Datasheet LTC2484 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 24-Bit ΔΣ ADC with Easy Drive Input Current Cancellation |
| 页数 / 页 | 42 / 4 — analog. inpuT anD reFerence The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 768 Kb |
| 文件语言 | 英语 |
analog. inpuT anD reFerence The. denotes the specifications which apply over the full operating
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LTC2484
analog inpuT anD reFerence The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
CS (IN+) IN+ Sampling Capacitance 11 pF CS (IN–) IN– Sampling Capacitance 11 pF CS (VREF) VREF Sampling Capacitance 11 pF IDC_LEAK (IN+) IN+ DC Leakage Current Sleep Mode, IN+ = GND l –10 1 10 nA IDC_LEAK (IN–) IN– DC Leakage Current Sleep Mode, IN– = GND l –10 1 10 nA IDC_LEAK (VREF) VREF DC Leakage Current Sleep Mode, VREF = VCC l –100 1 100 nA
Digi Tal 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 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage 2.7V ≤ VCC ≤ 5.5V (Note 16) l VCC – 0.5 V CS, fO, SDI VIL Low Level Input Voltage 2.7V ≤ VCC ≤ 5.5V l 0.5 V CS, fO, SDI VIH High Level Input Voltage 2.7V ≤ VCC ≤ 5.5V (Note 10) l VCC – 0.5 V SCK VIL Low Level Input Voltage 2.7V ≤ VCC ≤ 5.5V (Note 10) l 0.5 V SCK IIN Digital Input Current 0V ≤ VIN ≤ VCC l –10 10 µA CS, fO, SDI IIN Digital Input Current 0V ≤ VIN ≤ VCC (Note 10) l –10 10 µA SCK CIN Digital Input Capacitance 10 pF CS, fO, SDI CIN Digital Input Capacitance 10 pF SCK VOH High Level Output Voltage IO = –800µA l VCC – 0.5 V SDO VOL Low Level Output Voltage IO = 1.6mA l 0.4 V SDO VOH High Level Output Voltage IO = –800µA l VCC – 0.5 V SCK VOL Low Level Output Voltage IO = 1.6mA l 0.4 V SCK IOZ Hi-Z Output Leakage l –10 10 µA SDO
p ower requireMenTs The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC Supply Voltage l 2.7 5.5 V ICC Supply Current Conversion Mode (Note 12) l 160 250 µA Sleep Mode (Note 12) l 1 2 µA 2484ff 4 For more information www.linear.com/LTC2484 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics (Normal Speed) Pin Configuration Electrical Characteristics (2x Speed) Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts
analog inpuT anD reFerence The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
CS (IN+) IN+ Sampling Capacitance 11 pF CS (IN–) IN– Sampling Capacitance 11 pF CS (VREF) VREF Sampling Capacitance 11 pF IDC_LEAK (IN+) IN+ DC Leakage Current Sleep Mode, IN+ = GND l –10 1 10 nA IDC_LEAK (IN–) IN– DC Leakage Current Sleep Mode, IN– = GND l –10 1 10 nA IDC_LEAK (VREF) VREF DC Leakage Current Sleep Mode, VREF = VCC l –100 1 100 nA
Digi Tal 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 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage 2.7V ≤ VCC ≤ 5.5V (Note 16) l VCC – 0.5 V CS, fO, SDI VIL Low Level Input Voltage 2.7V ≤ VCC ≤ 5.5V l 0.5 V CS, fO, SDI VIH High Level Input Voltage 2.7V ≤ VCC ≤ 5.5V (Note 10) l VCC – 0.5 V SCK VIL Low Level Input Voltage 2.7V ≤ VCC ≤ 5.5V (Note 10) l 0.5 V SCK IIN Digital Input Current 0V ≤ VIN ≤ VCC l –10 10 µA CS, fO, SDI IIN Digital Input Current 0V ≤ VIN ≤ VCC (Note 10) l –10 10 µA SCK CIN Digital Input Capacitance 10 pF CS, fO, SDI CIN Digital Input Capacitance 10 pF SCK VOH High Level Output Voltage IO = –800µA l VCC – 0.5 V SDO VOL Low Level Output Voltage IO = 1.6mA l 0.4 V SDO VOH High Level Output Voltage IO = –800µA l VCC – 0.5 V SCK VOL Low Level Output Voltage IO = 1.6mA l 0.4 V SCK IOZ Hi-Z Output Leakage l –10 10 µA SDO
p ower requireMenTs The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC Supply Voltage l 2.7 5.5 V ICC Supply Current Conversion Mode (Note 12) l 160 250 µA Sleep Mode (Note 12) l 1 2 µA 2484ff 4 For more information www.linear.com/LTC2484 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics (Normal Speed) Pin Configuration Electrical Characteristics (2x Speed) Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts