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MAX1282 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX1282 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 24 page 300ksps/400ksps, Single-Supply, 4-Channel, Serial 12-Bit ADCs with Internal Reference _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS—MAX1282 (continued) (VDD1 = VDD2 = +4.5V to +5.5V, COM = GND, fOSC = 6.4MHz, 50% duty cycle, 16 clocks/conversion cycle (400ksps), external +2.5V at REF, REFADJ = VDD1, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) CONDITIONS UNITS MIN TYP MAX SYMBOL PARAMETER To power down the internal reference For small adjustments, from 1.22V 0 to 1mA output load On/off leakage current, VCOM, VCH_ = 0 or VDD1 TA = +25°C Bipolar, VCOM or VCH_ = VREF/2, referenced to COM or CH_ Unipolar, VCOM = 0 V/V +2.05 Buffer Voltage Gain V 1.4 VDD1 - 1.0 REFADJ Buffer Disable Threshold mV ±100 REFADJ Input Range V 1.22 REFADJ Output Voltage µF 0.01 10 Capacitive Bypass at REFADJ µF 4.7 10 Capacitive Bypass at REF mV/mA 0.05 2.0 Load Regulation (Note 7) ppm/°C ±15 TC VREF REF Output Temperature Coefficient mA 15 REF Short-Circuit Current V 2.480 2.500 2.520 VREF REF Output Voltage pF 18 Input Capacitance µA ±0.001 ±1 Multiplexer Leakage Current ±VREF/2 V VREF VCH_ Input Voltage Range, Single- Ended and Differential (Note 6) VIN = 0 or VDD2 In full power-down mode, fSCLK = 0 VREF = 2.500V, fSCLK = 0 VREF = 2.500V, fSCLK = fMAX (Note 8) pF CIN Input Capacitance µA ±1 IIN Input Leakage V 0.2 VHYST Input Hysteresis V 0.8 VINL Input Low Voltage V 3.0 VINH Input High Voltage 5 320 µA 200 350 REF Input Current V 1.0 VDD1 + 50mV REF Input Voltage Range ISINK = 5mA V 0.4 VOL Output Voltage Low 15 ISOURCE = 1mA V 4 VOH Output Voltage High CS = VDD2 µA ±10 IL Three-State Leakage Current CS = VDD2 pF 15 COUT Three-State Output Capacitance ANALOG INPUTS (CH3–CH0, COM) EXTERNAL REFERENCE (reference buffer disabled, reference applied to REF) INTERNAL REFERENCE DIGITAL INPUTS (DIN, SCLK, CS, SHDN) DIGITAL OUTPUTS (DOUT, SSTRB) |
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Similar Description - MAX1282 |
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