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DG411DY-E3 - Quad SPST 35Ohm CMOS Analog Switch | Vishay
The Vishay Siliconix DG411DY-E3 is a precision monolithic quad SPST CMOS analog switch IC featuring four independent 1:1 single-pole single-throw switches with a maximum on-resistance of 35 ohm, housed in a 16-pin SOIC package (0.154 inch, 3.90 mm width). It is a lead-free, RoHS-compliant member of the DG411 family designed for high-speed, low-error switching of precision analog signals. An analog switch is a semiconductor device that routes or blocks analog signal paths under digital control, sitting within the broader taxonomy: analog switch IC -> signal switch -> interface/signal-conditioning IC -> semiconductor. Quad SPST switches like the DG411 are the workhorses of analog front-end design, replacing electromechanical relays and discrete JFET switching where board space, speed, and reliability matter. Key features include extremely low power consumption of approximately 0.35 uW, TTL- and CMOS-compatible digital inputs, and low on-resistance matching between the four switches. The CMOS transmission-gate architecture conducts equally well in either direction, supporting bipolar analog signal swings when dual supplies are used. The -E3 suffix denotes tin/lead-free plating with RoHS compliance for modern assembly processes. Technically, each switch is built as a CMOS transmission gate with an n-channel and p-channel MOSFET in parallel, driven by level-shifting gate control circuitry derived from the digital input. This topology keeps on-resistance relatively flat over the analog signal range and minimizes charge injection, which is critical for sample-and-hold, integrator-reset, and audio signal-routing accuracy. Typical applications include audio and video signal switching, precision test-and-measurement signal routing, sample-and-hold circuits, and data-acquisition channel multiplexing, where its 35 ohm channel resistance and low quiescent power keep inserted errors and thermal drift small. Designers should verify total supply voltage headroom: the DG411 family is specified for dual supplies in the region of plus/minus 15 V, and signal swings must remain within the supply rails to avoid latch-up or increased distortion. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
DG412CJ+ - 4-Channel SPST Analog Switch | Maxim Integrated
The Maxim Integrated DG412CJ+ is a 4-channel, independently controlled SPST analog switch IC with a 45 Ω on-resistance specification, housed in a 16-pin PDIP package. The device is designed for signal routing in test, measurement, communication, and industrial control systems where four separate analog paths must be selected with low distortion and controlled resistance. An analog switch is an interface IC that connects or disconnects a signal path under digital control. The DG412CJ+ belongs to the analog switch family, which sits within interface ICs and broader semiconductor signal-routing systems. Its four SPST channels provide simple on/off selection rather than multiplexing several inputs onto one output. This makes it suitable for bypassing, routing, isolation, and test-fixture applications where the signal must preserve amplitude and waveform integrity. The verified product information identifies the DG412CJ+ as an improved, quad, SPST analog switch. Maxim describes the DG411, DG412, and DG413 family as featuring low on-resistance matching between switches, with a maximum matching value of 3 Ω, and guaranteed on-resistance flatness over the signal range, with a maximum flatness difference of 4 Ω. These characteristics help reduce channel-to-channel variation and signal amplitude errors in precision analog paths. The manufacturer product page also lists a 1ku list-price starting point of $3.68. The CJ+ ordering code uses the manufacturer’s 16-pin PDIP package, making it appropriate for through-hole prototyping, educational platforms, and legacy or industrial assemblies where a socketed DIP footprint is preferred. The four control inputs are intended for digital control, while the switched terminals carry analog signals. The design must still be checked against the complete datasheet for absolute maximum ratings, switch configuration, control logic, charge injection, off leakage, and operating limits. Typical uses include selecting one of several sensor outputs, isolating instrumentation inputs, controlling analog test paths, routing audio or communication signals, and implementing sample-and-hold or measurement front ends. Because the device is a physical switch rather than an active amplifier, system performance depends on source impedance, signal amplitude, control timing, parasitic capacitance, and PCB leakage. Use a ground plane, short analog traces, and an appropriate bypass strategy when integrating it into a mixed-signal board. The DG412CJ+ is a sensible choice when four independent SPST paths, a DIP package, and low matched on-resistance are required. For a new compact design, a surface-mount equivalent may simplify assembly; for a different multiplexing architecture, a mux or demux device should be considered instead. This page combines the verified manufacturer and distributor information with practical selection, application, and design guidance.
DG412DJ+ - 45Ω Quad SPST Analog Switch | Maxim Integrated
The Maxim Integrated DG412DJ+ is a four-channel, single-pole single-throw CMOS analog switch rated for a maximum 44 V supply and a 15 V analog signal range. Its four independent SPST switches provide 1:1 signal routing in a 16-pin PDIP package. The device is specified with 45Ω on-resistance, 110 ns turn-on time, and low power dissipation of 0.35 mW. An analog switch is a semiconductor device that connects or isolates an analog signal path under digital control. The DG412DJ+ belongs to the analog switch hierarchy, where CMOS switching transistors replace mechanical contacts for faster operation, compact integration, and electronic control. Its four independent channels can each connect one analog terminal to one switched terminal, making the device suitable for signal multiplexing, sampling, test-point isolation, and routing systems. The principal features include four independent SPST switches, a 44 V maximum supply rating, and a 15 V analog signal range. According to the manufacturer datasheet, on-resistance matching between switches is maintained to 3Ω maximum, while guaranteed on-resistance flatness across the signal range is 4Ω maximum. These characteristics help reduce channel-to-channel resistance variation when the same control sequence drives multiple signal paths. The DG412DJ+ uses TTL- and CMOS-compatible digital inputs, allowing straightforward interfacing with microcontrollers, FPGA I/O, and logic families. Its 110 ns turn-on time supports faster signal-path changes than traditional relay-based implementations. The monolithic CMOS construction also enables low power dissipation, with the datasheet listing 0.35 mW for the characterized operating condition. Typical applications include multiplexed sensor acquisition, audio and communication signal routing, automated test equipment, data acquisition systems, and general-purpose analog signal isolation. The four-channel arrangement is especially useful when several independent sources must be selected without using mechanical relays. Signal integrity and transient requirements should still be checked against the actual source impedance, load, bandwidth, and supply conditions. For PCB implementation, use the 16-pin PDIP footprint and route the digital control signals to minimize switching noise coupling into sensitive analog nodes. Decoupling capacitors should be placed close to the supply and ground pins, while switched analog traces should be kept short and away from control clocks. Confirm absolute maximum ratings, logic thresholds, and off-state isolation before finalizing the design. This product page combines manufacturer specifications, package details, application guidance, and same-footprint replacement information to support faster component evaluation. It also highlights the principal trade-offs engineers should assess: on-resistance variation, switching speed, logic compatibility, power dissipation, and the mechanical constraints of a through-hole PDIP package.
DG413CJ+ - 4-Channel SPST Analog Switch | Analog Devices
Analog Devices DG413CJ+ is a four-channel, single-pole single-throw analog switch with a maximum on-resistance of 45 ohm, a maximum switching time of 145 ns, and a PDIP-16 through-hole package. The verified product information identifies four normally open SPST switches, a supply range of ±4.5 V to ±20 V, and an operating temperature range of 0 C to +70 C. It is designed for routing analog signals in test, measurement, instrumentation, and signal-conditioning systems where four independent channels must be switched from common control circuitry. An analog switch is an integrated semiconductor device that connects or disconnects signal paths under digital control. The DG413 belongs to the analog-switch and multiplexer hierarchy, using MOSFET switch elements to control voltage or current paths. Unlike a mechanical relay, it provides compact, solid-state switching and is intended for low-voltage signal routing rather than power switching. Its four-channel architecture lets one system control multiple analog measurement or signal nodes efficiently. The DG413 family is documented by Analog Devices as an improved quad SPST analog switch with low on-resistance matching between switches and guaranteed on-resistance flatness over the signal range. Verified manufacturer-family information states that the redesigned DG411, DG412, and DG413 switches provide on-resistance matching of 3 ohm maximum and on-resistance flatness variation of 4 ohm maximum. This helps reduce channel-to-channel error in instrumentation and test systems. The DG413CJ+ is specifically identified as the PDIP-16, through-hole ordering variant. The device supports dual supplies from -20 V to -4.5 V and +4.5 V to +20 V, with a maximum dual supply span stated as ±20 V. Its four normally open SPST channels can be used to route external signals, sample-and-hold paths, or measurement inputs. The 145 ns maximum off time and 45 ohm maximum on-resistance are useful when timing and insertion resistance matter, although the verified data does not provide every timing threshold or control-pin detail. Typical applications include automated test equipment, oscilloscope and instrument signal routing, data-acquisition systems, sensor interface switching, communication signal conditioning, and control systems requiring multiple analog paths. Designers should account for the relatively high 45 ohm maximum on-resistance compared with modern low-resistance switches, especially when driving high-impedance sensors or precision divider networks. A key design consideration is the ±4.5 V minimum dual supply requirement. The through-hole PDIP-16 package is appropriate for through-hole assembly, prototyping, repair, and industrial control boards, but it is not interchangeable with surface-mount TSSOP-16 variants without a package redesign. This page combines verified manufacturer-family information, distributor observations, package details, and design guidance for DG413CJ+ selection and replacement planning.
DG413CY+ - 4-Channel SPST Analog Switch | Analog Devices
The Analog Devices DG413CY+ is an improved quad SPST analog switch IC with four independent, normally open switch channels, 45 ohm typical on-resistance, and a 16-pin SOIC package. The verified distributor listings identify the device as a 4-circuit 1:1 analog switch, while the manufacturer describes the DG413 family as production devices with improved on-resistance matching and guaranteed flatness across the signal range. An analog switch is an electronic semiconductor device that routes signals between circuit nodes under digital control. The DG413 belongs to the analog switch family within the broader interface IC and signal-routing hierarchy. Each of its four SPST channels connects one input terminal to one output terminal when enabled, allowing a system controller to select, isolate, or route external signals. The normally open configuration leaves the signal path disconnected until the appropriate control input is asserted. The DG413CY+ is specified as a 4-channel, 1:1 SPST switch with 45 ohm on-resistance in a 16-SOIC package. The family is used in sample-and-hold circuits, test and measurement equipment, signal routing, and other applications requiring controlled analog connectivity. The manufacturer’s product information specifically highlights improved low on-resistance matching between switches and guaranteed on-resistance flatness over the signal range, helping preserve signal integrity when multiple channels must behave consistently. The CY+ ordering code identifies the leaded 16-SOIC configuration, and the distributor results list both tube and tape-and-reel order variants under the DG413CY+ family. The product page identifies the DG413 family as production, so the listed DG413CY+ is presented as an active analog switch option. DG413CY+T is also listed by DigiKey and Arrow, while DG413DY+ is identified in comparison results as another 16-pin NSOIC member of the DG413 family. For drop-in sourcing, verify the exact pinout, enable polarity, and package dimensions in the manufacturer datasheet before substituting a related ordering code. The verified data identifies the product as a 16-SOIC part, but it does not provide a complete pin table, control logic levels, channel leakage, charge injection, switching time, supply-voltage range, or temperature limits. Those parameters should be obtained from the DG413 manufacturer datasheet before final circuit approval. This page combines the verified manufacturer and distributor information, same-package family alternatives, pricing references, and application-focused design guidance. It is intended to help engineers identify the correct DG413CY+ ordering code and distinguish it from related SOIC and TSSOP versions without assuming unreported electrical details.
DG413DJ-E3 - Quad SPST CMOS Analog Switch 35 Ohm | Vishay
The Vishay Siliconix DG413DJ-E3 is a precision monolithic quad SPST CMOS analog switch with 35 ohm maximum on-resistance, four independent 1:1 switching channels, and a wide 5 V to 44 V supply range, housed in a 16-pin PDIP (0.300 in, 7.62 mm) through-hole package. An analog switch is a semiconductor device that routes or blocks analog signal paths under digital control, sitting within the broader hierarchy of interface ICs and signal routing components. Quad SPST switches such as this part provide four independent single-pole single-throw contacts that can pass signals in either direction with high off-isolation, unlike relays or discrete FET solutions which are larger and slower. The DG413 family from Vishay, like the related Analog Devices and Renesas DG411/DG412/DG413 parts, combines a 2-Normally-Open / 2-Normally-Closed channel configuration with TTL and CMOS-compatible logic inputs. Key features include 35 ohm on-resistance, low charge injection of 5 pC, -85 dB crosstalk at 1 MHz, and low off-state capacitances of 9 pF (CS(off)) and 9 pF (CD(off)). The device operates from -40 C to +85 C ambient and supports dual supplies of +/-13.5 V to +/-16.5 V as well as single-supply operation across the 5 V to 44 V range. Architecturally, the part uses CMOS transmission-gate switching cells driven by level-shifting logic inputs, enabling low error switching of precision analog signals with fast switching times. The E3 suffix denotes Vishay's lead-free, RoHS-compliant finishing. Typical applications include precision signal routing in test and measurement instrumentation, industrial process-control signal multiplexing, audio signal switching, and data-acquisition front-end channel selection where high off-isolation and low charge injection preserve signal fidelity. A key design consideration is that logic inputs must swing to the appropriate supply rails; driving the switch with logic levels referenced outside the supply range causes incorrect switching or damage. This page synthesizes distributor availability data, drop-in alternatives, and practical design guidance not consolidated in the manufacturer datasheet.
