Datasheet LTC2348-16 (Analog Devices) - 10

LTC2348-16
Typical perForMance characTerisTics TA = 25°C, VCC = +15V, VEE = –15V, VDD = 5V, OVDD = 2.5V, Internal Reference and Buffer (VREFBUF  = 4.096V), fSMPL = 200ksps, unless otherwise noted. 32k Point Arbitrary Two-Tone FFT 32k Point FFT fSMPL = 200kHz, 32k Point FFT fSMPL = 200kHz, f f SMPL = 200kHz, IN+ = –7dBFS 2kHz IN = 2kHz fIN = 2kHz Sine, IN– = –7dBFS 3.1kHz Sine
0 0 0 ±10.24V RANGE ±10.24V RANGE ±10.24V RANGE –20 TRUE BIPOLAR DRIVE (IN– = 0V) –20 FULLY DIFFERENTIAL DRIVE (IN– = –IN+) –20 ARBITRARY DRIVE –40 SNR = 94.4dB –40 SNR = 94.4dB –40 SFDR = 119dB THD = –109dB THD = –119dB SNR = 94.4dB –60 SINAD = 94.3dB –60 SINAD = 94.4dB –60 SFDR = 110dB SFDR = 121dB –80 –80 –80 –100 –100 –100 6.2kHz –120 AMPLITUDE (dBFS) –120 AMPLITUDE (dBFS) –120 AMPLITUDE (dBFS) –140 –140 –140 –160 –160 –160 –180 –180 –180 0 20 40 60 80 100 0 20 40 60 80 100 0 20 40 60 80 100 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 234816 G10 234816 G11 234816 G12
32k Point FFT fSMPL = 200kHz, SNR, SINAD vs VREFBUF, THD, Harmonics vs VREFBUF, fIN = 2kHz fIN = 2kHz fIN = 2kHz
0 96.0 –100.0 ±5.12V RANGE ±2.5 • VREFBUF RANGE ±2.5 • VREFBUF RANGE –20 TRUE BIPOLAR DRIVE (IN– = 0V) TRUE BIPOLAR DRIVE (IN– = 0V) TRUE BIPOLAR DRIVE (IN– = 0V) –105.0 –40 SNR = 92.0dB 95.0 THD = –113dB THD –60 SINAD = 92.0dB SNR –110.0 SFDR = 114dB 94.0 –80 2ND SINAD –115.0 –100 93.0 3RD –120 AMPLITUDE (dBFS) SNR, SINAD (dBFS) –120.0 –140 THD, HARMONICS (dBFS) 92.0 –125.0 –160 –180 91.0 –130.0 0 20 40 60 80 100 2.5 3 3.5 4 4.5 5 2.5 3 3.5 4 4.5 5 FREQUENCY (kHz) REFBUF VOLTAGE (V) REFBUF VOLTAGE (V) 234816 G13 234816 G14 234816 G15
SNR, SINAD THD, Harmonics THD, Harmonics THD, Harmonics vs Input THD, Harmonics vs Input vs Input Frequency vs Input Frequency Common Mode, fIN = 2kHz
100.0 –70.0 0 ±10.24V RANGE ±10.24V RANGE ±10.24V RANGE TRUE BIPOLAR DRIVE (IN– = 0V) TRUE BIPOLAR DRIVE (IN– = 0V) –20 2VP-P FULLY DIFFERENTIAL DRIVE 96.0 –80.0 –40 SNR –14.5V ≤ V 92.0 CM ≤ 10.5V –90.0 –60 SINAD 88.0 –100.0 –80 –100 84.0 SNR, SINAD (dBFS) –110.0 THD THD, HARMONICS (dBFS) 2ND THD, HARMONICS (dBFS) –120 THD 80.0 –120.0 3RD –140 3RD 2ND 76.0 –130.0 –160 100 1k 10k 100k 100 1k 10k 100k –15 –10 –5 0 5 10 15 FREQUENCY (Hz) FREQUENCY (Hz) INPUT COMMON MODE (V) 234816 G16 234816 G17 234816 G18 234816fa 10 For more information www.linear.com/LTC2348-16 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Reference Buffer Characteristics Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Configuration Tables Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Revision History Typical Application Related Parts