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MAX1147 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX1147 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 25 page Multichannel, True-Differential, Serial, 14-Bit ADCs _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VDD = 5V (MAX1146/MAX1148), VDD = 3.3V (MAX1147/MAX1149), SHDN = VDD, VCOM = 0, fSCLK = 2.1MHz, external clock (50% duty cycle), 18 clocks/conversion (116ksps), VREFADJ = VDD, CREF = 2.2µF, external +4.096V reference at REF (MAX1146/ MAX1148), external 2.500V reference at REF (MAX1147/MAX1149), TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 18 clocks/conversion 60.3 Internal clock mode, fSCLK = 2.1MHz 24 clocks/conversion 51.5 18 clocks/conversion 116.66 Throughput Rate fSAMPLE External clock mode, fSCLK = 2.1MHz 24 clocks/conversion 87.50 ksps T/H Acquisition Time tACQ 1.4 µs Aperture Delay tAD 20 ns Aperture Jitter tAJ <50 ps External clock mode 0.1 2.1 Serial Clock Frequency fSCLK Internal clock mode 0 2.1 MHz Internal Clock Frequency 2.1 MHz ANALOG INPUTS (CH0–CH7, COM) Unipolar, COM = 0 0 VREF Input Voltage Range, Single- Ended and Differential (Note 6) Bipolar, COM = VREF / 2, single-ended ±VREF / 2 V Multiplexer Leakage Current On/off-leakage current, VCH_ = 0 to VDD ±0.01 ±1 µA Input Capacitance 18 pF INTERNAL REFERENCE (CREF = 2.2µF, CREFADJ = 0.01µF) MAX1147/MAX1149, TA = +25°C 2.480 2.500 2.520 REF Output Voltage VREF MAX1146/MAX1148, TA = +25°C 4.076 4.096 4.116 V REF Short-Circuit Current IREFSC REF = DGND 20 mA MAX114_ BC _ _ ±30 ±50 VREF Tempco (Note 7) MAX114_ BE _ _ ±40 ±60 ppm/°C Load Regulation 0 to 0.2mA output load (Note 8) 2.0 mV Capacitive Bypass at REF 2µF Capacitive Bypass at REFADJ 0.01 µF REFADJ Output Voltage 1.250 V REFADJ Input Range ±18 mV REFADJ Logic High Pull REFADJ high to disable the internal bandgap reference and reference buffer VDD - 0.25V V MAX1147/MAX1149 2.000 Reference Buffer Voltage Gain MAX1146/MAX1148 3.277 V/V |
Similar Part No. - MAX1147 |
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Similar Description - MAX1147 |
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