Datasheet LTC2484 (Analog Devices) - 8
| Manufacturer | Analog Devices |
| Description | 24-Bit ΔΣ ADC with Easy Drive Input Current Cancellation |
| Pages / Page | 42 / 8 — Typical perForMance characTerisTics. On-Chip Oscillator Frequency. vs … |
| File Format / Size | PDF / 768 Kb |
| Document Language | English |
Typical perForMance characTerisTics. On-Chip Oscillator Frequency. vs Temperature. vs VCC. PSRR vs Frequency at VCC
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LTC2484
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 –40 fO = GND T 306 A = 25°C 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) 2484 G21 2484 G22 2484 G23
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) 2484 G24 2484 G25 2484 G26
Sleep Mode Current Conversion Current Integral Nonlinearity (2x Speed vs Temperature vs Output Data Rate Mode; VCC = 5V, VREF = 5V)
2.0 500 3 fO = GND V V 1.8 REF = VCC CC = 5V CS = VCC 450 IN+ = GND VREF = 5V 1.6 SCK = NC IN– = GND 2 VIN(CM) = 2.5V SDO = NC 400 SCK = NC fO = GND 1.4 SDI = GND SDO = NC ) SDI = GND 1 1.2 REF V 350 CC = 5V CS GND 25°C, 90°C 1.0 300 fO = EXT OSC T 0 A = 25°C 0.8 250 0.6 V VCC = 5V INL (ppm OF V –1 CC = 2.7V SUPPLY CURRENT (µA) 200 SLEEP MODE CURRENT (µA) 0.4 –45°C –2 0.2 150 VCC = 3V 0 100 –3 –45 –30 –15 0 15 30 45 60 75 90 0 10 20 30 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 TEMPERATURE (°C) OUTPUT DATA RATE (READINGS/SEC) INPUT VOLTAGE (V) 2484 G27 2484 G28 2484 G29 2484ff 8 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
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 –40 fO = GND T 306 A = 25°C 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) 2484 G21 2484 G22 2484 G23
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) 2484 G24 2484 G25 2484 G26
Sleep Mode Current Conversion Current Integral Nonlinearity (2x Speed vs Temperature vs Output Data Rate Mode; VCC = 5V, VREF = 5V)
2.0 500 3 fO = GND V V 1.8 REF = VCC CC = 5V CS = VCC 450 IN+ = GND VREF = 5V 1.6 SCK = NC IN– = GND 2 VIN(CM) = 2.5V SDO = NC 400 SCK = NC fO = GND 1.4 SDI = GND SDO = NC ) SDI = GND 1 1.2 REF V 350 CC = 5V CS GND 25°C, 90°C 1.0 300 fO = EXT OSC T 0 A = 25°C 0.8 250 0.6 V VCC = 5V INL (ppm OF V –1 CC = 2.7V SUPPLY CURRENT (µA) 200 SLEEP MODE CURRENT (µA) 0.4 –45°C –2 0.2 150 VCC = 3V 0 100 –3 –45 –30 –15 0 15 30 45 60 75 90 0 10 20 30 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 TEMPERATURE (°C) OUTPUT DATA RATE (READINGS/SEC) INPUT VOLTAGE (V) 2484 G27 2484 G28 2484 G29 2484ff 8 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
