Datasheet LTC2357-16 (Analog Devices) - 10

LTC2357-16
Typical perForMance characTerisTics TA = 25°C, VCC = +15V, VEE = –15V, VDD = 5V, OVDD = 2.5V, Internal Reference and Buffer (VREFBUF  = 4.096V), fSMPL = 350ksps, unless otherwise noted. 32k Point Arbitrary Two-Tone FFT 32k Point FFT fSMPL = 350ksps, 32k Point FFT fSMPL = 350ksps, f f SMPL = 350ksps, 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 = 94.2dB –40 SNR = 94.2dB –40 SFDR = 121dB THD = –110dB THD = –117dB SNR = 94.2dB –60 SINAD = 94.1dB –60 SINAD = 94.1dB –60 SFDR = 112dB 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 25 50 75 100 125 150 175 0 25 50 75 100 125 150 175 0 25 50 75 100 125 150 175 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 235716 G10 235716 G11 235716 G12
32k Point FFT fSMPL = 350ksps, SNR, SINAD vs VREFBUF, THD, Harmonics vs VREFBUF, fIN = 2kHz fIN = 2kHz fIN = 2kHz
0 96 –100 ±5.12V RANGE ±2.5 • V ±2.5 • V REFBUF RANGE REFBUF RANGE –20 TRUE BIPOLAR DRIVE (IN– = 0V) TRUE BIPOLAR DRIVE (IN– = 0V) TRUE BIPOLAR DRIVE (IN– = 0V) –105 –40 SNR = 91.7dB 95 THD = –112dB SNR –60 SINAD = 91.6dB –110 THD SFDR = 116dB 94 –80 SINAD –115 –100 2ND 93 –120 AMPLITUDE (dBFS) SNR, SINAD (dBFS) –120 –140 THD, HARMONICS (dBFS) 3RD 92 –125 –160 –180 91 –130 0 25 50 75 100 125 150 175 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) 235716 G13 235716 G14 235716 G15
SNR, SINAD THD vs Input Frequency and THD, Harmonics vs Input vs Input Frequency Source Resistance Common Mode, fIN = 2kHz
100 –60 0 ±10.24V RANGE ±10.24V RANGE 95 TRUE BIPOLAR DRIVE (IN– = 0V) 2V –70 –20 P–P FULLY DIFFERENTIAL DRIVE 90 SNR –40 –80 10kΩ 85 SINAD –60 COMMON MODE LIMITS SOURCE –90 –11V ≤ VCM ≤ 11V 80 –80 –100 75 THD (dBFS) –100 SNR, SINAD (dBFS) –110 THD 3RD 70 THD, HARMONICS (dBFS) –120 50Ω SOURCE 65 ±10.24V RANGE –120 1kΩ –140 TRUE BIPOLAR DRIVE (IN– = 0V) SOURCE 2ND 60 –130 –160 10 100 1k 10k 100k 10 100 1k 10k 100k –15 –10 –5 0 5 10 15 FREQUENCY (Hz) FREQUENCY (Hz) INPUT COMMON MODE (V) 235716 G16 235716 G17 235716 G18 235716f 10 For more information www.linear.com/LTC2357-16 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration 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 Typical Application Related Parts