Datasheet LTC2314-14 (Analog Devices) - 4

制造商Analog Devices
描述14-Bit, 4.5Msps Serial Sampling ADC in TSOT
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REFERENCE. INPUT/OUTPUT The. denotes the specifications which apply over the full operating temperature

REFERENCE INPUT/OUTPUT The denotes the specifications which apply over the full operating temperature

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LTC2314-14
REFERENCE 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 2 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
DIGITAL 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 High-Z Output Leakage Current VOUT = 0V to OVDD, CS = High l –10 10 µA COZ High-Z Output Capacitance CS = High 4 pF ISOURCE Output Source Current VOUT = 0V, OVDD = 1.8V –20 mA ISINK Output Sink Current VOUT = OVDD = 1.8V 20 mA
POWER 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 CS = 0V, SCK = 0V l 3.2 4 mA IVDD + IOVDD Operational Mode l 6.2 7.2 mA Nap Mode 1.8 mA Sleep Mode l 0.8 5 µA PD Power Dissipation, Static Mode CS = 0V, SCK = 0V l 16 20 mW Operational Mode l 31 36 mW Nap Mode 9 mW Sleep Mode l 4 25 µW 231414fa 4 For more information www.linear.com/LTC2314-14