Datasheet LTC2378-20 (Analog Devices) - 7

LTC2378-20
Typical perForMance characTerisTics TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V, REF = 5V, fSMPL = 1Msps, unless otherwise noted. SNR, SINAD vs Temperature, THD, Harmonics vs Temperature, fIN = 2kHz fIN = 2kHz INL vs Temperature
106 –120 2.0 1.5 105 SNR –125 1.0 MAX INL 104 SINAD 0.5 THD 103 –130 0 3RD MIN INL –0.5 SNR, SINAD (dBFS) 102 INL ERROR (ppm) HARMONICS, THD (dBFS) –135 2ND –1.0 101 –1.5 100 –140 –2.0 –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) 237820 G10 237820 G11 237820 G12
Full-Scale Error vs Temperature Offset Error vs Temperature Supply Current vs Temperature
20 4 10 15 9 3 IVDD 8 10 2 7 5 –FS 1 6 0 0 Y CURRENT (mA) 5 –5 +FS 4 –1 3 OFFSET ERROR (ppm) FULL-SCALE ERROR (ppm) –10 –2 POWER SUPPL 2 –15 I –3 1 REF IOVDD –20 –4 0 –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) 237820 G13 237820 G14 237820 G15
Reference Current Shutdown Current vs Temperature CMRR vs Input Frequency vs Reference Voltage
45 100 1.0 IVDD + IOVDD + IREF 40 0.9 95 0.8 35 0.7 30 90 0.6 25 85 0.5 20 CMRR (dB) 0.4 15 80 0.3 10 REFERENCE CURRENT (mA) POWER-DOWN CURRENT (µA) 0.2 75 5 0.1 0 70 0 –50 –25 0 25 50 75 100 125 0 100 200 300 400 500 2.5 3.0 3.5 4.0 4.5 5.0 TEMPERATURE (°C) FREQUENCY (kHz) REFERENCE VOLTAGE (V) 237820 G16 237820 G17 237820 G18 237820fb For more information www.linear.com/LTC2378-20 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Revision History Typical Application Related Parts