarity, injection, leakage, supply range, and electrical performance. The official Analog Devices product page and datasheet remain the controlling sources for those details. This page combines verified distributor availability, manufacturer documentation, functional application analysis, and same-footprint replacement guidance. It is intended to help engineers identify the DG408DJ+, locate its documentation, understand its multiplexing role, and plan a technically defensible sourcing or replacement decision.

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DG408DY+ - 8-Channel 100Ω CMOS Multiplexer | Analog Devices
DG408DY+

DG408DY+ - 8-Channel 100Ω CMOS Multiplexer | Analog Devices

Analog Devices DG408DY+ is a single 8-channel CMOS analog multiplexer with an 8:1 configuration, 100Ω maximum on-resistance, and a 16-SOIC package. Designed for routing one of eight analog inputs to a common output, it combines a TTL/CMOS-compatible decoder with low-power monolithic switch arrays for data acquisition, signal routing, test equipment, and instrumentation. An analog multiplexer is an interface IC that connects multiple input channels to one shared signal path. The DG408 family extends this hierarchy from analog switch to multiplexer, analog interface, and integrated circuit. Its eight independently addressed channels reduce the number of external pins and board-routing requirements when a system must sample or route several sensor, measurement, or test signals through one analog-to-digital converter or processing channel. Key features include a maximum on-resistance of 100Ω, guaranteed channel matching of 8Ω maximum, and signal-range flatness of 9Ω maximum. These specifications help minimize gain or attenuation differences among channels. The TTL/CMOS-compatible digital control accepts common logic levels, while the monolithic CMOS implementation supports low power dissipation for battery-operated and remote instrumentation systems. The DG408 architecture uses eight analog switches, a binary decoder, and a common output arrangement. Because it is a single-ended multiplexer, the DG408 routes eight channels to one output; the closely related DG409 provides a differential four-channel arrangement. Channel matching and flatness limits are particularly important when calibration assumes that all eight positions present nearly identical resistance. The 16-SOIC package supports conventional surface-mount PCB assembly. Typical applications include high-speed data acquisition, audio signal switching and routing, automatic test equipment, avionics, battery-powered instruments, and remote measurement systems. In each case, the multiplexer's low channel variation supports repeatable measurements, while its on-resistance remains suitable for many moderate-impedance sources. Signal bandwidth, input impedance, settling time, and source drive capability must be checked together when establishing an acquisition system's accuracy. For layout, keep the selected analog path short and route all eight channels consistently to reduce crosstalk and propagation mismatch. Place input protection and conditioning networks close to the mux pins, maintain a continuous ground reference, and avoid long parallel routes beneath noisy digital signals. Use the manufacturer's pin-description table when assigning supply, enable, address, common, and output connections. This product page combines the manufacturer's DG408 documentation with parameter-level comparison, replacement guidance, and practical PCB design considerations. It is intended to help engineers evaluate channel architecture, logic compatibility, package constraints, and signal-integrity requirements before integrating the DG408DY+ into a new analog routing system.

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DG409CJ+ - Dual 4:1 CMOS Multiplexer | Analog Devices
DG409CJ+

DG409CJ+ - Dual 4:1 CMOS Multiplexer | Analog Devices

Analog Devices DG409CJ+ is a dual 4:1 CMOS analog multiplexer with 100 ohm maximum on-resistance, 150 ns switching performance, and a 16-pin DIP package. The device supports supply voltages from 5 V to 30 V, operates as two independent 4-position analog switches, and provides break-before-make behavior for applications requiring isolated signal paths. An analog multiplexer is an interface IC that routes one of several input signals to an output terminal under digital control. The DG409 family is described as an improved 8-channel or dual 4-channel CMOS analog multiplexer. In each 4:1 section, four inputs share one output, while separate address-select inputs determine the active path. This places the device in the analog switch and multiplexer hierarchy within broader signal-routing and interface semiconductor systems. Key features include a maximum on-resistance of 100 ohm, 150 ns switching time, low off leakage current of 500 pA, and operation across a 5 V to 30 V supply range. The manufacturer also identifies guaranteed channel matching of 8 ohm maximum and signal-range flatness of 9 ohm maximum for the redesigned DG408 and DG409 families. These characteristics help minimize gain error, channel-to-channel mismatch, and distortion when routing precision analog signals. The DG409CJ+ uses CMOS multiplexing architecture with separate control logic for the two 4:1 sections. Break-before-make switching prevents the incoming and outgoing paths from conducting simultaneously during transition, reducing signal contention in test, measurement, and instrumentation systems. The 16-DIP package provides through-hole mounting and approximately 7.62 mm lead pitch according to the verified distributor listing. Typical uses include automated test equipment, data acquisition, analog signal routing, industrial control, instrumentation, and communications systems. One multiplexer section can select among four sensor outputs while the other routes a separate group of four inputs, allowing a compact dual-bank routing architecture. Designers must also account for the relatively high on-resistance compared with modern low-resistance multiplexers when driving high-impedance or high-capacitance loads. For PCB design, place the DG409CJ+ close to the routed analog signals to minimize trace capacitance and pickup. Confirm logic levels and supply tolerances before decoding address inputs, and verify downstream loading because the 100 ohm maximum path resistance can create signal attenuation with a finite input impedance. This page combines verified manufacturer and distributor information, drop-in family alternatives, application guidance, and a parameter-by-parameter comparison. It also identifies unavailable electrical details explicitly rather than estimating unverified values, helping engineers evaluate the DG409CJ+ for new designs and legacy replacements.

