Datasheet LTC2486 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 16-Bit 2-/4-Channel ∆Σ ADC with PGA and Easy Drive Input Current Cancellation |
| 页数 / 页 | 36 / 3 — ELECTRICAL. CHARACTERISTICS (2X SPEED) The. denotes the specifications … |
| 文件格式/大小 | PDF / 502 Kb |
| 文件语言 | 英语 |
ELECTRICAL. CHARACTERISTICS (2X SPEED) The. denotes the specifications which apply over the
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LTC2486
ELECTRICAL CHARACTERISTICS (2X SPEED) The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) 0.1V ≤ VREF ≤ VCC, –FS ≤ VIN ≤ +FS (Note 5) 16 Bits Integral Nonlinearity 5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V (Note 6) l 2 20 ppm of VREF 2.7V ≤ VCC ≤5.5V, VREF = 2.5V, VIN(CM) = 1.25V (Note 6) l 1 ppm of VREF Offset Error 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 14) l 0.2 2 mV Offset Error Drift 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC 100 nV/°C Positive Full-Scale Error 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN– = 0.25VREF l 32 ppm of VREF Positive Full-Scale Error Drift 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN– = 0.25VREF 0.1 ppm of VREF/°C Negative Full-Scale Error 2.5V ≤ VREF ≤ VCC, IN+ = 0.25VREF, IN– = 0.75VREF l 32 ppm of VREF Negative Full-Scale Error Drift 2.5V ≤ VREF ≤ VCC, IN+ = 0.25VREF, IN– = 0.75VREF 0.1 ppm of VREF/°C Output Noise 2.7V ≤ VCC ≤ 5.5V, 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC 0.85 µVRMS Programmable Gain l 1 128
CONVERTER CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Common Mode Rejection DC 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 5) l 140 dB Input Common Mode Rejection 50Hz ±2% 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 5) l 140 dB Input Common Mode Rejection 60Hz ±2% 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 5) l 140 dB Input Normal Mode Rejection 50Hz ±2% 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Notes 5, 7) l 110 120 dB Input Normal Mode Rejection 60Hz ±2% 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Notes 5, 8) l 110 120 dB Input Normal Mode Rejection 50Hz/60Hz ±2% 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Notes 5, 9) l 87 dB Reference Common Mode Rejection DC 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 5) l 120 140 dB Power Supply Rejection DC VREF = 2.5V, IN+ = IN– = GND 120 dB Power Supply Rejection, 50Hz ±2% VREF = 2.5V, IN+ = IN– = GND (Notes 7, 9) 120 dB Power Supply Rejection, 60Hz ±2% VREF = 2.5V, IN+ = IN– = GND (Notes 8, 9) 120 dB 2486fe For more information www.linear.com/LTC2486 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics (Normal Speed) Electrical Characteristics (2x Speed) Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts
ELECTRICAL CHARACTERISTICS (2X SPEED) The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) 0.1V ≤ VREF ≤ VCC, –FS ≤ VIN ≤ +FS (Note 5) 16 Bits Integral Nonlinearity 5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V (Note 6) l 2 20 ppm of VREF 2.7V ≤ VCC ≤5.5V, VREF = 2.5V, VIN(CM) = 1.25V (Note 6) l 1 ppm of VREF Offset Error 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 14) l 0.2 2 mV Offset Error Drift 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC 100 nV/°C Positive Full-Scale Error 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN– = 0.25VREF l 32 ppm of VREF Positive Full-Scale Error Drift 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN– = 0.25VREF 0.1 ppm of VREF/°C Negative Full-Scale Error 2.5V ≤ VREF ≤ VCC, IN+ = 0.25VREF, IN– = 0.75VREF l 32 ppm of VREF Negative Full-Scale Error Drift 2.5V ≤ VREF ≤ VCC, IN+ = 0.25VREF, IN– = 0.75VREF 0.1 ppm of VREF/°C Output Noise 2.7V ≤ VCC ≤ 5.5V, 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC 0.85 µVRMS Programmable Gain l 1 128
CONVERTER CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Common Mode Rejection DC 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 5) l 140 dB Input Common Mode Rejection 50Hz ±2% 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 5) l 140 dB Input Common Mode Rejection 60Hz ±2% 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 5) l 140 dB Input Normal Mode Rejection 50Hz ±2% 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Notes 5, 7) l 110 120 dB Input Normal Mode Rejection 60Hz ±2% 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Notes 5, 8) l 110 120 dB Input Normal Mode Rejection 50Hz/60Hz ±2% 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Notes 5, 9) l 87 dB Reference Common Mode Rejection DC 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 5) l 120 140 dB Power Supply Rejection DC VREF = 2.5V, IN+ = IN– = GND 120 dB Power Supply Rejection, 50Hz ±2% VREF = 2.5V, IN+ = IN– = GND (Notes 7, 9) 120 dB Power Supply Rejection, 60Hz ±2% VREF = 2.5V, IN+ = IN– = GND (Notes 8, 9) 120 dB 2486fe For more information www.linear.com/LTC2486 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics (Normal Speed) Electrical Characteristics (2x Speed) Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts