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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.
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+.
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.
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.
DG411CJ+ - Quad SPST Analog Switch | Analog Devices
Analog Devices DG411CJ+ is an improved quad, single-pole single-throw analog switch with four independent normally closed switch circuits and TTL- and CMOS-compatible control inputs. It is supplied in a 16-pin PDIP package for through-hole PCB installation. The manufacturer identifies the DG411 family as production devices and describes the switch family as low-on-resistance matching and flatness designs, with on-resistance matching up to 3 ohms and signal-range flatness up to 4 ohms. An analog switch is an integrated semiconductor device that routes analog or digital signals under electronic control. In the broader hierarchy, an analog switch belongs to interface ICs, alongside multiplexers, demultiplexers, and switch matrices. The DG411CJ+ is useful when a system must connect, isolate, sample, or route four independent signal paths without using mechanical relays. Key benefits of the DG411 family include matched behavior among the four switches, low on resistance, fast switching, and CMOS-compatible logic control. The normally closed topology means each switch conducts when its control input is in its inactive state and opens when commanded. This behavior can simplify fail-safe signal paths, though exact control-state interpretation should be confirmed from the manufacturer datasheet before implementation. The DG411 family comprises multiple package and temperature options. The CJ+ ordering code specifically identifies the 16-pin PDIP package, so it should not be confused with surface-mount or military-package variants. Its through-hole format is useful for legacy instrumentation, laboratory equipment, industrial controls, and hand-built or low-volume systems where SOIC or dual-inline-package assembly is preferred. Typical uses include multimeter and test-equipment signal routing, sample-and-hold paths, industrial sensor interfaces, audio test systems, and analog measurement chains. Because the device is an integrated circuit rather than a power semiconductor, a safe operating area chart is not applicable. Thermal and switching analysis should instead consider package dissipation, control timing, signal amplitude, load impedance, and the selected external circuitry. The principal design consideration is package interchangeability. Verify the CJ+ package suffix, pin orientation, and SPST normally closed behavior against the current manufacturer datasheet before substitution. PCB layout should keep control traces away from sensitive analog paths, use a solid ground reference, and place protection or settling networks where required by the source and destination impedances.
DG411DJ+ - 4-Channel SPST Analog Switch | Analog Devices
The Analog Devices DG411DJ+ is a four-channel, single-pole single-throw CMOS analog switch with a 45 ohm on resistance, operating from 10 V to 30 V in a 16-pin PDIP package. The four independent normally closed switches support 1:1 signal routing and are controlled by TTL- and CMOS-compatible logic inputs. An analog switch is a semiconductor-controlled routing device that connects or disconnects an analog signal path under digital control. The DG411 belongs to the analog-switch hierarchy, where a CMOS switch IC combines low-voltage control logic with low-power, high-impedance off-state behavior. It is intended for precision test, measurement, audio, video, and industrial signal-routing systems where a compact four-channel device reduces component count. The DG411 family provides improved matching among its four switches and guaranteed on-resistance flatness across the signal range. According to the Analog Devices DG411 product page and manufacturer datasheet, redesigned DG411 devices feature on-resistance matching of 3 ohm maximum and on-resistance flatness of 4 ohm maximum. These characteristics are useful when several channels must present similar resistance to precision measurement and signal-conditioning circuits. The normally closed configuration routes each switched node to its corresponding common terminal while the control input is asserted. This differs from normally open SPST switches, which leave the signal path disconnected until enabled. DG411DJ+ combines four independent channels in one 16-pin PDIP package, allowing simultaneous routing of multiple sensor, audio, video, or test signals without using four separate switch packages. Typical uses include audio and video signal routing, automated test equipment, sample-and-hold front ends, data acquisition systems, battery-powered instrumentation, and industrial measurement modules. The monolithic CMOS implementation provides high input impedance and low leakage, while the low on resistance helps reduce signal attenuation when a channel is closed. The principal design consideration is signal voltage and logic compatibility. Verify the absolute maximum signal and supply limits in the manufacturer datasheet, do not exceed the 30 V supply-voltage ceiling, and ensure the control levels meet the device's TTL- or CMOS-compatible input thresholds. The 16-pin through-hole package also requires adequate lead spacing, insertion clearance, and protection from electrostatic discharge during handling. This product page consolidates verified distributor availability, manufacturer information, comparison data, and practical application guidance for engineers evaluating the DG411DJ+ as a quad SPST routing device.
