Analog Devices Inc./Maxim Integrated

The MAX33072E/MAX33073E are a family of fault-protected RS-485/RS-422 transceivers with high ±65V protection for overvoltage conditions on the communication bus lines, ensuring robust protection in harsh industrial environments. Both devices have ±40V of common-mode range (CMR) within VCCH(+4.5V to +5.5V), exceeding the RS-485 standard of -7V to +12V, suitable for electrically noisy environments where different systems have shifting ground levels relative to each other. They also incorporate a high ESD protection circuit capable of protecting against ±40kV of ESD HBM (human body model) for driver outputs and receiver inputs (A and B data lines). Each device contains one driver and one receiver and operates over the +3V to +5.5V supply range, making it convenient for designers to use one part with either +3.3V or +5V supply voltages across multiple end equipment.These devices feature a polarity selection input (POL) that swaps the A and B data lines, allowing for software correction of cross-wired field cables.The MAX33072E features slew-rate-limited outputs for data rates up to 500kbps, while the MAX33073E is rated up to 2Mbps for applications requiring higher bandwidth. These transceivers are optimized for robust communication in noisy environments. A true failsafe feature guarantees a logic-high on the receiver output when the inputs are open or shorted. Driver outputs are protected against short-circuit conditions. The receivers feature a 1/8 unit load input impedance, allowing up to 256 transceivers on a bus. The MAX33072E/MAX33073E are available in 8-pin SOIC and operate over the -40°C to +125°C temperature range.ApplicationsAgriculture and Heavy MachineryElevator ControlHome and Building AutomationIndustrial Automation EquipmentMotion ControllersPower Supply and UPS

The MAX33072E/MAX33073E are a family of fault-protected RS-485/RS-422 transceivers with high ±65V protection for overvoltage conditions on the communication bus lines, ensuring robust protection in harsh industrial environments. Both devices have ±40V of common-mode range (CMR) within VCCH(+4.5V to +5.5V), exceeding the RS-485 standard of -7V to +12V, suitable for electrically noisy environments where different systems have shifting ground levels relative to each other. They also incorporate a high ESD protection circuit capable of protecting against ±40kV of ESD HBM (human body model) for driver outputs and receiver inputs (A and B data lines). Each device contains one driver and one receiver and operates over the +3V to +5.5V supply range, making it convenient for designers to use one part with either +3.3V or +5V supply voltages across multiple end equipment.These devices feature a polarity selection input (POL) that swaps the A and B data lines, allowing for software correction of cross-wired field cables.The MAX33072E features slew-rate-limited outputs for data rates up to 500kbps, while the MAX33073E is rated up to 2Mbps for applications requiring higher bandwidth. These transceivers are optimized for robust communication in noisy environments. A true failsafe feature guarantees a logic-high on the receiver output when the inputs are open or shorted. Driver outputs are protected against short-circuit conditions. The receivers feature a 1/8 unit load input impedance, allowing up to 256 transceivers on a bus. The MAX33072E/MAX33073E are available in 8-pin SOIC and operate over the -40°C to +125°C temperature range.ApplicationsAgriculture and Heavy MachineryElevator ControlHome and Building AutomationIndustrial Automation EquipmentMotion ControllersPower Supply and UPS

The MAX33070E/MAX33071E/MAX33074E are a family of fault-protected RS-485/RS-422 transceivers with high ±65V protection for overvoltage conditions on the communication bus lines, ensuring robust protection in harsh industrial environments. All devices have ±40V of common-mode range (CMR) within VCCH(+4.5V to +5.5V), exceeding the RS-485 standard of -7V to +12V, making them suitable for electrically noisy environments where different systems have shifting ground levels relative to each other. They also incorporate a high ESD protection circuit capable of protecting against ±40kV of ESD Human Body Model (HBM) for driver outputs and receiver inputs (A and B data lines). Each device contains one driver and one receiver and operates over the +3V to +5.5V supply range, making it convenient for designers to use one part with either +3.3V or +5Vsupply voltages across multiple end equipment.These devices feature a receiver enable active-low RE input that allows for a low-current shutdown state. The MAX33070E features slew-rate-limited outputs for data rates up to 500kbps. For applications requiring higher bandwidth, the MAX33071E is rated up to 2Mbps, and the MAX33074E up to 20Mbps. These transceivers are optimized for robust communication in noisy environments. A true fail-safe feature guarantees a logic-high on the receiver output when the inputs are open or shorted. Driver outputs are protected against short-circuit conditions. The receivers feature a 1/8-unit load input impedance, allowing up to 256 transceivers on a bus.The MAX33070E/MAX33071E are available in an 8-pin SO, and the MAX33074E is available in an 8-pin SO with an exposed pad. All three devices operate over the -40°C to +125°C temperature range.ApplicationsAgriculture and Heavy MachineryElevator ControlHome and Building AutomationIndustrial Automation EquipmentMotion ControllersPower Supply and UPS

