Analog Devices Inc./Maxim Integrated

The MAX2180A is a highly integrated AM/FM variable-gain low-noise amplifier ideal for use in automotive active antenna applications. The device features separate AM and FM signal paths, each providing 30dB of gain range, controlled by individual on-chip power detectors. The AM signal path covers a 148kHz to 30MHz input frequency range, while the FM signal path covers 65MHz to 162.5MHz.The device integrates a voltage regulator and pass transistor, allowing operation using battery voltages in the +6V to +24V range. On-chip thermal protection automatically limits junction temperatures during extreme thermal conditions.The device is available in a small, 4mm x 4mm, TQFN package and operates over the extended industrial temperature range (-40°C to +85°C).ApplicationsAutomotive Active Antenna

The MAX2181A is a highly integrated FM variable-gain low-noise amplifier ideal for use in automotive FM and FM-diversity active antenna applications. The device features an FM signal path, providing 30dB of gain range, controlled by an on-chip power detector. The FM signal path covers 76MHz to 162.5MHz.The device is available in a small, 3mm x 3mm, TQFN package and operates over the extended industrial temperature range (-40°C to +85°C).ApplicationsAutomotive Active AntennaAutomotive Head Unit

The MAX2181A is a highly integrated FM variable-gain low-noise amplifier ideal for use in automotive FM and FM-diversity active antenna applications. The device features an FM signal path, providing 30dB of gain range, controlled by an on-chip power detector. The FM signal path covers 76MHz to 162.5MHz.The device is available in a small, 3mm x 3mm, TQFN package and operates over the extended industrial temperature range (-40°C to +85°C).ApplicationsAutomotive Active AntennaAutomotive Head Unit

The MAX22000 is an industrial-grade configurable analog input/output device that can be configured on-the-fly in software as a voltage input or output, or current input or output. Additional inputs are available to measure other analog signals.The device offers an 18-bit DAC with fast settling time as well as a 24-bit delta-sigma ADC. The ADC and DAC can individually choose between an internal or an external reference.The MAX22000 supports the ADC with a low-noise programmable gain amplifier (PGA), with high-voltage and low-voltage input ranges to support RTD and thermocouple measurements. Additional auxiliary inputs are provided to measure cold junction temperatures on-board.The MAX22000 communicates through a high speed 20MHz SPI bus for all configuration and management information as well as for conversion results. An optional 8-bit CRC enhances the reliability of the SPI interface, protecting against all 8-bit bursts and double-bit errors.The MAX22000 operates from 2.7V to 3.6V analog and digital supplies and up to ±24V high-voltage supplies. The device is available in a 64-pin LGA package and operates over the -40°C to +125°C industrial temperature range.ApplicationsDistributed Control SystemsProcess ControlProgrammable Logic Controllers (PLC)Programmable Automation Controllers (PAC)

The MAX22005 is a twelve-channel industrial-grade analog input voltage-mode device that can also be configured as analog-input current-mode device using an external precision resistor per channel. It can also operate as configurable analog-input using an external precision resistor and low-cost switch per channel. Input channels can be used as twelve single-ended inputs, or six differential inputs, or up to eight multichannel configurable differential inputs. In total, the device supports up to 26 different configurationsThe MAX22005 features an integrated 24-bit delta-sigma ADC that is shared between all channels. The ADC can be used with either an integrated 5ppm/°C precision reference or an external reference. Standard industrial analog input voltage ranges are converted to the ADC input voltage range using high-voltage, zero-drift input amplifiers. All input ports are robustly protected up to ±36V reverse polarity and ±1.5kV surge pulses without the need of TVS diodes.Eight general-purpose digital I/O (GPIO) ports are available for common use, or they can be used to control external switches for configurable inputs.The MAX22005 is factory calibrated with best-in-class system performance of less than 0.05% FSR Total-Unadjusted-Error (TUE) over temperature.The host communicates with the MAX22005 through a high-speed 30MHz SPI bus for all configurations and information management, as well as for acquiring conversion results. An optional 8-bit CRC enhances the reliability of the SPI interface, protecting against all 8-bit bursts, as well as all double-bit errors.The MAX22005 operates from 2.7V to 3.6V analog and digital supplies, and up to ±24V high-voltage supplies.The MAX22005 is available in 48-pin LGA package and operates over the -40°C to +125°C industrial temperature range.ApplicationsProgrammable Logic Controllers (PLC)Programmable Automation Controllers (PAC)Distributed Control Systems (DCS)

The MAX22007 is a software-configurable four-channel analog output device that drives a voltage or current output on each channel. All outputs are protected to ±42VP-Pfor high-voltage supply of HVDD = 8V to 20V and HVSS = -2V to 0V.Each output channel of the MAX22007 features a 12-bit DAC with fast settling time using a shared internal voltage reference. The device offers low-offset, high-voltage amplifiers to condition the signal from low-voltage DAC outputs to high-voltage or current outputs. If one output is miswired, all other outputs remain unaffected and function normally. For each channel, an internal comparator can be used to determine the load impedance and allows the microcontroller to intelligently select for voltage or current output mode. All outputs are kept safe by integrated current protection for functional and thermal robustness. The MAX22007 also includes a thermal shutdown circuit that protects the device when the junction temperature exceeds 165°C (typ).The MAX22007 communicates with a microcontroller using a SPI interface at clock rates up to 30MHz with an optional eight-bit CRC for improved data integrity. Eight GPIOs can be used to interface and control other resources in the application circuit. The MAX22007 operates from a 2.7V to 5.5V VDDlow-voltage supply and an 8V to 24V HVDD positive high-voltage supply. The negative voltage supply HVSS can be set between -2V and 0V.The MAX22007 is available in an 8mm x 8mm 56-pin TQFN package and operates over the -40°C to +85°C temperature range with 2.5kV HBM ESD protection on all pins.ApplicationsBuilding Automation Analog OutputsConfigurable Analog Output CardsFactory Automation Analog OutputsProcess AutomationProgrammable Logic Controllers

The MAX22025–MAX22028/MAX22025F–MAX22028F compact isolated RS-485/ RS-422 transceivers provide 3.5kVRMSof digital galvanic isolation between the cable-side (RS-485/RS-422 driver/ receiver-side) and the UART-side of the device. Isolation improves communication by breaking ground loops and reduces noise when there are large differences in ground potential between ports. These devices allow for robust communication up to 0.5Mbps or 16Mbps.The MAX22025–MAX22028/MAX22025F–MAX22028F feature Maxim’s proprietary AutoDirection control making these devices ideal for applications such as isolated RS-485 ports, where the driver input is used in conjunction with the driver-enable signal to drive the differential bus.The MAX22025/MAX22027/MAX22025F/MAX22027F feature reduced slew rate drivers that minimize EMI and reduce reflections caused by improper termination of cable allowing error-free transmission up to 0.5Mbps. The MAX22026/MAX22028/MAX22026F/MAX22028F driver outputs are not slew-rate limited, allowing transmit speeds up to 16Mbps.The receiver output of the MAX22025/MAX22026/MAX22025F/MAX22026F does not follow (VA-VB) when the device is in the driverenabled state. The receiver output on the MAX22027/MAX22028/MAX22027F/ MAX22028F always follows (VA-VB).The driver outputs and receiver inputs are protected from ±10kV electrostatic discharge (ESD) to GNDB on the cable side, as specified by the Human Body Model (HBM). The MAX22025–MAX22028/MAX22025F–MAX22028F are available in a compact 8-pin wide body SOIC package and operate over the -40°C to +85°C temperature range.ApplicationsUtility MetersIndustrial Automation EquipmentProgrammable Logic ControllersHVAC