DG413DY+ - 4-Channel SPST CMOS Analog Switch | Analog Devices
The Analog Devices DG413DY+ is a precision monolithic quad SPST CMOS analog switch with four independently selectable channels, a 45 Ω on-resistance specification, and a 16-SOIC package. Designed for high-speed, low-error routing of analog signals, the DG413DY+ operates from single or dual supply rails and accepts signals ranging between 4.5 V and 30 V. An analog switch is an integrated circuit that connects or disconnects signal paths under digital control. The DG413DY+ belongs to the CMOS analog switch hierarchy, where each of its four single-pole, single-throw channels can independently route a source terminal to one of two possible signal paths. This makes the device useful when a system must select among sensors, measurement channels, test points, or external circuit branches without introducing mechanical relays. Key features include four independent SPST switches, 1:1 signal routing, a maximum on-resistance of 45 Ω, low on-resistance matching between switches of 3 Ω maximum, and on-resistance flatness of 4 Ω maximum over the signal range. The device uses CMOS-compatible control inputs and supports improved conduction in either signal direction. These characteristics help preserve signal integrity in precision measurement, test, instrumentation, and communication circuits. The DG413 family uses an enhanced CMOS process to combine low power dissipation, high switching speed, and low on resistance. Because the switches provide equal electrical performance in both directions, a PCB designer can use consistent routing practices for paired signal paths. The manufacturer emphasizes improved matching and flatness because these characteristics directly influence gain error, channel-to-channel variation, and the accuracy of analog measurements passing through the switch. Typical uses include battery-powered instrumentation, automated test equipment, data-acquisition systems, communication routing, sample-and-hold front ends, and precision sensor interfaces. The DG413DY+ can support acquisition of multiple analog inputs where each channel requires independent selection while keeping control logic compatible with modern CMOS systems. Its four-channel structure reduces the number of separate switch packages needed in a typical measurement front end. When laying out the circuit, route each switched signal through a symmetric path and keep digital control traces away from sensitive analog nodes. Confirm the actual supply voltage, input-signal range, switch logic levels, and absolute maximum ratings in the manufacturer datasheet before connecting external circuitry. The 16-SOIC footprint also allows board updates where the four analog channels can replace discrete or multiplexed switching arrangements. This page combines the DG413DY+ electrical characteristics, pin-compatible alternatives, package information, and application guidance to support faster component selection and implementation. It also highlights the distinctions between resistance matching, resistance flatness, signal range, and channel count that matter when choosing an analog switch for precision routing.
DG417AK - 35 Ohm SPST Analog Switch IC | Vishay Siliconix
The Vishay Siliconix DG417AK is a precision CMOS monolithic analog switch packaged in an 8-lead SOIC, configured as a single SPST normally-closed (NCX1) channel with a maximum on-resistance of 35 ohm and a typical on-resistance of 20 ohm. It is designed for the +/-15 V analog signal range and drives both TTL and CMOS control logic, making it a drop-in fit for legacy instrumentation and test equipment. An analog switch is a semiconductor device that routes an analog signal between circuit nodes under digital control. The DG417 belongs to the broader family of analog switches and multiplexers, which sit between sensors, amplifiers and converters on one side, and a shared signal chain on the other. A single-pole single-throw (SPST) switch provides one signal path that is either connected or broken, while a normally-closed version holds the path closed until a control signal opens it, which is the safe default for fail-safe routing. Key features include guaranteed on-resistance matching between switches of 3 ohm max and guaranteed on-resistance flatness across the signal range of 4 ohm max, both improvements over earlier generations of this device family. Fast switching action is specified at tON = 100 ns, and ultra-low power requirements of PD = 35 nW keep the supply current draw negligible in battery-backed and standalone measurement fixtures. The design is CMOS monolithic, so the part draws essentially no quiescent bias current. Because the switch is CMOS and complementary-driven, the control pins accept TTL and CMOS levels, and the input stage tolerates a wide analog signal range of +/-15 V on the switched terminals. On-resistance matching and flatness specifications are what make the device usable for precision measurement: they bound the error introduced when the same source impedance drives different switched paths, which is the dominant error term in many 16-bit and 18-bit front ends. Typical applications include sample-and-hold front ends for high-resolution ADCs, precision instrument amplifiers in test and measurement systems, audio and low-frequency signal routing in broadcast and studio equipment, medical monitoring front ends, and general-purpose routing in industrial control and data acquisition modules. The primary design consideration is the always-present 35 ohm series resistance in the closed state, which must be included in the system noise and offset budget; keep the switch close to the high-impedance input it serves so that leakage and stray capacitance do not degrade accuracy. Because the DG417AK is a legacy order code, confirm supply availability and consider the currently active equivalents listed below for new designs. This page brings together the electrical characteristics, the exact package and pinout information, drop-in replacements with quantified parameter differences, and practical layout and signal-integrity guidance that are not consolidated anywhere in the original manufacturer documentation.
DG417CJ+ - 35 Ohm SPST CMOS Analog Switch | Maxim
The Maxim Integrated DG417CJ+ is a single-pole single-throw (SPST) precision CMOS analog switch with a typical on-resistance of 35 ohm, supplied in an 8-pin PDIP package. It is designed for low-voltage analog signal routing in test, measurement, communication, and instrumentation systems. The device provides one independently controlled switch path, complementary switching behavior, low charge injection, and bidirectional signal conduction. According to the manufacturer datasheet, the DG417 family also guarantees on-resistance matching within 3 ohm maximum between switches and on-resistance flatness within 4 ohm maximum across the signal range. An analog switch is a semiconductor device that routes an analog voltage or current between circuit nodes under digital control. In system terms, an analog switch belongs to the interface IC category, where it connects to multiplexers, sample-and-hold circuits, and signal-conditioning networks. Unlike a mechanical relay, the DG417CJ+ changes state electronically without moving mechanical contacts, allowing compact, reliable, and fast signal-path control. The DG417CJ+ offers a rated on-resistance of 35 ohm, low charge injection, low power consumption, and an ESD tolerance of 2000 V. Its precision monolithic CMOS construction supports consistent switching behavior over the usable signal range. The switch operates equally well in either signal direction, making it useful where the source and destination roles can reverse during a measurement or test sequence. The device is available in a commercial temperature grade, and the 8-pin PDIP package is suitable for through-hole assembly, prototype boards, educational laboratories, and legacy industrial equipment. The DG417C version is the leaded commercial-temperature option; the '+' ordering suffix identifies the modern ordering designation used for the same device family. A companion DG417DJ and related MAX4504 devices use comparable 8-pin DIP configurations, but control polarity, voltage limits, and operating-temperature ranges must be confirmed before substitution. Typical uses include routing sensors to a measurement amplifier, selecting inputs in automated test systems, switching references in laboratory equipment, and controlling analog signal paths in communication hardware. Because the device presents about 35 ohm in the closed state, it is best suited to moderate-impedance analog nodes rather than high-current power switching or low-impedance precision-adcitor front ends where switch resistance would degrade accuracy. For layout, keep the analog signal traces short and connect the supply pins to a low-impedance ground plane. Place any bypass capacitor close to the device, avoid routing control signals beneath sensitive analog nets, and confirm that the switched voltage remains within the datasheet limits. The maximum and recommended operating voltages, supply current, leakage current, switching time, and temperature limits should be taken directly from the manufacturer datasheet for the selected part variant. This page combines package, pin, application, and substitution information with practical PCB and signal-integrity guidance. It is intended to help engineers confirm whether the DG417CJ+ fits a legacy analog-routing design before ordering a new PCB.
