LTC1843 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
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应用
- Battery-Powered System Monitoring
- Threshold Detectors
- Window Comparators
- Oscillator Circuits
典型应用图
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LTC1843 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) * |
| LTC1843CS8 |
SO |
8 |
C |
$1.35 |
$1.15 |
| LTC1843CS8#PBF |
SO |
8 |
C |
$1.35 |
$1.15 |
| LTC1843CS8#TR |
SO |
8 |
C |
|
$1.21 |
| LTC1843CS8#TRPBF |
SO |
8 |
C |
|
$1.21 |
| LTC1843IS8 |
SO |
8 |
I |
$1.65 |
$1.40 |
| LTC1843IS8#PBF |
SO |
8 |
I |
$1.65 |
$1.40 |
| LTC1843IS8#TR |
SO |
8 |
I |
|
$1.46 |
| LTC1843IS8#TRPBF |
SO |
8 |
I |
|
$1.46 |
LTC1843 数据手册及相关资料下载
- 数据手册(英文) : LTC1841/LTC1842/LTC1843 - Ultralow Power Dual Comparators with Reference.PDF
- 可靠性数据 : R312 Reliability Data .PDF
