The MAX20730 is a fully integrated, highly efficient switchingregulator with PMBus™ for applications operating from4.5V to 16V and requiring up to 25A (max) load. Thissingle-chip regulator provides extremely compact, highefficiencypower-delivery solutions with high-precisionoutput voltages and excellent transient response fornetworking, datacom, and telecom equipment.The IC offers a broad range of programmable featuresthrough either the PMBus or a capacitor and resistorconnected to a dedicated programming pin. Using thisfeature, the operation can be optimized for a specificapplication, reducing the component count and/or settingappropriate trade-offs between the regulator’s performanceand system cost. Ease of programming enables using thesame design for multiple applications.The IC includes protection and telemetry features. Positiveand negative cycle-by-cycle overcurrent protection andovertemperature protection ensure a rugged design.Input undervoltage lockout shuts down the device toprevent operation when the input voltage is out ofspecification. A status pin provides an output signal toshow that the output voltage is within range and thesystem is regulating.

The MAX20733 is a fully integrated, highly efficientswitching regulator for applications operating from 4.5V to16V and requiring up to 35A maximum load. This singlechipregulator provides extremely compact, high-efficiencypower-delivery solutions with high-precision outputvoltages and excellent transient respondse for networking,datacom, and telecom equipment.The IC offers a broad range of programmable featuresthrough capacitors and resistors connected to dedicatedprogramming pins. Using this feature, the operation canbe optimized for a specific application, reducing thecomponent count- and/or setting-appropriate trade-offsbetween the regulator's performance and system cost.Ease of programming enables using the same design formultiple applications.The MAX20733 includes protection capabilities. Positiveand negative cycle-by-cycle overcurrent protection andovertemperature protection ensure a rugged design. Inputundervoltage lockout shuts down the device to preventoperation when the input voltage is out of specification. Astatus pin provides an output signal to show that the outputvoltage is within range and the system is regulating.ApplicationsµP ChipsetsCommunications EquipmentI/OMemory VDDQNetworking EquipmentPoint-of-Load Voltage RegulatorsServers and Storage Equipment

The MAX20734 is a fully integrated, highly efficient switching regulator with PMBus™ for applications operating from 4.5V to 16V and requiring up to 40A (max) load. This single-chip regulator provides extremely compact, high-efficiency power-delivery solutions with high-precision output voltages and excellent transient response for networking, datacom, and telecom equipment. The IC offers a broad range of programmable features through either the PMBus or a capacitor and resistorconnected to a dedicated programming pin. Using this feature, the operation can be optimized for a specificapplication, reducing the component count and/or setting appropriate trade-offs between the regulator’s performance and system cost. Ease of programming enables using thesame design for multiple applications.The IC includes protection and telemetry features. Positive and negative cycle-by-cycle overcurrent protection and overtemperature protection ensure a rugged design. Input undervoltage lockout shuts down the device to prevent operation when the input voltage is out of specification. A status pin provides an output signal to show that the output voltage is within range and the system is regulating.PMBus is a trademark of SMIF, Inc.ApplicationsCommunications EquipmentI/OMemory VDDQNetworking EquipmentPoint-of-Load Voltage RegulatorsServers and Storage EquipmentμP Chipsets

The MAX20743 is a fully integrated, highly efficient switching regulator with PMBus™ for applications operating from 4.5V to 16V and requiring up to 35A maximum load. This single-chip regulator provides extremely compact, high-efficiency power delivery solutions with high-precision output voltages and excellent transient response for networking, datacom and telecom equipment.The IC offers a broad range of programmable features through either the PMBus or through a capacitor and resistor connected to a dedicated programming pin. Using this feature, the operation can be optimized for a specific application, reducing the component count and/or setting appropriate trade-offs between the regulator’s performance and system cost. Ease of programming enables using the same design for multiple applications.The IC includes protection and telemetry features. Positive and negative cycle-by-cycle overcurrent protection and overtemperature protection ensure a rugged design. Input undervoltage lockout shuts down the device to prevent operation when the input voltage is out of specification. A status pin provides an output signal to show that the output voltage is within range and the system is regulating.ApplicationsCommunicationsNetworkingServers and Storage equipments

