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LTC2421 数据表(PDF) 3 Page - Linear Technology |
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LTC2421 数据表(HTML) 3 Page - Linear Technology |
3 / 32 page 3 LTC2421/LTC2422 24212f SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIH High Level Input Voltage 2.7V ≤ VCC ≤ 5.5V q 2.5 V CS, FO 2.7V ≤ VCC ≤ 3.3V 2.0 V VIL Low Level Input Voltage 4.5V ≤ VCC ≤ 5.5V q 0.8 V CS, FO 2.7V ≤ VCC ≤ 5.5V 0.6 V VIH High Level Input Voltage 2.7V ≤ VCC ≤ 5.5V (Note 9) q 2.5 V SCK 2.7V ≤ VCC ≤ 3.3V (Note 9) 2.0 V VIL Low Level Input Voltage 4.5V ≤ VCC ≤ 5.5V (Note 9) q 0.8 V SCK 2.7V ≤ VCC ≤ 5.5V (Note 9) 0.6 V IIN Digital Input Current 0V ≤ VIN ≤ VCC q –10 10 µA CS, FO IIN Digital Input Current 0V ≤ VIN ≤ VCC (Note 9) q –10 10 µA SCK CIN Digital Input Capacitance 10 pF CS, FO CIN Digital Input Capacitance (Note 9) 10 pF SCK VOH High Level Output Voltage IO = – 800µA q VCC – 0.5 V SDO VOL Low Level Output Voltage IO = 1.6mA q 0.4 V SDO VOH High Level Output Voltage IO = – 800µA (Note 10) q VCC – 0.5 V SCK VOL Low Level Output Voltage IO = 1.6mA (Note 10) q 0.4 V SCK IOZ High-Z Output Leakage q –10 10 µA SDO DIGITAL I PUTS A D DIGITAL OUTPUTS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VCC Supply Voltage q 2.7 5.5 V ICC Supply Current Conversion Mode CS = 0V (Note 12) q 200 300 µA Sleep Mode CS = VCC (Note 12) q 20 30 µA POWER REQUIRE E TS The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Input Voltage Range (Note 14) q ZSSET – 0.12VREF FSSET + 0.12VREF V FSSET Full-Scale Set Range q 0.1 + ZSSET VCC V ZSSET Zero-Scale Set Range q 0FSSET – 0.1 V CS(IN) Input Sampling Capacitance 1 pF CS(REF) Reference Sampling Capacitance 1.5 pF IIN(LEAK) Input Leakage Current CS = VCC q –100 1 100 nA IREF(LEAK) Reference Leakage Current VREF = 2.5V, CS = VCC q – 100 1 100 nA The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VREF = FSSET – ZSSET. (Note 3) A ALOG I PUT A D REFERE CE |
类似零件编号 - LTC2421 |
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类似说明 - LTC2421 |
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