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LTC1850CFW Datasheet(PDF) 3 Page - Linear Technology |
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LTC1850CFW Datasheet(HTML) 3 Page - Linear Technology |
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3 / 28 page  3 LTC1850/LTC1851 18501f SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Analog Input Range (Note 9) 4.75V ≤ VDD ≤ 5.25V Unipolar, Gain = 1 (PGA = 1) 0 – REFCOMP V Unipolar, Gain = 2 (PGA = 0) 0 – REFCOMP/2 V Bipolar, Gain = 1 (PGA = 1) ±REFCOMP/2 V Bipolar, Gain = 2 (PGA = 0) ±REFCOMP/4 V IIN Analog Input Leakage Current VIN > 0V < VDD, All Channels q ±1 µA CIN Analog Input Capacitance Between Conversions (Gain = 1) 15 pF Between Conversions (Gain = 2) 25 pF During Conversions 5 pF tACQ Sample-and-Hold Acquisition Time q 50 150 ns tS(MUX) Multiplexer Settling Time (Includes tACQ) q 50 150 ns tAP Sample-and-Hold Aperture Delay Time – 0.5 ns tjitter Sample-and-Hold Aperture Delay Time Jitter 2 psRMS CMRR Analog Input Common Mode Rejection Ratio 0V < (AIN– = AIN+) < 5V 60 dB The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) A ALOG I PUT LTC1850 LTC1851 PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS Resolution (No Missing Codes) q 10 12 Bits Integral Linearity Error (Note 7) q ±0.25 ±0.5 ±0.35 ±1LSB Differential Linearity Error q ±0.25 ±0.5 ±0.25 ±1LSB Offset Error (Bipolar and Unipolar) (Note 8) Gain = 1 (PGA = 1) REFCOMP ≥ 2V ±2 ±5LSB Gain = 1 (PGA = 1) REFCOMP ≥ 2V q ±0.5 ±2 ±1 ±7LSB Gain = 2 (PGA = 0) q ±1 ±4 ±2 ±10 LSB Offset Error Match ±0.5 ±1LSB Unipolar Gain Error With External 4.096V Reference Gain = 1 (PGA = 1) Applied to REFCOMP (Note 12) ±2 ±6LSB Gain = 2 (PGA = 0) ±4 ±10 LSB Unipolar Gain Error Match ±0.5 ±1LSB Bipolar Gain Error With External 4.096V Reference Gain = 1 (PGA = 1) Applied to REFCOMP (Note 12) ±2 ±6LSB Gain = 2 (PGA = 0) ±4 ±10 LSB Bipolar Gain Error Match ±0.5 ±1LSB Full-Scale Error Temperature Coefficient 15 15 ppm/ °C The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 5, 6) CO VERTER CHARACTERISTICS |
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