LTC1841 Ultralow Power Dual Comparators with Reference

The LTC™1841/LTC1842/LTC1843 are ultralow power dual comparators with built-in reference (LTC1842/LTC1843). The comparators feature less than 5.7µA supply current over temperature, a 1.182V ±1% reference, programmable hysteresis and open-drain outputs that sink current. The reference output can drive a bypass capacitor of up to 0.01µF without oscillation. The LTC1841 operates from a single 2V to 11V supply or a dual ±1V to ±5.5V supply. The LTC1842/LTC1843 operate from a single 2.5V to 11V supply or a dual �1.25V to ±5.5V supply. The LTC1842/LTC1843 hysteresis is easily programmed by using two resistors and the HYST pin. The comparators� input operates from the negative supply to within 1.3V of the positive supply. The comparators� output stage can typically sink greater than 20mA. By eliminating the cross-conduction current that normally happens when the comparators change logic states, power supply glitches are eliminated. The LTC1841/LTC1842/LTC1843 are available in SO-8 packages

产品特点 Features
  • Ultralow Quiescent Current: 3.5µA Typ
  • Open-Drain Outputs Typically Sink Greater Than 20mA
  • Wide Supply Range: (LTC1841)
    Single: 2V to 11V
    Dual: ±1V to ±5.5V
  • Input Voltage Range Includes the Negative Supply
  • Reference Output Drives 0.01µF Capacitor
  • Adjustable Hysteresis
  • 12µs Propagation Delay with 10mV Overdrive
  • No Current Spike When Switching
参数
LTC1841 参数
应用
  • Battery-Powered System Monitoring
  • Threshold Detectors
  • Window Comparators
  • Oscillator Circuits
典型应用图
LTC1841 典型应用
LTC1841 订购信息和价格参考Package Variations and Pricing
器件型号 封装 引脚 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量) *
LTC1841CS8 SO 8 C $1.35  $1.15 
LTC1841CS8#PBF SO 8 C $1.35  $1.15 
LTC1841CS8#TR SO 8 C $1.21 
LTC1841CS8#TRPBF SO 8 C $1.21 
LTC1841IS8 SO 8 I $1.65  $1.40 
LTC1841IS8#PBF SO 8 I $1.65  $1.40 
LTC1841IS8#TR SO 8 I $1.46 
LTC1841IS8#TRPBF SO 8 I $1.46 
LTC1841 数据手册及相关资料下载
  1. 数据手册(英文) : LTC1841/LTC1842/LTC1843 - Ultralow Power Dual Comparators with Reference.PDF
  2. 可靠性数据 : R312 Reliability Data .PDF