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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC1096AI датащи(PDF) 28 Page - Linear Technology |
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LTC1096AI датащи(HTML) 28 Page - Linear Technology |
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28 / 28 page  28 LTC1096/LTC1096L LTC1098/LTC1098L © LINEAR TECHNOLOGY CORPORATION 1994 10968fb LT/TP 0397 5K REV B • PRINTED IN USA APPLICATI TYPICAL Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417q (408)432-1900 FAX: (408) 434-0507qTELEX: 499-3977q www.linear-tech.com RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LTC1196/LTC1198 8-Pin SO, 1Msps, 8-Bit ADCs Low Power, Small Size, Low Cost LTC1286/LTC1298 8-Pin SO, 5V Micropower, 12-Bit ADCs 1- or 2-Channel, Auto Shutdown LTC1285/LTC1298 8-Pin SO, 3V Micropower, 12-Bit ADCs 1- or 2-Channel, Auto Shutdown LTC1400 5V High Speed,Serial 12-Bit ADC 400ksps, Complete with VREF, CLK, Sample-and-Hold LTC1594/LTC1598 4- and 8-Channel, 5V Micropower, 12-Bit ADCs Low Power, Small Size, Low Cost LTC1594L/LTC1598L 4- and 8-Channel, 3V Micropower, 12-Bit ADCs Low Power, Small Size, Low Cost A/D Conversion for 3V Systems The LTC1096/LTC1098 are ideal for 3V systems. Figure 17 shows a 3V to 6V battery current monitor that draws only 70 µA from the battery it monitors. The battery current is sensed with the 0.02 Ω resistor and amplified by the LT1178. The LTC1096 digitizes the amplifier output and sends it to the microprocessor in serial format. The LT1004 provides the full-scale reference for the ADC. The other half of the LTC1178 is used to provide low battery detection. The circuit’s 70 µA supply current is dominated by the op amps and the reference. The circuit can be located near the battery and data transmitted serially to the microprocessor. Figure 17. This 0A to 2A Battery Current Monitor Draws Only 70 µA from a 3V Battery – + 750k 0.1 µF 0.02 Ω FOR 2A FULL SCALE 0.2 Ω FOR 0.2A FULL SCALE 24.9k L O A D 1/2 LT1178 LTC1096 CS GND VCC CLK DOUT VREF LT1004-1.2 73.2k 470k 20M 470k LO BATTERY 0.1 µF + – 3V TO 6V TO µP – + 1/2 LT1178 LTC1096/8 • F17 |
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