Datasheet LTC1405 (Analog Devices) - 6

LTC1405
W U TYPICAL PERFORMANCE CHARACTERISTICS SFDR vs Input Frequency, SFDR vs Input Frequency, Differential Input Differential Input Grounded Input Histogram
–50 –50 DUAL SUPPLIES SINGLE SUPPLY VREF = 4.096V 410554 –55 ±2.048V RANGE –55 ±1.024V RANGE GAIN = 1× GAIN = 1× GAIN = 2× –60 A –60 IN = 0dBFS AIN = 0dBFS –65 –65 –70 –70 –75 –75 HITS SFDR (dB) –80 SFDR (dB) –80 –85 –85 –90 –90 –95 –95 1570 1572 –100 –100 0.1 1 10 100 0.1 1 10 100 N – 1 N N + 1 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) CODE 1405 F07 1405 F08 1420 F09
IDD vs Clock Frequency ISS vs Clock Frequency CMRR vs Input Frequency
23 0.7 90 80 22 0.6 70 0.5 21 60 VREF = 4.096V 0.4 50 (mA) 20 (mA) 40 I DD V 0.3 REF = 2.048V I SS CMRR (dB) 19 30 0.2 20 18 0.1 10 17 0 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.01 0.1 1 10 CLOCK FREQUENCY (MHz) CLOCK FREQUENCY (MHz) INPUT FREQUENCY (MHz) 1405 G10 1405 G11 1405 G12
LTC1405 Nonaveraged 4096 Point FFT
0 fSAMPLE = 5Msps f –20 IN = 2.515869141MHz SFDR = 86.2dB SINAD = 71.3dB –40 VIN = 4VP-P ± 5V SUPPLIES –60 AMPLITUDE (dB) –80 –100 –120 0 0.5 1.0 1.5 2.0 2.5 FREQUENCY (MHz) 1405 • G13 1405fa 6