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New Maxim Product Highlights

Integrated Photoplethysmogram and Electrocardiogram Bio-Sensor Modules, Bidirectional Current Sense Amplifiers with PWM-Rejection, 300MHz–960MHz ASK and (G)FSK Transmitter with SPI Interface, and much more.

MAX86150 Integrated Photoplethysmogram and Electrocardiogram Bio-Sensor Module

The MAX86150 is an integrated electrocardiogram, pulse oximeter, heart rate monitor sensor module. It includes internal LEDs, photodetector, and low-noise electronics with ambient light rejection. The MAX86150 operates on a 1.8V supply voltage with a separate power supply for the internal LEDs. Communication to and from the module is entirely through a standard I2C-compatible interface.

MAX86150 Integrated Photoplethysmogram and Electrocardiogram Bio-Sensor Module

Figure 1. Simplified Block Diagram

Key Features

  • Electrocardiogram (ECG) Optimized for Dry Electrode Operation
  • Reflective Heart Rate Monitor and Medical-Grade Pulse Oximeter
  • Miniature 3.3mm x 5.6mm x 1.3mm 22-pin Optical Module
  • Optical-Grade Glass for Long-Term Optimal and Robust Performance
  • Ultra-Low Power Operation for Mobile Devices
  • Ultra-Low Shutdown Current (0.7μA Typical)
  • High SNR and Robust Ambient Light Cancellation
  • -40°C to +85°C Operating Temperature Range

Applications/Uses

  • Fitness Assistant Devices
  • Smartphones
  • Tablets
  • Wearable Devices

More information at: https://www.maximintegrated.com/en/products/sensors/MAX86150.html

MAX40056F Bidirectional Current Sense Amplifier with PWM-Rejection

The MAX40056 is a bidirectional current-sense amplifier with an input common-mode range that extends from -0.1V to +65V together with protection against negative inductive kickback voltages to -5V. This CSA is well-suited for phase current monitoring of inductive loads, such as motors and solenoids, where pulse width modulation is used to control the drive voltage and current.

The MAX40056 has an internal +1.5V reference for use with a nominal +3.3V power supply. The reference can also be used to drive an adjoining differential ADC. The reference is used to offset the output to indicate the direction of the input sensed current.

 MAX40056F Bidirectional Current Sense Amplifier with PWM-Rejection

Figure 1. Simplified Block Diagram

Key Features

  • Fast, 2μs PWM Edge recovery (1%) from 500V/μs PWM Edges
  • 60dB AC CMRR Rejection at 50V, ±500V/μs PWM Edges
  • 140dB DC CMRR Rejection
  • -0.1V to +65V Input Voltage Range
  • -5V to +70V Protective Immunity
  • 300kHz, -3dB Bandwidth
  • Multiple Gain Options; 10V/V, 20V/V, 50V/V
  • Internal, 1% Reference for Bidirectional Offset
  • 5μV (Typ) Input Offset Voltage
  • Rail-to-Rail Output
  • 2.02mm x 1.4mm WLP-8 and 8-pin μMAX
  • -40°C to +125°C Temperature Range

Applications/Uses

  • Automotive
  • Battery Stack Monitors
  • Current Monitoring of Inductive Loads
  • PWM H-Bridge Motor In-line/In-phase/Winding Current Sensing
  • Solenoid Current Sensing

More information at: https://www.maximintegrated.com/en/products/analog/amplifiers/MAX40056F.html

MAX41460 300MHz–960MHz ASK and (G)FSK Transmitter with SPI Interface

The MAX41460 is a UHF sub-GHz ISM/SRD transmitter is designed to transmit On-Off Keying (OOK), Amplitude-Shift Keying (ASK), Frequency-Shift Keying (FSK), and Gaussian (G)FSK (or 2GFSK) data in the 286MHz to 960MHz frequency range. It integrates a fractional phase-locked-loop (PLL).
The MAX41460 provides output power up to +13dBm into a 50Ω load while only drawing < 8mA for ASK (Manchester coded) and < 12mA for (G)FSK transmission at 315MHz. The output load can be adjusted to increase power up to +16dBm, and a PA boost mode can be enabled at frequencies above 850MHz to compensate for losses. The PA output power can also be controlled using programmable register settings.

 MAX41460 300MHz–960MHz ASK and (G)FSK Transmitter with SPI Interface

Figure 1. Simplified Block Diagram

Key Features

  • Low Implementation Cost
    • Bits-to-RF Single-Wire Operation
    • Low Bill-of-Materials (BoM)
    • Uses Single, Low-Cost, 16MHz Crystal
    • Small 3mm x 3mm TSSOP-10 Package
  • Increased Range, Data Rates, and Security
    • Up to +16dBm PA Output Power
    • Fast Frequency Switching for FHSS/DSSS
    • Fast-On Oscillator: < 250μs Startup Time
    • Up to 200kbps NRZ Data Rate
  • Extend Battery Life with Low Supply Current
    • < 8mA ASK Manchester Coded
    • < 12mA (G)FSK or 2GFSK at 315MHz
    • Selectable Standby and Shutdown Modes
    • Auto Shutdown at < 20nA (typ) Current
  • Ease-of-Use
    • +1.8V to +3.6V Single-Supply Operation
    • Fully Programmable with SPI Interface
    • 400kHz/1MHz I2C Versions Also Available

Applications/Uses

  • Automatic Meter Reading (AMR)
  • Building Automation and Security
  • Garage Door Openers (GDO)
  • Internet of Things (IoT) Sensor Networks
  • Radio Control Toys
  • Remote Keyless Entry (RKE)
  • Tire Pressure Monitoring Systems (TPMS)

More information at: https://www.maximintegrated.com/en/products/comms/wireless-rf/MAX41460.html

MAX14915 Compact Industrial Octal High-Side Switch with Diagnostics

The MAX14915 has eight high-side switches specified to deliver up to 700mA continuous current. The high-side switches have on-resistance of 250mΩ (max) at 125°C ambient temperature. The SPI interface has a built-in chip addressing decoder, allowing communication with multiple MAX14915s utilizing a common SPI chip select (CS).

MAX14915 Compact Industrial Octal High-Side Switch with Diagnostics

Figure 1. Simplified Block Diagram

Key Features

  • Robustness and Smart Diagnostics
    • 65V Absolute Maximum Supply Range
    • Internal Clamps for Fast Inductive Load Demagnetization
    • CRC Error Checking on the SPI Interface
    • Watchdog Timer for Diagnostics Checking
    • Open-Wire Detection, Both with Switches On and Off
    • Undervoltage Detection with UVLO
    • Loss of VDD or GND Protection
    • Thermal Shutdown Protection
    • Integrated ±1kV/42Ω IEC61000-4-5 Surge Protection
    • -40°C to +125°C Operating Ambient Temperature
  • Reduces Power and Heat Dissipation
    • 250mΩ (Max) On-Resistance at TA = 125°C
    • 2mA (typ) Supply Current
    • Accurate Output Current Limiting

Applications/Uses

  • Industrial Digital Outputs
  • PLC Systems

More information at: https://www.maximintegrated.com/en/products/power/mosfet-drivers-controllers/MAX14915.html

MAX6079 Low-Noise, High-Precision Series Voltage Reference in Ceramic Package

The MAX6079 offers a very low noise and low-drift voltage reference in a small 8-pin Ceramic package. The device provides a 1/f noise voltage of only 4.8μVP-P at an output voltage of 2.5V, with a temperature drift of 6ppm/°C (max). The device consumes 160μA of supply current and can sink and source up to 10mA of load current.

MAX6079 Low-Noise, High-Precision Series Voltage Reference in Ceramic Package

Figure 1. Low-Noise, High-Precision Series Voltage Reference in Ceramic Package

Key Features

  • 8-pin Ceramic Package Reduces System Board Space
  • Hermetically Sealed Ceramic Package Offers Stable Results vs. Time, Humidity and Temperature
  • Stable Performance Over Temperature and Time Improves System Accuracy
    • High ±0.08% Initial Accuracy
    • Low 1.5ppm/°C (typ), 6ppm/°C (max) Temperature Drift
    • Low 4.8μVP-P Noise (0.1Hz to 10Hz) at 2.5VLow 200mV Dropout Voltage
    • High 85dB Ripple Rejection
  • Low 160μA Supply Current Reduces Power Consumption
  • Filter Option Lowers High-Frequency Noise

