Datasheet LTC2312-12 (Analog Devices) - 7

LTC2312-12
Typical perForMance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, fSMPL = 500ksps, unless otherwise noted. THD, Harmonics vs Temperature, SNR, SINAD vs Reference Voltage Reference Current fIN = 259kHz fIN = 259kHz vs Reference Voltage
–75 74 200 VDD = 5V SNR V –80 DD = 5V THD 73 175 SNR SINAD –85 VDD = 5V VDD = 3.6V 3RD 72 OPERATION 150 SINAD NOT ALLOWED –90 2ND SNR, SINAD (dBFS) VDD = 3.6V THD, HARMONICS (dB) 71 OPERATION 125 –95 NOT ALLOWED REFERENCE CURRENT (µA) –100 70 100 –55 –35 –15 5 25 45 65 85 105 125 2 2.5 3 3.5 4 4.5 2 2.5 3 3.5 4 4.5 TEMPERATURE (°C) REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) 231212 G11 231212 G12 231212 G10
Full-Scale Error vs Temperature Offset Error vs Temperature Supply Current vs Temperature
4 1 3.5 3 3.4 3.3 2 0.5 3.2 1 3.1 VDD = 5V 0 0 3.0 –1 2.9 VDD = 3V OFFSET ERROR (LSB) 2.8 –2 –0.5 FULL-SCALE ERROR (LSB) SUPPLY CURRENT (mA) 2.7 –3 2.6 –4 –1 2.5 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 231212 G13 231212 G14 231212 G15
Shutdown Current vs Temperature Supply Current vs Sample Rate
1 3.5 IVDD + IOVDD VDD = 5V ITOT OV 3.0 DD = 2.5V IVDD 0.75 2.5 2.0 0.5 1.5 SHUTDOWN CURRENT (µA) 0.25 VDD = 3V SUPPLY CURRENT (mA) 1.0 0.5 VDD = 5V IOVDD 0 0 –55 –35 –15 5 25 45 65 85 105 125 0 100 200 300 400 500 TEMPERATURE (°C) SAMPLE RATE (kHz) 231212 G16 231212 G17 231212fa For more information www.linear.com/LTC2312-12 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input/Output Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts