Datasheet LTC2162, LTC2161, LTC2160 (Analog Devices) - 5

LTC2162/LTC2161/LTC2160
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) LTC2162 LTC2161 LTC2160 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
SFDR Spurious Free Dynamic Range 5MHz Input 90 90 90 dBFS 3rd Harmonic 30MHz Input l 83 90 84 90 84 90 dBFS 70MHz Input 89 89 89 dBFS 140MHz Input 84 84 84 dBFS SFDR Spurious Free Dynamic Range 5MHz Input 95 95 95 dBFS 4th Harmonic or Higher 30MHz Input l 88 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 75 76.7 75 76.6 74.9 76.8 dBFS 70MHz Input 76.4 76.3 76.5 dBFS 140MHz Input 76.3 75.2 76.4 dBFS
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 l 0.2 3.6 V RIN Input Resistance (See Figure 10) 10 kΩ CIN Input Capacitance (Note 8) 3.5 pF
SINGLE-ENDED ENCODE MODE (ENC– TIED TO GND)
VIH High Level Input Voltage VDD = 1.8V l 1.2 V VIL Low Level Input Voltage VDD = 1.8V l 0.6 V VIN Input Voltage Range ENC+ to GND l 0 3.6 V RIN Input Resistance (See Figure 11) 30 kΩ CIN Input Capacitance (Note 8) 3.5 pF 216210f 5 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 Electrical Characteristics Timing Diagrams Typical Performance Characteristics Pin Functions Functional Block Diagram Applications Information Typical Applications Package Description Typical Application Related Parts