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DG409DJ+ - Dual 4-Channel CMOS Multiplexer | Analog Devices
DG409DJ+

DG409DJ+ - Dual 4-Channel CMOS Multiplexer | Analog Devices

The Analog Devices DG409DJ+ is an improved dual 4-channel CMOS analog multiplexer with 100 ohm on-resistance, 15 pC maximum charge injection, and operation from 5 V to 30 V in a 16-pin PDIP package. It supports bidirectional signal conduction and can also operate as a demultiplexer, making it suitable for analog routing, data acquisition, test equipment, communication systems, audio-signal routing, and sample-and-hold circuits. An analog multiplexer is an interface-switching IC that selects one of several analog terminals and connects it to a common output. The DG409 belongs to the CMOS analog multiplexer hierarchy, alongside demultiplexers and analog switches. Its digital address and control inputs determine the selected channel, while the internal CMOS switch array routes the selected analog signal in either direction. Key features include two independent 4-channel sections, low on-resistance, low charge injection, low off leakage, and guaranteed channel matching and flatness over the specified signal range. The verified product information identifies the device as an improved replacement-compatible mux family and lists 4:1 operation, 100 ohm on-resistance, a 16-pin PDIP package, and a 5 V to 30 V supply range. The device uses TTL/CMOS-compatible decoding logic, allowing it to be controlled by common digital interface voltages. Its multiplexed architecture reduces the number of external signal lines needed when several analog sources must be routed to one processing channel. Because the switch conducts equally well in both directions, the same device can support routing and demultiplexing arrangements when system timing and signal polarity are suitable. Typical applications include audio-signal routing, communication systems, data-acquisition systems, guidance and control systems, sample-and-hold circuits, and test equipment. In these systems, the DG409DJ+ can select among multiple sensors, instrument channels, or signal sources before conversion, amplification, measurement, or further processing. For PCB design, preserve the PDIP pin mapping and route analog traces away from high-current switching nodes. Confirm supply voltage, logic levels, signal amplitude, channel timing, leakage, and off-state behavior against the manufacturer datasheet. The verified data does not provide complete pricing, electrical limits, or a full pin list, so those values must be confirmed before release to production.

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DG409DY+ - Dual 4:1 CMOS Analog Multiplexer | Analog Devices
DG409DY+

DG409DY+ - Dual 4:1 CMOS Analog Multiplexer | Analog Devices

Analog Devices DG409DY+ is a dual 4:1 CMOS analog multiplexer with two independently controlled switch circuits, 100 ohm on-resistance, and a 16-lead SOIC package. It routes one of four differential inputs per circuit to a common output, making it suitable for analog signal selection, instrumentation, test systems, and multichannel measurement equipment. The DG409 family is identified as a production product by Analog Devices. An analog multiplexer is an interface IC that connects multiple analog signal paths to a shared output while preserving the selected signal. The DG409DY+ belongs to the CMOS analog multiplexer hierarchy, where four channels and two switch circuits provide bidirectional signal routing for differential or paired single-ended measurements. Its differential 4:1 organization makes it more appropriate than an 8:1 single-ended multiplexer when a system must preserve two related signals together. Key features include two 4:1 analog switch circuits, maximum on-resistance of 100 ohm, and a 16-SOIC package. According to the manufacturer product page, the redesigned DG408 and DG409 devices provide guaranteed matching between channels of 8 ohm maximum and signal-range flatness of 9 ohm maximum. These channel-matching and flatness characteristics help minimize errors when different input sources feed downstream conversion or measurement circuitry. The DG409 architecture uses monolithic CMOS switches and TTL/CMOS-compatible control inputs, allowing microprocessor, microcontroller, or logic-level addressing. The mux provides low on-resistance in either signal direction, making the selected channels suitable for bidirectional routing. Designers should still account for switch resistance, off-channel leakage, supply limits, settling behavior, and the analog signal range when determining whether the architecture meets an application's accuracy and bandwidth targets. Typical applications include differential sensor acquisition, automated test equipment, data acquisition systems, sample-and-hold networks, signal routing for measurement front ends, and multiplexed control paths. The DG409DY+ is particularly useful when several sensors or test nodes must be selected without duplicating a complete analog front end. Its two independent 4:1 sections also permit simultaneous selection of two related channels. For layout, place the selected source and destination traces close to the device and route them away from high-current switching nodes. Use a continuous ground plane, minimize connector stubs, and provide local bypass capacitance on the supply pins. Confirm the power polarity and maximum supply voltage against the manufacturer datasheet before connecting the part. This product page combines the DG409DY+ architecture, verified package information, pin-compatible alternatives, application guidance, and practical layout considerations to support faster component selection and board-level implementation.

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