Datasheet LTC2312-12 (Analog Devices) - 4

LTC2312-12
r eFerence inpuT/ouTpuT The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VREF VREF Output Voltage 2.7V ≤ VDD ≤ 3.6V l 2.040 2.048 2.056 V 4.75 ≤ VDD ≤ 5.25V l 4.080 4.096 4.112 V VREF Temperature Coefficient l 7 20 ppm/°C VREF Output Resistance Normal Operation, ILOAD = 0mA to 5mA 1 Ω Overdrive Condition 52 kΩ (VREFIN ≥ VREFOUT + 50mV) VREF Line Regulation 2.7V ≤ VDD ≤ 3.6V 0.4 mV/V 4.75 ≤ VDD ≤ 5.25V 0.2 mV/V VREF 2.048V/4.096V Supply Threshold 4.15 V VREF 2.048V/4.096V Supply Threshold Hysteresis 150 mV VREF Input Voltage Range 2.7V ≤ VDD ≤ 3.6V l VREF + 50mV VDD V (External Reference Input) 4.75 ≤ VDD ≤ 5.25V l VREF + 50mV 4.3 V
Digi Tal inpuTs anD DigiTal ouTpuTs The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage l 0.8 • OVDD V VIL Low Level Input Voltage l 0.2 • OVDD V IIN Digital Input Current VIN = 0V to OVDD l –10 10 μA CIN Digital Input Capacitance 5 pF VOH High Level Output Voltage IO = –500µA (Source) l OVDD–0.2 V VOL Low Level Output Voltage IO = 500µA (Sink) l 0.2 V IOZ Hi-Z Output Leakage Current VOUT = 0V to OVDD, CONV = High l –10 10 µA COZ Hi-Z Output Capacitance CONV = High 4 pF ISOURCE Output Source Current VOUT = 0V, OVDD = 1.8V –20 mA ISINK Output Sink Current VOUT = OVDD = 1.8V 20 mA
p ower requireMenTs The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VDD Supply Voltage 3V Operational Range l 2.7 3 3.6 V 5V Operational Range l 4.75 5 5.25 V OVDD Digital Output Supply Voltage l 1.71 5.25 V ITOTAL = Supply Current, Static Mode CONV = 0V, SCK = 0V l 3.4 4.3 mA IVDD + IOVDD Operational Mode l 3 4 mA Nap Mode 2 mA Sleep Mode l 0.2 5 µA PD Power Dissipation, Static Mode CONV = 0V, SCK = 0V l 17 21.5 mW Operational Mode l 15 20 mW Nap Mode 10 mW Sleep Mode l 1 25 µW 231212fa 4 For more information www.linear.com/LTC2312-12 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input/Output Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts