Datasheet LTC1864, LTC1865 (Analog Devices) - 9

ManufacturerAnalog Devices
DescriptionµPower, 16-Bit, 250ksps 1- and 2-Channel ADCs in MSOP
Pages / Page24 / 9 — TYPICAL PERFORMANCE CHARACTERISTICS. Change in Offset Error vs. Change in …
File Format / SizePDF / 387 Kb
Document LanguageEnglish

TYPICAL PERFORMANCE CHARACTERISTICS. Change in Offset Error vs. Change in Gain Error vs. Reference Voltage

TYPICAL PERFORMANCE CHARACTERISTICS Change in Offset Error vs Change in Gain Error vs Reference Voltage

Model Line for this Datasheet

Text Version of Document

LTC1864/LTC1865
TYPICAL PERFORMANCE CHARACTERISTICS Change in Offset Error vs Change in Gain Error vs Reference Voltage Change in Offset vs Temperature Reference Voltage
75 5 20 VCC = 5V VCC = 5V VCC = 5V TA = 25°C 4 VREF = 5V 15 TA = 25°C 3 50 10 2 5 1 25 0 0 –1 –5 –2 0 CHANGE IN OFFSET (LSB) –10 –3 CHANGE IN GAIN ERROR (LSB) CHANGE IN OFFSET ERROR (LSB) –15 –4 –25 –5 –20 0 1 2 3 4 5 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 REFERENCE VOLTAGE (V) TEMPERATURE (°C) REFERENCE VOLTAGE(V) 18645 G10 18645 G11 18645 G12
Change in Gain Error vs Histogram of 4096 Conversions of Temperature a DC Input Voltage 4096 Point FFT Nonaveraged
5 1800 0 VCC = 5V VCC = 5V fS = 203.125kHz 4 VREF = 5V 1600 1534 TA = 25°C fIN = 99.72763kHz V –20 3 REF = 5V VCC = 5V 1400 VREF = 5V 2 1178 –40 T 1200 A = 25°C 1 1000 –60 0 800 729 –1 –80 FREQUENCY 600 AMPLITUDE (dB) –2 516 –100 400 CHANGE IN GAIN ERROR (LSB) –3 –120 –4 200 127 0 0 12 0 0 –5 0 –140 –50 –25 0 25 50 75 100 125 –4 –3 –2 –1 0 1 2 3 4 5 0 20 40 60 80 100 120 TEMPERATURE (°C) CODE FREQUENCY (kHz) 18645 G13 18645 G14 18645 G15
SINAD vs Frequency THD vs Frequency SFDR vs Frequency
100 0 100 90 –10 SNR 90 80 –20 80 70 SINAD –30 70 60 –40 60 50 –50 50 THD (dB) SINAD (dB) 40 –60 SFDR (dB) 40 30 –70 30 V VCC = 5V VCC = 5V 20 CC = 5V –80 V V 20 REF = 5V REF = 5V VREF = 5V T 10 TA = 25°C –90 A = 25°C 10 TA = 25°C V V IN = 0dB IN = 0dB VIN = 0dB 0 –100 0 1 10 100 1000 1 10 100 1000 1 10 100 1000 FIN (kHz) FIN (kHz) FIN (kHz) 18645 G16 18645 G17 18645 G18 18645fb 9