Datasheet LTC2192, LTC2191, LTC2190 (Analog Devices) - 4

LTC2192 LTC2191/LTC2190
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) LTC2192 LTC2191 LTC2190 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 77 76.9 77.1 dBFS 30MHz Input l 75.3 76.9 75.2 76.8 75.6 77 dBFS 70MHz Input 76.8 76.7 76.9 dBFS 140MHz Input 76.3 76.2 76.4 dBFS SFDR Spurious Free Dynamic Range 5MHz Input 90 90 90 dBFS 2nd Harmonic 30MHz Input l 83 90 83 90 83 90 dBFS 70MHz Input 89 89 89 dBFS 140MHz Input 84 84 84 dBFS Spurious Free Dynamic Range 5MHz Input 90 90 90 dBFS 3rd Harmonic 30MHz Input l 84 90 84 90 84 90 dBFS 70MHz Input 89 89 89 dBFS 140MHz Input 84 84 84 dBFS Spurious Free Dynamic Range 5MHz Input 95 95 95 dBFS 4th Harmonic or Higher 30MHz Input l 89 95 89 95 89 95 dBFS 70MHz Input 95 95 95 dBFS 140MHz Input 95 95 95 dBFS S/(N+D) Signal-to-Noise Plus 5MHz Input 76.8 76.7 76.9 dBFS Distortion Ratio 30MHz Input l 74.8 76.7 74.8 76.6 75 76.8 dBFS 70MHz Input 76.4 76.3 76.5 dBFS 140MHz Input 76.3 75.2 76.4 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
DIGITAL INPUTS AND OUTPUTS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS ENCODE INPUTS (ENC+, ENC–) Differential Encode Mode (ENC– Not Tied to GND)
VID Differential Input Voltage (Note 8) l 0.2 V VICM Common Mode Input Voltage Internally Set 1.2 V Externally Set (Note 8) l 1.1 1.6 V VIN Input Voltage Range ENC+, ENC– to GND (Note 8) l 0.2 3.6 V RIN Input Resistance See Figure 10 10 kΩ CIN Input Capacitance (Note 8) 3.5 pF 219210f 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Converter Characteristics Analog Input Dynamic Accuracy Internal Reference Characteristics Digital Inputs And Outputs Power Requirements Timing Characteristics Timing Diagrams Typical Performance Characteristics Pin Functions Functional Block Diagram Applications Information Typical Applications Package Description Typical Application Related Parts