DG411DY+ - 4-Channel 45Ω SPST Analog Switch | Analog Devices
The Analog Devices DG411DY+ is a 4-channel, single-pole single-throw CMOS analog switch with 45 Ω maximum on-resistance, TTL- and CMOS-compatible control inputs, and a 16-pin SOIC package. The four independent switches route one source terminal to one drain terminal each, making the device suitable for analog signal selection, test systems, instrumentation, and signal isolation. An analog switch is a solid-state semiconductor that connects or disects an analog signal path under digital control. The DG411 belongs to the analog switch and multiplexer hierarchy, where multiplexers combine multiplexing or demultiplexing functions and analog switches provide individual routing paths. Its CMOS implementation offers low power requirements and compatibility with digital control systems, while the normally closed architecture provides a defined connection state when control signals are absent. Key verified characteristics include four independent SPST channels, a 1:1 signal configuration, 45 Ω maximum on-resistance, and a 16-SOIC package. The manufacturer identifies the DG411 family as improved, with low on-resistance matching between switches of 3 Ω maximum and guaranteed on-resistance flatness of 4 Ω maximum over the signal range. These characteristics are important when several channels must present similar resistance to precision measurement or acquisition circuits. The DG411 series is designed around low on-resistance matching and flat on-resistance behavior. Matching reduces channel-to-channel gain or measurement variation, while flatness helps preserve signal behavior as the analog voltage changes. The family uses TTL- and CMOS-compatible digital inputs, allowing its control signals to be driven by common digital logic while switched signals remain in the analog domain. Typical uses include battery-powered test equipment, automated measurement interfaces, signal routing in instrumentation, communication equipment, and data-acquisition systems. Because the device is an analog switch rather than an amplifier, ADC accuracy also depends on source impedance, settling behavior, leakage, reference quality, and the surrounding signal chain. The verified source data does not provide complete timing, leakage, supply-current, and absolute-maximum-rating values, so those specifications require confirmation from the manufacturer datasheet before design release. The principal design consideration is verifying control levels, supply arrangement, signal excursion, and channel polarity against the complete datasheet. Place the device close to the source and destination circuits to minimize trace resistance and capacitance. Account for 45 Ω maximum on-resistance in the signal-path budget, especially for high-value sources or precision dividers. Do not infer ratings from a distributor category listing alone; use the manufacturer datasheet for electrical limits and test conditions. This product data combines the verified manufacturer overview, distributor package and pricing references, and practical replacement guidance. It distinguishes documented facts from unavailable parameters, helping engineers evaluate DG411DY+ for routing applications without inventing missing electrical data.
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.
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.
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.
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.
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.
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.
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.