The MAX20745 is a fully integrated, highly efficientswitching regulator for applications operating from 4.5V to16V and requiring up to 25A maximum load. This singlechipregulator provides extremely compact, high-efficiencypower-delivery solutions with high-precision outputvoltages and excellent transient response for networking,datacom, and telecom equipment.The IC offers a broad range of programmable featuresthrough capacitors and resistors connected to dedicatedprogramming pins. Using this feature, the operation canbe optimized for a specific application, reducing thecomponent count- and/or setting-appropriate trade-offsbetween the regulator's performance and system cost.Ease of programming enables using the same design formultiple applications.The MAX20745 includes protection capabilities. Positiveand negative cycle-by-cycle overcurrent protection andovertemperature protection ensure a rugged design. Inputundervoltage lockout shuts down the device to preventoperation when the input voltage is out of specification. Astatus pin provides an output signal to show that the outputvoltage is within range and the system is regulating.ApplicationsCommunications EquipmentI/OMemory VDDQNetworking EquipmentPoint-of-Load Voltage RegulatorsServers and Storage EquipmentμP Chipsets

The MAX2084 is a highly integrated 16-channel ultrasound receiver optimized for high channel count, high performance portable and cart-based ultrasound systems.Each channel of this highly compact receiver includes LNA, VGA, AAF, ADC, and several digital post processing circuits (including a digital HPF). It achieves an ultra-low 2.4dB noise figure at RS = RIN = 200Ω at a low 143mW per channel power dissipation when sampling at 50msps. Additionally, there is a lower power mode of operation that achieves 100mW per channel, but with reduced AC performance. The receive channel has been optimized for second harmonic imaging with -70dBFS second harmonic distortion performance at FIN = 5MHz over the full TGC range. Dynamic range has also been optimized for exceptional pulsed and color flow Doppler performance under high clutter conditions. The full receive channel exhibits an outstanding 81dBFS SNR at 5MHz with a 2MHz bandwidth. The bipolar front end and CMOS ADC have also been optimized for an exceptionally low, near-carrier modulation noise of -141dBc/Hz at 1kHz; offset from a 5MHz tone for excellent low-velocity Doppler sensitivity.The device also includes a 16-channel CWD beamformer for a full Doppler solution. Separate mixers for each channel are made available for optimal CWD sensitivity, yielding an impressive 157dBc/Hz dynamic range per channel at 1kHz offset from a 2MHz carrier.Furthermore, the MAX2084 also contains several digital post-processing options associated with digital mix-to-baseband operation. The device contains a 96dB SNR NCO, with a programmable frequency range from 800kHz to 17.6MHz with When mixed-to-baseband is used, it is possible to reduce the number of LVDS output lanes required (from 20 pairs to 12 pairs) if decimation rates are ≥ 4.The MAX2084 is offered in a 17mm x 16mm BGA package with 0.8mm ball pitch, and is specified over a 0°C to +85°C temperature range. Design Solution: Don’t Be Blinded by Your Amplifier’s Slow Overload Recovery ›ApplicationsEchocardiograph SystemsMedium and High-Performance Cart-Based Ultrasound SystemsMedium and High-Performance Portable Ultrasound SystemsReal-Time 4D Ultrasound SystemsShear Wave Elastography Systems

The MAX22500E/MAX22501E half-duplex ESD-protected RS-485/RS-422 transceivers are optimized for high-speed (up to 100Mbps) communication over long cables.These transceivers feature integrated hot-swap protection and a fail-safe receiver, ensuring a logic-high on the receiver output when input signals are shorted or open for longer than 10µs (typ).The MAX22500E features integrated preemphasis circuitry that extends the distance and increases the data rate of reliable communication by reducing inter-symbol interference(ISI) caused by long cables. The MAX22500E features a flexible logic interface down to 1.6V.The MAX22501E operates without preemphasis and is powered from a 3V to 5.5V supply.The MAX22500E is available in a 10-pin TDFN-EP package. The MAX22501E is available in a 8-pin TDFN-EP package and an 8-pin µMAX package. Both transceiversoperate over the -40°C to +125°C ambient temperature range.Also see the MAX22502E Full-Duplex RS-485/RS-422 Transceiver › Design Solution: RS-485: Overcome the Speed vs. Distance Challenge ›ApplicationsBackplane BussesEncoder InterfacesField Bus NetworksIndustrial Control SystemsMotion Control

