Datasheet LTC2337-18 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 18-Bit, 500ksps, ±10.24V True Bipolar, Fully Differential Input ADC with 100dB SNR |
| 页数 / 页 | 26 / 4 — INTERNAL REFERENCE CHARACTERISTICS. The. denotes the specifications which … |
| 文件格式/大小 | PDF / 749 Kb |
| 文件语言 | 英语 |
INTERNAL REFERENCE CHARACTERISTICS. The. denotes the specifications which apply over the
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LTC2337-18
INTERNAL REFERENCE CHARACTERISTICS 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
VREFIN Internal Reference Output Voltage 2.043 2.048 2.053 V VREFIN Temperature Coefficient (Note 14) l 2 20 ppm/°C REFIN Output Impedance 15 kΩ VREFIN Line Regulation VDD = 4.75V to 5.25V 0.08 mV/V REFIN Input Voltage Range (REFIN Overdriven) (Note 5) 1.25 2.4 V
REFERENCE BUFFER CHARACTERISTICS 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
VREFBUF Reference Buffer Output Voltage VREFIN = 2.048V l 4.091 4.096 4.101 V REFBUF Input Voltage Range (REFBUF Overdriven) (Notes 5, 9) l 2.5 5 V REFBUF Output Impedance VREFIN = 0V 13 kΩ IREFBUF REFBUF Load Current VREFBUF = 5V (REFBUF Overdriven) (Notes 9, 10) l 0.72 0.8 mA VREFBUF = 5V, Nap Mode (REFBUF Overdriven) (Note 9) 0.39 mA
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 l OVDD – 0.2 V VOL Low Level Output Voltage IO = 500µA l 0.2 V IOZ Hi-Z Output Leakage Current VOUT = 0V to OVDD l –10 10 µA ISOURCE Output Source Current VOUT = 0V –10 mA ISINK Output Sink Current VOUT = OVDD 10 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 l 4.75 5 5.25 V OVDD Supply Voltage l 1.71 5.25 V IVDD Supply Current 500ksps Sample Rate (IN+ = IN– = 0V) l 7 8.5 mA IOVDD Supply Current 500ksps Sample Rate (CL = 20pF) 0.1 mA INAP Nap Mode Current Conversion Done (IVDD + IOVDD) l 3.9 4.6 mA ISLEEP Sleep Mode Current Sleep Mode (IVDD + IOVDD) l 60 225 μA PD Power Dissipation 500ksps Sample Rate (IN+ = IN– = 0V) l 35 42.5 mW Nap Mode Conversion Done (IVDD + IOVDD) l 19.5 23 mW Sleep Mode Sleep Mode (IVDD + IOVDD) l 0.3 1.1 mW 233718fa 4 For more information www.linear.com/LTC2337-18 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Reference Buffer Characteristics Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Revision History Typical Application Related Parts
INTERNAL REFERENCE CHARACTERISTICS 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
VREFIN Internal Reference Output Voltage 2.043 2.048 2.053 V VREFIN Temperature Coefficient (Note 14) l 2 20 ppm/°C REFIN Output Impedance 15 kΩ VREFIN Line Regulation VDD = 4.75V to 5.25V 0.08 mV/V REFIN Input Voltage Range (REFIN Overdriven) (Note 5) 1.25 2.4 V
REFERENCE BUFFER CHARACTERISTICS 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
VREFBUF Reference Buffer Output Voltage VREFIN = 2.048V l 4.091 4.096 4.101 V REFBUF Input Voltage Range (REFBUF Overdriven) (Notes 5, 9) l 2.5 5 V REFBUF Output Impedance VREFIN = 0V 13 kΩ IREFBUF REFBUF Load Current VREFBUF = 5V (REFBUF Overdriven) (Notes 9, 10) l 0.72 0.8 mA VREFBUF = 5V, Nap Mode (REFBUF Overdriven) (Note 9) 0.39 mA
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 l OVDD – 0.2 V VOL Low Level Output Voltage IO = 500µA l 0.2 V IOZ Hi-Z Output Leakage Current VOUT = 0V to OVDD l –10 10 µA ISOURCE Output Source Current VOUT = 0V –10 mA ISINK Output Sink Current VOUT = OVDD 10 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 l 4.75 5 5.25 V OVDD Supply Voltage l 1.71 5.25 V IVDD Supply Current 500ksps Sample Rate (IN+ = IN– = 0V) l 7 8.5 mA IOVDD Supply Current 500ksps Sample Rate (CL = 20pF) 0.1 mA INAP Nap Mode Current Conversion Done (IVDD + IOVDD) l 3.9 4.6 mA ISLEEP Sleep Mode Current Sleep Mode (IVDD + IOVDD) l 60 225 μA PD Power Dissipation 500ksps Sample Rate (IN+ = IN– = 0V) l 35 42.5 mW Nap Mode Conversion Done (IVDD + IOVDD) l 19.5 23 mW Sleep Mode Sleep Mode (IVDD + IOVDD) l 0.3 1.1 mW 233718fa 4 For more information www.linear.com/LTC2337-18 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Reference Buffer Characteristics Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Revision History Typical Application Related Parts