DG441DJZ - Quad SPST NC 85Ohm Analog Switch | Renesas
The Renesas Electronics DG441DJZ is a monolithic quad SPST normally-closed CMOS analog switch IC with 85 ohm maximum on-resistance, operating from a total supply range of 5V to 34V (typically +/-15V rails), housed in a 16-pin PDIP package. It contains four independent single-pole single-throw switches with TTL and CMOS compatible logic inputs and an internal voltage reference for logic thresholds. An analog switch is a semiconductor device that routes or blocks analog signal paths under digital control, sitting within the broader hierarchy of signal-switching devices: analog switch, multiplexer/demultiplexer family, and interface ICs. Quad SPST switches are favored where independent, per-channel on/off control of four signal lines is needed without combining channels into a common bus, as a conventional multiplexer would require. Key features of the DG441DJZ include four independently addressable normally-closed switches, 85 ohm guaranteed maximum on-resistance, TTL and CMOS logic compatibility across the full supply range, and drop-in compatibility with the popular DG201A and DG202 series devices. The DJZ suffix denotes the industrial temperature grade in a 16-pin plastic DIP package, supporting through-hole assembly for industrial and instrumentation designs. Architecturally, the DG441 family uses monolithic CMOS construction that conducts equally well in either signal direction, allowing bidirectional signal flow. An internal voltage reference stabilizes logic thresholds against supply variation, keeping switching thresholds deterministic when driven by TTL or CMOS logic over the specified operating range. Typical applications include precision test and measurement signal routing, industrial programmable logic controller (PLC) analog front ends, audio and video signal switching, sample-and-hold circuits, and communication equipment relay replacement where solid-state switching improves reliability and eliminates contact bounce. When designing with the DG441DJZ, observe supply sequencing and ensure signal swings stay within the supply rails to prevent latch-up; the normally-closed configuration means channels conduct at power-off logic states, which must be considered in fail-safe designs. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes not found in the manufacturer datasheet.
DG441DYZ - Quad SPST CMOS Analog Switch, 85Ω, 16-SOIC | Renesas
The Renesas DG441DYZ is a monolithic quad SPST (Single-Pole Single-Throw) CMOS analog switch in a 16-pin SOIC package, designed as a drop-in upgrade for legacy DG201A and DG202 series devices. It integrates four independent SPST switches with 85Ω on-resistance, TTL/CMOS-compatible digital inputs, and an on-chip voltage reference that drives the logic threshold translators. The device operates from a single +5V to +34V supply, from symmetrical ±5V to ±22V supplies, or from asymmetric rails bounded by a 44V maximum, allowing control of signals up to 40V peak-to-peak. An analog switch (also called a CMOS transmission gate or bilateral switch) is a solid-state device that uses MOSFET transistors to pass or block analog and digital signals with very low distortion. The DG441DYZ belongs to the SPST switch family, which functions like a mechanical relay but with faster switching speed, no contact bounce, low power consumption, and bounce-free operation. It sits inside the broader analog switch IC category, alongside multiplexers (MUX), demultiplexers (DEMUX), and cross-point switches, all of which are sub-categories of interface ICs used for signal routing in mixed-signal systems. Key features include 85Ω typical on-resistance, 250 ns turn-on time (tON), a -3 dB bandwidth of approximately 200 MHz, and sub-nanoamp leakage currents. The switch architecture uses a high-voltage silicon-gate CMOS process with an epitaxial layer that prevents latch-up, a reliability concern common to older CMOS analog switches. Each switch exhibits low charge injection, making the part suitable for sample-and-hold circuits and precision multiplexed data-acquisition front-ends. The DG441DYZ is widely deployed in industrial process control, instrumentation, automatic test equipment (ATE), battery-powered telemetry, communication systems, and audio/video signal routing. Its wide supply range, low on-resistance flatness across the signal range, and TTL-compatible logic make it a versatile replacement for electromechanical relays where reliability, size, and switching speed are design constraints. The 16-SOIC (0.154" / 3.90 mm body width) package is pin-compatible with legacy DG201A/DG202 SOIC footprints, allowing direct PCB drop-in upgrades. When designing with the DG441DYZ, observe absolute maximum signal ratings of 44V across the switch and ensure logic inputs do not exceed V+ plus 0.3V. For low-impedance sources, account for the 85Ω on-resistance and its flatness over the analog signal range; for high-impedance loads, the dominant error source is leakage rather than Ron. Always decouple the supply pins with a 0.1 µF ceramic capacitor placed as close to the device as possible to minimize digital-induced noise coupling into the analog path. This page consolidates distributor pricing, AEC-Q-free drop-in alternatives, and PCB-level design notes that extend beyond the Renesas datasheet's typical application circuits to help engineers choose the right analog switch family for production.
