Datasheet LTC2312-12 (Analog Devices) - 6

LTC2312-12
Typical perForMance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, fSMPL = 500ksps, unless otherwise noted. Integral Nonlinearity Differential Nonlinearity DC Histogram Near Mid-Scale vs Output Code vs Output Code (Code 2048)
1.00 1.00 16000 σ = 0.33 0.75 0.75 0.50 0.50 12000 0.25 0.25 0.0 0.00 8000 INL (LSB) COUNTS –0.25 DNL (LSB) –0.25 –0.50 –0.50 4000 –0.75 –0.75 –1.00 –1.00 0 0 512 1024 1536 2048 2560 3072 3584 4096 0 512 1024 1536 2048 2560 3072 3584 4096 2046 2047 2048 2049 OUTPUT CODE OUTPUT CODE CODE 231212 G01 231212 G02 231212 G03
16k Point FFT, fS = 500ksps SNR, SINAD vs Input Frequency THD, Harmonics vs Input fIN = 259kHz (50kHz to 1MHz) Frequency (50kHz to 1MHz)
0 74 –75 VDD = 5V RIN/CIN = 50Ω/47pF –20 SNR = 73dBFS VDD = 5V SNR fS = 500ksps SINAD = 72.7dBFS 73 –80 VDD = 5V –40 THD = –84dB SINAD THD SFDR = 88dB 72 –60 –85 2ND 3RD –80 71 VDD = 3V SNR –90 –100 SINAD AMPLITUDE (dBFS) SNR, SINAD (dBFS) 70 –120 THD, HARMONICS (dB) –95 69 –140 –160 68 –100 0 50 100 150 200 250 0 250 500 750 1000 0 250 500 750 1000 INPUT FREQUENCY (kHz) INPUT FREQUENCY (kHz) INPUT FREQUENCY (kHz) 231212 G05 231212 G04 231212 G06
THD, Harmonics vs Input SNR, SINAD vs Temperature, THD, Harmonics vs Temperature, Frequency (50kHz to 1MHz) fIN = 259kHz fIN = 259kHz
–75 74 –75 V R DD = 3V IN/CIN = 50Ω/47pF fS = 500ksps VDD = 5V –80 VDD = 3V 73 SNR –80 THD THD SINAD –85 72 –85 3RD 2ND 3RD VDD = 3V –90 71 –90 SNR 2ND SNR, SINAD (dBFS) THD, HARMONICS (dB) THD, HARMONICS (dB) –95 SINAD –95 70 –100 –100 69 0 250 500 750 1000 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 INPUT FREQUENCY (kHz) TEMPERATURE (°C) TEMPERATURE (°C) 231212 G08 231212 G09 231212 G07 231212fa 6 For more information www.linear.com/LTC2312-12 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