30ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparator

Fast Comparator with Most Compact Overall Solution for Automotive Applications



The MAX49140 is a single high-speed comparator optimized for systems powered from a 3V or 5V supply. The MAX49140 combines high speed, low power, and rail-to-rail inputs. Propagation delay is 30ns, while supply current is only 100µA (typ).

The input common-mode range of the device extends up to both power-supply rails. The output pulls to within 0.3V of either supply rail without external pullup circuitry, making the device ideal for interfacing with both CMOS and TTL logic. All input and output pins can tolerate a continuous short-circuit fault condition to either rail. Internal hysteresis ensures clean output switching, even with slow-moving input signals.

The MAX49140 is offered in tiny, 5-pin SC70 package and is fully specified over -40°C to +125°C automotive temperature range. The device is AEC-Q100 qualified.

MAX49140: Simplified Block Diagram MAX49140: Simplified Block Diagram 放大+


  • Fast, 30ns Propagation Delay (10mV Overdrive)
  • Low-Power 100μA Supply Current (VDD = 3V)
  • Optimized for 3V and 5V Applications
  • Rail-to-Rail Input Voltage Range
  • Low, 500µV Offset Voltage
  • Internal Hysteresis for Clean Switching
  • Output Swing 300mV of Power Rails
  • CMOS/TTL-Compatible Outputs
  • Small SC70 Package
  • AEC-Q100 Qualified


  • 3V/5V系统
  • null
  • 线接收器
  • 采样电路
  • 门限检测器/鉴别器
  • 过零检测器

请查看具体的参数规格 Comparators (97)

Part NumberComparatorstPD
Input RangeVSUPPLY (Total)
ICC per Comp.
Logic OutOper. Temp.
(typ)(min)(max)(max)(typ)(max)(See Notes)
MAX49140 NEW!130
Rail to Rail
to Neg. Rail
2.75.52000.55Push-Pull-40 to +125
$0.99 @1k

Pricing Notes:

MAX49140EVKIT: Evaluation Kit for the MAX49140
申请可靠性报告: MAX49140 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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30ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparator

  • Fast, 30ns Propagation Delay (10mV Overdrive)
  • Low-Power 100μA Supply Current (VDD = 3V)
  • Optimized for 3V and 5V Applications

1V, Low-Power, Precision Operational Amplifier

  • Supply Voltage Range: 0.9V to 3.6V
  • Low 25.5µA Quiescent Current
  • Very Low 1μV (typ) Input Offset Voltage

High-Speed Quad Driver with Integrated DACs, Cable-Droop Compensation, Slew-Rate Control, and VHH Fourth-Level Drive

  • Low Power at High-Speed Maximizes Driver Performance
    • 700mW per Channel
    • 2.57Gbps at +1V Programmed
    • 280ps Typical Rise/Fall Times at +2V (20% to 80%)
  • Integrated Functionality Provides Value-Added Features
    • Programmable Double Time Constant Cable-Droop Compensation
    • Digital Slew-Rate Control for EMI Sensitive Applications
    • Adjustable Output Resistance with 360mΩ Resolution

  • MAX40662
    Quad Transimpedance Amplifier with Input Current Clamp and Multiplexer for LiDAR

    • AEC-Q100
    • Enables ASIL Compliance (FMEDA Available Upon Request)
    • Internal Multiplexer

    Dual 280ps High-Speed Comparator, Ultra-Low Dispersion with LVDS Outputs

    • Fast Propagation Delay: 280ps, Typ
    • Low Overdrive Dispersion: 25ps (VOD = 10mV to 1V)
    • Supply Voltage 2.7V to 3.6V