DG417CY+ - 35 Ohm SPST Analog Switch | Analog Devices
Analog Devices DG417CY+ is a precision, CMOS, monolithic SPST analog switch with a 35 ohm on-resistance, 8-pin NSOIC package, and normally closed contact configuration. The verified product data identifies a single switch channel, a 1:1 signal configuration, 100 ohm maximum off-leakage, and complementary 10 V to 30 V dual-supply operation or 4.5 V to 20 V single-supply operation. It is designed for precision signal routing where low distortion, controlled resistance, and reliable switching are important. An analog switch is a semiconductor device that connects or disconnects an analog signal path under digital control. The DG417 belongs to the broader analog switch and multiplexer hierarchy, which sits within interface ICs used for routing sensor, measurement, communications, and test signals. Unlike a mechanical relay, its CMOS implementation supports fast operation, compact integration, and low power consumption, while the normally closed configuration provides a defined signal path when the control input is inactive. The DG417CY+ is identified as an improved precision switch. The manufacturer describes on-resistance matching of 3 ohm maximum and on-resistance flatness of 4 ohm maximum across the signal range. These characteristics help preserve amplitude accuracy and linearity in systems that repeatedly route low-level analog signals. The verified distributor description lists 35 ohm on-resistance, while an additional source cites a 100 ohm maximum off-leakage figure. The switch can operate from dual supplies of 10 V to 30 V or from a single supply of 4.5 V to 20 V, allowing integration into both traditional bipolar analog systems and lower-voltage equipment. Its single SPST channel makes it particularly useful for one signal path rather than a multiplexer bank. The control and signal-pin architecture supports straightforward routing in test-and-measurement, instrumentation, communications, and precision acquisition systems. Typical uses include signal-path isolation, sensor conditioning front ends, automated test equipment, data-acquisition systems, and communication interfaces. The normally closed behavior is valuable when a default connection must remain active before a controller asserts the switch. Designers should account for charge injection, off-leakage, supply sequencing, and the dynamic behavior of the on-resistance rather than treating the switch as an ideal conductor. For PCB implementation, place the device close to the routed signal to minimize parasitic capacitance and pickup. Keep control traces away from sensitive analog inputs, provide adequate supply decoupling, and verify that the selected control logic is compatible with the device's operating supply. The 8-pin surface-mount package supports compact layouts, but normal reflow and handling practices remain necessary. This page combines the verified DG417CY+ distributor information, manufacturer product details, package information, and design-focused guidance. It also documents where additional datasheet values, exact pin assignments, pricing tiers, and verified drop-in alternatives are needed, allowing procurement and engineering teams to evaluate the part without treating unverified information as guaranteed.
DG417DJ - 35 Ohm Precision CMOS Analog Switch | Vishay
The Vishay DG417DJ is a single SPST precision CMOS analog switch with a 35 ohm maximum on-resistance, fast 100 ns switching action, and an 8-pin plastic DIP package. The device supports analog signals up to 15 V and has a 44 V maximum supply rating, combining low power, low leakage, and compact switching for portable, industrial, and military equipment. An analog switch is a semiconductor interface that routes signals between input and output terminals under digital control. The DG417 belongs to the DG417, DG418, and DG419 family of monolithic CMOS switches. These devices occupy the interface-IC hierarchy above passive switches and analog multiplexers, providing controlled bidirectional or unidirectional signal paths in test equipment, data acquisition, battery-powered instruments, and industrial control systems. Key characteristics include a maximum on-resistance of 35 ohm, a typical on-resistance of 20 ohm, and a turn-on time of 100 ns. The low-power specification is 35 nW, while the 15 V analog signal range supports instrumentation and control signals above conventional logic levels. TTL and CMOS compatibility makes the control interface straightforward for common digital circuits. The DG417DJ uses monolithic CMOS construction to limit power consumption and leakage. Its fast switching action is useful for multiplexing analog measurement channels, while its low on-resistance helps preserve signal integrity when the source impedance is low. Exact off-leakage, channel capacitance, charge injection, and temperature limits should be confirmed in the manufacturer data sheet before finalizing a high-impedance or precision acquisition design. Typical uses include portable data loggers, battery-powered test instruments, industrial process-control modules, military electronics, sample-and-hold systems, and general analog signal routing. For designs requiring higher current or lower resistance, the switch rating must remain within the load and signal-integrity limits of the complete analog path. When laying out the PCB, place the DG417DJ close to the signal source and destination to minimize parasitic capacitance and resistance. Keep the analog and digital return paths disciplined, provide stable supply decoupling, and verify the control-pin logic levels. Reviewing the DG417 data sheet pin description and timing diagrams is essential when new switches are added to an existing board.
DG417DY+ - 35 Ohm SPST Analog Switch | Maxim Integrated
The Maxim Integrated DG417DY+ is a precision CMOS monolithic analog switch with one normally closed SPST channel, 35 ohm maximum on-resistance, and an 8-SOIC package. The verified distributor listing identifies a 1:1 switch configuration and 8-SOIC package, while the manufacturer page places the DG417 family in production and describes improved precision switching. A manufacturer-listed starting price is $3.56 for 1,000 units, making the part suitable for signal-routing designs that need low leakage, controlled charge injection, and bidirectional conduction. An analog switch is a semiconductor device that routes electrical signals between circuit nodes under digital control. The DG417 belongs to the broader interface-IC hierarchy: analog switch, CMOS analog switch, SPST switch, and signal-routing component. Its normally closed configuration means the selected signal path is conductive in the default power-down state, while the control input determines the switching state. This topology is useful when continuity must be maintained unless a separate control signal actively interrupts the path. Verified family-level features include maximum on-resistance of 35 ohms, on-resistance matching up to 3 ohms between switches, on-resistance flatness up to 4 ohms over the signal range, charge injection up to 10 pC, off leakage below 5 nA at +85 degrees Celsius, and ESD withstand of at least 2000 V per Method 3015.7. The device also offers low power consumption and is designed to conduct equally well in either signal direction. The DG417 family is specified for precision analog routing rather than high-voltage power switching. Its CMOS construction supports low leakage and compact integration, while controlled charge injection helps limit transient errors when the switch changes state. Exact supply range, control-logic levels, switch timing, and channel-specific pin behavior are not present in the supplied excerpts and are therefore not inferred here. Typical uses include analog signal conditioning, test-equipment routing, instrumentation, communications equipment, and precision measurement paths. The switch can route a sensor, amplifier, or converter signal when system timing requires a normally closed connection. Designers should verify the complete datasheet limits for supply voltage, signal range, control thresholds, and absolute maximum ratings before finalizing a new design. For PCB implementation, place the device close to the routed signal so trace capacitance and resistance remain low. Keep sensitive analog traces away from fast digital control lines, provide a stable ground reference, and account for injected charge at downstream amplifiers or sampling circuits. The 8-SOIC package is a surface-mount package suitable for conventional PCB assembly and hand or automated placement. This page combines the verified manufacturer overview, distributor identification, and public comparison data with engineering guidance focused on signal integrity, switching behavior, and design validation. It intentionally distinguishes verified facts from parameters that require confirmation in the complete manufacturer datasheet.
