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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC2248 датащи(PDF) 3 Page - Linear Technology |
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LTC2248 датащи(HTML) 3 Page - Linear Technology |
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3 / 24 page  LTC2248/LTC2247/LTC2246 3 224876fa SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Analog Input Range (AIN+ – AIN–) 2.7V < VDD < 3.4V (Note 7) ● ±0.5V to ±1V V VIN,CM Analog Input Common Mode (AIN+ + AIN–)/2 Differential Input (Note 7) ● 1 1.5 1.9 V Single Ended Input (Note 7) ● 0.5 1.5 2 V IIN Analog Input Leakage Current 0V < AIN+, AIN– < VDD ● –1 1 µA ISENSE SENSE Input Leakage 0V < SENSE < 1V ● –3 3 µA IMODE MODE Pin Leakage ● –3 3 µA tAP Sample-and-Hold Acquisition Delay Time 0 ns tJITTER Sample-and-Hold Acquisition Delay Time Jitter 0.2 psRMS CMRR Analog Input Common Mode Rejection Ratio 80 dB Full Power Bandwidth Figure 8 Test Circuit 575 MHz The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Note 4) LTC2248 LTC2247 LTC2246 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS SNR Signal-to-Noise Ratio 5MHz Input 74.3 74.4 74.5 dB 12.5MHz Input ● 72.9 74.2 dB 20MHz Input ● 72.9 74.4 dB 30MHz Input ● 72.5 74.3 dB 70MHz Input 74.3 73.9 73.4 dB 140MHz Input 73.9 73.3 73 dB SFDR 5MHz Input 90 90 90 dB 12.5MHz Input ● 76 90 dB 20MHz Input ● 76 90 dB 30MHz Input ● 76 90 dB 70MHz Input 85 85 85 dB 140MHz Input 80 80 80 dB SFDR 5MHz Input 95 95 95 dB 12.5MHz Input ● 84 95 dB 20MHz Input ● 84 95 dB 30MHz Input ● 84 95 dB 70MHz Input 95 95 95 dB 140MHz Input 90 90 90 dB S/(N+D) 5MHz Input 74.3 74.4 74.5 dB 12.5MHz Input ● 72.2 74.2 dB 20MHz Input ● 72.2 74.3 dB 30MHz Input ● 72 74.2 dB 70MHz Input 74.1 73.6 73.4 dB 140MHz Input 71.9 71.9 71.8 dB IMD Intermodulation fIN1 = 28.2MHz 90 90 90 dB Distortion fIN2 = 26.8MHz A ALOG I PUT DY A IC ACCURACY The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) Signal-to-Noise Plus Distortion Ratio Spurious Free Dynamic Range 4th Harmonic or Higher Spurious Free Dynamic Range 2nd or 3rd Harmonic |
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