Applications/Uses

  • High-Accuracy Industrial and Process Control
  • High-Resolution ADCs and DACs
  • Precision Current Sources
  • Precision Instrumentation

More information at: https://www.maximintegrated.com/en/products/analog/voltage-references/MAX6079.html

MAX22344 Reinforced, Fast, Low-Power, Four-Channel 3.75kVRMS Digital Isolators

The MAX22344–MAX22346 are reinforced, fast, low-power, 4-channel digital galvanic isolators using Maxim’s proprietary process technology. These devices transferdigital signals between circuits with different power domains, using as little as 0.74mW per channel at 1Mbps (1.8V supply). All of the devices in the family feature reinforced isolation for a withstand voltage rating of 3.75kVRMS for 60 seconds.

MAX22344 Reinforced, Fast, Low-Power, Four-Channel 3.75kVRMS Digital Isolators

Figure 1. Functional Diagram

Key Features

  • Reinforced Galvanic Isolation for Fast Digital Signals
    • Up to 200Mbps Maximum Data Rate
    • Withstands 3.75kVRMS for 60s (VISO)
    • Continuously Withstands 784VRMS (VIOWM)
    • Withstands ±10kV Surge Between GNDA and GNDB with 1.2/50μs Waveform
    • High CMTI (50kV/μs, Typical)
  • Low Power Consumption
    • 0.74mW per Channel at 1Mbps with VDD = 1.8V
    • 1.4mW per Channel at 1Mbps with VDD = 3.3V
    • 3.2mW per Channel at 100Mbps with VDD = 1.8V
  • Options to Support a Broad Range of Applications
    • 2 Maximum Data Rates (200Mbps, 25Mbps)
    • 3 Direction Configurations
    • Active-High or Active-Low Enable Inputs
    • Pin-Selectable Output Default States (High/Low)

Applications/Uses

  • Battery Management
  • Fieldbus Communications for Industrial Automation
  • Isolated RS-485/RS-422, CAN
  • Isolated SPI Interface
  • Medical Systems

More information at: https://www.maximintegrated.com/en/products/interface/isolation/MAX22344.html

MAX40203 Ultra-Tiny Nanopower, 1A Ideal Diodes with Ultra-Low-Voltage Drop

The MAX40203 is an ideal diode current-switch with forward voltage drop that is approximately an order of magnitude smaller than that of Schottky diodes. When forward biased and enabled, the MAX40203 conducts with 230mV of voltage drop while carrying currents as high as 1A. During a short-circuit or a fast power-up, the device limits its output current to 2A. The MAX40203 thermally protects itself and any downstream circuitry from overcurrent conditions.

MAX40203 Ultra-Tiny Nanopower, 1A Ideal Diodes with Ultra-Low-Voltage Drop

Figure 1. Simplified Block Diagram

Key Features

  • Lower Voltage Drop in Portable Applications
    • 14mV Forward Drop at 1mA (SOT Package)
    • 28mV Forward Drop at 100mA (SOT Package)
    • 100mV Forward Drop at 500mA (SOT Package)
    • 230mV Forward Drop at 1A (SOT Package)
  • Longer Battery Life
    • Low Leakage When Reverse-Biased from VDD:
    • 10nA (Typ)
    • Low Supply Quiescent Current
    • 300nA (Typ), 500nA (Max)
  • Smaller Footprint Than Larger Schottky Diodes
    • Tiny 0.77mm x 0.77mm 4-Bump WLP
    • SOT23-5 Package
  • Wide Supply Voltage Range: 1.2V to 5.5V
  • Thermally Self-Protecting
  • -40°C to +125°C Operating Temperature Range

Applications/Uses

  • Battery Backup Systems
  • Cellular Phones
  • Electronic Toys
  • Notebook and Tablet Computers
  • Portable Medical Devices
  • Powerline Fault Recorders
  • USB-Powered Peripherals

More information at: https://www.maximintegrated.com/en/products/analog/analog-switches-multiplexers/MAX40203.html

