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LTC2430CGN 数据表(PDF) 5 Page - Linear Technology |
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LTC2430CGN 数据表(HTML) 5 Page - Linear Technology |
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5 / 40 page  LTC2430/LTC2431 5 24301f Note 1: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. Note 2: All voltage values are with respect to GND. Note 3: VCC = 2.7V to 5.5V unless otherwise specified. VREF = REF + – REF–, VREFCM = (REF+ + REF–)/2; VIN = IN+ – IN–, VINCM = (IN+ + IN–)/2. Note 4: FO pin tied to GND or to VCC or to external conversion clock source with fEOSC = 153600Hz unless otherwise specified. Note 5: Guaranteed by design, not subject to test. Note 6: Integral nonlinearity is defined as the deviation of a code from a straight line passing through the actual endpoints of the transfer curve. The deviation is calculated as the measured code minus the expected value. Note 7: FO = 0V (internal oscillator) or fEOSC = 153600Hz ±2% (external oscillator). Note 8: FO = VCC (internal oscillator) or fEOSC = 128000Hz ±2% (external oscillator). Note 9: The converter is in external SCK mode of operation such that the SCK pin is used as digital input. The frequency of the clock signal driving SCK during the data output is fESCK and is expressed in kHz. Note 10: The converter is in internal SCK mode of operation such that the SCK pin is used as digital output. In this mode of operation the SCK pin has a total equivalent load capacitance CLOAD = 20pF. Note 11: The external oscillator is connected to the FO pin. The external oscillator frequency, fEOSC, is expressed in kHz. Note 12: The converter uses the internal oscillator. FO = 0V or FO = VCC. Note 13: The output noise includes the contribution of the internal calibration operations. Note 14: Guaranteed by design and test correlation. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS fEOSC External Oscillator Frequency Range q 5 2000 kHz tHEO External Oscillator High Period q 0.25 200 µs tLEO External Oscillator Low Period q 0.25 200 µs tCONV Conversion Time FO = 0V q 130.86 133.53 136.20 ms FO = VCC q 157.03 160.23 163.44 ms External Oscillator (Note 11) q 20510/fEOSC (in kHz) ms fISCK Internal SCK Frequency Internal Oscillator (Note 10) 19.2 kHz External Oscillator (Notes 10, 11) fEOSC/8 kHz DISCK Internal SCK Duty Cycle (Note 10) q 45 55 % fESCK External SCK Frequency Range (Note 9) q 2000 kHz tLESCK External SCK Low Period (Note 9) q 250 ns tHESCK External SCK High Period (Note 9) q 250 ns tDOUT_ISCK Internal SCK 24-Bit Data Output Time Internal Oscillator (Notes 10, 12) q 1.22 1.25 1.28 ms External Oscillator (Notes 10, 11) q 192/fEOSC (in kHz) ms tDOUT_ESCK External SCK 24-Bit Data Output Time (Note 9) q 24/fESCK (in kHz) ms t1 CS ↓ to SDO Low Z q 0 200 ns t2 CS ↑ to SDO High Z q 0 200 ns t3 CS ↓ to SCK ↓ (Note 10) q 0 200 ns t4 CS ↓ to SCK ↑ (Note 9) q 50 ns tKQMAX SCK ↓ to SDO Valid q 220 ns tKQMIN SDO Hold After SCK ↓ (Note 5) q 15 ns t5 SCK Set-Up Before CS ↓ q 50 ns t6 SCK Hold After CS ↓ q 50 ns The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) TI I G CHARACTERISTICS |
类似零件编号 - LTC2430CGN |
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类似说明 - LTC2430CGN |
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