Datasheet LTC2338-18 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | 18-Bit, 1Msps, ±10.24V True Bipolar, Fully Differential Input ADC with 100dB SNR |
| Pages / Page | 26 / 4 — REFERENCE BUFFER CHARACTERISTICS. The. denotes the specifications which … |
| File Format / Size | PDF / 1.8 Mb |
| Document Language | English |
REFERENCE BUFFER CHARACTERISTICS. The. denotes the specifications which apply over the full
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LTC2338-18
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 1.05 1.2 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 1Msps Sample Rate (IN+ = IN– = 0V) l 10 11.2 mA IOVDD Supply Current 1Msps Sample Rate (CL = 20pF) 0.4 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 1Msps Sample Rate (IN+ = IN– = 0V) l 50 56 mW Nap Mode Conversion Done (IVDD + IOVDD) l 19.5 23 mW Sleep Mode Sleep Mode (IVDD + IOVDD) l 0.3 1.1 mW 233818fa 4 For more information www.linear.com/LTC2338-18 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration 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
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 1.05 1.2 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 1Msps Sample Rate (IN+ = IN– = 0V) l 10 11.2 mA IOVDD Supply Current 1Msps Sample Rate (CL = 20pF) 0.4 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 1Msps Sample Rate (IN+ = IN– = 0V) l 50 56 mW Nap Mode Conversion Done (IVDD + IOVDD) l 19.5 23 mW Sleep Mode Sleep Mode (IVDD + IOVDD) l 0.3 1.1 mW 233818fa 4 For more information www.linear.com/LTC2338-18 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration 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
