Datasheet LTC1197, LTC1197L, LTC1199, LTC1199L (Analog Devices) - 7

LTC1197/LTC1197L LTC1199/LTC1199L
W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current Supply Current vs Clock Rate* Supply Current vs Supply Voltage vs Sampling Frequency
20 16 80 10000 fCLK = 3.5MHz 18 14 TA = 25°C 70 16 VCC = 9V SHUTDOWN CURRENT (nA) 1000 12 60 V 14 µA) CC = 5V fCLK = 7.2MHz ACTIVE 12 10 50 MODE 100 10 8 40 8 10 6 30 6 VCC = 2.7V SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) SUPPLY CURRENT ( f 4 20 CLK = 3.5MHz 4 VCC = 5V 1 SHUTDOWN 2 2 10 VCC = 2.7V MODE 0 0 0 0.1 10 100 1000 10000 0 1 2 3 4 5 6 7 8 9 0.01 0.1 1 10 100 1000 FREQUENCY (kHz) SUPPLY VOLTAGE (V) SAMPLING FREQUENCY (kHz) 1197/99 G01 1197/99 G02 1197/99 G03
INL Plot DNL Plot LTC1197 4096 Point FFT
1.0 1.0 0 VCC = VREF = 5V VCC = VREF = 5V fSMPL = 500kHz fCLK = 7.2MHz f –10 CLK = 7.2MHz fIN = 97.045898kHz TA = 25°C TA = 25°C – 20 0.5 0.5 – 30 – 40 0 0 – 50 INL (LSBs) DNL (LSBs) – 60 AMPLITUDE (dB) –70 – 0.5 – 0.5 – 80 – 90 –1.0 –1.0 –100 0 128 256 384 512 640 768 896 1024 0 128 256 384 512 640 768 896 1024 0 50 100 150 200 250 CODE CODE FREQUENCY (kHz) 1197/99 G04 1197/99 G26 1197/99 G06
ENOBs vs Frequency THD vs Frequency Intermodulation Distortion Plot
10 0 0 TA = 25°C fSMPL = 500kHz 9 –10 – 10 fIN1 = 97.045898kHz V f 8 CC = 2.7V – 20 IN2 = 102.905273kHz fSMPL = 250kHz – 20 7 VCC = 5V – 30 fSMPL = 500kHz – 30 6 – 40 5 – 40 – 50 ENOBs THD (dB) VCC = 2.7V 4 – 50 – 60 fSMPL = 250kHz AMPLITUDE (dB) 3 – 70 – 60 2 – 80 VCC = 5V – 70 1 fSMPL = 500kHz – 90 0 – 80 –100 1 10 100 1000 10 100 1000 0 50 100 150 200 250 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 1197/99 G07 1197/99 G08 1197/99 G09 *Part is continuously sampling, spending only a minimum amount of time in shutdown. 7