Datasheet LTC1594, LTC1598 (Analog Devices) - 5

LTC1594/LTC1598
W U TYPICAL PERFORMANCE CHARACTERISTICS Change in Offset Change in Linearity vs Reference Voltage Change in Offset vs Temperature vs Reference Voltage
3.0 0 – 0 .50 ) T T A = 25°C A = 25°C – 0 .45 V V REF CC = 5V CC = 5V 2.5 f – 0.5 CLK = 320kHz – 0 .40 fCLK = 320kHz f f SMPL = 16.8kHz SMPL = 16.8kHz – 0 .35 2.0 –1.0 – 0 .30 1.5 –1.5 – 0 .25 – 0 .20 1.0 – 2.0 – 0 .15 CHANGE IN OFFSET (LSB) CHANGE IN LINEARITY (LSB) VCC = VREF = 5V – 0 .10 0.5 – 2.5 fCLK = 320kHz – 0 .05 CHANGE IN OFFSET (LSB = 1/4096 V fSMPL = 16.8kHz 0 – 3.0 01.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 – 55 – 35 – 15 5 25 45 65 85 REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) TEMPERATURE (°C) 1594/98 G06 1594/98 G04 1594/98 G05
Change in Gain Peak-to-Peak ADC Noise vs Reference Voltage vs Reference Voltage Differential Nonlinearity vs Code
–10 2.0 1.0 TA = 25°C TA = 25°C –9 V 0.8 CC = 5V VCC = 5V –8 fCLK = 320kHz fCLK = 320kHz 0.6 fSMPL = 16.8kHz 1.5 –7 0.4 –6 0.2 –5 1.0 0.0 –4 – 0.2 –3 CHANGE IN GAIN (LSB) ADC NOISE IN LBSs – 0.4 0.5 –2 – 0.6 –1 – 0.8 DIFFERENTIAL NONLINEARITY ERROR (LBS) 0 0 –1.0 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 1 2 3 4 5 0 2048 4096 REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) CODE 1594/98 G07 1594/98 G08 1594/98 G09
Effective Bits and S/(N + D) Spurious Free Dynamic Range vs Input Frequency vs Frequency S/(N + D) vs Input Level
12 74 100 80 11 68 TA = 25°C 90 70 VCC = VREF = 5V 10 62 fIN = 1kHz 80 9 56 60 fSMPL = 16.8kHz 70 8 50 50 7 44 60 6 38 50 40 5 40 30 4 30 3 TA = 25°C 20 V 20 2 CC = 5V TA = 25°C EFFECTIVE NUMBER OF BITS (ENOBs) fCLK = 320kHz V 10 1 10 CC = VREF = 5V f SPURIOUS FREE DYNAMIC RANGE (dB) SMPL = 16.8kHz fSMPL = 16.8kHz SIGNAL-TO-NOISE PLUS DISTORTION (dB) 0 0 0 1 10 100 1000 1 10 100 1000 – 40 – 30 –20 –10 0 INPUT FREQUENCY (kHz) INPUT FREQUENCY (kHz) INPUT LEVEL (dB) 1594/98 G10 1594/98 G11 1594/98 G12 15948fb 5