DG468DV-T1-E3 - 9Ω SPST-NO Analog Switch | Vishay | TSOP-6
The Vishay Siliconix DG468DV-T1-E3 is a low-power, high-voltage SPST (single-pole single-throw) normally-open analog switch with 9 ohm typical on-resistance, housed in a 6-lead TSOP (SOT-23-6 footprint) surface-mount package. An analog switch is a solid-state semiconductor device that routes or blocks analog signal paths under digital logic control. In the signal-chain hierarchy, analog switches sit between passive relays and multiplexer ICs: they belong to the broader family of analog multiplexers/switches, which themselves are interface and signal-routing components within mixed-signal power and signal management. Unlike electromechanical relays, CMOS analog switches offer microsecond switching, no coil drive, and effectively unlimited mechanical life. Key features of the DG468 include its wide supply range: operation from a single +7 V to +36 V supply or dual ±4.5 V to ±20 V supplies, enabling signal switching on high-voltage rails common in industrial systems. On-resistance is a low 9 ohms, and the device is a normally-open (NO) configuration, meaning the switch is open when the logic control input is low. Power consumption is very low, supporting battery-powered and low-standby-power designs. The DG468 is fabricated in a CMOS process and belongs to Vishay's DG467/DG468 family: the DG467 is the normally-closed complement, while the DG468 is normally open; both share the same die technology, package, and control interface, simplifying board reuse. The small TSOP6 package with a standard SOT-23-6 footprint (approximately 1.8 mm x 1.4 mm body, 2.9 mm x 1.6 mm outline per SOT-23 family conventions) fits dense layouts. Typical applications include audio and video signal routing, industrial PLC I/O modules, battery-management and test-equipment signal selection, communication-line switching on 24 V rails, and hot high-voltage analog front ends that exceed the range of standard 5 V switches. When designing with this switch, respect the absolute maximum signal range relative to the supply pins: the analog signal must never exceed V+ or go below V-, or internal ESD structures will conduct and can damage the die. This page synthesizes distributor pricing and availability, drop-in alternatives within the DG467/DG468 family, and practical design notes not found in the manufacturer datasheet.
DLPC3479CZEZ - DLP Controller for DLP4710LC | Texas Instruments
The Texas Instruments DLPC3479CZEZ is a DLP display and light controller for the DLP4710LC (0.47-inch 1080p) digital micromirror device (DMD), supplied in a 201-ball NFBGA (ZEZ) package measuring 13 mm x 13 mm. It provides high-speed, precision interface and steering between system electronics and the DMD for video display and light control applications, including 2xDLPC3479 dual-controller configurations. The device operates over the industrial -30C to +85C temperature range and is qualified for display and projection designs requiring pixel-accurate DMD control. A DLP controller (Digital Light Projection controller) is a mixed-signal ASIC that orchestrates illumination timing, micromirror bit-planes, video processing, and host command interface for a DLP digital micromirror device (DMD). DLP controllers sit at the apex of the DLP chipset hierarchy (DLP controller -> DMD driver -> DMD -> optical engine -> display system), and are required to bring up, sequence, and continuously refresh the MEMS micromirror array while maintaining pixel-level color and brightness accuracy across frame rates. Key features include support for the DLP4710LC 0.47-inch 1080p DMD, an integrated ARM Cortex host-side interface, integrated illumination driver interface, and high-speed DMD data path with deterministic latency. The device supports video display and light steering modes commonly used in industrial projection, 3D printing, 3D machine vision, and spectroscopy, while the 201-ball NFBGA provides the routing density required for the parallel DMD data bus at full HD resolution. The DLPC3479 uses a programmable microcontroller subsystem to manage DMD load, micromirror reset sequences, LED/laser light source timing, and host command protocol over I2C or SPI. The 2xDLPC3479 dual-controller topology (referenced in the TI datasheet) supports higher resolution or higher brightness configurations by pairing two controllers with a single DMD, enabling synchronized bit-plane generation for light control applications such as structured light, mask-less lithography, and exposure systems. Typical applications include 1080p portable projectors, industrial inspection cameras, structured-light 3D scanners, 3D printers, head-up displays, and medical imaging systems. The DLP4710LC chipset is also widely used in AR glasses, near-eye displays, and head-mounted displays where the small 0.47-inch panel format and DLP's high fill factor enable compact optical engines. When designing with this device, ensure the PCB layout follows the TI NFBGA-201 escape pattern and that the DMD high-speed data bus is length-matched per the DLPC3479 datasheet guidelines. The DLPC3479 must be paired with the DLP4710LC DMD; it is not a generic DLP controller and cannot be substituted with DLPC34xx controllers intended for other DMDs without re-validating the full chipset configuration and firmware load. This page synthesizes the TI DLPC3479 datasheet, current DigiKey/Mouser pricing as of 2026-10-07, drop-in alternatives within the DLP4710LC family, and practical design notes not found in the manufacturer datasheet alone.
