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Maxim产品 - MAX919介绍

MAX919 - SOT23封装、1.8V、纳安级功耗、超摆幅比较器，带或不带电压基准

MAX919是Maxim美信半导体公司的一款放大器产品，MAX919是SOT23封装、1.8V、纳安级功耗、超摆幅比较器，带或不带电压基准，本站介绍了MAX919的封装应用图解、特点和优点、功能等，并给出了与MAX919相关的Maxim元器件型号供参考。

MAX919 - SOT23封装、1.8V、纳安级功耗、超摆幅比较器，带或不带电压基准 - 放大器 - 可理想用于便携设备中的2节电池监控 - 美信半导体

产品概述

The MAX917–MAX920 nanopower comparators in space-saving SOT23 packages feature Beyond-the-Rails™ inputs and are guaranteed to operate down to +1.8V. The MAX917/MAX918 feature an on-board 1.245V ±1.5% reference and draw an ultra-low supply current of only 750nA, while the MAX919/MAX920 (without reference) require just 380nA of supply current. These features make the MAX917–MAX920 family of comparators ideal for all 2-cell battery applications, including monitoring/management.

The unique design of the output stage limits supply-current surges while switching, virtually eliminating the supply glitches typical of many other comparators. This design also minimizes overall power consumption under dynamic conditions. The MAX917/MAX919 have a push-pull output stage that sinks and sources current. Large internal output drivers allow rail-to-rail output swing with loads up to 8mA. The MAX918/MAX920 have an open-drain output stage that makes them suitable for mixed-voltage system design.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Ultra-Low Supply Current
  • 380nA per Comparator (MAX919/MAX920)
  • 750nA per Comparator with Reference (MAX917/MAX918)
  • Guaranteed to Operate Down to +1.8V
  • Internal 1.245V ±1.5% Reference (MAX917/MAX918)
  • Input Voltage Range Extends 200mV Beyond-the-Rails
  • CMOS Push-Pull Output with ±8mA Drive Capability (MAX917/MAX919)
  • Open-Drain Output Versions Available (MAX918/MAX920)
  • Crowbar-Current-Free Switching
  • Internal Hysteresis for Clean Switching
  • No Phase Reversal for Overdriven Inputs
  • Space-Saving SOT23 Package
    • 热门应用
  • 2节电池监视/管理
  • 医疗仪器
  • 移动通信
  • 笔记本电脑与PDA
  • 地或电源线检测
  • 遥感勘测与远端系统
  • 门限检测器/鉴别器
  • 超低功耗系统
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