DG418CY+ - 35Ω SPST CMOS Analog Switch | Maxim
The Maxim Integrated DG418CY+ is a precision, CMOS, monolithic SPST analog switch with one normally open channel, a maximum on-resistance of 35 Ω, and an 8-pin SOIC package. It is designed to route analog signals while providing guaranteed on-resistance matching of 3 Ω maximum between switches and on-resistance flatness of 4 Ω maximum across the signal range. An analog switch is a semiconductor-controlled routing component that connects or disconnects analog signals under digital control. The DG418 belongs to the broader analog-switch and multiplexer hierarchy, where it belongs to the interface-IC and signal-routing category. Unlike a mechanical relay, it operates without moving contacts and is therefore suitable for compact instrumentation, data-acquisition, industrial-control, and test-equipment systems. Key electrical features include a low on-resistance, low charge injection of 10 pC maximum, and off-leakage current below 5 nA at +85 °C. These characteristics reduce signal-distortion and settling effects in precision circuits. The switch conducts equally well in either signal direction and includes ESD protection of 2000 V minimum according to Method 3015.7. Its low power consumption also makes it suitable for systems where supply current is constrained. The DG418CY+ uses precision CMOS circuitry to provide a consistent resistance when the switch closes. On-resistance matching limits channel-to-channel variation in designs that use multiple switches, while flatness describes how little the on-resistance changes across the usable signal range. These two properties help preserve amplitude accuracy and simplify calibration when the device is used in measurement front ends or signal-routing matrices. Typical applications include data acquisition, instrumentation, industrial control, sample-and-hold systems, test and measurement equipment, and general-purpose analog signal routing. In these systems, the DG418CY+ can isolate a sensor, route a test signal, or select a measurement path without introducing excessive resistance, charge injection, or off-state leakage. Designers should use the pin-description and typical application circuits in the manufacturer data sheet when assigning control inputs and signal pins. The analog signal path should remain within the device's published voltage and current limits, while the control signal should use the logic levels specified for the particular DG418 variant. PCB signal traces should be short and appropriately terminated to minimize coupling into the switched node. This product page combines the manufacturer's DG418 family documentation, package and circuit details, procurement facts, replacement analysis, and practical design guidance. It also distinguishes exact drop-in interchangeability from devices that merely use the same package or offer related switching functions.
DG418DY+ - 35 Ohm Precision CMOS Analog Switch | Analog Devices
The Analog Devices DG418DY+ is a single-channel precision CMOS analog switch configured as a 1:1 SPST normally open switch, with an on-resistance of 35 ohms in an 8-pin SOIC package. It supports a 12 V single-supply configuration and belongs to the DG417, DG418, and DG419 precision analog-switch family. An analog switch is a semiconductor device that routes electrical signals between circuit nodes under digital control. The DG418DY+ combines low power, low leakage, high switching speed, and low on-resistance in a compact surface-mount package. In this switching role, the 1:1 configuration provides one signal path for signal-routing, test, measurement, and control systems. Key features include a typical on-resistance of 35 ohms, maximum on-resistance matching of 3 ohms between switches, and maximum on-resistance flatness of 4 ohms across the signal range. These characteristics help limit resistance variation when a switched signal changes amplitude. The device is manufactured in an 8-SOIC package for compact surface-mount PCB layouts. The DG418DY+ is part of Maxim Integrated's redesigned precision CMOS monolithic analog-switch family. Its low-leakage behavior is suitable for circuits where the off-state contribution to system error must remain small. The 35-ohm on resistance also makes the switch appropriate for general-purpose low- and moderate-impedance analog signals rather than applications requiring near-zero resistance. Typical uses include battery-powered instrumentation, industrial control systems, data-acquisition equipment, test and measurement setups, and portable or military electronic systems. The 8-pin SOIC package supports conventional surface-mount assembly, while the low power and leakage characteristics suit systems where standby current and signal integrity affect overall performance. When designing around the DG418DY+, verify the control logic, supply arrangement, input signal range, and external pull-up or pull-down requirements against the manufacturer pin description and application guidance. The switching node should also be kept away from fast digital return paths to reduce coupling into the analog signal path. This product page combines the manufacturer specifications, drop-in replacement research, a package and pinout reference, and practical engineering guidance to support component selection and PCB implementation.
DG419CY+ - 35Ω SPDT Analog Switch | Analog Devices
The Analog Devices DG419CY+ is a precision CMOS monolithic SPDT analog switch with 35Ω maximum on-resistance, one switch circuit, and an 8-SOIC package. The device operates from 10V to 30V as an analog switch and supports ±4.5V to ±20V dual-supply operation. According to the manufacturer product page, the DG419 family provides guaranteed on-resistance matching of 3Ω maximum and on-resistance flatness of 4Ω maximum across the signal range. An analog switch is an integrated semiconductor that routes an electrical signal between terminals under digital control. An SPDT switch has one common terminal and two switched terminals, making it useful for signal selection, routing, and multiplexing. Within the interface-IC hierarchy, this device belongs to the analog switch and multiplexer class rather than a digital logic or power-management component. The DG419CY+ is designed for balanced low-power consumption and low signal errors. Maxim's DG417, DG418, and DG419 family is specified to conduct equally well in either direction, with low charge injection, low power dissipation, and a minimum ESD tolerance of 2000V. These characteristics make the switch appropriate where controlled routing of precision or low-level signals is required. Electrical operation covers a 10V to 30V analog signal range and supply configurations of ±4.5V to ±20V. The 35Ω maximum on-resistance specification defines the worst-case signal-path resistance, while the 3Ω maximum matching specification limits difference between switch paths. Matching is particularly useful in differential or balanced systems where unequal path resistance could create gain errors or channel mismatch. Typical uses include precision test and measurement equipment, guidance and control systems, analog signal multiplexing, instrumentation interfaces, and communication routing. The 8-SOIC surface-mount package supports compact layouts while retaining conventional small-outline lead spacing. Designers should verify supply limits, signal swing, leakage, switching timing, and operating-temperature requirements against the exact production data before finalizing a high-reliability design. A key implementation consideration is to identify the common and switched pins correctly and account for the 35Ω insertion loss when calculating downstream signal attenuation. The switch also adds capacitance and charge injection, which can affect timing-sensitive or high-impedance nodes. This page combines verified distributor information, manufacturer documentation, drop-in alternatives, and practical selection guidance to support an informed design decision.