The MAX22500E/MAX22501E half-duplex ESD-protected RS-485/RS-422 transceivers are optimized for high-speed (up to 100Mbps) communication over long cables.These transceivers feature integrated hot-swap protection and a fail-safe receiver, ensuring a logic-high on the receiver output when input signals are shorted or open for longer than 10µs (typ).The MAX22500E features integrated preemphasis circuitry that extends the distance and increases the data rate of reliable communication by reducing inter-symbol interference(ISI) caused by long cables. The MAX22500E features a flexible logic interface down to 1.6V.The MAX22501E operates without preemphasis and is powered from a 3V to 5.5V supply.The MAX22500E is available in a 10-pin TDFN-EP package. The MAX22501E is available in a 8-pin TDFN-EP package and an 8-pin µMAX package. Both transceiversoperate over the -40°C to +125°C ambient temperature range.Also see the MAX22502E Full-Duplex RS-485/RS-422 Transceiver › Design Solution: RS-485: Overcome the Speed vs. Distance Challenge ›ApplicationsBackplane BussesEncoder InterfacesField Bus NetworksIndustrial Control SystemsMotion Control

The MAX2678 GPS/GNSS front-end amplifier IC is designed for automotive and marine GPS/GNSS satellite navigation antenna modules, or for any application that needs to compensate for cable losses from the antenna to receiver. Two unconditionally stable low-noise amplifier stages provide the high gain and integrated I/O matching to minimize the need for external matching components and eliminate the need for additional gain stages. The IC features the option to place a bandpass ceramic or surface acoustic wave (SAW) filter between the two amplifier stages for improved immunity to out-of-band interferers. Additionally, a 3.4dB-gain step is provided to compensate for cable loss variation between different applications. The device is designed to operate across all GNSS frequency standards with a 35dB typical cascaded gain and a 25mA supply current. The two LNA stages allow the use of a wide range of GNSS filter types for maximum flexibility in system design. The final RF output pin, which drives the cable to the GNSS receiver, is also the power-supply connection that accepts a DC supply in the 3.0V to 5.25V range. Alternatively, the DC supply can be applied to pin 4. This GPS/GNSS front-end amplifier is available in a lead-free, 10-pin TDFN surface-mount package (3mm × 3mm). Electrical performance is guaranteed over the extended -40°C to +105°C temperature range.ApplicationsActive AntennasIntegrated Automotive and Marine GPS Receivers

The MAX2679 and MAX2679B low-noise amplifiers (LNA) are designed for GPS L1, Galileo, and GLONASS applications. The devices achieve high gain and low noise figure while maximizing the input-referred 1dB compression point and the 3rd-order intercept point. The MAX2679 achieves excellent performance while consuming only 1mA supply current and providing 0.95dB noise figure. The MAX2679B achieves excellent performance while consuming only 650µA and providing 1.03dB noise figure.The MAX2679/MAX2679B operates from a +1.08V to +1.98V single supply. The devices are available in a very small, lead-free, RoHS-compliant, 0.83mm x 0.83mm wafer-level package (WLP).Design Solution: Empower Wearable Electronics by Turning Down the Current ›ApplicationsCellular Phones with GPSDigital CamerasGPS Front End ModulesNotebook PCs/Ultra-Mobile PCsRecreational NavigationTelematics (Asset Tracking and Management)WatchesWearables

