Datasheet LTC2480 (Analog Devices) - 9

LTC2480
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 VREF = 2.5V V –20 IN+ = GND 308 308 IN(CM) = GND fO = GND IN– = GND –40 fO = GND TA = 25°C 306 306 –60 –80 304 304 FREQUENCY (kHz) REJECTION (dB) V FREQUENCY (kHz) CC = 4.1V –100 V 302 REF = 2.5V V 302 IN = 0V 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) 2480 G26 2480 G27 2480 G28
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 V –20 REF = 2.5V REF = 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) 2480 G29 2480 G30 2480 G31
Sleep Mode Current Conversion Current Integral Nonlinearity (2x Speed vs Temperature vs Output Data Rate Mode; VCC = 5V, VREF = 5V)
2.0 500 f 3 O = 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 V 350 REF 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 V –1 CC = 2.7V CC = 5V INL (ppm OF V 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) 2480 G32 2480 G33 2480 G34 2480fe For more information www.linear.com/LTC2480 9 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 Analog 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