DG419DJ+ - 35Ω Precision SPDT CMOS Switch | Analog Devices
Analog Devices DG419DJ+ is a precision, monolithic CMOS SPDT analog switch with one 2:1 switch circuit, a 35 Ω on-resistance rating, and an 8-pin PDIP package. The device uses low charge injection and low power consumption to route analog signals with minimal disturbance. According to the Analog Devices product page, the redesigned DG417, DG418, and DG419 family guarantees on-resistance matching of 3 Ω maximum between switches and on-resistance flatness of 4 Ω maximum over the signal range. An analog switch is a semiconductor device that connects or disconnects signal paths under digital control. The SPDT topology provides one common terminal and two switched terminals, making the DG419DJ+ useful for signal selection, polarity routing, test-point isolation, and channel multiplexing. In the broader hierarchy, it is an analog switch, an interface IC, and a discrete signal-routing function that complements power management, data converters, and communication components. Key benefits include a maximum on-resistance of 35 Ω, bidirectional signal conduction, low charge injection, low power consumption, and ESD tolerance of at least 2000 V per Method 3015.7. The 44 V maximum supply rating gives the device useful headroom for dual-supply analog systems, while the VSS-to-VDD analog signal range supports switching across positive and negative rails. The package is an 8-pin PDIP, allowing conventional through-hole assembly rather than requiring a fine-pitch surface-mount footprint. The DG419DJ+ is built around a monolithic CMOS analog-switch architecture. Its two throws provide complementary routing paths, while the control input determines which terminal is connected to the common node. Matching between the switched paths is important in precision systems because unequal resistance can create gain or attenuation differences after the signal changes direction. The family’s specified 3 Ω maximum matching therefore helps preserve channel consistency. Typical uses include precision signal-path routing in test and measurement equipment, analog front-end channel selection, instrumentation multiplexing, and bipolar analog-signal switching. In a measurement circuit, the common terminal can be connected to either sensor or reference path. In a test system, it can isolate a device-under-test input while keeping the external node disconnected from the source. Designers should account for the 35 Ω on-resistance when calculating signal attenuation, and should verify charge injection against the accuracy required by the selected amplifier or converter. Supply bypassing and control-signal timing also require attention because the CMOS switch and surrounding analog circuitry must remain stable across the intended signal and common-mode ranges. This page consolidates the verified manufacturer information, distributor availability data, package details, parameter comparisons, and practical switching considerations. It also separates confirmed DG419 family characteristics from parameters that were not available in the supplied source data, helping engineers evaluate the DG419DJ+ without relying on unverified specifications.
DG419DY-T1-E3 - Precision CMOS SPDT Analog Switch | Vishay
The Vishay Siliconix DG419DY-T1-E3 is a single-pole double-throw (SPDT) precision monolithic CMOS analog switch that combines low power consumption with high switching speed and excellent signal integrity. Housed in an 8-pin SOIC (NSOIC) package, the part provides a single 2:1 switch channel with a typical on-resistance of 35 ohms, supporting analog signal rails up to ±15 V or 30 V single supply. The DG419DY-T1-E3 is supplied on a 3000-piece tape-and-reel carrier and targets precision signal routing in industrial, instrumentation, and battery-powered systems. An analog switch (also called a CMOS switch or bilateral switch) is an active semiconductor device that uses MOSFET transistors to pass or block analog signals. It belongs to the broader hierarchy of interface ICs -> analog switches/multiplexers -> signal conditioning -> data acquisition. Unlike electromechanical relays, CMOS analog switches offer nanosecond switching, low power draw, no contact bounce, and zero off-state current leakage when fully turned off, making them ideal for solid-state signal multiplexing in modern mixed-signal designs. Key features of the DG419DY-T1-E3 include a typical on-resistance of 35 ohms, low charge injection, break-before-make switching action, and TTL/CMOS-compatible digital logic inputs. The device operates from a single 10 V to 30 V supply or from dual ±5 V to ±15 V supplies, with a logic threshold that allows direct interface to 3.3 V or 5 V microcontrollers. Its low power consumption (under 35 mW quiescent) and rugged ESD protection make it suitable for both portable and line-powered designs. The DG419DY-T1-E3 uses a precision CMOS architecture with on-resistance matching between channels and flat on-resistance across the analog signal range, minimizing total harmonic distortion when passing audio or precision DC signals. The break-before-make switching topology prevents momentary shorts between input sources during channel transitions, which protects upstream drivers and downstream ADCs from current spikes. Typical applications include precision test equipment, guidance and control systems, battery-powered instrumentation, data acquisition front-ends, audio signal routing, sample-and-hold circuits, and programmable gain amplifiers. The wide operating voltage range and high off-isolation make it equally suitable for industrial 4-20 mA signal routing and for low-voltage sensor multiplexing. When designing with the DG419DY-T1-E3, observe the absolute maximum supply voltage of 44 V to avoid permanent damage. Place 0.1 µF decoupling capacitors close to V+ and V- pins, and ensure the logic input does not exceed V+ or fall below ground. For high-impedance source signals, add a small series resistor at the output to limit capacitive kickback during switching transitions. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers select the right CMOS switch and validate its drop-in compatibility against the most popular Vishay, Maxim Integrated, and Texas Instruments equivalents.
DG421CJ - Dual SPST Analog Switch | Analog Devices
The Analog Devices DG421CJ is a low-power CMOS analog switch containing two independently controlled SPST-NO switches, each with a maximum on-resistance of 35 ohms. The device is packaged in a 16-pin through-hole DIP and is specified for dual 15 V supply operation. Its latched control inputs support retained switch state and are suited to analog signal routing, instrumentation, test equipment, and industrial control systems. An analog switch is a semiconductor device that connects or isolates signal paths under digital control. The DG421CJ belongs to the analog switch hierarchy within multiplexers and interface ICs. Unlike a mechanical relay, it offers compact size, low switching power, and fast electronic control. Its normally open configuration provides a defined open state when a control input is deasserted, while the paired switches can route two independent channels or provide isolation between source and measurement circuitry. Key features include guaranteed on-resistance matching of 3 ohms maximum between switches and on-resistance flatness of 4 ohms maximum over the signal range. Typical on-resistance is 20 ohms, and the low-power CMOS design is intended to minimize power consumption in multi-switch systems. The 16-PDIP package uses a 0.300-inch, 7.62 mm body width and supports conventional through-hole PCB assembly rather than surface-mount reflow. The switch architecture provides independent control paths for two SPST-NO channels. Guaranteed matching between the two switches is useful when both devices must present similar resistance to sampled signals. Flatness limits resistance variation across the selected signal range, helping preserve measurement consistency when the source voltage changes. Low-power CMOS operation also makes the device appropriate for portable test and measurement systems where supply efficiency and predictable signal behavior are important. Typical uses include battery-powered instrumentation, automated test equipment, analog measurement front ends, sample-and-hold isolation networks, and industrial interface modules. The two channels can be used for measurement-source selection, signal isolation, or alternating access to two external circuits. In systems with higher voltage levels, designers must confirm the complete absolute-maximum and signal-range limits in the manufacturer datasheet before applying the switches outside the intended dual-supply domain. For PCB layout, place the device so its through-hole leads do not cross sensitive analog traces, and route switched signals away from clocks, relay drivers, and switching power converters. Use a common ground reference for control and analog circuitry. Because this legacy part is obsolete, production replacements should be qualified for pin compatibility, supply voltage, on-resistance, leakage current, switching speed, and temperature range rather than selected by package name alone. This product page organizes the DG421CJ technical characteristics, sourcing information, application guidance, and drop-in replacement assessment. It also distinguishes verified device capabilities from engineering checks that should be completed before approving any substitute in an existing analog signal path.
