Datasheet LTC2312-14 (Analog Devices) - 4
| Fabricante | Analog Devices |
| Descripción | 14-Bit, 500ksps Serial Sampling ADC in TSOT |
| Páginas / Página | 22 / 4 — REFERENCE. INPUT/OUTPUT The. denotes the specifications which apply over … |
| Formato / tamaño de archivo | PDF / 635 Kb |
| Idioma del documento | Inglés |
REFERENCE. INPUT/OUTPUT The. denotes the specifications which apply over the full operating temperature
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LTC2312-14
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, 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
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 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
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 CONV = 0V, SCK = 0V l 3.4 4.3 mA IVDD + IOVDD Operational Mode l 3.2 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 16 20 mW Nap Mode 10 mW Sleep Mode l 1 25 µW 231214fa 4 For more information www.linear.com/LTC2312-14 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information 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 Related Parts
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, 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
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 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
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 CONV = 0V, SCK = 0V l 3.4 4.3 mA IVDD + IOVDD Operational Mode l 3.2 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 16 20 mW Nap Mode 10 mW Sleep Mode l 1 25 µW 231214fa 4 For more information www.linear.com/LTC2312-14 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information 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 Related Parts