Datasheet LTC1196, LTC1198 (Analog Devices) - 10

LTC1196/LTC1198
TYPICAL PERFORMANCE CHARACTERISTICS FFT Output of 455kHz AM Signal 4096 Point FFT Plot at 5V 4096 Point FFT Plot at 2.7V Digitized at 1Msps
0 0 0 VCC = 5V VCC = 2.7V VCC = 5V –10 f –10 –10 IN = 29kHz fIN = 29kHz fIN = 455kHz WITH 20kHz AM f f f –20 SMPL = 882kHz –20 SMPL = 340kHz –20 SMPL = 1MHz –30 –30 –30 –40 –40 –40 –50 –50 –50 –60 –60 –60 MAGNITUDE (dB) MAGNITUDE (dB) MAGNITUDE (dB) –70 –70 –70 –80 –80 –80 –90 –90 –90 –100 –100 –100 0 100 200 300 400 500 0 50 100 150 200 0 100 200 300 400 500 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 1196/98 G25 1196/98 G26 1196/98 G27
Power Supply Feedthrough Power Supply Feedthrough S/(N + D) vs Reference Voltage vs Ripple Frequency vs Ripple Frequency and Input Frequency
0 0 50 TA = 25°C TA = 25°C V VCC (VRIPPLE = 10mV) –10 CC (VRIPPLE = 20mV) –10 fCLK = 12MHz fCLK = 5MHz f 45 IN = 500kHz fIN = 200kHz –20 –20 fIN = 100kHz 40 –30 –30 –40 –40 35 - FEEDTHROUGH (dB) –50 FEEDTHROUGH (dB) –50 30 –60 –60 SIGNAL TO NOISE PLUS DISTORTION (dB) VCC = 5V –70 –70 25 1k 10k 100k 1M 1k 10k 100k 1M 1.25 1.75 2.25 2.75 3.25 3.75 4.25 4.75 5.25 RIPPLE FREQUENCY (Hz) RIPPLE FREQUENCY (Hz) REFERENCE VOLTAGE (V) 1196/98 G28 1196/98 G29 1196/98 G30
Intermodulation Distortion at 2.7V Intermodulation Distortion at 5V S/(N + D) vs Input Level
0 0 50 VCC = 2.7V VCC = 5V VREF = VCC = 5V –10 f1 = 100kHz –10 f1 = 200kHz fIN = 500kHz f2 = 110kHz f2 = 210kHz f –20 –20 40 SMPL = 1MHz fSMPL = 420kHz fSMPL = 750kHz –30 –30 –40 –40 30 –50 –50 –60 –60 20 MAGNITUDE (dB) MAGNITUDE (dB) –70 –70 –80 –80 10 –90 –90 SIGNAL TO NOISE-PLUS-DISTORTION (dB) –100 –100 0 0 50 100 150 200 250 0 100 200 300 400 –40 –35 –30 –25 –20 –15 –10 –5 0 FREQUENCY (kHz) FREQUENCY (kHz) INPUT LEVEL (dB) 1196/98 G31 1196/98 G32 1196/98 G33 119698fb 10