DG421DJ - Low-Power Latched SPST CMOS Switch | Maxim
The Maxim Integrated DG421DJ is a low-power CMOS analog switch with latch, configured as a dual SPST switch and supplied in a 16-pin DIP package. Its headline characteristics include a typical on-resistance of 20 ohms, guaranteed on-resistance matching of 3 ohms maximum between switches, and guaranteed on-resistance flatness of 4 ohms maximum across the signal range. The device is intended for industrial-grade applications requiring low-power signal routing with controlled channel resistance. An analog switch is a semiconductor device that connects or disconnects an electrical signal path under digital control. The DG421 belongs to the analog-switch hierarchy within interface ICs and broader signal-management semiconductors. Unlike a mechanical relay, a CMOS analog switch operates without moving contacts, enabling compact circuitry, low power consumption, and electronic control. Its latch feature allows the switching state to be retained, which is useful when downstream circuitry must retain a selected connection without continuous control-signal activity. The redesigned DG421 series provides guaranteed matching between the two switches and controlled on-resistance flatness over the signal range. These characteristics are important in instrumentation, data acquisition, test equipment, and control systems where different switch paths should present similar resistance. The 20-ohm typical on resistance can support moderate-voltage, low-frequency signal routing, although the supplied data does not include the complete voltage, current, bandwidth, capacitance, leakage, and logic-level limits. The DG421DJ uses a 16-pin DIP package and is identified as an industrial-temperature-grade, through-hole device. Its 16 terminals accommodate two independently controlled SPST channels, latch-related control connections, power rails, and associated pins. The verified source material confirms a 16-pin DIP package and SPST configuration, but it does not provide a complete public pin-number table. The pinout is therefore left unpopulated rather than assigning terminal functions without direct evidence. Typical uses include multiplexed sensor acquisition, programmable test fixtures, analog signal routing, sample-and-hold systems, and industrial control equipment. In each case, the guaranteed 3-ohm maximum matching and 4-ohm maximum flatness help limit channel-to-channel errors. The DG421DJ is also suitable where a latched switch state simplifies control logic, although engineers should verify the exact electrical limits from the complete manufacturer datasheet before finalizing signal levels, clocking arrangements, and operating conditions. This page consolidates the verified package, configuration, resistance, and sourcing information into an engineer-focused comparison and selection guide. It also distinguishes the DIP-16 DG421DJ from related suffix variants and emphasizes that a true drop-in replacement requires verified pin compatibility, not merely a similar function or shared package family.
DG423DJ+ - Triple SPDT CMOS Analog Switch | Analog Devices
Analog Devices DG423DJ+ is a low-power CMOS analog switch with latches, three independently controlled SPDT channels, a typical on-resistance of 20 ohm, and a 16-pin through-hole DIP package. The device supports low-power operation while maintaining a maximum on-resistance matching of 3 ohm between switches and maximum on-resistance flatness of 4 ohm across the signal range. A CMOS analog switch is a semiconductor device that routes electrical signals between circuit nodes under digital control. The DG423DJ+ belongs to the analog switch and switch-and-multiplexer hierarchy, where it functions as a low-power signal-routing interface between sensors, measurement circuits, amplifiers, converters, and digital control logic. Its latched control interface allows the selected signal path to remain stable while reducing repeated control activity. The DG423 family provides guaranteed on-resistance matching of 3 ohm maximum and on-resistance flatness of 4 ohm maximum. These characteristics are important when several channels must present similar resistance to downstream circuitry. Maximum charge injection is 15 pC, helping limit timing disturbance when control signals change the selected path. The switch also provides ESD tolerance of 2000 V minimum under Method 3015.7. The three SPDT channels give the device useful routing flexibility for test-point selection, signal-path switching, and sampling networks. Each channel can connect one common terminal to either of two selectable terminals, allowing a compact design to implement muxing, polarity selection, or source selection. Because the DG423DJ+ is packaged in a 16-pin DIP, it is also appropriate for prototypes, educational equipment, and through-hole industrial assemblies. Typical uses include multimeter and oscilloscope input routing, automated test systems, instrumentation signal conditioning, battery-powered measurement equipment, and industrial control interfaces. Latched operation can reduce control-bus activity in systems where the selected channel must persist between updates, although the exact latch and enable behavior should be confirmed in the manufacturer datasheet before final sequencing logic is designed. For new PCB layouts, the principal trade-off is package footprint rather than switching performance: the 16-pin DIP is easy to prototype but occupies more board area than a surface-mount alternative. Confirm signal levels, supply voltage, logic thresholds, switch logic, and absolute maximum ratings against the manufacturer datasheet before connecting external signals. This page consolidates the documented electrical characteristics, practical routing applications, drop-in comparison information, and PCB implementation guidance needed to evaluate the DG423DJ+ during component selection.
DG425CY - 16-Pin CMOS Latching Analog Switch | Analog Devices
The Analog Devices DG425CY is a low-power CMOS analog switch with latches, a dual DPST configuration, and a 16-pin SOIC package. Its headline characteristics include 20 Ω typical on-resistance, guaranteed on-resistance matching up to 3 Ω, on-resistance flatness up to 4 Ω across the signal range, and charge injection limited to 15 pC maximum. The switch is intended for low-power signal-routing systems where latched control, low charge injection, and low-power operation are important. An analog switch is a semiconductor device that routes electrical signals between input and output terminals under digital control. The DG425 belongs to the broader CMOS switch and multiplexer hierarchy, where multiplexer and demultiplexer functions determine which signal paths are connected. Its integrated latch retains the control state, reducing the need for continuously maintained control signals and helping lower system power consumption. The DG425 family also supports bidirectional signal conduction, allowing the selected paths to carry signals in either direction. The redesigned DG421, DG423, and DG425 devices provide guaranteed matching and flatness, making channel behavior more predictable than an unqualified resistance specification alone. The DG425CY combines these switch characteristics with a maximum charge injection of 15 pC and an ESD tolerance of at least 2000 V per Method 3015.7. These characteristics make the device useful where switching transients, channel mismatch, or ESD exposure could affect signal integrity. The CMOS implementation supports operation from dual supplies, including a -15 V to +20 V total supply span in the cited DG425CY-T technical data. Switching timing data cited for that ordering variant includes approximately 250 ns turn-on and 200 ns turn-off. Because DG425CY is a specific package and temperature-ordering variant of the DG425 family, engineers should verify the complete ordering code, supply limits, control logic, and electrical limits against the manufacturer datasheet before production release. Typical uses include battery-powered instrumentation, test-equipment signal routing, data-acquisition systems, communication equipment, and analog measurement circuits. The latching control is particularly useful when a selected measurement path must remain connected while the host processor sleeps. The device can also serve in circuits requiring a pair of independently latched double-pole paths for source, range, or channel selection. The principal design consideration is maintaining adequate logic-level compatibility across the complete supply range. Because control thresholds can change with VDD and VSS, external logic should not be assumed to remain compatible throughout every operating condition. PCB layout should keep analog traces short, provide a stable ground reference, and place bypass capacitors close to the supply pins. Designers should also evaluate injected charge against the input impedance and acquisition bandwidth of the downstream circuit. This page consolidates the verified manufacturer and distributor information for DG425CY with package details, application guidance, lifecycle considerations, and replacement qualification notes. It is intended to help engineers distinguish a true same-footprint replacement from a related family member whose latch configuration, temperature grade, package code, or electrical limits differ.
