Datasheet LTC2486 (Analog Devices) - 8
| 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 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. On-Chip Oscillator Frequency. vs … |
| 文件格式/大小 | PDF / 502 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. On-Chip Oscillator Frequency. vs Temperature. vs VCC. PSRR vs Frequency at VCC
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LTC2486
TYPICAL PERFORMANCE CHARACTERISTICS On-Chip Oscillator Frequency On-Chip Oscillator Frequency vs Temperature vs VCC PSRR vs Frequency at VCC
310 310 0 VREF = 2.5V VCC = 4.1V DC VIN = 0V V –20 REF = 2.5V 308 V IN+ = GND 308 IN(CM) = GND fO = GND IN– = GND TA = 25°C –40 fO = GND TA = 25°C 306 306 –60 304 –80 304 FREQUENCY (kHz) REJECTION (dB) V FREQUENCY (kHz) CC = 4.1V –100 V 302 REF = 2.5V VIN = 0V 302 V –120 IN(CM) = GND fO = GND 300 300 –140 –45 –30 –15 0 15 30 45 60 75 90 2.5 3.0 3.5 4.0 4.5 5.0 5.5 1 10 100 1k 10k 100k 1M TEMPERATURE (°C) VCC (V) FREQUENCY AT VCC (Hz) 2486 G19 2486 G20 2486 G21
Conversion Current PSRR vs Frequency at VCC PSRR vs Frequency at VCC vs Temperature
0 0 200 VCC = 4.1V DC ±1.4V VCC = 4.1V DC ±0.7V fO = GND V –20 REF = 2.5V VREF = 2.5V CS = GND IN+ = GND –20 IN+ = GND SCK = NC IN– = GND IN– = GND 180 SDO = NC –40 fO = GND –40 fO = GND SDI = GND VCC = 5V TA = 25°C TA = 25°C –60 –60 160 –80 –80 VCC = 2.7V 140 REJECTION (dB) REJECTION (dB) –100 –100 CONVERSION CURRENT (µA) 120 –120 –120 –140 –140 100 0 20 40 60 80 100 120 140 160 180 200 220 30600 30650 30700 30750 30800 –45 –30 –15 0 15 30 45 60 75 90 FREQUENCY AT VCC (Hz) FREQUENCY AT VCC (Hz) TEMPERATURE (°C) 2486 G22 2486 G23 2486 G24
Sleep Mode Current Conversion Current vs Temperature vs Output Data Rate
2.0 500 fO = GND VREF = VCC 1.8 CS = VCC 450 IN+ = GND IN– = GND 1.6 SCK = NC SDO = NC 400 SCK = NC 1.4 SDI = GND SDO = NC SDI = GND 1.2 350 VCC = 5V CS GND 1.0 300 fO = EXT OSC TA = 25°C 0.8 250 0.6 VCC = 2.7V V SUPPLY CURRENT (µA) CC = 5V 200 SLEEP MODE CURRENT (µA) 0.4 0.2 150 VCC = 3V 0 100 –45 –30 –15 0 15 30 45 60 75 90 0 10 20 30 TEMPERATURE (°C) OUTPUT DATA RATE (READINGS/SEC) 2486 G25 2486 G26 2486fe 8 For more information www.linear.com/LTC2486 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
TYPICAL PERFORMANCE CHARACTERISTICS On-Chip Oscillator Frequency On-Chip Oscillator Frequency vs Temperature vs VCC PSRR vs Frequency at VCC
310 310 0 VREF = 2.5V VCC = 4.1V DC VIN = 0V V –20 REF = 2.5V 308 V IN+ = GND 308 IN(CM) = GND fO = GND IN– = GND TA = 25°C –40 fO = GND TA = 25°C 306 306 –60 304 –80 304 FREQUENCY (kHz) REJECTION (dB) V FREQUENCY (kHz) CC = 4.1V –100 V 302 REF = 2.5V VIN = 0V 302 V –120 IN(CM) = GND fO = GND 300 300 –140 –45 –30 –15 0 15 30 45 60 75 90 2.5 3.0 3.5 4.0 4.5 5.0 5.5 1 10 100 1k 10k 100k 1M TEMPERATURE (°C) VCC (V) FREQUENCY AT VCC (Hz) 2486 G19 2486 G20 2486 G21
Conversion Current PSRR vs Frequency at VCC PSRR vs Frequency at VCC vs Temperature
0 0 200 VCC = 4.1V DC ±1.4V VCC = 4.1V DC ±0.7V fO = GND V –20 REF = 2.5V VREF = 2.5V CS = GND IN+ = GND –20 IN+ = GND SCK = NC IN– = GND IN– = GND 180 SDO = NC –40 fO = GND –40 fO = GND SDI = GND VCC = 5V TA = 25°C TA = 25°C –60 –60 160 –80 –80 VCC = 2.7V 140 REJECTION (dB) REJECTION (dB) –100 –100 CONVERSION CURRENT (µA) 120 –120 –120 –140 –140 100 0 20 40 60 80 100 120 140 160 180 200 220 30600 30650 30700 30750 30800 –45 –30 –15 0 15 30 45 60 75 90 FREQUENCY AT VCC (Hz) FREQUENCY AT VCC (Hz) TEMPERATURE (°C) 2486 G22 2486 G23 2486 G24
Sleep Mode Current Conversion Current vs Temperature vs Output Data Rate
2.0 500 fO = GND VREF = VCC 1.8 CS = VCC 450 IN+ = GND IN– = GND 1.6 SCK = NC SDO = NC 400 SCK = NC 1.4 SDI = GND SDO = NC SDI = GND 1.2 350 VCC = 5V CS GND 1.0 300 fO = EXT OSC TA = 25°C 0.8 250 0.6 VCC = 2.7V V SUPPLY CURRENT (µA) CC = 5V 200 SLEEP MODE CURRENT (µA) 0.4 0.2 150 VCC = 3V 0 100 –45 –30 –15 0 15 30 45 60 75 90 0 10 20 30 TEMPERATURE (°C) OUTPUT DATA RATE (READINGS/SEC) 2486 G25 2486 G26 2486fe 8 For more information www.linear.com/LTC2486 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