Datasheet LTC1857, LTC1858, LTC1859 (Analog Devices) - 6

LTC1857/LTC1858/LTC1859
TYPICAL PERFORMANCE CHARACTERISTICS LTC1859 Nonaveraged LTC1859 Typical INL Curve LTC1859 Typical DNL Curve 4096-Point FFT Plot
2.0 2.0 0 f –10 SAMPLE = 100kHz 1.5 1.5 fIN = 1kHz –20 SINAD = 86.95dB 1.0 1.0 –30 THD = –101.42dB –40 0.5 0.5 –50 –60 0 0 INL (LSB) –70 DNL (LSB) –0.5 –0.5 –80 MAGNITUDE (dB) –90 –1.0 –1.0 –100 –1.5 –1.5 –110 –120 –2.0 –2.0 –130 –32768 –16384 0 16384 32767 –32768 –16384 0 16384 32767 0 5 10 15 20 25 30 35 40 45 50 CODE CODE FREQUENCY (kHz) 1859 G01 1859 G02 1869 G03
LTC1859 Channel-to-Channel LTC1859 SINAD LTC1859 Total Harmonic Offset Error Matching vs vs Input Frequency Distortion vs Input Frequency Temperature
90 –70 1.0 88 86 –80 0.5 84 BIPOLAR MODE 82 –90 0 UNIPOLAR MODE SINAD (dB) 80 78 –100 CHANNEL-TO-CHANNEL –0.5 76 TOTAL HARMONIC DISTORTION (dB) OFFSET ERROR MATCHING (LSBs) 74 –110 –1.0 1 10 100 1 10 100 –50 –25 0 25 50 75 100 INPUT FREQUENCY (kHz) INPUT FREQUENCY (kHz) TEMPERATURE (°C) 1859 G04 1859 G05 1959 G06
LTC1859 Channel-to-Channel Gain Internal Reference Voltage Change in REFCOMP Voltage Error Matching vs Temperature vs Temperature vs Load Current
1.0 2.520 0.04 2.515 0.5 2.510 0.02 UNIPOLAR MODE 2.505 0 BIPOLAR MODE 2.500 0 2.495 CHANNEL-TO-CHANNEL –0.5 2.490 –0.02 GAIN ERROR MATCHING (LSBs) INTERNAL REFERENCE VOLTAGE (V) 2.485 CHANGE IN REFCOMP VOLTAGE (V) –1.0 2.480 –0.04 –50 –25 0 25 50 75 100 –50 –25 0 25 50 75 100 –50 –40 –30 –20 –10 0 10 TEMPERATURE (°C) TEMPERATURE (°C) LOAD CURRENT (mA) 1959 G07 1859 G08 1859 G09 185789fb 6 For more information www.linear.com/LTC1857 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Converter and Multplexer Characteristics Analog Input Dynamic Accuracy Internal Reference Characteristics Digital Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Timing Diagrams Operation Applications Information Package Description Revision History Typical Application Related Parts