LTC1440 - 具有基准的超低功率单/双通道比较器
The LTC®1440/LTC1441/LTC1442 are ultralow power single and dual comparators with built-in references. The comparators feature less than 3.7µA supply current over temperature (LTC1440), a 1.182V ±1% reference, programmable hysteresis (LTC1440/LTC1442) and TTL/CMOS outputs that sink and source current. The reference output can drive a bypass capacitor of up to 0.01µF without oscillation.
The comparators operate from a single 2V to 11V supply or a dual ±1V to ±5.5V supply (LTC1440). Comparator hysteresis is easily programmed by using two resistors and the HYST pin (LTC1440/LTC1442). Each comparator’s input operates from the negative supply to within 1.3V of the positive supply. The comparator output stage can continuously source up to 40mA. By eliminating the cross-conducting current that normally happens when the comparator changes logic states, the power supply glitches are eliminated.
The LTC1440 is available in 8-pin PDIP, SO, MSOP and DFN packages. The LTC1441/LTC1442 are available in 8-pin PDIP and SO packages.
特点
典型应用  | 应用
封装信息     |
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
|---|---|---|---|---|
| LTC1440CDD#PBF | 3x3 DFN-8 | C | $2.36 | $1.65 |
| LTC1440CDD#TRPBF | 3x3 DFN-8 | C | $1.75 | |
| LTC1440CMS8#PBF | MS-8 | C | $2.15 | $1.65 |
| LTC1440CMS8#TRPBF | MS-8 | C | $1.71 | |
| LTC1440CN8#PBF | N-8 | C | $1.85 | $1.45 |
| LTC1440CS8#PBF | SO-8 | C | $1.85 | $1.45 |
| LTC1440CS8#TRPBF | SO-8 | C | $1.51 | |
| LTC1440IDD#PBF | 3x3 DFN-8 | I | $2.64 | $1.85 |
| LTC1440IDD#TRPBF | 3x3 DFN-8 | I | $1.95 | |
| LTC1440IMS8#PBF | MS-8 | I | $2.64 | $1.85 |
| LTC1440IMS8#TRPBF | MS-8 | I | $1.91 | |
| LTC1440IN8#PBF | N-8 | I | $2.20 | $1.70 |
| LTC1440IS8#PBF | SO-8 | I | $2.20 | $1.70 |
| LTC1440IS8#TRPBF | SO-8 | I | $1.76 |
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