Datasheet LTC1282 (Analog Devices) - 7

LTC1282
W U TYPICAL PERFOR A CE CHAR C A TERISTICS S/(N + D) vs Input Frequency and S/(N + D) vs Input Frequency and Spurious Free Dynamic Range Amplitude (Unipolar, VDD = 3V) Amplitude (Bipolar,
±
3V Supplies) vs Input Frequency
80 80 0 V f IN = 0dB SAMPLE = 160kHz V f IN = 0dB SAMPLE = 160kHz fSAMPLE = 160kHz 70 UNIPOLAR 70 –10 VDD = 3V –20 UNIPOLAR 60 60 VIN = –20dB VIN = –20dB –30 50 50 –40 40 40 –50 30 30 –60 AMPLITUDE (dB) –70 20 20 VIN = –60dB VIN = –60dB –80 SIGNAL/(NOISE + DISTORTION) (dB) 10 SIGNAL/(NOISE + DISTORTION) (dB) 10 –90 0 0 –100 1k 10k 100k 1M 10M 1k 10k 100k 1M 10M 100 1k 10k 100k 1M INPUT FREQUENCY (Hz) INPUT FREQUENCY (Hz) INPUT FREQUENCY (Hz) LTC1282 • TPC10 LTC1282 • TPC10 LTC1282 • TPC12
Reference Voltage S/(N +D) vs Input Frequency vs Change in Offset Voltage vs Load Current Source Resistance (Bipolar) vs Temperature
1.220 80 5 V fSAMPLE = 140kHz 1.215 DD = 3V R 70 S = 50Ω VDD = 2.7V R 1.210 S = 500Ω 4 60 1.205 RS = 1k 50 R 1.200 S = 5k 3 1.195 40 1.190 30 2 1.185 REFERENCE VOLTAGE (V) 20 1.180 V 1 DD = 3V SIGNAL/(NOISE + DISTORTION) (dB) 10 1.175 VSS = –3V BIPOLAR 1.170 0 0 MAGNITUDE OF OFFSET VOLTAGE CHANGE (LSBs) –5 –4 –3 –2 –1 0 1 1k 10k 100k 1M 10M –50 –25 0 25 50 75 100 125 LOAD CURRENT (mA) INPUT FREQUENCY (Hz) TEMPERATURE (°C) LTC1282 • TPC14 LTC1282 • TPC13 LTC1282 • TPC15
Change in Gain Error Change in Integral Nonlinearity Change in Differential vs Temperature (INL) vs Temperature Nonlinearity (DNL) vs Temperature
5 0.5 0.5 fSAMPLE = 140kHz fSAMPLE = 140kHz fSAMPLE = 140kHz VDD = 2.7V VDD = 2.7V VDD = 2.7V 4 0.4 0.4 3 0.3 0.3 2 0.2 0.2 MAGNITUDE OF MAGNITUDE OF 1 0.1 0.1 INTEGRAL NONLINEARITY CHANGE (LSBs) MAGNITUDE OF GAIN ERROR CHANGE (LSBs) 0 0 DIFFERENTIAL NONLINEARITY CHANGE (LSBs) 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) LTC1282 • TPC16 LTC1282 • TPC17 LTC1282 • TPC18 7