Datasheet LTC2145-12, LTC2144-12, LTC2143-12 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 12-Bit, 125Msps Low Power Dual ADCs |
| Pages / Page | 38 / 5 — DYNAMIC ACCURACY. The. denotes the specifications which apply over the … |
| File Format / Size | PDF / 1.0 Mb |
| Document Language | English |
DYNAMIC ACCURACY. The. denotes the specifications which apply over the full operating temperature range,
Model Line for this Datasheet
- LTC2143CUP-12#PBF LTC2143CUP-12#PBF LTC2143CUP-12#TRPBF LTC2143CUP-12#TRPBF LTC2143IUP-12#PBF LTC2143IUP-12#PBF LTC2143IUP-12#TRPBF LTC2143IUP-12#TRPBF
Text Version of Document
LTC2145-12/ LTC2144-12/LTC2143-12
DYNAMIC ACCURACY The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Note 5) LTC2145-12 LTC2144-12 LTC2143-12 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 70.6 70.5 70.8 dBFS 70MHz Input l 69.4 70.5 69.2 70.4 69.6 70.7 dBFS 140MHz Input 70.3 70.2 70.5 dBFS SFDR Spurious Free Dynamic Range 5MHz Input 89 89 89 dBFS 2nd Harmonic 70MHz Input l 76 88 77 88 78 88 dBFS 140MHz Input 84 84 84 dBFS Spurious Free Dynamic Range 5MHz Input 89 89 89 dBFS 3rd Harmonic 70MHz Input l 79 88 79 88 80 88 dBFS 140MHz Input 84 84 84 dBFS Spurious Free Dynamic Range 5MHz Input 95 95 95 dBFS 4th Harmonic or Higher 70MHz Input l 84 95 84 95 84 95 dBFS 140MHz Input 95 95 95 dBFS S/(N+D) Signal-to-Noise Plus 5MHz Input 70.5 70.4 70.7 dBFS Distortion Ratio 70MHz Input l 69 70.4 68.9 70.3 69.4 70.6 dBFS 140MHz Input 70 69.9 70.2 dBFS Crosstalk 10MHz Input –110 –110 –110 dBc
INTERNAL REFERENCE CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) PARAMETER CONDITIONS MIN TYP MAX UNITS
VCM Output Voltage IOUT = 0 0.5 • VDD – 25mV 0.5 • VDD 0.5 • VDD + 25mV V VCM Output Temperature Drift ±25 ppm/°C VCM Output Resistance –600μA < IOUT < 1mA 4 Ω VREF Output Voltage IOUT = 0 1.225 1.250 1.275 V VREF Output Temperature Drift ±25 ppm/°C VREF Output Resistance –400μA < IOUT < 1mA 7 Ω VREF Line Regulation 1.7V < VDD < 1.9V 0.6 mV/V 21454312fa 5
DYNAMIC ACCURACY The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Note 5) LTC2145-12 LTC2144-12 LTC2143-12 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 70.6 70.5 70.8 dBFS 70MHz Input l 69.4 70.5 69.2 70.4 69.6 70.7 dBFS 140MHz Input 70.3 70.2 70.5 dBFS SFDR Spurious Free Dynamic Range 5MHz Input 89 89 89 dBFS 2nd Harmonic 70MHz Input l 76 88 77 88 78 88 dBFS 140MHz Input 84 84 84 dBFS Spurious Free Dynamic Range 5MHz Input 89 89 89 dBFS 3rd Harmonic 70MHz Input l 79 88 79 88 80 88 dBFS 140MHz Input 84 84 84 dBFS Spurious Free Dynamic Range 5MHz Input 95 95 95 dBFS 4th Harmonic or Higher 70MHz Input l 84 95 84 95 84 95 dBFS 140MHz Input 95 95 95 dBFS S/(N+D) Signal-to-Noise Plus 5MHz Input 70.5 70.4 70.7 dBFS Distortion Ratio 70MHz Input l 69 70.4 68.9 70.3 69.4 70.6 dBFS 140MHz Input 70 69.9 70.2 dBFS Crosstalk 10MHz Input –110 –110 –110 dBc
INTERNAL REFERENCE CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) PARAMETER CONDITIONS MIN TYP MAX UNITS
VCM Output Voltage IOUT = 0 0.5 • VDD – 25mV 0.5 • VDD 0.5 • VDD + 25mV V VCM Output Temperature Drift ±25 ppm/°C VCM Output Resistance –600μA < IOUT < 1mA 4 Ω VREF Output Voltage IOUT = 0 1.225 1.250 1.275 V VREF Output Temperature Drift ±25 ppm/°C VREF Output Resistance –400μA < IOUT < 1mA 7 Ω VREF Line Regulation 1.7V < VDD < 1.9V 0.6 mV/V 21454312fa 5
