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MAX3241CAI+ - 3V-5.5V RS-232 Transceiver, 1Mbps | Analog Devices
The Analog Devices MAX3241CAI+ is a 3.0V to 5.5V low-power true RS-232 transceiver supporting data rates up to 1Mbps, packaged in a 28-pin SSOP (5.30 mm body width). The device integrates three line drivers and five line receivers in a single IC, with a dual charge-pump architecture that requires only four external 0.1uF capacitors, eliminating the need for a bipolar ±12V supply. A RS-232 transceiver is a type of line driver/receiver interface IC that converts logic-level (TTL/CMOS) signals to/from the bipolar ±5V to ±15V voltage swings required by the EIA/TIA-232-E standard. It belongs to the broader category of serial interface ICs (RS-232, RS-422, RS-485, UART transceivers), which sit between a microcontroller UART and the physical cable in point-to-point or multipoint data links. Charge-pump transceivers like the MAX3241 family simplify system design by generating the required transmitter output voltages internally from a single low-voltage rail. Key features include a 1Mbps guaranteed data rate (250kbps in the standard mode, up to 1Mbps with low-ESR capacitors), always-active extra receiver outputs for monitoring external peripherals, ±15kV ESD protection on transmitter outputs and receiver inputs (HBM), and an automatic shutdown mode that drops supply current to 1uA while keeping one receiver active. The always-on monitoring receivers (R1 and R2 extra outputs) make this part especially useful in portable and battery-powered designs that must wake the host on cable or peripheral activity. The MAX3241 uses a low-dropout transmitter output stage that maintains true RS-232-compliant output levels (±5V minimum) even when operating from a discharged battery, together with an internal dual charge pump that generates the positive and negative supplies from a single 3.0V to 5.5V rail. Four small 0.1uF external capacitors provide the pump energy storage, reducing BOM cost and board area versus ±12V solutions. Typical applications include battery-powered point-of-sale terminals, industrial handheld instrumentation, networking equipment (routers, switches), laptop and notebook serial ports, cellular phone data cables, and any embedded system requiring a TIA/EIA-232-E compliant UART link from a single low-voltage logic supply. When designing with this device, place the four 0.1uF charge-pump capacitors as close as possible to the IC pins and use a low-ESR ceramic type to achieve the 1Mbps data rate. Add bulk decoupling (0.1uF + 1uF) on VCC near the device to suppress supply noise. Verify that downstream receivers tolerate the MAX3241's ±5V minimum output swing if your cable is unusually long. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MAX3243CUI+ - 3-5.5V 250kbps RS-232 Transceiver | Analog Devices
The Analog Devices MAX3243CUI+ is a 3/5-channel RS-232 transceiver with a 3 V to 5.5 V supply, 250 kbps signaling capability, and ±15 kV ESD protection, housed in a 28-pin TSSOP package. It combines three RS-232 drivers and five receivers with AutoShutdown, which reduces supply current to approximately 1 µA when no valid receiver signal is present. The listed 1 k-unit manufacturer price starts at $3.43 as of 2026-10-30. An RS-232 transceiver is a serial-interface semiconductor that converts logic-level signals into RS-232 line levels and converts received line levels back into digital logic. The MAX3243 belongs to the interface IC hierarchy, where it combines drivers and receivers in one package. AutoShutdown is particularly useful for battery-powered equipment because it removes the need for a separate software-controlled power path when the serial link is idle or disconnected. The principal operating features include a 3.0 V to 5.5 V supply range, operation up to 250 kbps, integrated charge-pump circuitry, and ±15 kV ESD protection on the serial interface. The device supports both 3 V and 5 V systems, allowing the same transceiver architecture to serve industrial controls, embedded equipment, and legacy RS-232 ports. Its three drivers and five receivers provide flexible channel allocation for peripheral buses, service consoles, and point-to-point links. Technically, the MAX3243 family uses an efficient on-board power supply to generate the positive and negative voltages required by RS-232 transmitters from a single supply. The verified manufacturer page identifies the MAX3243 as production, with a product datasheet at Revision 10. The MAX3243CUI+ ordering code uses the compact TSSOP-28 package, making it suitable for space-constrained industrial-control and communications boards. Typical applications include industrial serial adapters, embedded instrumentation, POS terminals, diagnostic consoles, and communications equipment requiring both transmit and receive paths. It is especially useful where automatic power reduction is valuable, such as battery-operated test instruments or systems whose RS-232 port is only active during maintenance. The 250 kbps maximum data rate supports moderate-speed command and control traffic. When laying out the circuit, preserve the recommended charge-pump capacitor connections and place bypass capacitance close to the supply pins. Keep RS-232 traces away from sensitive analog signals, provide the required protection network if exposed to user cables, and verify the receiver polarity and logic thresholds of the connected equipment. The supplied data does not include a complete pin table, so pin assignments should be confirmed against the manufacturer datasheet before layout release. This page combines the verified manufacturer specifications, distributor pricing, package information, supported drop-in candidates, comparison parameters, and practical RS-232 design guidance. It is intended to help engineers identify the correct replacement and plan power, layout, and signal-integrity requirements without relying on distributor summaries alone.
MAX3243CWI+ - 3/5 RS-232 Transceiver | Analog Devices
Analog Devices MAX3243CWI+ is a 3V-to-5.5V RS-232 transceiver with three line drivers, five line receivers, a 250 kbps data rate, and ±15 kV HBM ESD protection, housed in a 28-pin SOIC package. The device supports both 3V and 5V system rails and includes AutoShutdown, which disables the onboard charge pump and drivers when no valid receiver signal is present. An RS-232 transceiver is an interface IC that converts logic-level digital signals into RS-232 line levels and converts received RS-232 signals back into CMOS-compatible logic. This bidirectional level-conversion function places the MAX3243CWI+ between a host controller or data-processing equipment and an external serial port. Its three-driver, five-receiver arrangement is particularly suited to DE-9 serial interfaces and equipment requiring additional receive channels for status, handshake, or ring-detection signals. Key features include a 3V-to-5.5V operating range, 250 kbps maximum signaling rate, and ±15 kV ESD protection on serial-port connections. AutoShutdown helps reduce power consumption when the connected RS-232 port has no valid activity. The INVALID output remains available to report the status of received RS-232 signals, while ROUT2B provides a second receiver output for applications that need an additional input or status function. The MAX3243CWI+ uses Maxim Integrated’s RS-232 interface architecture and is offered in a 28-pin SOIC package. Its driver and receiver organization supports asymmetric port requirements without requiring five separate line-driver circuits. The 3V-to-5.5V supply range makes the device usable in both legacy 5V serial equipment and modern embedded systems operating from lower-voltage rails. Typical applications include DE-9 RS-232 ports, industrial serial adapters, point-of-sale equipment, instrumentation, data acquisition systems, and embedded control systems. In a typical design, logic-level TX and RX signals connect to the transceiver, while the protected driver outputs connect through the external DB-9 connector or another RS-232 connector. Additional receiver inputs can monitor modem-control or equipment-status lines. Designers should account for the voltage drop across the RS-232 line, use protection appropriate to the connector environment, and maintain the supply and ground connections required by the manufacturer interface guidance. The AutoShutdown behavior should also be verified against the system’s power-management strategy, especially when a disconnected or idle connector must be recognized reliably. This page consolidates verified manufacturer and distributor information, package-level alternatives, technical comparisons, and practical design guidance for engineers evaluating the MAX3243CWI+ in 3V-to-5.5V RS-232 interface designs.
MAX3243EAI+ - 3/5 RS-232 Transceiver, 235kbps | Maxim
The Maxim Integrated MAX3243EAI+ is a 3.3 V/5 V RS-232 transceiver with three line drivers, five line receivers, and a maximum data rate of 235 kbps, housed in a 28-pin SSOP package. It operates from +3 V to +5.5 V, supports automatic shutdown and wake-up, and provides enhanced electrostatic-discharge protection for connection pins. An RS-232 transceiver is an interface IC that converts between logic-level UART signals and the voltage-domain signals used by RS-232 equipment. The MAX3243 belongs to the broader EIA/TIA-232 interface family, which sits between serial communication controllers and external D-sub connectors or other RS-232 links. Its three transmitters support multiple outbound channels, while five receivers provide additional inbound or monitoring channels. The MAX3243EAI+ uses a dual charge-pump circuit to generate the voltage levels required by RS-232 transmitters. According to the Analog Devices MAX3243 data sheet, the MAX3243E family provides ±15 kV HBM and air-gap ESD protection and ±8 kV contact-discharge protection. Automatic shutdown reduces supply current to 1 µA when active communication is not required, while wake-up operation helps lower system power consumption. The device supports operation from +3 V to +5.5 V, making it suitable for systems using either 3.3 V or 5 V digital logic. Its stated maximum data rate of 235 kbps exceeds the throughput commonly required by conventional asynchronous serial ports. The 28-pin SSOP package provides a compact surface-mount solution, although the relatively long lead span and limited pin count should be considered in high-density layouts. Typical applications include multi-channel RS-232 links in industrial controllers, test equipment, point-of-sale terminals, data acquisition systems, instrumentation, and external serial-port expansion. The three drivers are useful where one controller must connect to multiple peripheral ports, while the five receivers can handle return channels or multiple incoming data sources. PCB implementation should place charge-pump capacitors and the interface-side protection network close to the device, keep RS-232 traces away from sensitive logic, and provide suitable return paths for surge current. The unused driver outputs and receiver inputs must be terminated according to the manufacturer's data sheet rather than left floating. This page consolidates verified manufacturer and distributor information, price context, pin-package details, practical interface-design guidance, and candid replacement analysis. It also distinguishes electrically similar MAX3243 variants that are not true same-package drop-ins, helping engineers avoid assumptions based only on the MAX3243 family name.
MAX3243ECAI+ - 3V/5V 250kbps RS-232 Transceiver
The Maxim Integrated MAX3243ECAI+ is a 3V-powered EIA/TIA-232 and V.28/V.24 communications interface with three drivers, five receivers, automatic shutdown/wakeup, high data-rate operation, and enhanced electrostatic-discharge protection. It operates from 3.0V to 5.5V and supports data rates up to 250kbps. The device is packaged in a 28-pin SSOP, making it suitable for compact RS-232 equipment designs. An RS-232 transceiver is an interface IC that converts between digital logic-level signals and RS-232 voltage levels. The MAX3243 family belongs to the interface-IC hierarchy and is used where a UART or other digital controller must communicate with a PC, terminal, modem, or other RS-232 equipment. Its multiple drivers and receivers support both standard serial links and additional status or control signals. Key features include automatic shutdown when no valid receiver signal is detected, automatic wakeup when a valid signal returns, and enhanced ESD protection. The manufacturer describes protection to ±15kV using the air-gap discharge test and ±8kV using the contact-discharge test. The available data also identifies the device as a 3/5 transceiver with a 250kbps data-rate capability. The MAX3243E architecture is intended for low-power serial-interface systems. Automatic shutdown can reduce supply consumption when the RS-232 connection is idle, while wakeup allows the interface to reactivate without a continuously active supply state. The device is designed for 3V-powered equipment where RS-232 voltage generation and signal conditioning are required despite low logic supply voltage. Typical applications include PC serial-port interfaces, industrial control equipment, data acquisition systems, point-of-sale terminals, and embedded serial adapters. The combination of multiple drivers, five receivers, automatic power management, and ESD protection supports both data transfer and hardware status signaling in compact embedded systems. Designers should verify the exact pin assignments, external charge-pump capacitors, logic levels, and RS-232 line requirements against the manufacturer datasheet. PCB layout should keep the interface traces short, provide suitable return paths, and account for the elevated RS-232 voltage levels at the driver outputs.
MAX3243EUI+ - 3.3V/5V RS-232 Transceiver | Analog Devices
Analog Devices MAX3243EUI+ is a +3V to +5.5V RS-232 transceiver with three drivers and three receivers, automatic shutdown and wake-up, full-duplex operation, and enhanced electrostatic-discharge protection in a 28-pin TSSOP package. According to the manufacturer product page, the MAX3243 family is in production and supports both 3V and 5V supply operation. An RS-232 transceiver is a serial-interface integrated circuit that converts between TTL/CMOS logic levels and the voltage-defined RS-232 signal levels used by computer serial ports and industrial equipment. The MAX3243EUI+ belongs to the interface-IC hierarchy: RS-232 transceiver → multi-channel serial-interface transceiver → communications interface IC → semiconductor. Automatic shutdown provides a practical power-management advantage when no valid receiver activity is detected. Key features include a 3V to 5.5V supply range, three transmit channels, three receive channels, AutoShutdown operation, enhanced ESD protection, and a 28-pin TSSOP package. The MAX3243E family description identifies EIA/TIA-232 and V.28/V.24 support, automatic shutdown and wake-up behavior, high data-rate capability, and enhanced electrostatic-discharge protection. These characteristics suit systems that must translate between modern digital logic and legacy RS-232 ports. The MAX3243EUI+ integrates both interface directions on one device, reducing the component count required for a multi-channel serial port. Its automatic shutdown function can reduce power consumption when the remote system is disconnected or inactive. The 28-pin TSSOP is a surface-mount package that supports conventional PCB assembly, although exact pin assignments, capacitor values, and electrical limits must be confirmed from the manufacturer datasheet before layout or replacement qualification. Typical uses include industrial control equipment, data-acquisition systems, configuration ports, service interfaces, and embedded systems that need to communicate with RS-232 peripherals. It is also appropriate for battery-powered or portable equipment where automatic shutdown can conserve energy during idle periods. In those applications, logic-level compatibility, ESD protection, and cable-receiver behavior are as important as the nominal data rate. When designing around the MAX3243EUI+, verify the complete supply range, operating temperature, absolute maximum ratings, driver slew rate, receiver thresholds, and required external charge-pump capacitors against the manufacturer datasheet. Place the interface IC close to the connector, route driver outputs toward the protected connector side, and provide a low-impedance ground return so common-mode noise does not corrupt receiver inputs. This page consolidates verified manufacturer and distributor information with practical selection guidance, parameter comparisons, and engineering-oriented interface design notes. It also distinguishes verified drop-in candidates from unresolved alternatives, helping engineers reduce sourcing risk while retaining the required 28-pin TSSOP footprint.
