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Os motores de busca de Datasheet de Componentes eletrônicos |
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Os motores de busca de Datasheet de Componentes eletrônicos |
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LTC1749 Folha de dados(PDF) 2 Page - Linear Technology |
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LTC1749 Folha de dados(HTML) 2 Page - Linear Technology |
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2 / 20 page  2 LTC1749 1749f PARAMETER CONDITIONS MIN TYP MAX UNITS Resolution (No Missing Codes) q 12 Bits Integral Linearity Error (Note 6) – 1.0 ±0.4 1.0 LSB q –1.5 1.5 LSB Differential Linearity Error q –0.8 ±0.2 0.8 LSB Offset Error (Note 7) External Reference (VSENSE = 1.125V, PGA = 0) –35 ±835 mV Gain Error External Reference (VSENSE = 1.125V, PGA = 0) –3.5 ±1 3.5 %FS Full-Scale Tempco Internal Reference ±40 ppm/ °C External Reference (VSENSE = 1.125V) ±20 ppm/ °C Offset Tempco ±20 µV/°C Input Referred Noise (Transition Noise) VSENSE = 1.125V, PGA = 0 0.23 LSBRMS ORDER PART NUMBER OVDD = VDD (Notes 1, 2) Supply Voltage (VDD) ............................................. 5.5V Analog Input Voltage (Note 3) .... – 0.3V to (VDD + 0.3V) Digital Input Voltage (Note 4) ..... – 0.3V to (VDD + 0.3V) Digital Output Voltage ................. – 0.3V to (VDD + 0.3V) OGND Voltage .............................................. – 0.3V to 1V Power Dissipation ............................................ 2000mW Operating Temperature Range LTC1749C ............................................... 0 °C to 70°C LTC1749I ............................................ – 40 °C to 85°C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C LTC1749CFW LTC1749IFW TJMAX = 150°C, θJA = 35°C/W The q indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION CO VERTER CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Analog Input Range (Note 8) 4.75V ≤ VDD ≤ 5.25V q ±0.7 to ±1.125 V IIN Analog Input Leakage Current 0 < AIN+, AIN– < VDD q –1 1 µA CIN Analog Input Capacitance Sample Mode ENC < ENC 6.9 pF Hold Mode ENC > ENC 2.4 pF tACQ Sample-and-Hold Acquisition Time q 56 ns tAP Sample-and-Hold Acquisition Delay Time 0 ns tJITTER Sample-and-Hold Acquisition Delay Time Jitter 0.15 psRMS CMRR Analog Input Common Mode Rejection Ratio 1.5V < (AIN– = AIN+) < 3V 80 dB The q indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) A ALOG I PUT Consult LTC Marketing for parts specified with wider operating temperature ranges. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 TOP VIEW FW PACKAGE 48-LEAD PLASTIC TSSOP 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 SENSE VCM GND AIN + AIN – GND VDD VDD GND REFLB REFHA GND GND REFLA REFHB GND VDD VDD GND VDD GND MSBINV ENC ENC OF OGND D11 D10 D9 OVDD D8 D7 D6 D5 OGND GND GND D4 D3 D2 OVDD D1 D0 NC NC OGND CLKOUT PGA |
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