Datasheet LTC1400 (Analog Devices) - 5

LTC1400
W U TYPICAL PERFOR A CE CHARACTERISTICS Differential Nonlinearity vs Integral Nonlinearity vs S/(N + D) vs Input Frequency Output Code Output Code and Amplitude
1.00 1.00 80 f V SAMPLE = 400kHz fSAMPLE = 400kHz IN = 0dB 0.75 0.75 70 0.50 0.50 60 VIN = –20dB 0.25 0.25 50 0 0 40 –0.25 –0.25 30 –0.50 –0.50 20 VIN = –60dB INTEGRAL NONLINEARITY (LSBs) DIFFERENTIAL NONLINEARITY (LSBs) –0.75 –0.75 SIGNAL/(NOISE + DISTORTION) (dB) 10 fSAMPLE = 400kHz –1.00 –1.00 0 0 512 1024 1536 2048 2560 3072 3584 4096 0 512 1024 1536 2048 2560 3072 3584 4096 10 100 1000 OUTPUT CODE OUTPUT CODE INPUT FREQUENCY (kHz) 1400 TPC01 1400 TPC02 1400 TPC06
Signal-to-Noise Ratio (Without Peak Harmonic or Spurious Noise Acquisition Time vs Harmonics) vs Input Frequency vs Input Frequency Source Impedance
80 0 4500 f T –10 SAMPLE = 400kHz A = 25°C 70 4000 –20 60 3500 –30 3000 50 –40 2500 40 –50 2000 30 –60 –70 1500 20 ACQUISITION TIME (ns) 1000 SIGNAL-TO-NOISE RATIO (dB) –80 10 –90 500 f SPURIOUS-FREE DYNAMIC RANGE (dB) SAMPLE = 400kHz 0 –100 0 10 100 1000 10 100 1000 10 100 1000 10000 INPUT FREQUENCY (kHz) INPUT FREQUENCY (kHz) RSOURCE (Ω) 1400 TPC08 1400 TPC05 1400 TPC07
Reference Voltage vs Power Supply Feedthrough vs Load Current Ripple Frequency Supply Current vs Temperature
2.435 0 20 fSAMPLE = 400kHz fSAMPLE = 400kHz 2,430 –10 –20 2.425 15 –30 2.420 –40 2.415 –50 10 2.410 –60 VSS (VRIPPLE = 10mV) 2.405 –70 REFERENCE VOLTAGE (V) SUPPLY CURRENT (mA) 2.400 5 –80 V 2.395 –90 CC (VRIPPLE = 1mV) 2.390 –100 0 –8 –7 –6 –5 –4 –3 –2 –1 0 1 2 AMPLITUDE OF POWER SUPPLY FEEDTHROUGH (dB) 1 10 100 1000 –50 –25 0 25 50 75 100 125 LOAD CURRENT (mA) RIPPLE FREQUENCY (kHz) TEMPERATURE (°C) 1400 TPC07.5 1400 TPC03 1400 TPC04 1400fa 5