MAX5995A IEEE 802.3bt-Compliant, Powered Device Interface Controllers with Integrated 91W High-Power MOSFET

The MAX5995A/MAX5995B/MAX5995C provide a complete interface for a powered device (PD) to comply with the IEEE® 802.3af/at/bt standard in a Power-Over-Ethernet (PoE) system. The devices provide the PD with a detection signature, classification signature, and an integrated isolation power switch with startup inrush current control. During the startup period, the devices limit the current to 135mA (typ) before switching to the higher current limit (1800mA to 2400mA, typ) when the isolation power MOSFET is fully enhanced. The devices feature Multi-Event classification, Intelligent MPS (MAX5995B/MAX5995C), Autoclass (MAX5995C), an input UVLO with wide hysteresis and long deglitch time to compensate for twistedpair cable resistive drop and to assure glitch-free transition during power-on/-off conditions. The devices can withstand a maximum voltage of 100V at the input.

The devices support a Multi-Event classification method, as specified in the IEEE 802.3bt standard, and provide a signal to indicate from Type 1 to Type 4 Power Sourcing Equipment (PSE). The devices can detect the presence of a wall adapter power source connection and allow a smooth switch-over from the PoE power source to the wall power adapter.

MAX5995A IEEE 802.3bt-Compliant, Powered Device Interface Controllers with Integrated 91W High-Power MOSFET

Figure 1. Simplified Block Diagram

Key Features

  • IEEE 802.3af/at/bt Compliant
  • Type 1~4 PSE Classification Indicator or an External Wall Adapter
  • Indicator Output
  • Simplified Wall Adapter Interface
  • Multi-Event Classification 0–8
  • Intelligent MPS (MAX5995B/MAX5995C, Patent US9152161)
  • Sleep Mode and Ultra-Low-Power Sleep Mode (MAX5995A/MAX5995B)
  • 100V Input Absolute Maximum Rating
  • Inrush Current Limit During Startup
  • Current Limit During Normal Operation
  • Current Foldback Protection
  • Undervoltage Lockout at 36V
  • LED Driver with Programmable LED Current (MAX5995A/MAX5995B)
  • Overtemperature Protection
  • Multi-Event Power Level Indication
  • Autoclass Feature (MAX5995C)
  • Thermally Enhanced, 5mm x 5mm, 16-Pin TQFN

Applications/Uses

  • Building Automation
  • IEEE 802.3bt Powered Devices
  • Lighting
  • Small Cell, Pico Cell
  • VOIP Phones, IP Security Cameras
  • Wireless Access Point

More information at: https://www.maximintegrated.com/en/products/power/switching-regulators/MAX5995A.html

MAX6279 0.1%, 25ppm, Ceramic Shunt Voltage Reference

The MAX6279 is a precision, two-terminal shunt mode, bandgap voltage reference available in fixed reverse breakdown voltage of 1.225V. Ideal for space-critical applications, the MAX6279 is offered in an 8-Pin ceramic package.

Laser-trimmed resistors ensure precise initial accuracy. With a 25ppm/°C temperature coefficient, the device is offered in three grades of initial accuracy ranging from 0.1% to 0.5%. The MAX6279 has a 70μA to 12mA shunt current capability with low-dynamic impedance, ensuring stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents.

MAX6279 0.1%, 25ppm, Ceramic Shunt Voltage Reference

Figure 1. Typical Operating Circuit

Key Features

  • 8-Pin Ceramic Package Reduces System Board Space
  • Hermetically Sealed Ceramic Package Offers Stable Results vs. Time, Humidity and Temperature
  • 0.1% (max) Initial Accuracy
  • 25ppm/°C (max) Temperature Coefficient Guaranteed Over -40°C to +85°C Temperature Range
  • Wide Operating Current Range: 70μA to 12mA
  • Low 28μVRMS Output Noise (10Hz to 10kHz)
  • No Output Capacitors Required
  • Stable with Capacitive Loads

Applications/Uses

  • Cell Phones
  • Industrial Process Control
  • Notebook Computers
  • Portable, Battery-Powered Equipment

More information at: https://www.maximintegrated.com/en/products/analog/voltage-references/MAX6279.html

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