MAX3243EUU - 3V to 5.5V RS-232 Transceiver | Analog Devices
The Analog Devices MAX3243EUU is a multichannel RS-232 line driver and receiver operating from a 3V to 5.5V supply, with data rates up to 250 kbps and integrated protection for RS-232 transceiver applications. The MAX3243 family is designed for portable equipment, data acquisition systems, industrial controls, and battery-powered instruments where low supply voltage, automatic shutdown, and compact serial-interface integration are important. An RS-232 transceiver is a bidirectional interface IC that converts logic-level UART signals into RS-232 line levels and converts received line-level signals back into CMOS-compatible digital signals. The MAX3243 combines multiple drivers and receivers with charge-pump circuitry for ±RS-232 voltage generation, reducing the external component count compared with discrete implementations. In the MAX3243EUU, this integration supports a low-voltage system architecture without requiring a separate 5V-only transceiver. Key electrical features include a 3V to 5.5V operating supply range, multichannel driver and receiver support, and operation up to 250 kbps. The Analog Devices product page identifies the MAX3243 as a production device with AutoShutdown capability, while the TI product listing describes the family as a 3V to 5.5V multichannel 250 kbps RS-232 line driver and receiver with plus-or-minus 15 kV ESD protection. The MAX3243EUU is supplied in a 28-pin small-outline package identified by distributor listings as TSSOP-28. It is appropriate for UART bridges, USB-to-serial adapters, embedded control boards, test equipment, and industrial serial controllers. Its low-voltage operation allows direct use with 3.3V microcontrollers, provided the logic levels and supply arrangement are verified against the device data sheet. Designers should confirm the exact package pinout, exposed-pad requirements, charge-pump capacitor values, and RS-232 line-driver loading limits before layout release. Decoupling capacitors should be placed close to the supply and ground pins, while the auto-shutdown and enable functions should be checked for compatibility with the host system's power-management sequence. This page combines the verified manufacturer and distributor references, pricing information available as of 2026-10-30, package information, and practical design guidance for engineers evaluating the MAX3243EUU in low-voltage serial-interface designs.
MAX3243IDW - 250kbps 3/5 RS-232 Transceiver | Texas Instruments
Texas Instruments MAX3243IDW is a 3- to 5.5-V multichannel RS-232 line driver and receiver capable of operation up to 250 kbps, with ±15 kV Human Body Model ESD protection on bus pins. The device integrates three drivers and five receivers in a 28-pin DW SOIC package, making it suitable for multichannel serial-interface equipment. An RS-232 transceiver is an interface IC that converts between single-ended logic-level signals and the bipolar voltage levels used by RS-232 equipment. It combines drivers, receivers, and often charge-pump voltage-generation circuitry into one package. This integrated approach reduces external component count and helps designers implement PC serial ports, industrial controls, data-collection equipment, and other systems that require reliable serial communication over longer cable runs. The MAX3243IDW operates from a 3 V to 5.5 V supply, allowing use in both 3.3 V and 5 V systems. Its 250 kbps signaling rate supports legacy serial-port data rates and other multichannel RS-232 links. Individual channel enable and shutdown functions provide control over transmitter and receiver activity, while AutoShutdown operation reduces supply current when no valid signal is present. The integrated charge pump supports standard RS-232 voltage generation without an external DC-DC converter. Electrical protection is a significant feature for connector-facing circuits. The MAX3243 provides ±15 kV ESD protection using the Human Body Model on RS-232 bus pins. Protection does not replace proper connector design, external surge protection, or controlled cable routing, but it adds a useful barrier against electrostatic discharge encountered during handling and field installation. Typical applications include DE-9 serial-port interfaces, industrial data acquisition, point-of-sale equipment, test and measurement systems, and embedded control systems that exchange commands or diagnostic data with RS-232 peripherals. The three-driver and five-receiver arrangement is especially useful when one controller must communicate with multiple external devices while maintaining independent transmit control. Design should account for charge-pump capacitor selection, local bypassing, unused-channel configuration, and the voltage-versus-current behavior of RS-232 drivers. Keep ground and signal routing consistent with the referenced design, place bypass and charge-pump components close to the device, and validate cable length and data rate together because both influence signal integrity and receiver margin. This product page combines the manufacturer's electrical and package information with practical interface guidance, application scenarios, parameter-level comparisons, and replacement criteria. It is intended to help engineers determine whether the MAX3243IDW meets voltage, channel-count, data-rate, ESD, package, and lifecycle requirements before committing it to an RS-232 design.
MAX3243IPW - 250kbps RS-232 Transceiver | Texas Instruments
The Texas Instruments MAX3243IPW is a 3- to 5.5-V multichannel RS-232 line driver and receiver rated for data rates up to 250 kbps, with three drivers and five receivers in a 28-pin TSSOP package. The device is designed for serial-port and other point-to-point RS-232 interfaces where several channels must share one low-voltage supply. An RS-232 transceiver is an interface IC that combines the electrical functions required to communicate between TTL or CMOS logic and RS-232 logic levels. Within the interface hierarchy, the MAX3243IPW is a multichannel RS-232 transceiver, also described as a line driver and receiver. Its driver channels convert logic-level inputs into RS-232-compatible signals, while its receiver channels convert incoming RS-232 signals into logic-level outputs. The MAX3243IPW operates from 3 V to 5.5 V, supports signaling up to 250 kbps, and includes ±15-kV ESD protection using the HBM test method on the serial-port connection pins. Three drivers and five receivers provide an asymmetric channel count suited to applications such as DE-9 serial connections. The manufacturer also describes AutoShutdown functionality and always-enabled ROUT2B and INVALID outputs for monitoring ring and valid-input status. The wider supply range allows the interface to operate from 3.3-V or 5-V system rails without a separate RS-232 transceiver supply. Multiple integrated drivers and receivers reduce the number of external interface ICs required in multi-channel equipment. Always-enabled status outputs can simplify supervision of modem or communications equipment, although their fixed operation should be checked against the system power-management architecture. Typical uses include legacy RS-232 serial ports, industrial control interfaces, data-acquisition equipment, point-of-sale terminals, and embedded systems requiring legacy peripheral connectivity. The MAX3243IPW can also complement a modern microcontroller or transceiver module when an existing enclosure or cable standard still exposes RS-232 signals. Careful signal-level, grounding, and ESD layout practices remain necessary in electrically noisy environments. For PCB design, place the device near the connector or protected interface entry point and route protected RS-232 traces away from sensitive analog and clock circuitry. Confirm that the exposed connector pins have appropriate surge and ESD protection because the integrated ±15-kV HBM rating does not eliminate the need for an engineered external protection strategy. Follow the manufacturer pin-description and layout guidance for decoupling, grounding, and protection-network placement. This product reference combines the MAX3243IPW electrical identity, verified package information, channel configuration, interface capabilities, and application-oriented engineering guidance. It also provides a framework for checking pin-compatible alternatives, understanding the limits of interface protection, and selecting between integrated transceivers, system transceivers, and newer communication architectures.
MAX3245ECAI+ - 1Mbps 3/5 RS-232 Transceiver | Analog Devices
The Analog Devices MAX3245ECAI+ is a 3.0V-to-5.5V, ±15kV ESD-protected RS-232 transceiver with three drivers, five receivers, 1Mbps data rate, 1uA shutdown current, and a 28-pin SSOP package. An RS-232 transceiver is an interface IC that converts between complementary logic-level signals and the voltage-defined bipolar signaling used by RS-232 equipment. It belongs to the transceiver class within interface ICs, bridging UART, microcomputer, industrial-control, and communications systems. The MAX3245 family supports EIA/TIA-232 and V.28/V.24 communication interfaces while reducing the number of external components needed for a practical RS-232 port. Three driver channels and five receiver channels support multi-drop or multi-peripheral point-to-point arrangements. Its 1Mbps maximum data rate is suitable for moderate-speed serial links, and the ±15kV ESD rating adds protection for exposed connector-facing circuitry. The 3.0V-to-5.5V supply range accommodates both 3.3V and 5V system rails. AutoShutdown Plus provides low-power behavior for systems where power consumption matters during idle periods. The MAX3245ECAI+ uses the MAX3245E device family and is identified with the E suffix, 28-pin SSOP package, and industrial-temperature ordering code in the supplied distributor data. The verified distributor listings describe the device as a full RS-232 transceiver with three drivers and five receivers. The exact internal channel pinout, electrical limits, charge-pump capacitor requirements, and package dimensions require confirmation from the manufacturer datasheet before layout or replacement approval. Typical uses include USB-to-RS-232 adapters, industrial serial consoles, instrumentation, data acquisition, embedded control boards, and service ports. In each case, the transceiver provides the physical-layer conversion while the attached UART or processor handles framing and protocol software. The 1uA shutdown specification can reduce standby current when the port is not actively used, provided the AutoShutdown Plus control and external network are configured correctly. For PCB design, place the device close to the RS-232 connector, route driver and receiver traces away from sensitive analog or high-speed digital signals, and verify the required external charge-pump capacitors against the datasheet. This page combines verified distributor specifications, source traceability, replacement analysis, and application guidance; it does not invent unprovided pin assignments or pricing values.
MAX33040EAKA+ - +3.3V 5Mbps CAN Transceiver, ±40V Fault, SOT-23-8 | Maxim Integrated
The Maxim Integrated MAX33040EAKA+ is a +3.3V control area network (CAN) bus transceiver with integrated overvoltage and ESD protection, housed in an 8-pin SOT-23 package. It supports data rates up to 5 Mbps, offers ±40V fault protection on the CANH and CANL bus pins, ±40 kV ESD HBM protection, and ±25V common-mode range, exceeding the ISO 11898-2 CAN physical-layer standard. A CAN transceiver (also called a CAN physical-layer device) sits between a microcontroller's CAN protocol controller and the differential CAN bus wires. It converts the microcontroller's digital TX/RX logic levels into the differential dominant/recessive voltages defined by ISO 11898-2, and simultaneously protects the sensitive MCU side from harsh automotive and industrial bus transients. Within the broader hierarchy, a CAN transceiver falls under Interface ICs > Wired Communication > CAN/LIN transceivers. Key features include a 3V to 3.6V single-supply operating range, low-current standby and silent modes, hot-plug capability, slope control for limited-data-rate applications, and TXD dominant-timeout to prevent bus lockup from a stuck dominant node. The SOT-23-8 footprint occupies roughly 9 mm² of board area, making it one of the smallest isolated-fault CAN transceivers available. Internally the device combines a differential CAN driver/receiver pair with TVS-based fault clamps and an ESD cell rated to ±40 kV HBM. The wide ±25V CMR allows it to reject large ground-shift noise typical of long industrial cables and 12V/24V battery-powered equipment, while the ±40V fault tolerance survives load-dump and jump-start events far beyond the ISO 7637 pulse ratings. Typical applications include building automation gateways, industrial drones and motor controllers, factory-floor sensors, instrumentation data links, service and educational robots, and any 3.3V MCU-based system that must communicate reliably over CAN. Its small SOT-23-8 package and integrated ±40V/±40kV protection eliminate the need for external TVS diodes, common-mode chokes, and isolation in many designs. When designing with the MAX33040EAKA+, observe the bus-termination requirement of two 120 Ω resistors (one at each end of the bus) and place a 100 nF decoupling capacitor as close as possible to the VCC pin. The SLP pin can be tied high for low-speed, slope-controlled operation or left open for normal high-speed mode.
MAX3387EEUG+ - 3V RS-232 Transceiver, 250kbps, ±15kV ESD | Maxim
The Analog Devices (formerly Maxim Integrated) MAX3387EEUG+ is a 3V-powered, ±15kV ESD-protected RS-232 transceiver with three drivers and three receivers, housed in a 24-pin TSSOP package. It supports data rates up to 250 kbps, complies with EIA/TIA-232 and V.28/V.24 standards, and integrates a charge pump to generate the ±5.5V RS-232 levels from a single 3.0V to 5.5V supply. The 'E' suffix indicates the enhanced AutoShutdown Plus mode that reduces supply current to 1 µA typical when no valid cable is connected. An RS-232 transceiver is a line driver/receiver IC that translates between TTL/CMOS logic levels (0-3.3V) on the UART side and the bipolar ±5V to ±15V signal levels required by the legacy RS-232 standard on the cable side. RS-232 transceivers sit at the physical layer of serial communication and remain ubiquitous in point-of-sale terminals, industrial equipment, legacy PC peripherals, and embedded debug ports despite being superseded by USB and Ethernet in many consumer applications. Key features include ±15kV ESD protection on the RS-232 bus pins (IEC 61000-4-2 Air Gap), an integrated dual charge pump requiring only four small 0.1µF external capacitors, and an AutoShutdown Plus mode that automatically disables the charge pump and receivers when the cable is disconnected. The device operates from a single 3.0V to 5.5V supply and includes three active-low INVALID outputs for system monitoring. The MAX3387EEUG+ uses a proprietary low-power charge pump architecture combined with Maxim's AutoShutdown Plus logic, achieving 1 µA typical supply current in shutdown while still supporting 250 kbps data rates. The dual charge pump generates +7V and -7V from the input rail using only flying capacitors, eliminating the need for a ±12V system supply. Typical applications include PDA and cell phone data cables, palmtop computers, battery-powered equipment, embedded industrial controllers, GPS receivers, and point-of-sale (POS) terminals. Its single-supply 3V operation makes it ideal for portable, battery-powered designs where ±12V rails are unavailable. When designing with this device, place the four charge-pump capacitors (typically 0.1µF ceramic) as close as possible to the C1+, C1-, C2+, and V+ pins. Ensure the ESD-protected bus traces are kept short and routed away from sensitive analog signals. For systems that can tolerate a slightly larger TSSOP, the MAX3387ECUG+ offers a commercial 0°C to +70°C temperature range as an alternative. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
MAX338CEE+ - 8:1 Low-Leakage CMOS Analog Mux | Analog Devices
The Analog Devices MAX338CEE+ is an 8-channel, low-leakage CMOS analog multiplexer with a 1 Circuit 8:1 configuration, 400 ohm on-resistance, and a 16-QSOP package. According to the manufacturer product data, the device connects one of eight inputs to a common output, making it suitable for routing external analog signals in test, measurement, control, and communication systems. The verified listing identifies a single +4.5 V to +30 V supply or dual supplies of ±4.5 V to ±20 V. An analog multiplexer is an analog switch device that selects one signal path among multiple inputs and connects it to a shared output. The MAX338 family is positioned as a low-leakage CMOS analog multiplexer family, with the MAX338 providing eight channels and the related MAX339 providing dual four-channel operation. This hierarchy places the part within analog switches, multiplexers, interface ICs, and broader signal-routing systems. The verified MAX338CEE+ data specifies 400 ohm on-resistance and an 8:1 topology. Analog Devices identifies the MAX338 and MAX339 as pin-compatible upgrades for the industry-standard DG508A and DG509A families. The low-leakage characteristic is useful when source impedance is high, because leakage through an inactive channel can otherwise create measurement errors or interfere with small-signal nodes. The device also supports both single-supply and dual-supply operation, allowing integration into systems with different reference and bias arrangements. Typical uses include data acquisition, automated test equipment, sensor multiplexing, analog signal routing, sample-and-hold systems, and industrial control interfaces. The 8:1 arrangement reduces the number of physical connections required when a controller must inspect several analog sources through one downstream converter or measurement channel. Designers should verify signal amplitude, supply polarity, control logic, switching timing, and package footprint against their particular system before production use. A key design consideration is keeping unused analog inputs, control pins, and supply rails within the manufacturer's specified operating limits. PCB routing should minimize trace resistance and capacitance around high-impedance signal nodes, while grounding and decoupling should follow the datasheet recommendations. This page summarizes verified product, distributor, and manufacturer information; application suitability still depends on the complete electrical specification set.
MAX338CPE+ - 8:1 CMOS Analog Multiplexer | Analog Devices
The Analog Devices MAX338CPE+ is a single 8:1 CMOS analog multiplexer with 16-pin PDIP packaging, a 400 ohm on-resistance listing, and operation from a single 4.5 V to 30 V supply. It can also operate from dual supplies of ±4.5 V to ±20 V, making it suitable for instrumentation, industrial signal-routing, and test systems that require routing one of eight analog inputs to a common output. The chipdig listing also identifies the device as an 8-channel, low-leakage CMOS analog multiplexer with a 650 ohm resistance specification, so engineers should verify the applicable on-resistance condition against the manufacturer datasheet for their exact supply and temperature configuration. An analog multiplexer is a semiconductor switch that connects one selected input channel to a shared output. The MAX338CPE+ belongs to the CMOS analog switch and multiplexer hierarchy, where low-leakage CMOS construction supports high-impedance measurement circuits. Its 8:1 configuration reduces the number of physical input connections required when a controller must inspect several voltage, sensor, or diagnostic signals sequentially. The common output can then feed an ADC, measurement instrument, amplifier, or further signal-processing stage. Key features include eight selectable analog inputs, a single-ended common output, and a single 16-pin PDIP package. According to the Analog Devices MAX338 product page, the MAX338 and MAX339 devices are improved multiplexers that are pin-compatible upgrades for the industry-standard DG508A and DG509A families. The MAX338 family also supports both single and dual power-supply arrangements. These features distinguish it from multiplexer products that require one supply rail only or provide a different channel-to-pin arrangement. The MAX338CPE+ is a monolithic CMOS device intended to route low-frequency analog signals. Its channel count, supply range, and legacy DIP footprint are particularly useful when creating test fixtures, sensor interfaces, process-control equipment, or diagnostic systems that need to remain compatible with an existing 16-pin design. Because the common output carries the selected channel, the source impedance, signal amplitude, settling behavior, and downstream input range remain important system-level considerations. Typical uses include eight-way sensor selection, automated test equipment, industrial control signal routing, laboratory measurement systems, and instrumentation with multiple analog sources. The same-package DG508A and DG509A reference points are also useful when evaluating a design that was originally built around those established multiplexers. The MAX339 provides a related 4:1 dual-channel function rather than the MAX338's single 8:1 arrangement. When laying out the circuit, place the multiplexer close to the source and destination analog paths to minimize parasitic capacitance and resistance. Keep high-impedance traces short, provide a stable supply reference, and avoid excessive loading on the common output. Engineers should also confirm the exact channel pin assignments, control truth table, electrical limits, and operating-temperature grades in the manufacturer datasheet before treating the part as a production drop-in replacement. This page consolidates verified manufacturer and distributor information, supply configurations, package details, drop-in references, and practical selection guidance. It distinguishes documented pin-compatible alternatives from broader functional equivalents so procurement and engineering decisions can be made without confusing a multiplexer upgrade with a merely similar switch.
MAX338CSE+ - 8-Channel CMOS Analog Multiplexer | Maxim
The Maxim Integrated (now part of Analog Devices) MAX338CSE+ is a monolithic CMOS 8:1 analog multiplexer (also configurable as a dual 4:1) housed in a 16-pin narrow-body SOIC (NSOIC) package. It is built to route one of eight single-ended analog inputs to a common output under control of a 3-bit binary address, with on-resistance (RON) of 400 ohm typical over the full signal range. What is an analog multiplexer? An analog multiplexer (MUX) is a semiconductor switch that selects one of N analog input channels and routes it to a single output line, allowing a microcontroller or ADC to "scan" many sensors or signals through a single high-performance analog front-end. Multiplexers belong to the larger family of analog switches and are foundational building blocks in data acquisition, instrumentation, audio routing, and test equipment. The MAX338 operates from a single +4.5V to +30V supply (or dual ±4.5V to ±20V supplies), giving designers wide headroom for industrial 24V rails and ±15V instrumentation racks. Key features include low-leakage CMOS construction (typically < 1 nA at room temperature), break-before-make switching action that prevents momentary channel cross-connection, ESD protection on all logic and analog pins, and pin-compatibility with the industry-standard DG508A / DG509A, enabling direct drop-in upgrade to lower leakage. Logic inputs are TTL/CMOS compatible, simplifying interface to 3.3V and 5V microcontrollers. The MAX338 is fabricated on a low-leakage dielectric-isolation CMOS process that minimizes parasitic capacitance and channel-to-channel charge injection. Internal logic-level translation allows the digital inputs (A0, A1, A2, EN) to be driven directly from modern microcontrollers. The device is specified over the commercial 0C to +70C temperature range, making it well suited for indoor test equipment and laboratory instrumentation rather than industrial or automotive use; for extended temperature ranges see the MAX338E variant. Typical applications include data-acquisition front-ends scanning multiple thermocouples or analog sensors, audio signal routing in mixing consoles and broadcast equipment, automated test equipment (ATE) pin boards, instrumentation multiplexer and sample-and-hold front ends, industrial process control signal multiplexing, and medical patient-monitoring analog front ends. Designers choose it when they need more analog inputs than their ADC provides and require clean, low-leakage switching. When designing with this device, place 0.1uF decoupling capacitors close to V+ and V- (or GND for single-supply use) and keep analog traces short to minimize crosstalk. Ensure all unused digital and analog inputs are tied to a defined logic level (not left floating) to prevent channel-to-channel leakage paths. This page synthesizes distributor pricing, drop-in alternatives, application guidance, and pin-level design notes that complement the manufacturer datasheet.
MAX338EEE+ - 8:1 Low-Leakage CMOS Multiplexer | Maxim Integrated
The Maxim Integrated MAX338EEE+ is an 8:1 low-leakage CMOS analog multiplexer with 400 ohm on-resistance, supplied in a 16-QSOP surface-mount package. It connects one of eight inputs to a common output and operates from a single +4.5 V to +30 V supply or from dual ±4.5 V to ±20 V supplies. The MAX338 family also includes dual 4-channel configurations for designs requiring two independently selected signal paths. An analog multiplexer is a semiconductor switching network that routes one selected input to a shared output. The MAX338 belongs to the CMOS analog switch and multiplexer hierarchy, where low leakage is valuable when measuring weak, high-impedance signals or when unused channels must contribute little error to the measurement system. It also supports positive-only and split-supply analog systems, allowing the same switching architecture to serve instrumentation, test, measurement, and signal-routing equipment. Verified product information identifies one analog switch circuit, an 8:1 configuration, 400 ohm on-resistance, a 16-QSOP package, and low-leakage CMOS construction. The single-supply operating range is +4.5 V to +30 V, while dual-supply operation extends from ±4.5 V to ±20 V. These wide ranges permit use with legacy ±15 V analog circuits as well as modern single-rail systems. The EEE ordering code is associated with the industrial-grade 16-terminal surface-mount variant shown in distributor data. Because the MAX338 is a monolithic CMOS multiplexer, its internal channels share one common output. This architecture minimizes the number of external signal paths in a multi-source measurement design, although it does not provide simultaneous access to all eight channels. Selection should therefore be based on required channel count, acceptable on-resistance, leakage limit, supply topology, and the voltage and current levels present at each switched node. Detailed leakage, bandwidth, charge-injection, and switching-time figures were not supplied in the verified excerpts and must be taken from the manufacturer datasheet. Typical uses include automated test equipment, data-acquisition systems, sensor-signaling interfaces, process-control instrumentation, and laboratory measurement front ends. The device is particularly useful when many potential analog inputs must share one amplifier, converter, or data-acquisition channel. A suitable external circuit must also keep every input and output within the device's absolute maximum ratings during switching and fault conditions. Designers should verify control logic levels, input overvoltage tolerance, analog signal range, and break-before-make behavior against the full datasheet before layout release. Care should be taken around unused channels, signal-source impedance, and injected charge because low leakage alone does not guarantee low measurement error. Input filtering may be appropriate when fast transients or high-energy events are possible. This product record combines verified manufacturer and distributor information, explicit data-gap markers, same-family drop-in candidates, and practical selection guidance. It is intended to help engineers identify the correct 16-QSOP multiplexer while separating confirmed MAX338EEE+ attributes from parameters that still require direct datasheet verification.
MAX338EEE+T - 8:1 CMOS Analog Multiplexer | Maxim Integrated
Maxim Integrated MAX338EEE+T is an 8:1 single-ended CMOS analog multiplexer with 400 ohm on-resistance, housed in a 16-pin SSOP package. It selects one of eight analog inputs and connects the selected input to a common output. The device operates from a single +4.5 V to +30 V supply or from dual supplies of ±4.5 V to ±20 V, making it suitable for both positive-rail and split-supply instrumentation. An analog multiplexer is an interface IC that routes multiple analog signals through one common connection. The MAX338 belongs to the CMOS analog switch family, combining an 8:1 multiplexer with low-leakage switching elements. This allows a measurement system, data-acquisition circuit, or industrial control board to reduce the number of dedicated signal paths while preserving accurate analog connectivity. The principal features include an 8:1 configuration, 400 ohm on-resistance, and 20 pA leakage. Its address and enable controls are TTL-compatible from +0.8 V to +2.4 V across the specified temperature and supply ranges. These characteristics make the device useful when a system must select among sensor outputs, measurement inputs, or multiplexed test points without using a separate connector for every channel. The MAX338 is fabricated using Maxim's 44 V silicon-gate process, supporting operation with relatively wide supply voltages. The manufacturer identifies the MAX338 and MAX339 as improved, pin-compatible upgrades for the industry-standard DG508A and DG509A. Related MAX328 and MAX329 devices provide lower leakage and charge injection but higher on-resistance, creating a useful trade-off between leakage, switching transients, and signal resistance. Typical applications include data-acquisition systems, automated test equipment, industrial process monitoring, medical instrumentation, and communication-interface boards. An eight-channel bank can route eight analog sources into one amplifier, comparator, or converter input, while complementary address and enable logic controls the selected path. The industrial temperature grade also supports equipment intended for factory, laboratory, and communications environments. PCB design should place input and output traces away from high-speed digital paths, provide a stable ground reference, and observe the supply and decoupling requirements in the manufacturer datasheet. Because the multiplexer contributes 400 ohm of series resistance and switching transients, the receiving amplifier should have sufficiently high input impedance and bandwidth. Fault conditions should also be checked with the device disabled so that unused inputs cannot create unintended loading or signal transitions. This product page combines manufacturer specifications, package information, functional context, replacement guidance, and application-oriented design guidance. It helps engineers evaluate the MAX338EEE+T against same-package family options while accounting for channel configuration, on-resistance, leakage, and control-interface compatibility.
MAX338EPE+ - 8:1 400Ω Analog Multiplexer | Analog Devices
The Analog Devices MAX338EPE+ is an 8:1 single-ended CMOS analog multiplexer with 400 Ω on-resistance, 16-PDIP package, and 3-bit binary address control. The device connects one of eight inputs to a common output, making it suitable for analog signal routing in instrumentation, test systems, data acquisition, and embedded control equipment. Verified distributor data identifies the MAX338EPE+ as a single-circuit IC switch, 8:1 multiplexer, 400 Ω switch, and 16-pin DIP package; the Analog Devices product page describes the MAX338 family as a monolithic CMOS analog multiplexer. An analog multiplexer is a switching semiconductor that routes multiple analog inputs to one shared signal path under digital control. The MAX338/MAX339 family belongs to the analog switch and mux hierarchy, where the MAX338 provides one 8-channel single-ended path and the MAX339 provides dual 4-channel operation. Reducing the number of external signal connections can simplify wiring, board space, and system architecture when several sensors or measurement nodes must be selected by a controller. Key verified characteristics include an 8:1 configuration, 400 Ω on-resistance, 16-PDIP mechanical package, industrial temperature grade, and through-hole mounting. The MAX338EPE+ uses a 3-bit binary address to select one of eight inputs according to the manufacturer description. The verified snippets do not provide complete electrical limits such as supply voltage, leakage current, bandwidth, switch capacitance, or logic thresholds, so those values must be checked against the official manufacturer datasheet before final design release. The MAX338 family is positioned for low-leakage CMOS analog multiplexing. This makes the device relevant where a controller must scan multiple analog sources while preserving a common signal-conditioning path. The common output can feed a downstream amplifier, ADC, comparator, or measurement front end, while the selected address determines which input reaches that shared node. The exact input signal range and allowable switching conditions depend on parameters not included in the verified search snippets. Typical uses include multimeter and bench-test input selection, sensor-channel scanning, industrial control interfaces, data-acquisition systems, and embedded measurement modules. The 16-PDIP package favors through-hole prototyping and repair rather than compact surface-mount production. Because the available evidence does not provide full timing, power, and absolute-maximum ratings, engineers should use the official MAX338 datasheet and validate signal levels, supply rails, leakage, settling behavior, and control timing in the intended system. A key design consideration is ensuring that the downstream circuit can tolerate the mux's on-resistance, leakage, and charge injection. Signal-chain errors become more significant when source impedance is high, source-to-source voltage differences are large, or measurement accuracy is dominated by leakage. Route the selected output with short traces, maintain a stable reference and supply arrangement, and account for control-signal timing before sampling the analog node. This page combines verified distributor listings, the Analog Devices family description, package information, and practical selection guidance for engineers evaluating the MAX338EPE+. Pricing shown here is a reference as of 2026-10-21 and should be confirmed with the seller before purchase.
MAX338ESE+ - 8:1 Low-Leakage CMOS Analog Multiplexer | Maxim Integrated
The Maxim Integrated MAX338ESE+ is an 8-channel, low-leakage CMOS analog multiplexer packaged in a 16-pin narrow SOIC, with a maximum on-resistance of 400 ohm and a single-supply operating range of +4.5V to +30V (or dual supplies of +/-4.5V to +/-20V). The device is pin-compatible with the industry-standard DG508A and DG509A, and the ESE suffix denotes the extended temperature (-40C to +85C) 16-SOIC package. An analog multiplexer, or mux, is a semiconductor switch that routes one of several analog input channels to a shared output node under digital address control. It sits in the signal path between sensors, amplifiers and converters on one side and a single measurement or processing chain on the other. In the broader hierarchy, MAX338ESE+ belongs to the analog switch and multiplexer family, which in turn falls under interface ICs within integrated circuits. Reducing eight or sixteen analog wires down to one shared node is the core value proposition: fewer PCB traces, fewer connector pins, and a smaller multiplexing front end for data acquisition. Key features include a 400 ohm maximum on-resistance, low off-state leakage, and bidirectional analog channels, so the mux can be used as either a multiplexer or a demultiplexer. The device runs from a single +4.5V to +30V rail or from dual rails of +/-4.5V to +/-20V, which makes it suitable for both modern low-voltage instrumentation and legacy +/-15V or +/-12V analog test equipment. Fault-protected channel architecture improves robustness when inputs are over-driven or switched while signals are present. Internally the MAX338 uses CMOS transmission-gate switches driven by a 3-bit binary address for the 8-channel configuration, with the address decode and drive circuitry integrated on the same die. Because the channels are bidirectional, the same silicon supports demultiplexing applications where the single common node is driven and the eight channel nodes are the destinations. This symmetry is what allows one part number to cover both directions of analog routing. Typical applications include multi-channel data acquisition systems, automated test equipment, process-control instrumentation, multimeter and measurement front ends, battery and power-supply test systems, and data logger signal conditioning. Designers frequently use the MAX338 alongside RS-232 and RS-485 transceivers, parallel interface controllers, and precision amplifiers to build compact measurement instruments. The main design consideration is supply headroom and signal range: because the channels are bidirectional and the on-resistance is relatively high at 400 ohm, the device is best suited to high-impedance sources and precision measurement nodes rather than low-impedance power or current-carrying loads. Check the injected charge and off-state leakage against your accuracy budget. This page consolidates manufacturer documentation, distributor pricing and availability, pin-compatible drop-in alternatives, and practical layout guidance so engineers can evaluate a redesign or a second-source sourcing decision without pulling together five separate documents.
MAX338ESE+T - 8:1 CMOS Analog Multiplexer | Analog Devices
Analog Devices MAX338ESE+T is an 8:1 CMOS analog multiplexer with 400 ohm on-state resistance, housed in a 16-SOIC package. The device operates from a single +4.5 V to +30 V supply or from dual supplies of ±4.5 V to ±20 V, and its TTL-compatible address and enable inputs support both 5 V and high-voltage control environments. An analog multiplexer is an analog switch that routes one of several input signals to a shared output. The MAX338 belongs to the broader hierarchy of CMOS analog switch, multiplexer, interface IC, and semiconductor devices. Its eight channels are selected by a 3-bit binary address, while an enable input provides control over the selected connection. The device can therefore operate as a multiplexer or serve as a demultiplexer when the direction of signal routing is reversed. The MAX338/MAX339 family uses Maxim's 44 V silicon-gate process. This process supports operation from a single +4.5 V to +30 V supply or from dual ±4.5 V to ±20 V supplies. All address and enable controls remain TTL-compatible over their specified ranges, with a +0.8 V to +2.4 V input threshold identified for the control inputs. These characteristics make the multiplexer suitable for systems that must route wide-range analog signals. The 400 ohm on-state resistance identifies the MAX338 as a low-leakage CMOS multiplexer option intended for precision signal routing rather than high-current power switching. Its eight-to-one configuration reduces the number of physical connections required when several measured or conditioned signals must reach one processing channel. The common output architecture can also simplify board routing when a controller selects among sensor, instrument, or test-point signals. Typical applications include automated test equipment, data-acquisition systems, instrumentation, industrial control, and measurement setups. In each case, the 3-bit address bus identifies the desired channel and the enable input controls whether the common output is connected. The part is particularly useful where one analog input must be presented to a shared amplifier, converter, or measurement circuit without duplicating that downstream circuitry. A key design consideration is that the MAX338 is not a power switch. Its 400 ohm on-state resistance contributes signal attenuation and, when driving a finite load, can introduce an interaction between switch resistance and downstream input impedance. Layout should keep analog traces short, maintain a stable return path, and avoid placing high-current switching nodes near the selected input channels. This page consolidates the manufacturer's supply-range information, package details, functional characteristics, verified alternatives, and practical routing guidance into an engineering-focused guide for selecting and implementing the MAX338ESE+T in high-voltage analog multiplexing systems.
MAX338ETE+ - 8:1 400Ω Low-Leakage MUX | Maxim Integrated
The Maxim Integrated MAX338ETE+ is an 8:1 CMOS analog multiplexer with a 400 Ω on-resistance, low-leakage design, and a 16-pin TQFN package measuring 5 x 5 mm. According to the verified manufacturer product page, the MAX338 family is also described as an 8-channel or dual 4-channel low-leakage CMOS analog multiplexer. The device connects one of eight inputs to a common output using a 3-bit binary address, making it suitable for analog signal routing, measurement systems, instrumentation, and control equipment. An analog multiplexer, or analog mux, is an interface IC that routes one selected input channel to a shared output while blocking unselected channels. The MAX338 is a monolithic CMOS device intended for low-leakage signal-path applications. Its 8:1 configuration reduces the number of external signal lines when a system must select among multiple sensors, sources, or measurement channels. The 400 Ω specification is identified by the verified distributor listing, while additional electrical limits are not supplied in the retrieved data and are therefore not inferred here. The key verified feature set includes an 8:1 configuration, 400 Ω on-resistance, low-leakage operation, CMOS construction, and a 16-TQFN 5 x 5 mm package. The manufacturer describes the MAX338 family as connecting one of eight inputs to a common output through a 3-bit binary address. The single-pole, single-throw switching arrangement is represented by the 8:1 mux function, although detailed break-before-make and charge-injection values were not provided in the verified snippets. This part is useful when the system must share a downstream amplifier, ADC, DAC, or measurement block across several analog sources. It can help simplify routing in data-acquisition systems, sensor interfaces, automated test equipment, industrial controllers, and communication equipment. The low-leakage characteristic is particularly relevant when source impedance is high or when leakage can affect measurement accuracy, although the exact leakage limit should be confirmed in the manufacturer datasheet. The 16-TQFN package supports compact surface-mount layouts and requires careful PCB design around the exposed-pad and thermal requirements shown in the manufacturer documentation. A key design consideration is to verify signal voltage, supply voltage, input impedance, switching speed, and leakage against the complete MAX338 data sheet before production release. The verified distributor data confirms the part number and package, but does not provide a complete set of timing, current, or absolute-maximum ratings. This product page combines the verified manufacturer identification, distributor package data, pricing references, and application guidance. It also distinguishes confirmed parameters from values requiring datasheet confirmation, helping engineers make an informed sourcing decision without introducing unsupported specifications.
MAX338ETE+T - 8:1 CMOS Analog Multiplexer | Analog Devices
Analog Devices MAX338ETE+T is a single 8:1 CMOS analog multiplexer with 400 ohm on-resistance, housed in a 16-TQFN package with a 5 x 5 mm footprint. It operates from a single +4.5V to +30V supply or from dual supplies of ±4.5V to ±20V. Its TTL-compatible address and enable inputs accept logic levels from +0.8V to +2.4V across the specified temperature range. An analog multiplexer is an analog switch that routes one of several input signals to a shared output. A single 8:1 multiplexer provides eight selectable signal paths while reducing the number of external connections required between a source circuit and a measuring or processing circuit. The MAX338 is designed for precision signal-routing requirements and is fabricated using Maxim's 44V silicon-gate process. The primary function is an 8:1 single-ended analog switch. Its specified 400 ohm on-resistance makes it suitable for routing moderate-impedance sensor, measurement, or control signals rather than high-current loads. TTL-compatible control inputs simplify connection to 5V CMOS and TTL control logic. Operation from either a single positive supply or dual supplies also supports systems that use positive-only or bipolar analog rails. The MAX338 family is fabricated on a 44V silicon-gate process, providing the voltage headroom needed for the specified operating ranges. The manufacturer describes the MAX338 as a low-leakage CMOS analog multiplexer. Its improved multiplexing performance is intended to address both leakage and charge-injection considerations when selecting among analog sources, although exact device-level values should be confirmed in the manufacturer datasheet. Typical applications include sensor-signal selection, data-acquisition front ends, instrumentation, industrial control, test and measurement equipment, and analog signal routing in systems operating from a single +5V rail or higher single-supply rails. The eight-to-one configuration is especially useful when a system must select among multiple analog inputs before conversion, amplification, comparison, or further signal conditioning. When designing around the MAX338ETE+T, verify the exact supply limits, control-logic states, analog signal range, switch configuration, and exposed-pad connection against the manufacturer datasheet. Place the device so its thermal pad can dissipate heat as intended, keep sensitive analog routing away from fast-switching nodes, and account for off-state leakage and channel charge injection in high-impedance precision circuits. This product page consolidates the MAX338ETE+T manufacturer specifications, verified product identifiers, source links, application guidance, design considerations, and qualified replacement information. It is structured to help engineers move from datasheet lookup to footprint-compatible sourcing without treating different package or electrical variants as interchangeable.
MAX3483CPA+ - 3.3V 250kbps RS-485 Transceiver | Analog Devices
The Analog Devices MAX3483CPA+ is a 3.3V-powered, half-duplex RS-485/RS-422 transceiver with one driver and one receiver, a 250kbps data rate, and an 8-pin PDIP package. It is designed for low-power serial communications where slew-rate limiting reduces electromagnetic interference and helps control cable reflections. The verified product data identifies the device as a true RS-485/RS-422 transceiver with a 3.3V supply range, commercial through-hole packaging, and receiver hysteresis of 50mV. An RS-485 transceiver is an interface IC that converts digital logic-level signals into differential bus signals and converts received differential signals back into logic-level data. RS-485 is commonly used for longer-distance, noise-tolerant industrial communication, while RS-422 provides a related differential signaling method. The MAX3483CPA+ belongs to the interface IC hierarchy: transceiver, communication interface, interface IC, and semiconductor. Its key verified features include one transmitter and one receiver, 250kbps operation, 3.3V operation, half-duplex communication, 50mV receiver hysteresis, and slew-rate-limited signaling. These characteristics suit equipment interfaces, industrial control links, instrumentation, and embedded systems that require a compact, low-power differential bus interface. The slew-rate-limited driver is particularly useful when longer cables or imperfect terminations create reflection concerns. The MAX3483CPA+ uses a true differential bus architecture rather than a single-ended logic output. Designers must still provide the correct bus topology, cable termination, common-mode handling, grounding, and protection for their installation. The driver and receiver are combined in one package, but the bus interface still requires external application-specific components such as termination resistors, protection devices, and decoupling capacitors. Typical applications include industrial automation, factory equipment, building controls, process monitoring, data acquisition, and embedded communications. A half-duplex arrangement allows the same pair of conductors to transmit and receive, although software or hardware flow control is needed to prevent simultaneous transmission and reception. The verified sources identify the MAX3483 family as low-power 3.3V transceivers, but detailed electrical limits, absolute maximum ratings, and pin-level values are not supplied in the prompt. For a new design, verify the complete manufacturer datasheet for supply tolerance, input and output thresholds, driver current, receiver sensitivity, timing, temperature limits, and ESD information before committing to the PCB. This page distinguishes verified product facts from unavailable parameters and does not infer specifications that were not present in the supplied data.
MAX3483CSA+ - 3.3V 10Mbps RS-485 Transceiver | Maxim
The Analog Devices MAX3483CSA+ is a 3.3V-powered RS-485/RS-422 transceiver with one driver and one receiver, 10Mbps capability, and slew-rate limiting in an 8-SOIC package. It is designed for low-power, low-voltage serial communication systems where the physical layer must support both differential signaling standards. The verified distributor listings identify the device as a half-driver, half-receiver RS-422/RS-485 interface IC, while the manufacturer page describes the MAX3483 family as low-power transceivers for these protocols. An RS-485/RS-422 transceiver is an interface IC that converts logic-level digital signals into differential line signals and receives differential line signals back into logic-level data. The differential architecture helps reject common-mode noise and supports communication over longer cables or noisier industrial environments. The MAX3483 family combines a transmitter, receiver, and driver-enable control in one package, reducing the number of discrete interface components required in a point-to-point or multidrop RS-485 link. Key verified characteristics include 3.3V operation, operation to 10Mbps according to the manufacturer product-page description, one driver and one receiver per device, and slew-rate-limited operation. The manufacturer product page states that the MAX3483 slew-rate-limited drivers minimize electromagnetic interference and reduce reflections caused by improperly terminated cables. Distributor listings also classify the part as an RS-422/RS-485 interface IC and identify the 8-SOIC package. The device is suitable for industrial equipment, instrumentation, building automation, data acquisition, and embedded control links that require a compact differential interface. A driver-enable input supports direction control in half-duplex RS-485 systems, allowing the transmitter to be disabled when the bus is not being driven. The receiver can then monitor the bus without creating a line conflict. Exact pin names, electrical limits, receiver thresholds, propagation delays, and temperature ratings must be taken from the manufacturer datasheet before final circuit design. For layout, place the transceiver close to the connector and keep differential traces short, matched, and continuous. Provide the supply bypassing and protection required by the selected system-level interface requirements. RS-485 cables normally benefit from termination, biasing, and common-mode protection, but those network components should be designed from the actual cable length, topology, baud rate, and grounding arrangement. This product page consolidates verified manufacturer and distributor information, package classification, source links, and application guidance. It does not invent electrical values absent from the supplied data; consult the MAX3483CSA+ manufacturer datasheet for the complete pinout, timing, electrical characteristics, recommended operating conditions, and application circuit.