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
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
语言下载文件备注
英文MAX917-MAX920.pdfRev 2; 12/2010
关键参数
Part NumberComp-
arators
tPD
(ns)
Input RangeVSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Comp.
(µA)
VOS
(mV)
VOS
(mV)
Logic OutOper. Temp.
(°C)
Package/PinsBudgetary
Price
typminmaxmaxtypmaxSee Notes
MAX919122000
  • Rail to Rail
  • to Neg. Rail
1.85.50.815Push-Pull-40 to +85
  • SOIC(N)/8
  • SOT/5
$0.66 @1k
MAX920Open Drain
  • SOIC(N)/8
  • SOT/5

Part NumberComp-
arators
Thresh.
(V)
Internal Ref. Accuracy
(%)
tPD
(µs)
VSUPPLY
(V)
VSUPPLY
(V)
ICC
(µA)
Prog. Hyst.VOS
(mV)
VOS
(mV)
Logic OutOper. Temp.
(°C)
Package/PinsBudgetary
Price
typminmaxmaxtypmaxSee Notes
MAX91711.2451.5221.85.51.3No110TTL/CMOS-40 to +85
  • SOIC(N)/8
  • SOT/5
$0.95 @1k
MAX918Open Drain
  • SOIC(N)/8
  • SOT/5
质量和环境数据
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
型号状况推荐替代产品封装温度RoHS/无铅
MAX918ESA停止供货MAX918ESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX918ESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX918ESA+T生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX918ESA-T停止供货MAX918ESA+TN.SO;8引脚-40°C至+85°C参考数据资料
MAX918EUK+生产中SOT,;5引脚;9mm²-40°C至+85°CRoHS/无铅:无铅
MAX918EUK+T生产中SOT,;5引脚;9mm²-40°C至+85°CRoHS/无铅:无铅
MAX918EUK-T停止供货MAX918EUK+TSOT,;5引脚;9mm²-40°C至+85°CRoHS/无铅:否
MAX917-MAX920.pdf MAX918
MAX918.pdf MAX918
MAX917-MAX920.pdf MAX920