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LTC2348-16 Datasheet(PDF) 23 Page - Linear Technology |
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LTC2348-16 Datasheet(HTML) 23 Page - Linear Technology |
23 / 40 page LTC2348-16 23 234816fa For more information www.linear.com/LTC2348-16 applicaTions inForMaTion SFDR = 119dB SNR = 94.4dB ±10.24V RANGE 6.2kHz FREQUENCY (kHz) 0 20 40 60 80 100 –180 –160 –140 –120 –100 –80 –60 –40 –20 0 234816 F06b Arbitrary Drive Figure 6b. Two-Tone Test. IN+ = –7dBFS 2kHz Sine, IN– = –7dBFS 3.1kHz Sine, 32k Point FFT, fSMPL = 200ksps. Circuit Shown in Figure 6a with LT1469 Amplifiers, RFILT = 49.9Ω, CFILT = 1000pF SNR = 94.4dB THD = –119dB SINAD = 94.4dB SFDR = 121dB ±10.24V RANGE FREQUENCY (kHz) 0 20 40 60 80 100 –180 –160 –140 –120 –100 –80 –60 –40 –20 0 Fully Differential Drive 234816 F06c Figure 6c. IN+/IN– = –1dBFS 2kHz Fully Differential Sine, VCM = 0V, 32k Point FFT, fSMPL = 200ksps. Circuit Shown in Figure 6a with LT1469 Amplifiers, RFILT = 49.9Ω, CFILT = 1000pF –15V –15V 15V 15V LTC2348-16 234816 F06a ONLY CHANNEL 0 SHOWN FOR CLARITY +5V 0V –5V FULLY DIFFERENTIAL +10V 0V –10V TRUE BIPOLAR +10V 0V –10V ARBITRARY +10V 0V –10V UNIPOLAR – + 0.1µF 0.1µF 0.1µF 47µF IN0+ IN0– AMPLIFIER AMPLIFIER VCC REFIN REFBUF VEE OPTIONAL LOWPASS FILTERS CFILT CFILT RFILT RFILT IN+ IN– Figure 6a. Buffering Arbitrary, Fully Differential, True Bipolar, and Unipolar Signals. See Table 2 For Recommended Amplifier and Filter Combinations SNR = 94.4dB THD = –109dB SINAD = 94.3dB SFDR = 110dB ±10.24V RANGE FREQUENCY (kHz) 0 20 40 60 80 100 –180 –160 –140 –120 –100 –80 –60 –40 –20 0 True Bipolar Drive 234816 F06d Figure 6d. IN+ = –1dBFS 2kHz True Bipolar Sine, IN– = 0V, 32k Point FFT, fSMPL = 200ksps. Circuit Shown in Figure 6a with LT1469 Amplifiers, RFILT = 49.9Ω, CFILT = 1000pF SNR = 90.1dB THD = –111dB SINAD = 90.1dB SFDR = 112dB 0V TO 10.24V RANGE FREQUENCY (kHz) 0 20 40 60 80 100 –180 –160 –140 –120 –100 –80 –60 –40 –20 0 Unipolar Drive 234816 F06e Figure 6e. IN+ = –1dBFS 2kHz Unipolar Sine, IN– = 0V, 32k Point FFT, fSMPL = 200ksps. Circuit Shown in Figure 6a with LT1469 Amplifiers, RFILT = 49.9Ω, CFILT = 1000pF |
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