DG425DJ - Low-Power CMOS Latched Analog Switch | Maxim Integrated
The Maxim Integrated DG425DJ is a low-power CMOS monolithic analog switch with latch control, supplied in a 16-pin DIP package. The device provides dual analog switching with a typical on-resistance of 20 Ω, guaranteed on-resistance matching between switches of 3 Ω maximum, and on-resistance flatness over the signal range of 4 Ω maximum. Its specified characteristics support signal-path routing in microprocessor-controlled analog and industrial systems. An analog switch is an electronic semiconductor device that routes electrical signals between circuit paths under digital control. CMOS analog switches combine low power consumption with high input impedance and bidirectional signal conduction. The DG425 family belongs to the analog switch and multiplexer hierarchy, where switches select or isolate analog signals while multiplexers combine multiple inputs into a common output. The latched control interface allows the selected signal path to remain in its commanded state without continuous control activity. The DG425DJ offers equal on-resistance matching between switches, with the manufacturer specifying 3 Ω maximum. Its typical on-resistance is 20 Ω, while flatness across the signal range is limited to 4 Ω maximum. These matching and flatness characteristics reduce channel-dependent gain and timing differences when the device is used for precision signal selection. The switch also provides bidirectional conduction, making it suitable for signal paths where the source direction can change. Charge injection is limited to 15 pC maximum, a useful specification when the switch controls sampled or held analog signals. The device provides ESD tolerance of at least 2000 V under Method 3015.7. Off leakage is specified below 5 nA at +85 °C, supporting isolation between inactive and active channels. Latch timing values include tWW of 200 ns maximum, tDW of 100 ns maximum, and tWD of 100 ns maximum. Typical applications include microprocessor-controlled signal routing, test and measurement systems, industrial control interfaces, data acquisition equipment, and analog signal multiplexing. The latch allows firmware or hardware control logic to establish a connection and then reduce switching-control activity, provided the selected state is not affected by later pulses. When laying out a DG425DJ circuit, route sensitive signals with short traces and provide a stable ground reference. Keep latch-control traces away from analog inputs because coupling from fast digital transitions can disturb held nodes or inject charge into downstream amplifiers. Confirm signal amplitude, bandwidth, leakage, and logic levels against the complete manufacturer datasheet before production use. This page combines the verified DG425DJ manufacturer and distributor information with explicit data-gap markers, application guidance, family comparisons, and selection advice. It does not substitute estimated electrical specifications for values absent from the retrieved source data.
DG441CY+ - Quad SPST 85Ω Analog Switch | Analog Devices
Analog Devices DG441CY+ is an improved quad SPST analog switch IC with four independent normally closed switches, an 85 Ω maximum on-resistance specification, and a 16-pin narrow SOIC package. The device is designed for routing low-voltage analog or digital signals when a low on-resistance, controlled off-state behavior, and compact integration are required. Its four switches support a 1:1 multiplexing configuration according to the manufacturer and distributor product listings. An analog switch is a solid-state semiconductor device that uses control logic to connect or disconnect signals without mechanically moving electrical contacts. The DG441 belongs to the analog switch and multiplexer hierarchy: analog switch IC, multiplexer/demultiplexer IC, interface IC, and integrated circuit. Compared with mechanical relays, an integrated analog switch can operate faster, consume less space, and avoid mechanical contact wear, although its voltage and current ratings remain more restrictive. The manufacturer data sheet identifies four independent SPST switches, on-resistance matching of no more than 4 Ω, on-resistance flatness of no more than 9 Ω across the signal range, and equal conduction behavior in either direction. It also specifies low charge injection of no more than 10 pC, low power consumption of 1.65 mW, and ESD tolerance of at least 2,000 V. The distributor listing identifies the DG441CY+ as a 4-circuit, 1:1 switch with 85 Ω maximum on-resistance in a 16-SOIC package. The SPST topology provides one signal path per switch, while the normally closed state establishes the conduction path before a control input changes state. This makes the device useful for controlled grounding, signal isolation, test-point routing, sample-and-hold paths, and peripheral selection. The low on-resistance matching and flatness reduce gain or timing errors when multiple channels must conduct with consistent resistance. Typical uses include test and measurement systems, data-acquisition equipment, battery-powered instruments, audio and communications equipment, and industrial control systems. The compact 16-SOIC package simplifies board integration, while the quad-channel configuration can implement several switched signal paths in one device. System designers should still verify signal amplitude, bandwidth, leakage, control logic levels, and switch lifetime against the manufacturer data sheet. The principal design consideration is off-state isolation. Although the normally closed switches provide a defined default path, leakage and capacitance can still couple adjacent signals. Keep sensitive routing paths short, use an appropriate ground reference, and control the switches with logic levels compatible with the supply voltage. This page combines verified manufacturer and distributor information, package details, comparison data, and practical replacement guidance for engineers evaluating the DG441CY+.
DG441DJ+ - Quad SPST Analog Switch | Vishay | 16-DIP
Vishay Intertechnology DG441DJ+ is a low-power, quad SPST CMOS analog switch with four independent 1:1 signal paths, 85 Ω typical on-resistance, and a 16-pin DIP package. It supports positive and negative analog supplies, with operating ranges of 10 V to 30 V for dual supply operation and 4.5 V to 20 V for single-supply operation. The device is designed for routing low-voltage analog signals where compact logic control, low power consumption, and bidirectional conduction are useful. An analog switch is a semiconductor device that connects or disconnects an analog signal path under digital control. A single-pole single-throw, or SPST, switch provides one independently controlled conducting path. As a CMOS analog switch, the DG441DJ+ belongs to the interface IC category and uses MOSFET structures to achieve low on-resistance, low leakage, and low control power. Unlike a mechanical relay, it switches much faster and consumes no sustained coil energy. Key electrical features include a low typical on-resistance of 85 Ω, on-resistance matching of 4 Ω maximum between switches, and on-resistance flatness of 9 Ω maximum over the signal range. The switch operates equally well in either direction. Low leakage of 80 pA and a switching time of 150 ns make it useful for precision signal routing, while the 16-pin DIP package supports conventional through-hole PCB assembly. The manufacturer documentation describes improved DG201A and DG202-series compatibility, TTL/CMOS-compatible control logic, and single-supply capability. Different versions of the family documentation list different power-consumption figures, including 0.2 mW in legacy family material and 1.65 mW in revised documentation; the applicable production datasheet should therefore govern final design decisions. The verified product listing identifies the DG441DJ+ as a quad SPST switch in a 16-pin DIP package. Typical uses include data-acquisition systems, sensor multiplexing, analog test equipment, sample-and-hold circuits, battery-powered instruments, and precision measurement front ends. The four independent switches can route four signals independently or be controlled in coordinated sequences. Because on-resistance can vary with signal voltage, analog engineers should account for the specified resistance and flatness when calculating gains and settling behavior. A key design consideration is the relationship between control levels and supply voltage. TTL/CMOS-compatible logic simplifies interfacing, but the selected supply configuration and input levels must remain within the manufacturer limits. The DIP package also requires adequate spacing around the leads for soldering and cleaning, while signal traces should remain short to minimize added capacitance and coupling during the 150 ns switching transition. This page consolidates manufacturer documentation, distributor identification, package information, and verified cross-reference information into an engineering-focused guide. It also distinguishes confirmed drop-in candidates from unsupported alternatives, making the comparison more useful than a basic distributor listing when PCB footprint, switch function, and supply compatibility must be verified before substitution.