Datasheet LTC2377-18 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | 18-Bit, 500ksps, Low Power SAR ADC with 102dB SNR |
| Pages / Page | 26 / 4 — REFERENCE INPUT. The. denotes the specifications which apply over the … |
| File Format / Size | PDF / 764 Kb |
| Document Language | English |
REFERENCE INPUT. The. denotes the specifications which apply over the full operating temperature range, otherwise
Model Line for this Datasheet
- LTC2377CDE-18#PBF LTC2377CDE-18#PBF LTC2377CDE-18#TRPBF LTC2377CDE-18#TRPBF LTC2377CMS-18#PBF LTC2377CMS-18#PBF LTC2377CMS-18#TRPBF LTC2377CMS-18#TRPBF LTC2377HMS-18#PBF LTC2377HMS-18#PBF LTC2377HMS-18#TRPBF LTC2377HMS-18#TRPBF LTC2377IDE-18#PBF LTC2377IDE-18#PBF LTC2377IDE-18#TRPBF LTC2377IDE-18#TRPBF LTC2377IMS-18#PBF LTC2377IMS-18#PBF LTC2377IMS-18#TRPBF LTC2377IMS-18#TRPBF
Text Version of Document
LTC2377-18
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 0.32 0.4 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 500ksps Sample Rate l 2.7 3.2 mA IOVDD Supply Current 500ksps Sample Rate (CL = 20pF) 0.1 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 500ksps Sample Rate 6.75 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 500 ksps tCONV Conversion Time l 1 1.5 µs tACQ Acquisition Time tACQ = tCYC – tHOLD (Note 10) l 1.460 µs tHOLD Maximum Time Between Acquisitions l 540 ns tCYC Time Between Conversions l 2 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 237718fa 4 For more information www.linear.com/LTC2377-18 Document Outline Features Applications Description 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 0.32 0.4 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 500ksps Sample Rate l 2.7 3.2 mA IOVDD Supply Current 500ksps Sample Rate (CL = 20pF) 0.1 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 500ksps Sample Rate 6.75 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 500 ksps tCONV Conversion Time l 1 1.5 µs tACQ Acquisition Time tACQ = tCYC – tHOLD (Note 10) l 1.460 µs tHOLD Maximum Time Between Acquisitions l 540 ns tCYC Time Between Conversions l 2 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 237718fa 4 For more information www.linear.com/LTC2377-18 Document Outline Features Applications Description 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
