Datasheet LTC2378-18 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 18-Bit, 1Msps, Low Power SAR ADC with 102dB SNR |
| 页数 / 页 | 26 / 4 — reFerence inpuT. The. denotes the specifications which apply over the … |
| 文件格式/大小 | PDF / 2.0 Mb |
| 文件语言 | 英语 |
reFerence inpuT. The. denotes the specifications which apply over the full operating temperature range, otherwise
该数据表的模型线
- LTC2378CDE-18#PBF LTC2378CDE-18#PBF LTC2378CDE-18#TRPBF LTC2378CDE-18#TRPBF LTC2378CMS-18#PBF LTC2378CMS-18#PBF LTC2378CMS-18#TRPBF LTC2378CMS-18#TRPBF LTC2378HMS-18#PBF LTC2378HMS-18#PBF LTC2378HMS-18#TRPBF LTC2378HMS-18#TRPBF LTC2378IDE-18#PBF LTC2378IDE-18#PBF LTC2378IDE-18#TRPBF LTC2378IDE-18#TRPBF LTC2378IMS-18#PBF LTC2378IMS-18#PBF LTC2378IMS-18#TRPBF LTC2378IMS-18#TRPBF
文件文字版本
LTC2378-18
reFerence inpuT 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 Reference Voltage (Note 5) l 2.5 5.1 V IREF Reference Input Current (Note 9) l 0.65 0.75 mA VIHDGC High Level Input Voltage REF/DGC Pin l 0.8VREF V VILDGC Low Level Input Voltage REF/DGC Pin l 0.2VREF 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 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 2.375 2.5 2.625 V OVDD Supply Voltage l 1.71 5.25 V IVDD Supply Current 1Msps Sample Rate l 5.4 6.3 mA IOVDD Supply Current 1Msps Sample Rate (CL = 20pF) 0.2 mA IPD Power Down Mode Conversion Done (IVDD + IOVDD + IREF) l 0.9 90 µA IPD Power Down Mode Conversion Done (IVDD + IOVDD + IREF, H-Grade) l 0.9 140 µA PD Power Dissipation 1Msps Sample Rate 13.5 15.8 mW Power Down Mode Conversion Done (IVDD + IOVDD + IREF) 2.25 225 µW Power Down Mode Conversion Done (IVDD + IOVDD + IREF, H-Grade) 2.25 315 µW
aDc Timing 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
fSMPL Maximum Sampling Frequency l 1 Msps tCONV Conversion Time l 460 527 ns tACQ Acquisition Time tACQ = tCYC – tCONV – tBUSYLH (Note 10) l 460 ns tCYC Time Between Conversions l 1 µs tCNVH CNV High Time l 20 ns tBUSYLH CNV↑ to BUSY Delay CL = 20pF l 13 ns tCNVL Minimum Low Time for CNV (Note 11) l 20 ns tQUIET SCK Quiet Time from CNV↑ (Note 10) l 20 ns tSCK SCK Period (Notes 11, 12) l 10 ns 237818fa 4 For more information www.linear.com/LTC2378-18 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input 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
reFerence inpuT 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 Reference Voltage (Note 5) l 2.5 5.1 V IREF Reference Input Current (Note 9) l 0.65 0.75 mA VIHDGC High Level Input Voltage REF/DGC Pin l 0.8VREF V VILDGC Low Level Input Voltage REF/DGC Pin l 0.2VREF 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 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 2.375 2.5 2.625 V OVDD Supply Voltage l 1.71 5.25 V IVDD Supply Current 1Msps Sample Rate l 5.4 6.3 mA IOVDD Supply Current 1Msps Sample Rate (CL = 20pF) 0.2 mA IPD Power Down Mode Conversion Done (IVDD + IOVDD + IREF) l 0.9 90 µA IPD Power Down Mode Conversion Done (IVDD + IOVDD + IREF, H-Grade) l 0.9 140 µA PD Power Dissipation 1Msps Sample Rate 13.5 15.8 mW Power Down Mode Conversion Done (IVDD + IOVDD + IREF) 2.25 225 µW Power Down Mode Conversion Done (IVDD + IOVDD + IREF, H-Grade) 2.25 315 µW
aDc Timing 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
fSMPL Maximum Sampling Frequency l 1 Msps tCONV Conversion Time l 460 527 ns tACQ Acquisition Time tACQ = tCYC – tCONV – tBUSYLH (Note 10) l 460 ns tCYC Time Between Conversions l 1 µs tCNVH CNV High Time l 20 ns tBUSYLH CNV↑ to BUSY Delay CL = 20pF l 13 ns tCNVL Minimum Low Time for CNV (Note 11) l 20 ns tQUIET SCK Quiet Time from CNV↑ (Note 10) l 20 ns tSCK SCK Period (Notes 11, 12) l 10 ns 237818fa 4 For more information www.linear.com/LTC2378-18 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input 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