Datasheet LTC2482 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | 16-Bit ΔΣ ADC with Easy Drive Input Current Cancellation |
| 页数 / 页 | 32 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. On-Chip Oscillator Frequency. Offset … |
| 文件格式/大小 | PDF / 325 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. On-Chip Oscillator Frequency. Offset Error vs VREF. vs Temperature. vs VCC
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LTC2482
TYPICAL PERFORMANCE CHARACTERISTICS On-Chip Oscillator Frequency On-Chip Oscillator Frequency Offset Error vs VREF vs Temperature vs VCC
0.3 310 310 VCC = 5V VREF = 2.5V REF– = GND VIN = 0V ) 0.2 VIN = 0V VIN(CM) = GND 308 308 REF VIN(CM) = GND fO = GND TA = 25°C 0.1 306 306 0 304 304 –0.1 FREQUENCY (kHz) FREQUENCY (kHz) VCC = 4.1V VREF = 2.5V OFFSET ERROR (ppm OF V 302 302 –0.2 VIN = 0V VIN(CM) = GND fO = GND –0.3 300 300 0 1 2 3 4 5 –45 –30 –15 0 15 30 45 60 75 90 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VREF (V) TEMPERATURE (°C) VCC (V) 2482 G10 2482 G12 2482 G11
PSRR vs Frequency at VCC PSRR vs Frequency at VCC PSRR vs Frequency at VCC
0 0 0 V V CC = 4.1V DC CC = 4.1V DC ±1.4V VCC = 4.1V DC ±0.7V V VREF = 2.5V VREF = 2.5V –20 REF = 2.5V –20 –20 IN+ = GND IN+ = GND IN+ = GND IN– = GND IN– = GND IN– = GND –40 f –40 f O = GND O = GND –40 fO = GND T T A = 25°C A = 25°C TA = 25°C –60 –60 –60 –80 –80 –80 REJECTION (dB) REJECTION (dB) REJECTION (dB) –100 –100 –100 –120 –120 –120 –140 –140 –140 0 10 100 1k 10k 100k 1M 0 20 40 60 80 100 120 140 160 180 200 220 30600 30650 30700 30750 30800 FREQUENCY AT V FREQUENCY AT V CC (Hz) CC (Hz) FREQUENCY AT VCC (Hz) 2482 G13 2482 G14 2482 G15
Conversion Current Sleep Mode Current Conversion Current vs Temperature vs Temperature vs Data Output Rate
200 2.0 500 fO = GND fO = GND VREF = VCC CS = GND 1.8 CS = VCC 450 IN+ = GND SCK = NC SCK = NC IN– = GND 180 1.6 SDO = NC SDO = NC 400 SCK = NC VCC = 5V 1.4 SDO = NC VCC = 5V CS 350 = GND 160 1.2 VCC = 5V fO = EXT OSC T 1.0 300 A = 25°C VCC = 2.7V VCC = 3V 140 0.8 250 0.6 VCC = 2.7V SUPPLY CURRENT (μA) 200 CONVERSION CURRENT (μA) 120 SLEEP MODE CURRENT (μA) 0.4 0.2 150 100 0 100 –45 –30 –15 0 15 30 45 60 75 90 –45 –30 –15 0 15 30 45 60 75 90 0 10 20 30 40 50 60 70 80 90 100 TEMPERATURE (°C) TEMPERATURE (°C) OUTPUT DATA RATE (READINGS/SEC) 2482 G16 2482 G17 2482 G18 2482fc 7
TYPICAL PERFORMANCE CHARACTERISTICS On-Chip Oscillator Frequency On-Chip Oscillator Frequency Offset Error vs VREF vs Temperature vs VCC
0.3 310 310 VCC = 5V VREF = 2.5V REF– = GND VIN = 0V ) 0.2 VIN = 0V VIN(CM) = GND 308 308 REF VIN(CM) = GND fO = GND TA = 25°C 0.1 306 306 0 304 304 –0.1 FREQUENCY (kHz) FREQUENCY (kHz) VCC = 4.1V VREF = 2.5V OFFSET ERROR (ppm OF V 302 302 –0.2 VIN = 0V VIN(CM) = GND fO = GND –0.3 300 300 0 1 2 3 4 5 –45 –30 –15 0 15 30 45 60 75 90 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VREF (V) TEMPERATURE (°C) VCC (V) 2482 G10 2482 G12 2482 G11
PSRR vs Frequency at VCC PSRR vs Frequency at VCC PSRR vs Frequency at VCC
0 0 0 V V CC = 4.1V DC CC = 4.1V DC ±1.4V VCC = 4.1V DC ±0.7V V VREF = 2.5V VREF = 2.5V –20 REF = 2.5V –20 –20 IN+ = GND IN+ = GND IN+ = GND IN– = GND IN– = GND IN– = GND –40 f –40 f O = GND O = GND –40 fO = GND T T A = 25°C A = 25°C TA = 25°C –60 –60 –60 –80 –80 –80 REJECTION (dB) REJECTION (dB) REJECTION (dB) –100 –100 –100 –120 –120 –120 –140 –140 –140 0 10 100 1k 10k 100k 1M 0 20 40 60 80 100 120 140 160 180 200 220 30600 30650 30700 30750 30800 FREQUENCY AT V FREQUENCY AT V CC (Hz) CC (Hz) FREQUENCY AT VCC (Hz) 2482 G13 2482 G14 2482 G15
Conversion Current Sleep Mode Current Conversion Current vs Temperature vs Temperature vs Data Output Rate
200 2.0 500 fO = GND fO = GND VREF = VCC CS = GND 1.8 CS = VCC 450 IN+ = GND SCK = NC SCK = NC IN– = GND 180 1.6 SDO = NC SDO = NC 400 SCK = NC VCC = 5V 1.4 SDO = NC VCC = 5V CS 350 = GND 160 1.2 VCC = 5V fO = EXT OSC T 1.0 300 A = 25°C VCC = 2.7V VCC = 3V 140 0.8 250 0.6 VCC = 2.7V SUPPLY CURRENT (μA) 200 CONVERSION CURRENT (μA) 120 SLEEP MODE CURRENT (μA) 0.4 0.2 150 100 0 100 –45 –30 –15 0 15 30 45 60 75 90 –45 –30 –15 0 15 30 45 60 75 90 0 10 20 30 40 50 60 70 80 90 100 TEMPERATURE (°C) TEMPERATURE (°C) OUTPUT DATA RATE (READINGS/SEC) 2482 G16 2482 G17 2482 G18 2482fc 7