The MAX33076E/MAX33078E are 20Mbps robust quad channel RS-485/RS-422 receivers with extended ±25V input common-mode operating range (CMR), ±65V fault tolerant inputs, and ±25kV ESD for harsh electrical environments. Both devices operate with a +3.3V or +5V supply rail.These devices feature an extended ±25V CMR, which ensures that the MAX33076E/MAX33078E reliably receive data when the ground planes between two nodes have large differences or when interference may couple onto the bus from motors or other electrical noise sources. The ±65V fault-tolerant A and B inputs ensure the device is protected when data lines are shorted to external power supplies. The ±25kV ESD tolerance provides added protection on the receiver inputs from ESD strikes during production or in the field.The MAX33076E/MAX33078E feature true fail-safe circuitry where the receiver output is set high when receiver inputs are open, shorted, or connected to a terminated transmission line with all drivers disabled.The receiver enable inputs (G andG) on the MAX33076E enable or disable all outputs. The MAX33076E is pin-compatible with the MAX3095/MAX3096 while offering improved performance and protection features.The EN12 and EN34 pins on the MAX33078E enable the Y1/Y2 and Y3/Y4 outputs, respectively. The MAX33078E is an upgrade to the MAX3093E/MAX3094E, offering improved performance and protection features.The MAX33076E and MAX33078E are available in 16- pin SOIC and QSOP packages and are rated over the entire -40°C to +125°C operating temperature range.ApplicationsMotor ControllersEncoder InterfacesServo Control Communication

The MAX3311E/MAX3313E are low-power, 5V EIA/TIA-232-compatible transceivers. All transmitter outputs and receiver inputs are protected to ±15kV using the Human Body Model, making these devices ideal for applications where more robust transceivers are required.Both devices have one transmitter and one receiver. The transmitters have a proprietary low-dropout transmitter output stage enabling RS-232-compatible operation from a +5V supply with a single inverting charge pump. These transceivers require only three 0.1µF capacitors and will run at data rates up to 460kbps while maintaining RS-232-compatible output levels.The MAX3311E features a 1µA shutdown mode. In shutdown the device turns off the charge pump, pulls V- to ground, and the transmitter output is disabled. The MAX3313E features an active-low INVALID output that asserts high when an active RS-232 cable signal is connected, signaling to the host that a peripheral is connected to the communication port.ApplicationsDigital Still CamerasGlobal Positioning Systems (GPS)Handy TerminalsPDAsPOSSet-Top BoxesTelecommunications

The MAX3311E/MAX3313E are low-power, 5V EIA/TIA-232-compatible transceivers. All transmitter outputs and receiver inputs are protected to ±15kV using the Human Body Model, making these devices ideal for applications where more robust transceivers are required.Both devices have one transmitter and one receiver. The transmitters have a proprietary low-dropout transmitter output stage enabling RS-232-compatible operation from a +5V supply with a single inverting charge pump. These transceivers require only three 0.1µF capacitors and will run at data rates up to 460kbps while maintaining RS-232-compatible output levels.The MAX3311E features a 1µA shutdown mode. In shutdown the device turns off the charge pump, pulls V- to ground, and the transmitter output is disabled. The MAX3313E features an active-low INVALID output that asserts high when an active RS-232 cable signal is connected, signaling to the host that a peripheral is connected to the communication port.ApplicationsDigital Still CamerasGlobal Positioning Systems (GPS)Handy TerminalsPDAsPOSSet-Top BoxesTelecommunications

The MAX3311E/MAX3313E are low-power, 5V EIA/TIA-232-compatible transceivers. All transmitter outputs and receiver inputs are protected to ±15kV using the Human Body Model, making these devices ideal for applications where more robust transceivers are required.Both devices have one transmitter and one receiver. The transmitters have a proprietary low-dropout transmitter output stage enabling RS-232-compatible operation from a +5V supply with a single inverting charge pump. These transceivers require only three 0.1µF capacitors and will run at data rates up to 460kbps while maintaining RS-232-compatible output levels.The MAX3311E features a 1µA shutdown mode. In shutdown the device turns off the charge pump, pulls V- to ground, and the transmitter output is disabled. The MAX3313E features an active-low INVALID output that asserts high when an active RS-232 cable signal is connected, signaling to the host that a peripheral is connected to the communication port.ApplicationsDigital Still CamerasGlobal Positioning Systems (GPS)Handy TerminalsPDAsPOSSet-Top BoxesTelecommunications