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MAX144 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX144 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 16 page +2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin µMAX _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VDD = +2.7V to +5.25V, VREF = 2.5V, 0.1µF capacitor at REF, fSCLK = 2.17MHz, 16 clocks/conversion cycle (108ksps), CH- = GND for MAX145, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) VREF = 2.5V On/off leakage current, VIN = 0 to VDD k Ω 18 25 Input Resistance µA 100 140 V 0VDD + 50mV VREF Input Voltage Range Input Current µA 0.01 10 CONDITIONS Shutdown REF Input Current µA ±0.01 ±1 Multiplexer Leakage Current V 0VREF VIN Analog Input Voltage Range pF 16 CIN Input Capacitance UNITS MIN TYP MAX SYMBOL PARAMETER Input Leakage Current IIN ±1 µA Input Hysteresis VHYS 0.2 V 0.2 5 µA Input High Voltage VIH 2.0 V 3.0 Input Low Voltage VIL 0.8 V Positive Supply Current IDD 0.9 2.0 mA Three-State Output Capacitance COUT 15 pF Positive Supply Voltage VDD 2.7 5.25 V Power-Supply Rejection Shutdown, CS/SHDN = GND Operating mode PSR ±0.15 mV CS/SHDN = VDD (Note 8) VDD = 2.7V to 5.25V, VREF = 2.5V, full-scale input (Note 9) Three-State Output Leakage Current ±10 µA Output High Voltage VOH VDD - 0.5 V Output Low Voltage Input Capacitance VIN = 0 or VDD CIN 15 pF VOL 0.4 V 0.5 VDD ≤ 3.6V VDD > 3.6V CS/SHDN = VDD ISOURCE = 0.5mA (Note 8) ISINK = 5mA ISINK = 16mA ANALOG INPUTS EXTERNAL REFERENCE DIGITAL INPUTS (CS/SHDN) AND OUTPUT (DOUT) POWER REQUIREMENTS (Note 6) (Note 7) |
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