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LTC1863L Datasheet(PDF) 4 Page - Linear Technology |
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LTC1863L Datasheet(HTML) 4 Page - Linear Technology |
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4 / 16 page  LTC1863L/LTC1867L 4 1863l7lfd For more information www.linear.com/LTC1863L DIGITAL INPUTS AND DIGITAL OUTPUTS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOL PARAMETER CONDITIONS LTC1863L/LTC1867L/LTC1867LA UNITS MIN TYP MAX IIN Digital Input Current VIN = 0V to VDD l ±10 µA CIN Digital Input Capacitance 2 pF VOH High Level Output Voltage (SDO) VDD = 2.7V, IO = –10µA VDD = 2.7V, IO = –200µA l 23 2.68 2.65 V V VOL Low Level Output Voltage (SDO) VDD = 2.7V, IO = 160µA VDD = 2.7V, IO = 1.6µA l 0.05 0.15 0.4 V V ISOURCE Output Source Current SDO = 0V –9.7 mA ISINK Output Sink Current SDO = VDD 6 mA Hi-Z Output Leakage Hi-Z Output Capacitance CS/CONV = High, SDO = 0V or VDD CS/CONV = High (Note 10) l l ±10 15 µA pF Data Format Unipolar Bipolar Straight Binary Two’s Complement POWER REQUIREMENTS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOL PARAMETER CONDITIONS LTC1863L/LTC1867L/LTC1867LA UNITS MIN TYP MAX VDD Supply Voltage (Note 9) 2.7 3.6 V IDD Supply Current fSAMPLE = 175ksps, Internal REF NAP Mode SLEEP Mode l l 0.75 170 0.2 1 3 mA µA µA PDISS Power Dissipation fSAMPLE = 175ksps l 2 2.7 mW TIMING CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOL PARAMETER CONDITIONS LTC1863L/LTC1867L/LTC1867LA UNITS MIN TYP MAX fSAMPLE Maximum Sampling Frequency l 175 kHz tCONV Conversion Time l 3.2 3.7 µs tACQ Acquisition Time l 2.01 1.68 µs fSCK SCK Frequency 20 MHz t1 CS/CONV High Time Short CS/CONV Pulse Mode l 40 100 ns t2 SDO Valid After SCK↓ CL = 25pF (Note 11) l 22 47 ns t3 SDO Valid Hold Time After SCK↓ CL = 25pF l 5 17 ns t4 SDO Valid After CS/CONV↓ CL = 25pF l 20 40 ns t5 SDI Setup Time Before SCK↑ l 15 –6 ns t6 SDI Hold Time After SCK↑ l 15 6 ns t7 SLEEP Mode Wake-Up Time CREFCOMP = 10µF, CVREF = 2.2µF 80 ms t8 Bus Relinquish Time After CS/CONV↑ CL = 25pF l 30 50 ns Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: All voltage values are with respect to GND (unless otherwise noted). Note 3: When these pin voltages are taken below GND or above VDD, they will be clamped by internal diodes. This product can handle input currents up to 100mA without latchup. |
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