Datasheet LTC2412 (Analog Devices) - 9
| 制造商 | Analog Devices |
| 描述 | 2-Channel Differential Input 24-Bit No Latency ∆Σ ADC |
| 页数 / 页 | 38 / 9 — TYPICAL PERFORMANCE CHARACTERISTICS. –Full-Scale Error vs VCC. … |
| 文件格式/大小 | PDF / 567 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. –Full-Scale Error vs VCC. –Full-Scale Error vs VREF. PSRR vs Frequency at VCC
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LTC2412
TYPICAL PERFORMANCE CHARACTERISTICS –Full-Scale Error vs VCC –Full-Scale Error vs VREF PSRR vs Frequency at VCC
3 3 0 REF+ = 2.5V VCC = 5V VCC = 4.1VDC 1.4V ) REF– = GND ) REF+ = VREF REF+ = 2.5V REF 2 V –20 REF = 2.5V REF 2 REF– = GND REF– = GND IN+ = GND IN+ = GND IN+ = GND IN– = 1.25V IN– = 0.5 • REF+ –40 IN– = GND 1 FO = GND 1 FO = GND FO = GND TA = 25°C TA = 25°C –60 TA = 25°C 0 0 –80 –1 –1 REJECTION (dB) –100 –2 –2 –FULL-SCALE ERROR (ppm OF V –FULL-SCALE ERROR (ppm OF V –120 –3 –3 –140 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0.01 0.1 1 10 100 VCC (V) VREF (V) FREQUENCY AT VCC (Hz) 2412 G31 2412 G32 2412 G33
PSRR vs Frequency at VCC PSRR vs Frequency at VCC PSRR vs Frequency at VCC
0 0 0 VCC = 4.1VDC VCC = 4.1VDC ±1.4V VCC = 4.1VDC ±0.7VP-P REF+ = 2.5V REF+ = 2.5V –20 REF+ = 2.5V REF– = GND –20 REF– = GND –20 REF– = GND IN+ = GND IN+ = GND IN+ = GND –40 IN– = GND –40 IN– = GND –40 IN– = GND FO = GND FO = GND FO = GND –60 TA = 25°C –60 TA = 25°C –60 TA = 25°C –80 –80 –80 REJECTION (dB) REJECTION (dB) REJECTION (dB) –100 –100 –100 –120 –120 –120 –140 –140 –140 1 10 100 1k 10k 100k 1M 0 30 60 90 120 150 180 210 240 15250 15300 15350 15400 15450 FREQUENCY AT VCC (Hz) FREQUENCY AT VCC (Hz) FREQUENCY AT VCC (Hz) 2412 G34 2412 G35 2412 G36
Conversion Current Conversion Current Sleep Mode Current vs Temperature vs Output Data Rate vs Temperature
240 1000 6 VREF = VCC FO = GND 230 VCC = 5.5V 900 IN+ = GND CS = VCC IN– = GND 5 SCK = NC 220 800 SCK = NC SDO = NC V VCC = 5.5V CC = 5V SDO = NC 700 4 210 CS = GND FO = GND FO = EXT OSC CS = GND 600 200 TA = 25°C SCK = NC 3 V 500 CC = 5V SDO = NC 190 400 VCC = 5V 2 VCC = 3V SUPPLY CURRENT (µA) CONVERSION CURRENT (µA) 180 VCC = 3V 300 SLEEP MODE CURRENT (µA) VCC = 2.7V 1 170 200 VCC = 2.7V VCC = 3V 160 100 0 –45 –30 –15 0 15 30 45 60 75 90 0 5 10 15 20 25 –45 –30 –15 0 15 30 45 60 75 90 TEMPERATURE (°C) OUTPUT DATA RATE (READINGS/SEC) TEMPERATURE (°C) 2412 G37 2412 G38 2412 G39 2412fa For more information www.linear.com/LTC2412 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuit Applications Information Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS –Full-Scale Error vs VCC –Full-Scale Error vs VREF PSRR vs Frequency at VCC
3 3 0 REF+ = 2.5V VCC = 5V VCC = 4.1VDC 1.4V ) REF– = GND ) REF+ = VREF REF+ = 2.5V REF 2 V –20 REF = 2.5V REF 2 REF– = GND REF– = GND IN+ = GND IN+ = GND IN+ = GND IN– = 1.25V IN– = 0.5 • REF+ –40 IN– = GND 1 FO = GND 1 FO = GND FO = GND TA = 25°C TA = 25°C –60 TA = 25°C 0 0 –80 –1 –1 REJECTION (dB) –100 –2 –2 –FULL-SCALE ERROR (ppm OF V –FULL-SCALE ERROR (ppm OF V –120 –3 –3 –140 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0.01 0.1 1 10 100 VCC (V) VREF (V) FREQUENCY AT VCC (Hz) 2412 G31 2412 G32 2412 G33
PSRR vs Frequency at VCC PSRR vs Frequency at VCC PSRR vs Frequency at VCC
0 0 0 VCC = 4.1VDC VCC = 4.1VDC ±1.4V VCC = 4.1VDC ±0.7VP-P REF+ = 2.5V REF+ = 2.5V –20 REF+ = 2.5V REF– = GND –20 REF– = GND –20 REF– = GND IN+ = GND IN+ = GND IN+ = GND –40 IN– = GND –40 IN– = GND –40 IN– = GND FO = GND FO = GND FO = GND –60 TA = 25°C –60 TA = 25°C –60 TA = 25°C –80 –80 –80 REJECTION (dB) REJECTION (dB) REJECTION (dB) –100 –100 –100 –120 –120 –120 –140 –140 –140 1 10 100 1k 10k 100k 1M 0 30 60 90 120 150 180 210 240 15250 15300 15350 15400 15450 FREQUENCY AT VCC (Hz) FREQUENCY AT VCC (Hz) FREQUENCY AT VCC (Hz) 2412 G34 2412 G35 2412 G36
Conversion Current Conversion Current Sleep Mode Current vs Temperature vs Output Data Rate vs Temperature
240 1000 6 VREF = VCC FO = GND 230 VCC = 5.5V 900 IN+ = GND CS = VCC IN– = GND 5 SCK = NC 220 800 SCK = NC SDO = NC V VCC = 5.5V CC = 5V SDO = NC 700 4 210 CS = GND FO = GND FO = EXT OSC CS = GND 600 200 TA = 25°C SCK = NC 3 V 500 CC = 5V SDO = NC 190 400 VCC = 5V 2 VCC = 3V SUPPLY CURRENT (µA) CONVERSION CURRENT (µA) 180 VCC = 3V 300 SLEEP MODE CURRENT (µA) VCC = 2.7V 1 170 200 VCC = 2.7V VCC = 3V 160 100 0 –45 –30 –15 0 15 30 45 60 75 90 0 5 10 15 20 25 –45 –30 –15 0 15 30 45 60 75 90 TEMPERATURE (°C) OUTPUT DATA RATE (READINGS/SEC) TEMPERATURE (°C) 2412 G37 2412 G38 2412 G39 2412fa For more information www.linear.com/LTC2412 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuit Applications Information Package Description Revision History Typical Application Related Parts