The MAX2871 is an ultra-wideband phase-locked loop (PLL) with integrated voltage control oscillators (VCOs) capable of operating in both integer-N and fractional-N modes. When combined with an external reference oscillator and loop filter, the MAX2871 is a high-performance frequency synthesizer capable of synthesizing frequencies from 23.5MHz to 6.0GHz while maintaining superior phase noise and spurious performance.The ultra-wide frequency range is achieved with the help of multiple integrated VCOs covering 3000MHz to 6000MHz, and output dividers ranging from 1 to 128. The device also provides dual differential output drivers, which can be independently programmed to deliver -1dBm to +8dBm output power. Both outputs can be muted by either software or hardware control.The MAX2871 is controlled by a 4-wire serial interface and is compatible with 1.8V control logic. The device is available in a lead-free, RoHS-compliant, 5mm x 5mm, 32-pin TQFN package, and operates over an extended -40°C to +85°C temperature range.The MAX2871 has an improved feature set and better overall phase noise and is fully pin- and software-compatible with the MAX2870.What are the differences between MAX2870 and MAX2871? ›ApplicationsClock GenerationMicrowave RadiosTest and MeasurementWireless Infrastructure

The MAX30112 is a complete optical pulse oximetry and heart rate detection integrated analog front-end. The MAX30112 has a high-resolution, optical readout signal-processing channel with built-in ambient light cancellation, as well as high-current LED driver DACs, to form a complete optical readout signal chain. With external LED(s) and photo diode(s), the MAX30112 offers the lowest power, highest performance heart rate detection solution for wrist applications.The MAX30112 operates on a 1.8V main supply voltage, with a separate 3.1V to 5.25V LED driver power supply. The device supports a standard I2C compatible interface, as well as shutdown modes through the software with near-zero standby current, allowing the power rails to remain powered at all times.ApplicationsFitness Wearable DevicesIn-Ear Wearable DevicesSpO2 Monitoring DevicesWrist-Worn Wearable Devices

The MAX30205 temperature sensor accurately measures temperature and provide an overtemperature alarm/interrupt/shutdown output. This device converts the temperature measurements to digital form using a high-resolution, sigma-delta, analog-to-digital converter (ADC). Accuracy meets clinical thermometry specification of the ASTM E1112 when soldered on the final PCB. Communication is through an I2C-compatible 2-wire serial interface.The I2C serial interface accepts standard write byte, read byte, send byte, and receive byte commands to read the temperature data and configure the behavior of the open-drain overtemperature shutdown output.The MAX30205 features three address select lines with a total of 32 available addresses. The sensor has a 2.7V to 3.3V supply voltage range, low 600µA supply current, and a lockup-protected I2C-compatible interface that make them ideal for wearable fitness and medical applications.This device is available in an 8-pin TDFN package and operates over the 0°C to +50°C temperature range.ApplicationsFitnessMedical

The MAX30205 temperature sensor accurately measures temperature and provide an overtemperature alarm/interrupt/shutdown output. This device converts the temperature measurements to digital form using a high-resolution, sigma-delta, analog-to-digital converter (ADC). Accuracy meets clinical thermometry specification of the ASTM E1112 when soldered on the final PCB. Communication is through an I2C-compatible 2-wire serial interface.The I2C serial interface accepts standard write byte, read byte, send byte, and receive byte commands to read the temperature data and configure the behavior of the open-drain overtemperature shutdown output.The MAX30205 features three address select lines with a total of 32 available addresses. The sensor has a 2.7V to 3.3V supply voltage range, low 600µA supply current, and a lockup-protected I2C-compatible interface that make them ideal for wearable fitness and medical applications.This device is available in an 8-pin TDFN package and operates over the 0°C to +50°C temperature range.ApplicationsFitnessMedical

The MAX31091 is a low-cost clock generator that is factory trimmed to output frequencies from 200kHz to 66.6MHz with a nominal accuracy of ±0.25%. The device can also produce a center-spread-spectrum output with pin-selectable dither magnitude and rate. Assembled in an 8-pin µMAX® package, the MAX31091 is designed to operate with a 3.0V to 3.6V power supply over the automotive temperature range (-40°C to +125°C).ApplicationsAdvanced Driver Assistance System (ADAS)AutomotiveAutomotive InfotainmentEngine Control Unit (ECU) InstrumentationNavigation

The MAX31091 is a low-cost clock generator that is factory trimmed to output frequencies from 200kHz to 66.6MHz with a nominal accuracy of ±0.25%. The device can also produce a center-spread-spectrum output with pin-selectable dither magnitude and rate. Assembled in an 8-pin µMAX® package, the MAX31091 is designed to operate with a 3.0V to 3.6V power supply over the automotive temperature range (-40°C to +125°C).ApplicationsAdvanced Driver Assistance System (ADAS)AutomotiveAutomotive InfotainmentEngine Control Unit (ECU) InstrumentationNavigation

The MAX31091 is a low-cost clock generator that is factory trimmed to output frequencies from 200kHz to 66.6MHz with a nominal accuracy of ±0.25%. The device can also produce a center-spread-spectrum output with pin-selectable dither magnitude and rate. Assembled in an 8-pin µMAX® package, the MAX31091 is designed to operate with a 3.0V to 3.6V power supply over the automotive temperature range (-40°C to +125°C).ApplicationsAdvanced Driver Assistance System (ADAS)AutomotiveAutomotive InfotainmentEngine Control Unit (ECU) InstrumentationNavigation

The MAX31730 temperature sensor monitors its own temperature and the temperatures of three external diode-connected transistors. The operating supply voltage is from 3.0V to 3.6V. Resistance cancellation compensates for high series resistance in circuit-board traces and the external thermal diode, while beta compensation corrects for temperature-measurement errors due to low-beta sensing transistors.All temperature channels have programmable temperature thresholds. When the measured temperature of a channel crosses the respective threshold, a status bit is set in the thermal status registers and the open-drain active-low THERM output asserts. A highest temperature register allows the master to obtain the temperature of the hottest channel.The 2-wire serial interface accepts SMBus protocols (write byte, read byte, send byte, and receive byte) for reading the temperature data and programming the temperature thresholds. Any one of eight available slave addresses can be selected using the address selection input (ADD), which can be connected to ground or connected to a grounded resistor.The MAX31730 supports 3.0V to 3.6V operation and is specified for a -40°C to +125°C operating temperature range and is available in a 10-pin µMAX® and a 12-pin, 3mm x 3mm TDFN package.ApplicationsCommunications EquipmentCPU, FPGA, and ASIC Die Temperature MonitoringServers

The MAX31856 performs cold-junction compensation and digitizes the signal from any type of thermocouple. The output data is formatted in degrees Celsius. This converter resolves temperatures to 0.0078125°C, allows readings as high as +1800°C and as low as -210°C (depending on thermocouple type), and exhibits thermocouple voltage measurement accuracy of ±0.15%. The thermocouple inputs are protected against overvoltage conditions up to ±45V.A lookup table (LUT) stores linearity correction data for several types of thermocouples (K, J, N, R, S, T, E, and B). Line frequency filtering of 50Hz and 60Hz is included, as is thermocouple fault detection. A SPI-compatible interface allows selection of thermocouple type and setup of the conversion and fault detection processes.ApplicationsIndustrial EquipmentIndustrial Ovens, Furnaces, and Environmental ChambersTemperature Controllers

The MAX31856 performs cold-junction compensation and digitizes the signal from any type of thermocouple. The output data is formatted in degrees Celsius. This converter resolves temperatures to 0.0078125°C, allows readings as high as +1800°C and as low as -210°C (depending on thermocouple type), and exhibits thermocouple voltage measurement accuracy of ±0.15%. The thermocouple inputs are protected against overvoltage conditions up to ±45V.A lookup table (LUT) stores linearity correction data for several types of thermocouples (K, J, N, R, S, T, E, and B). Line frequency filtering of 50Hz and 60Hz is included, as is thermocouple fault detection. A SPI-compatible interface allows selection of thermocouple type and setup of the conversion and fault detection processes.ApplicationsIndustrial EquipmentIndustrial Ovens, Furnaces, and Environmental ChambersTemperature Controllers