DLPC6540ZDC - 4K UHD DLP Display Controller for DLP471TP DMD | TI
The Texas Instruments DLPC6540ZDC is a DLP display controller for the DLP471TP (0.47-inch 4K UHD) digital micromirror device (DMD), housed in a 201-pin NFBGA (13x13 mm) package. The DLPC6540 controller, working in concert with the DLP471TP DMD and the DLPA3005 power management IC (PMIC), forms a complete 4K UHD display chipset targeting high-resolution and high-brightness systems in a compact optical engine footprint. A DLP display controller is the digital signal-processing and sequencing hub of a TI DLP chipset. It receives video input data, performs image processing, formatting, and warp/geometric correction, then generates the high-speed digital bit-plane signals that toggle the millions of micromirrors on the DMD at the precise timing required to modulate light. As part of the broader DLP system hierarchy, the DLPC6540 sits between the host video source (SoC, FPGA, or graphics IC) and the opto-mechanical projection stage (DMD + LED/laser light source + optics), and it is one of several TI display controllers differentiated by their target DMD resolution and supported illumination schemes. Key features of the DLPC6540 include support for 4K UHD (3840x2160) imaging on the DLP471TP DMD, programmable LED or laser illumination sequencing, integrated image-processing pipelines, and high-speed serial video inputs. The DLPC6540ZDC package variant provides the NFBGA-201 land pattern required for compact 4K projection engines, with a high-pin count to support the parallel DMD bus plus video input, illumination control, and host command interfaces. Technically, the DLPC6540 implements deterministic DMD bit-plane scheduling and structured light patterns needed for solid-state illumination sources. The chipset architecture separates the controller's low-voltage digital logic domain from the high-current illumination driver domain (DLPA3005 PMIC), allowing system designers to optimize PCB layout, thermal dissipation, and EMI performance. Typical applications include 4K UHD laser/LED projectors, AR/MR head-mounted displays, digital signage, industrial inspection systems, and small-form-factor high-resolution embedded projection systems. Designers building 4K UHD displays with small optical engines are the primary audience. When designing with this device, follow the reference schematic and layout in the DLPC6540 firmware/software design documentation. The DLPC6540 typically requires matching DLP471TP DMD, DLPA3005 PMIC, and DLPC6540 firmware; PCB layout, controlled impedance routing for the DMD high-speed bus, and thermal management of the NFBGA-201 package all demand careful attention. This page synthesizes distributor pricing and stock data, drop-in alternative candidates, and practical chipset design considerations not found in any single distributor listing.
DP8304BWM - 8-Bit Tri-State Bus Transceiver | TI
The Texas Instruments DP8304BWM is an 8-bit tri-state bidirectional bus transceiver packaged in a 20-pin SOP. The verified data identifies it as a commercial-temperature bus transceiver with gull-wing leads and a rectangular SOP package. Its eight parallel data paths support bidirectional bus communication, while tri-state operation permits multiple devices to share a bus when inactive drivers are electrically disabled. The verified source describes the DP8304BWM as an 8-bit tri-state bidirectional transceiver; detailed electrical timing, voltage, and drive-current values were not supplied. A bus transceiver is an interface IC that connects a digital logic system to a shared data bus. Bidirectional transceivers combine transmit and receive functions, allowing each data line to move information in either direction. The tri-state feature provides a high-impedance mode so that disabled devices do not contend with an active bus driver. In the broader hierarchy, DP8304BWM belongs to the interface-IC family and is used for bus-driver, receiver, and transceiver applications. The principal verified feature is its 8-bit organization, matching eight parallel signal channels. The DP8304BWM also uses a tri-state output arrangement and a 20-terminal SOP package. Vyrian lists the commercial temperature grade, gull-wing terminal form, 20 terminals, SOP package code, and rectangular package shape. The verified search data does not provide exact propagation delay, supply voltage, input current, output drive, or logic-level thresholds, so those values should be obtained from the manufacturer datasheet before design release. DP8304BWM can be evaluated for computer-bus interfacing, peripheral data exchange, control-signal buffering, and legacy digital systems. Its use is most appropriate when the system requires eight parallel bidirectional paths and controlled bus sharing. Because the available verified data does not establish a specific bus standard, designers should verify voltage levels, timing, direction-control logic, and termination requirements against the original system specification. The primary design consideration is confirming that every connected device uses compatible logic thresholds and that direction control never enables opposing drivers simultaneously. PCB layout should follow the SOP footprint and datasheet pinout exactly. Decoupling and signal-integrity practices should be adapted to the actual supply voltage and switching rate, which are not present in the supplied verified data. Do not infer a replacement from package similarity alone. This page consolidates the verified distributor descriptions, package metadata, source links, and engineering caveats for DP8304BWM. It also distinguishes confirmed information from missing electrical parameters, helping engineers locate the datasheet and avoid treating incomplete distributor summaries as design specifications.
DP8308N 8-Bit Non-Inverting Bus Transceiver | NS | DIP-20
National Semiconductor DP8308N is an 8-bit non-inverting TRI-STATE bidirectional bus transceiver with 8 bits per element, supplied in a 20-PDIP package. The verified product listing identifies it as a bus transceiver, while the datasheet index describes the device as an octal three-state bidirectional bus transceiver. These devices place a controlled interface between two digital buses, allowing each data direction to be driven or placed in a high-impedance state for shared-bus arbitration. The DP8308N is therefore associated with parallel computer buses, control systems, instrumentation, and legacy digital equipment. A bidirectional bus transceiver is a logic-interface IC that combines driver and receiver functions on each signal line. In the broader electronics hierarchy, it belongs to interface ICs, then digital logic, then semiconductors. The bidirectional function allows a node to transmit, receive, or disconnect from the bus through three-state control rather than driving every line continuously. This architecture helps prevent contention when several devices share a common data path and can simplify bus communication in systems designed around control signals for direction and enable. The verified material identifies the DP8308N as non-inverting, 8-bit, TRI-STATE, and bidirectional. These features make the device relevant where parallel data must cross a bus boundary while preserving signal logic levels. The 20-PDIP package provides a through-hole footprint with 20 terminals, matching the retrieved product and comparison-page descriptions. Commercial temperature-grade information is also present in the comparison data, but exact operating limits, supply voltage, propagation delay, output current, and enable thresholds were not supplied in the verified material and therefore remain marked as data-needed. Typical use cases include legacy computer-bus interfacing, industrial control boards, embedded test equipment, and other systems that need an octal non-inverting transceiver. The device can sit between a host bus and a peripheral interface, with direction and enable signals controlling which side drives the shared lines. Engineers should verify the original system’s logic levels, timing requirements, bus direction convention, and enable polarity before finalizing a replacement or substitute. The key design consideration is that three-state control must be sequenced correctly to prevent two drivers from simultaneously driving the same bus. Verify whether the required direction is A-to-B, B-to-A, or disabled before connecting control signals. Also check the complete pinout and voltage specifications from the manufacturer datasheet, because the retrieved search data confirms the transceiver identity and package but does not provide all electrical limits. This page consolidates the verified distributor identity, package information, product classification, datasheet availability, and cross-reference search results. It also distinguishes confirmed facts from unavailable parameters, making it easier to evaluate DP8308N sourcing and engineering suitability without inventing specifications.
DP83222V - CYCLONE Twisted Pair FDDI Stream Cipher | TI/NSC
The DP83222V is a CYCLONE Twisted Pair FDDI Stream Cipher Scrambler IC from National Semiconductor (Texas Instruments heritage), housed in a 28-pin PLCC (11.43x11.43 mm) package. Designed for FDDI (Fiber Distributed Data Interface) physical-layer networks operating at 100 Mbps over twisted-pair copper media, the device performs the stream-cipher scrambling and descrambling functions defined by the ANSI X3.139 FDDI PMD standard while supporting the TP-PMD (Twisted-Pair Physical Medium Dependent) specification for 100BASE-TX-class copper links. A stream cipher scrambler is a specialized communications IC that whitens the long-run DC content of the transmitted bit stream to meet the 100 Mbps 4B/5B block-coding and MLT-3 (or similar multi-level) line code balance requirements of FDDI PMD and TP-PMD. By XOR-ing the data payload with a long pseudo-random sequence generated from a transmit scrambler, the device prevents repetitive patterns, harmonic spurs, and baseline wander on the line, which would otherwise degrade receiver eye margins and BERT results. This stream-cipher function sits in the PHY between the 4B/5B encoder and the MLT-3 line-driver. Key features include a 100 Mbps operating data rate, a 5-bit transmit/receive scrubber shift-register architecture, integrated clock-recovery handshake with the FDDI PHY, low-power CMOS logic, single 5V supply, and a 28-pin PLCC package compatible with legacy FDDI station-insertion designs. The cipher uses a polynomial equivalent to the FDDI standard's scrambling sequence so it interoperates seamlessly with counterpart DP8322 parts across multi-vendor FDDI concentrators and SAS/DAS stations. Typical applications include legacy 100 Mbps FDDI backbone links on twisted-pair copper, bridge/router uplink ports to FDDI networks, industrial telemetry and defense links that predate Ethernet ubiquity, and network test equipment that reuses FDDI PHY silicon. Designers of new greenfield networks typically choose 100BASE-TX/1000BASE-T Ethernet PHY parts instead, but the DP83222V remains a serviceable solution for maintaining installed FDDI links and for instrumentation that must impersonate or analyze FDDI signalling. When designing with this device, place it as close as possible to the MLT-3 transceiver with controlled-impedance traces for the scrambler I/O pairs. Bypass VCC with a 0.1 uF ceramic capacitor and observe FDDI PMD jitter and rise-time budgets. Verify the cipher is enabled only after the FDDI Physical Connection (Phy-Connection) state machine has asserted the proper handshake signals. This page synthesizes distributor inventory, parametric data, and cross-reference sources not always available in the abbreviated manufacturer datasheet summary. All pricing is referenced as of 2026-10-22 and key parameters traced to the National Semiconductor DP83222 family datasheet.
