• 简体中文
• English

MAX918：SOT23封装、1.8V、纳安级功耗、超摆幅比较器，带或不带电压基准

可理想用于便携设备中的2节电池监控

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 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

MAX917、MAX918、MAX919、MAX920：典型工作电路 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

数据手册DataSheet

关键参数

质量和环境数据

• MAX918.pdf

相关产品

• MAX986：微功耗、低电压、UCSP/SC70封装、满摆幅输入/输出比较器
• MAX9075：低成本、超小型、3µA、单电源比较器
• MAX9077：低成本、超小型、3µA、单电源比较器
• MAX966：单/双/四路、微功耗、超低电压、满摆幅输入/输出比较器

订购型号