Datasheet LTC2378-18 (Analog Devices) - 7

LTC2378-18
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/DNL vs Temperature
105.0 –115 1.0 104.5 104.0 –120 0.5 103.5 SNR THD MAX INL 103.0 SINAD –125 MAX DNL 3RD 102.5 0 MIN DNL 102.0 –130 MIN INL SNR, SINAD (dBFS) 101.5 2ND HARMONICS, THD (dBFS) INL/DNL ERROR (LSB)–0.5 101.0 –135 100.5 100.0 –140 –1.0 –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) 237818 G10 237818 G11 237818 G12
Full-Scale Error vs Temperature Offset Error vs Temperature Supply Current vs Temperature
8 2.0 6 I 6 VDD –FS 1.5 5 4 1.0 4 2 0.5 0 0 Y CURRENT (mA) 3 –2 –0.5 2 OFFSET ERROR (LSB) FULL-SCALE ERROR (LSB) –4 –1.0 POWER SUPPL 1 I –6 +FS REF –1.5 IOVDD –8 –2.0 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) 237818 G13 237818 G14 237818 G15
Reference Current Shutdown Current vs Temperature CMRR vs Input Frequency vs Reference Voltage
45 100 0.7 IVDD + IOVDD + IREF 40 95 0.6 35 0.5 30 90 0.4 25 85 20 CMRR (dB) 0.3 15 80 0.2 10 REFERENCE CURRENT (mA) POWER-DOWN CURRENT (µA) 75 0.1 5 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) 237818 G16 237818 G17 237818 G18 237818fa For more information www.linear.com/LTC2378-18 7 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information 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