מעגלי ממשק
תת-קטגוריות
מוצרים (2,300+)
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.
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.
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.
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.
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.
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.
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.
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.
DG441DY+ - 4-Channel SPST Analog Switch | Analog Devices
Analog Devices DG441DY+ is an improved quad SPST normally closed analog switch with four independent 1:1 channels, an 85 Ω maximum on-resistance, and a 16-SOIC package. It operates from 4.5 V to 20 V, supports dual supplies from 10 V to 30 V, and provides low charge injection of 10 pC maximum with power consumption of 1.65 mW. An analog switch is a semiconductor device that connects or disconnects signal paths under digital control. The DG441DY+ belongs to the analog-switch hierarchy, where it functions as an interface IC between low-power control logic and external analog signals. Its normally closed configuration provides a defined signal connection before the control input commands a change of state, making it useful in routing, sampling, test, and signal-isolation systems. The device uses four independent SPST-NC channels rather than a multiplexer arrangement. According to the Analog Devices DG441-DG442 datasheet, the redesigned DG441 family provides on-resistance matching of 4 Ω maximum between switches and on-resistance flatness of 9 Ω maximum over the signal range. Each channel conducts equally well in either direction, which supports signal-path designs where input and output roles may change. The DG441DY+ is specified for low power consumption of 1.65 mW and low charge injection of 10 pC maximum. Charge injection is important when switching precision, high-impedance analog nodes because control-clock energy can otherwise appear as an unwanted voltage step. The device also has an ESD tolerance of 2000 V minimum, providing a defined electrostatic-protection capability for exposed analog interfaces. Typical applications include battery-powered test equipment, data-acquisition systems, audio and measurement signal routing, industrial control interfaces, and precision sensor connections. Four independent switches in one 16-SOIC package reduce board area and permit several signal paths to be switched under a common control interface. The dual-supply capability also allows designers to switch bipolar signals when the system provides the required positive and negative rails. When designing a board around the DG441DY+, verify the normally closed signal state during power-up and ensure that every switched node remains within the specified 4.5 V to 20 V single-supply or 10 V to 30 V dual-supply limits. Use the manufacturer pinout and truth table for the exact DY package rather than assuming that a multiplexer's address and enable functions are present. This product data consolidates manufacturer specifications, current distributor availability, package details, and verified drop-in replacement information. It also provides application guidance and selection trade-offs that help engineers move from the datasheet to a production-ready PCB design.
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.
DG442DJ+ - Quad SPST 85Ω Analog Switch | Vishay Intertechnology
The Vishay Intertechnology DG442DJ+ is a monolithic quad SPST CMOS analog switch with four independent 1:1 circuits, an 85 Ω on-resistance, and a 16-pin PDIP package. It is designed for analog signal routing where four independently controlled switches are required within one package. The device uses CMOS-compatible control inputs and supports analog switching across signal ranges referenced in the manufacturer documentation. An analog switch is a semiconductor-controlled routing component that connects or disconnects analog signal paths. The DG442DJ belongs to the monolithic CMOS analog-switch hierarchy, where SPST describes one switch path per circuit and quad describes four independent channels. Unlike a multiplexer, each DG442 channel can operate independently rather than sharing a common internal signal path. Key features include four independent SPST switch circuits, an 85 Ω on-resistance, and 1:1 signal routing. The package is a 16-pin PDIP, allowing through-hole assembly and straightforward prototyping. The available product information identifies the DG441 and DG442 families as drop-in replacements for the popular DG201A and DG202 series, which helps engineers evaluate PCB reuse and upgrade paths. Internally, the DG442 uses a monolithic CMOS implementation to provide consistent switching behavior across the four channels. Each channel has a corresponding control input and common ground and power connections. Designers should consult the manufacturer datasheet for the exact control truth table, input and supply limits, switching timing, off-impedance, leakage, and absolute maximum ratings before finalizing a design. Typical uses include analog test systems, instrumentation, signal-conditioning modules, data-acquisition equipment, and industrial control circuits where multiple analog paths must be routed independently. Its four-channel arrangement can reduce component count when a design needs four SPST functions rather than four separate single switch packages. The primary design consideration is confirming that the DG442DJ+ control polarity and timing satisfy the receiving circuit. Because the verified source data does not provide a complete pin table, engineers should verify every connection against the manufacturer datasheet before PCB release. Input signals must also remain within the specified voltage limits. This page consolidates verified distributor information, compatible replacement data, package details, selection guidance, and practical design notes into one engineering-focused resource for the DG442DJ+.
DG444CJ+ - 4-Channel SPST Analog Switch | Analog Devices
The Analog Devices DG444CJ+ is an improved quad SPST analog switch with four independently controlled channels, an 85 ohm maximum on-resistance, and a 16-pin PDIP package. It is designed for low-power analog signal routing and supports positive supplies from 10 V to 30 V and dual supplies from ±4.5 V to ±20 V according to the manufacturer datasheet. The normally closed configuration routes the selected external signal to the common terminal when the corresponding control input is low. An analog switch is a semiconductor device that connects or disconnects signal paths under digital control. The DG444CJ+ belongs to the analog switch hierarchy, where analog switches form part of interface ICs used for routing, sampling, test, measurement, and communication signals. Its quad-channel architecture allows four switches to share one IC while retaining individual control signals, reducing component count compared with four discrete single-channel switches. The redesigned DG444 family provides low on-resistance matching between switches of 4 ohm maximum and guaranteed on-resistance flatness over the signal range of 9 ohm maximum. These characteristics help minimize channel-to-channel resistance variation and distortion when multiple signals share the same switching network. The 85 ohm maximum on-resistance rating also makes the device suitable for circuits where moderate insertion resistance is acceptable. Each channel is configured as SPST, normally closed, and the switches conduct equally well in either signal direction. The symmetric behavior makes the DG444CJ+ useful when source and destination may swap roles, provided the designer accounts for the device's power dissipation and off-state isolation. The 16-pin PDIP package also favors through-hole prototyping, inspection, and socket-based assembly rather than compact surface-mount production. Typical uses include sample-and-hold systems, instrumentation, industrial control, communications equipment, test equipment, and audio or measurement signal routing. The DG444CJ+ is most appropriate when four independently controlled normally closed paths are required and an 85 ohm maximum on-resistance is sufficient for the application. For designs requiring lower resistance, smaller size, faster switching, or a different fault configuration, the system requirements should be checked against other analog-switch families rather than assuming pin compatibility. When laying out a design, keep sensitive signal paths short and provide adequate bypassing near the supply pins. Check the control-logic truth table, allowed input voltage range, and maximum switch current from the manufacturer datasheet. Because the device dissipates power as (VIN - VOUT) multiplied by current in the conducting state, analyze both channel and package heating at worst-case current. This page combines verified manufacturer and distributor information with pricing, package guidance, replacement analysis, and practical design notes to support component selection and PCB planning.
DG444DY+ - 85 Ohm Quad SPST CMOS Analog Switch | Maxim
The Maxim Integrated DG444DY+ is a quad SPST CMOS analog switch with a maximum on-resistance of 85 ohm, four independent switch channels, and a 250 ns maximum on-time. The device is packaged in a 16-pin SOIC and uses TTL- and CMOS-compatible control inputs. Its four switches can route one analog or digital signal independently in either direction. An analog switch is a solid-state routing element that connects or disconnects signal paths under digital control. The DG444 belongs to the interface IC hierarchy, where analog switches sit above multiplexers, demultiplexers, and general-purpose signal-routing components. Unlike a mechanical relay, the DG444DY+ has no moving contacts, allowing fast switching, low power consumption, and compact integration into analog measurement, test, and communication equipment. Important DG444DY+ features include low on-resistance, low leakage, low power consumption, and low charge injection. According to the Vishay DG444 data sheet, the DG444 and DG445 families use a high-voltage silicon-gate process, while an epitaxial layer helps prevent latchup. The redesigned DG444 series also specifies on-resistance matching between switches of 4 ohm maximum and guaranteed on-resistance flatness of 9 ohm maximum over the signal range. The DG444DY+ contains four independent single-pole, single-throw switches. Each channel can conduct signal flow in either direction, allowing the same device to implement signal selection, source multiplexing, sample-and-hold routing, test-point isolation, and programmable gain-stage feedback control. Its monolithic CMOS construction supports compact, low-power designs, while the 16-pin SOIC package allows conventional surface-mount assembly and straightforward PCB footprint matching with compatible quad-SPST switch families. Typical uses include multimeter and oscilloscope input routing, automated test equipment, audio path selection, data acquisition systems, and instrumentation where several analog nodes must connect to a shared measurement path. The DG444DY+ is also appropriate where TTL-compatible or CMOS-compatible control levels are available and where switching speed and low off leakage are more important than very low on-resistance. When laying out a DG444DY+ circuit, place the device close to the switched signal nodes to minimize parasitic capacitance and coupling. Keep control traces away from sensitive analog conductors, use a defined return path for digital control signals, and confirm the actual signal amplitude against the device's absolute maximum ratings. Verify the exact power-supply and signal-range limits in the manufacturer data sheet before applying the part to a new design. This page combines verified manufacturer and distributor information, package-level drop-in alternatives, a parameter comparison, and practical PCB guidance. It is intended to help engineers evaluate the DG444DY+ faster than by reading the datasheet alone, while clearly separating documented values from specifications that still require confirmation.
DG445DJ+ - Quad SPST 85 Ohm Analog Switch | Analog Devices
The Analog Devices DG445DJ+ is a production, quad, single-pole single-throw CMOS analog switch with four independent normally open switches, an 85 ohm on-resistance rating, TTL- and CMOS-compatible control inputs, and a 16-pin PDIP package. The device is designed for low-voltage signal routing where four separately controlled analog paths must be switched without introducing substantial resistance or signal degradation. An analog switch is a semiconductor device that uses digital control signals to connect or disconnect an analog signal path. The DG445DJ+ belongs to the interface-IC hierarchy as a monolithic CMOS analog switch. Its four independent SPST channels provide normally open behavior, allowing a control signal to establish a signal connection while the open state provides high isolation between routed nodes. The verified manufacturer information identifies the DG445 family as an improved replacement for the DG211 and DG212 series. It provides four independent switches, TTL- and CMOS-compatible digital inputs, on-resistance matching of 4 ohms maximum between switches, and guaranteed on-resistance flatness of 9 ohms maximum across the signal range. The distributor listing specifies an 85 ohm nominal on-resistance, while a legacy data listing reports 50 ohms; the 85 ohm figure is used for the DG445DJ+ procurement description. The improved matching and flatness specifications are significant when several DG445DJ+ channels carry signals that must present similar resistance to downstream circuitry. Flatness limits resistance variation as the analog voltage changes, helping preserve gain and timing consistency across the signal range. The monolithic CMOS implementation supports compact analog-routing designs without requiring four discrete mechanical or relay elements. Typical uses include battery-powered measurement systems, automated test equipment, multiplexed sensor interfaces, audio routing, sample-and-hold circuits, and communication equipment. Each of the four switches has its own control input, allowing independent routing decisions rather than requiring a shared address decoder. The 16-pin PDIP package is suitable for prototyping, legacy industrial equipment, and through-hole assemblies. The principal design consideration is that this older PDIP device is identified as RoHS non-compliant and contains lead. It should therefore be selected for compatible legacy or through-hole applications where regulatory and thermal requirements permit, rather than assumed suitable for new lead-free production without formal review. This product record combines verified manufacturer and distributor specifications, lifecycle information, pricing, package details, and practical selection guidance. It also distinguishes confirmed drop-in information from unsupported substitute claims, helping engineers avoid cross-package parts that would require PCB changes.
DG445DY+ - Quad SPST Analog Switch | Maxim Integrated
Maxim Integrated DG445DY+ is an improved quad SPST analog switch with four independent normally open channels, an 85 Ω on-resistance, and a 16-pin NSOIC package. It supports a 10 V to 30 V supply range, equivalent to ±4.5 V to ±20 V dual-supply operation, and provides TTL-compatible control inputs with specified 0.8 V and 2.4 V logic thresholds. An analog switch is a semiconductor device that routes analog or digital signals between circuit nodes under control of digital logic. The SPST designation means each of the four channels has one signal terminal and one switched terminal, while the normally open configuration leaves each channel disconnected until its control input is asserted. Within the broader hierarchy, DG445DY+ is an analog switch, interface IC, and discrete signal-routing component used between sensors, converters, test circuits, and signal-processing stages. Key improvements include on-resistance matching of 4 Ω maximum between switches and on-resistance flatness of 9 Ω maximum over the signal range. These characteristics help minimize channel-to-channel variation when the four switches must process comparable signals. The 85 Ω on-resistance reported by DigiKey and the 160 Ω figure shown by FindIC are retained as sourced observations, while the improved flatness specification is especially relevant to precision acquisition and test-equipment signal paths. The DG445 family was designed on a high-voltage silicon-gate CMOS process. Silicon-gate construction supports low leakage and reliable operation across wide supply voltages, while CMOS control inputs allow the device to interface with both TTL and CMOS logic systems. The manufacturer documentation identifies low signal error and distortion, reduced power-supply requirements, faster throughput, improved reliability, reduced pedestal errors, and simple interfacing as device benefits. Typical uses include audio switching, battery-powered systems, data acquisition, sample-and-hold circuits, telecommunications, automatic test equipment, and single-supply circuits. A four-channel SPST arrangement is particularly useful when several independent analog paths must be connected or isolated under digital control, such as selecting external sensors or routing instrumentation signals. Designers should verify the applicable supply configuration, control levels, and signal-voltage limits before layout. Keeping sensitive analog traces short and connecting the device ground pins to a low-impedance ground plane helps control return currents. Because on-resistance and matching are circuit-level errors, the switch should not be treated as an ideal zero-resistance path during signal-chain calculations. This page consolidates manufacturer information, distributor pricing, source-backed electrical characteristics, drop-in candidate evaluation, and practical selection guidance. It also distinguishes verified values from specifications that require confirmation, helping engineers compare DG445DY+ with its closest package-compatible alternatives without assuming unreported electrical data.
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.