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MAX1272EPA Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX1272EPA Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 20 page Fault-Protected, 12-Bit ADCs with Software-Selectable Input Range _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VDD = 4.75V to 5.25V, unipolar/bipolar input range, external reference mode, VREF = 4.096V, CREF = 1.0µF, fSCLK = 1.4MHz, 50% duty cycle, CLOAD = 50pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS ±10V (MAX1272) or ±VREF (MAX1273) range 5 ±5V (MAX1272) or ±VREF / 2 (MAX1273) range 2.5 0 to 10V (MAX1272) or 0 to VREF (MAX1273) range 2.5 Small-Signal Bandwidth BW-3dB 0 to 5V (MAX1272) or 0 to VREF / 2 (MAX1273) range 1.25 MHz RNG = 1 0 10 MAX1272 RNG = 0 0 5 RNG = 1 0 VREF Unipolar MAX1273 RNG = 0 0 VREF / 2 RNG = 1 -10 +10 MAX1272 RNG = 0 -5 +5 RNG = 1 -VREF +VREF Input Voltage Range (Tables 2, 3) VIN Bipolar MAX1273 RNG = 0 -VREF / 2 +VREF / 2 V 0 to 10V range -10 +860 MAX1272 0 to 5V range -10 +430 0 to VREF range -10 +10 Unipolar MAX1273 0 to VREF / 2 range -10 +10 ±10V range -1400 +860 MAX1272 ±5V range -720 +430 ±VREF range -1400 +10 Input Current IIN Bipolar MAX1273 ±VREF / 2 range -720 +10 µA Input Capacitance 40 pF INTERNAL REFERENCE REF Output Voltage VREF 4.036 4.096 4.156 V MAX127_ C ±15 REF Output Tempco TC VREF MAX127_ E ±30 ppm/°C Output Short-Circuit Current REF shorted to GND 40 mA Load Regulation 0 to 0.5mA output current 0.7 10 mV Capacitive Bypass at REF 1µF REFERENCE INPUT (Reference buffer disabled, reference input applied to REF) Input Voltage Range 2.40 4.18 V |
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