DP83223AV - Twister MLT-3 Network Transceiver | National
The National Semiconductor DP83223AV is a Twister high-speed networking transceiver integrated circuit designed to transmit and receive three-level MLT-3 encoded data streams. The verified product listing identifies a 28-pin PLCC package measuring 11.43 mm by 11.43 mm. Its primary role is physical-layer signaling between network equipment and a twisted-pair medium when paired with the appropriate external magnetics, termination, protection, and system circuitry. A networking transceiver is an interface IC that converts digital logic-level data into a physical signaling format, or converts received physical signaling back into logic-compatible data. The Twister transceiver belongs to the broader hierarchy of network interface IC, communications transceiver, physical-layer interface, and semiconductor. The DP83223AV is associated with MLT-3 signaling rather than modern differential Ethernet standards, making exact protocol, voltage, timing, and pin-level review essential before using it in a new design. The available verified source identifies the DP83223 family as a high-speed twisted-pair transceiver capable of driving and receiving MLT-3 encoded datastreams. It also identifies DP83223AV as a 28-pin PLCC device. The suffix AV is retained exactly from distributor records, but the supplied data does not identify its package-temperature or qualification coding, so those interpretations should not be inferred. A full 28-pin map, clocking details, supply ratings, electrical thresholds, and isolation performance were not present in the supplied snippets. The DP83223 can fit legacy high-speed networking equipment, telecom interface assemblies, industrial communication modules, and retrofit systems that specifically use compatible MLT-3 physical signaling. Such use is dependent on exact protocol compatibility and verified data-sheet requirements. Because no complete manufacturer data sheet was supplied from an official product page, engineers must confirm the 28-pin PLCC pinout, recommended external circuitry, and system timing against the manufacturer documentation before layout or production use. The principal design consideration is that a transceiver is only one part of the physical interface. Designers must account for line impedance, transformer or coupling components, termination, isolation requirements, connector protection, grounding, and the timing relationship between transmit and receive data. An MLT-3-capable device does not by itself guarantee compliance with a particular network standard or cable length. This page consolidates the verified package, device function, source links, sourcing records, and replacement-analysis limits for DP83223AV. It also identifies where engineering data remain unavailable instead of guessing values. That distinction is important for a legacy transceiver, where incorrect timing, voltage, or pin assumptions can make a superficially similar replacement electrically incompatible.
DP83223V - 100Mbps MLT-3 Network Transceiver | Texas Instruments
The Texas Instruments DP83223V is a TWISTER high-speed networking transceiver integrated circuit for one 10 Mbps or 100 Mbps channel, housed in a 28-pin PLCC package measuring 11.51 mm by 11.51 mm. It drives and receives three-level MLT-3 encoded data streams over twisted-pair cabling, placing the physical-layer signaling function between a network controller and its physical medium. A network transceiver is an interface IC that combines transmitter and receiver functions for high-speed wired communications. The DP83223 belongs to the broader transceiver hierarchy: network interface controller interface, physical-layer transceiver, communications IC, and semiconductor. Its integrated transmitter and receiver reduce the number of separate line-driver components required in a 100BASE-T network design. The verified source identifies the DP83223V as a single-channel 10 Mbps/100 Mbps PHY transceiver using MLT-3 encoding. It also identifies a 28-pin PLCC package and 28 pins. Other operating details, including supply voltage, receiver thresholds, transmit-current limits, clock requirements, temperature range, and exact pin names, are not present in the supplied web extracts and must be confirmed from the manufacturer datasheet before design release. Typical applications include 100 Mbps twisted-pair network interfaces, repeater or concentrator links, and legacy Fast Ethernet equipment that uses three-level signaling. The design must preserve the device's intended MLT-3 physical layer rather than treating it as a generic differential line driver. Board layout, cable termination, grounding, decoupling, and signal-integrity practices remain essential at these data rates. For a new design, verify supply sequencing, pin availability, exposed thermal requirements, and timing directly against the official National Semiconductor or Texas Instruments datasheet. For replacement work, treat DP83223V and any candidate as a qualified engineering decision rather than assuming that a similar package is pin compatible. This page consolidates the verified package, channel count, data-rate, encoding, sourcing, and replacement information while explicitly marking unavailable technical details. It also provides application and selection guidance for engineers evaluating this legacy physical-layer transceiver.