Future Electronics – Analog Corner


- Analog Signal Chain

5L35023: VersaClock® 3S Programmable Clock Generator

The 5L35023 is a VersaClock programmable clock generator and is designed for low power and high performance PCI Express applications. The device is a three PLL architecture design, and each PLL is individually programmable, allowing for up to five unique frequency outputs. The 5L35023 has built-in unique features such as Proactive Power Saving (PPS), Performance-Power Balancing (PPB), Overshot Reduction Technology (ORT) and extreme low power DCO. An internal OTP memory allows the user to store the configuration in the device without programming after power up, then program the 5L35023 again through the I2C interface.

  • PCIe Gen1/2/3 compliant
  • 1MHz to 125MHz output frequency
  • 1.5ps rms jitter integer range: 12kHz - 20MHz
  • 2 DIFF outputs with configurable LPHSCL, LVCMOS output pairs
  • 3 LVCMOS out
  • <65μA ultra-power-down
  • Spread spectrum clock support to lower system EMI
  • <2μA RTC clock in suspend mode operation
  • Configurable OE pin function
  • Maximum of 8 LVCMOS outputs

MAX30110/2: Optimized Pulse-Oximeter and Heart Rate AFE for Wearable Health

The MAX30110/2 is a family of complete optical pulse oximetry and heart rate detection integrated analog front-end. The devices integrated 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 MAX30110/2 offers the lowest power, highest performance heart rate detection solution for wrist applications. The MAX30110/2 operates on a 1.8V main supply voltage, with a separate 3.1V to 5.25V LED driver power supply.

  • Reflective or transmissive heart rate, heart rate variability, or SpO2 monitoring
  • 50mA, 100mA, 150mA, 200mA selectable LED current ranges
  • 19-bit optical ADC path
  • Less than 25μA power consumption at 25sps
  • 20sps to 3.2ksps multiple sample rate options
  • Two 8-bit LED current DACs
  • Low noise current sources
  • Built-in front and back end ambient light cancellation
  • 32 sample FIFO to support batch processing
  • I2C (MAX30112) and SPI (MAX30110) interface

MCP6411: 1MHz Operational Amplifier with EMI Filtering

The MCP6411 is a single general purpose op amp offering integrated EMI protection and rail-to-rail input/output over the 1.7 to 5.5V operating range. This amplifier has a typical Gain Bandwidth Product (GBWP) of 1 MHz with typical quiescent current of 50 uA. The MCP6411 has enhanced EMI protection to minimize any electromagnetic interference from external sources. This feature makes it well suited for EMI sensitive applications such as power lines, radio stations and mobile communications.

  • 50μA quiescent current
  • 90dB EMIRR at 1.8GHz
  • 1MHz GBWP
  • 0.5V/μs slew rate
  • No phase reversal
  • ±1.0mV maximum input offset voltage
  • 1.7V to 5.5V supply voltage range
  • Rail-to-rail input/output
  • Unity gain stable
  • SC70-5, SOT-23-5 packages

- Drivers

AL16937: Buck Dimmable LED Driver

The AL16937 is a high performance, high power factor, high efficiency, and high current precision buck dimmable LED driver for triac dimmable LED lamp applications. The wide switching frequency operates at boundary conduction mode (BCM) to ease EMI/EMC design and testing, and to meet the latest regulatory standards. The AL16937 LED driver integrates 400V/3A MOSFET and has the built-in thermal fold-back protection trigger point to automatically reduce output current.

  • ± 3% current sense tolerance
  • 210μA operation current
  • Wide range of dimmer compatibility
  • NEMA SSL6 dimming curve compliant
  • Leading-edge blanking
  • 100μA startup current
  • Single winding inductor
  • Integration of 400V/3A MOSFET
  • Internal under-voltage lockout
  • SO-7 package

MAX14874: 4.5V to 36V Dual Relay/Valve/Motor Driver

The MAX14874 dual push-pull driver provides a small and simple solution for driving and controlling relays and valves with voltages between 4.5V and 36V. It is also designed to drive brushed DC motors. Separate COM pins allow monitoring of individual driver load currents. Peak currents up to 2.5A ensure for PWM controlled large motor torque. Low driver on-resistance reduces power dissipation. The MAX14874 features a charge-pump-less design for reduced external components and supply current.

  • Up to 2.5A peak motor current
  • Flexible 4.5V to 36V supply voltage
  • Independent driver control for each driver
  • Diagnostic active-low FAULT output
  • Charge-pump-less architecture
  • 480mΩ bridge on-resistance
  • Individual current sensing
  • Thermal shutdown under-voltage lockout
  • -40°C to +85°C temperature range
  • 3 x 3mm TDFN-EP package

- Power Regulation, Conversion and Management

ISL32740E/41E: High-Speed RS-485 Transceivers with Highest Reinforced Isolation

The ISL3274xE is a family of high-speed, isolated RS-485 differential bus transceivers that provide 40Mbps bidirectional data communication for Industrial Internet of Things (IIoT) networks. The ISL32741E offers 1,000VRMS working voltage and 6kV of reinforced isolation, more than 2x higher than competitive solutions. The higher working voltage and reinforced isolation is required for today’s most rigorous medical and high-speed motor control applications. The ISL32740E with 2.5kV of isolation and 600VRMS working voltage comes in the industry’s smallest package, enabling high channel density for programmable logic controllers (PLCs) in factory automation applications.

  • 40Mbps data rate
  • 5ns pulse skew and 20ns propagation delay
  • 50kV/μs (typ), 30kV/μs (min) common-mode transient immunity
  • 15kV ESD bus-pin protection
  • PROFIBUS compliant
  • 3V to 5V power supplies
  • Single unit load allows up to 160 devices on the bus
  • 44,000 years barrier lifetime
  • Thermal shutdown protection
  • 1k MSRP: $3.79 to $4.49 US

MP4433: 36V, 3A Synchronous Step-Down Converter

The MP4433 is a frequency-programmable (350kHz to 2.5MHz), synchronous, step-down switching regulator with integrate high-side and low-side power MOSFETs. It provides up to 3A of highly efficient output current with current mode control for fast loop response. The wide 3.3V to 36V input range accommodates a variety of step-down applications in automotive input environments and is ideal for battery-powered applications due to its extremely low quiescent current.

  • 3.3V to 36V operating input range
  • 1μA shutdown mode current
  • 350kHz to 2.5MHz programmable switching frequency
  • Synchronize to external clock, selectable in-phase or 180° out-of-phase
  • Programmable soft start time
  • Low dropout mode
  • 3A continuous output current
  • 10μA sleep mode quiescent current
  • 3.3V, 3.8V, 5V fixed output options
  • Power good indicator
  • Selectable forced CCM or AAM
  • 3 x 4mm QFN-16 package

PI3526-00-LGIZ: Cool-Power ZVS Buck Regulator

The PI3526-00-LGIZ is the latest addition to the Cool-Power ZVS Buck Regulator Portfolio with a 48V (30 - 60 VIN) input. The PI352x is a higher current offering to the existing PI354x portfolio, enabling scalable power options for 48V Direct to Point-of-Load (PoL) applications. The PI3526-00-LGIZ is a 12V output regulator, supplying up to 18A, packaged in a 10 x 14mm LGA SiP package. Offering all the same industry leading features of Vicor’s existing 48V Cool-Power ZVS buck regulators, the PI352x portfolio extends performance by delivering twice the power of the PI354x regulators using only a 40% larger package.

  • 30V to 60V input voltage range
  • Parallel capable with single wire current sharing
  • Output over-voltage protection (OVP)
  • Fast and slow current limits
  • User adjustable soft start and tracking
  • Constant voltage operation
  • Input over/under-voltage lockout (OVLO/UVLO)
  • Over-temperature protection (OTP)
  • Differential amplifier for output remote sensing
  • -40°C to +120°C operating range