Datasheet LTC2283 (Analog Devices) - 3

制造商Analog Devices
描述Dual 12-Bit, 125Msps Low Power 3V ADC
页数 / 页24 / 3 — The. CONVERTER CHARACTERISTICS. denotes the specifi cations which apply …
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The. CONVERTER CHARACTERISTICS. denotes the specifi cations which apply over the full operating

The CONVERTER CHARACTERISTICS denotes the specifi cations which apply over the full operating

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LTC2283
The CONVERTER CHARACTERISTICS
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Offset Matching ±2 mV Transition Noise SENSE = 1V 0.32 LSBRMS
ANALOG INPUT The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + – IN Analog Input Range (AIN –AIN ) 2.85V < VDD < 3.4V (Note 7) ● ±0.5V to ±1V V V + – IN,CM Analog Input Common Mode (AIN +AIN )/2 Differential Input Drive (Note 7) ● 1 1.5 1.9 V Single Ended Input Drive (Note 7) ● 0.5 1.5 2 V I + – IN Analog Input Leakage Current 0V < AIN , AIN < VDD ● –1 1 μA ISENSE SENSEA, SENSEB Input Leakage 0V < SENSEA, SENSEB < 1V ● –3 3 μA IMODE MODE Input Leakage Current 0V < MODE < VDD ● –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 640 MHz
DYNAMIC ACCURACY The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. AIN = –1dBFS. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 70.2 dB 30MHz Input 70.1 dB 70MHz Input ● 68 70 dB 140MHz Input 69.6 dB SFDR Spurious Free Dynamic Range 5MHz Input 88 dB 2nd or 3rd Harmonic 30MHz Input 85 dB 70MHz Input ● 70 82 dB 140MHz Input 78 dB SFDR Spurious Free Dynamic Range 5MHz Input 90 dB 4th Harmonic or Higher 30MHz Input 90 dB 70MHz Input ● 77 90 dB 140MHz Input 90 dB S/(N+D) Signal-to-Noise Plus Distortion Ratio 5MHz Input 69.8 dB 30MHz Input 69.7 dB 70MHz Input ● 67 69.6 dB 140MHz Input 69.5 dB IMD Intermodulation Distortion fIN = 40MHz, 41MHz 85 dB Crosstalk fIN = 100MHz –110 dB 2283fb 3