LTC1750 ELECTRICAL CHARACTERISTICSNote 1: Absolute Maximum Ratings are those values beyond which the life Note 5: VDD = 5V, fSAMPLE = 80MHz, differential ENC/ENC = 2VP-P 80MHz of a device may be impaired. sine wave, input range = ±1.125V differential, unless otherwise specified. Note 2: All voltage values are with respect to GND (unless otherwise Note 6: Integral nonlinearity is defined as the deviation of a code from a noted). straight line passing through the actual endpoints of the transfer curve. Note 3: When these pin voltages are taken below GND or above V The deviation is measured from the center of the quantization band. DD, they will be clamped by internal diodes. This product can handle input currents Note 7: Bipolar offset is the offset voltage measured from – 0.5 LSB of greater than 100mA below GND or above VDD without latchup. when the output code flickers between 00 0000 0000 0000 and 11 Note 4: When these pin voltages are taken below GND, they will be 1111 1111 1111. clamped by internal diodes. This product can handle input currents of Note 8: Guaranteed by design, not subject to test. >100mA below GND without latchup. These pins are not clamped to VDD. Note 9: Recommended operating conditions. WUTYPICAL PERFOR A CE CHARACTERISTICS8192 Point FFT, fIN = 15.2MHz,INLDNL–1dB, PGA = 0 2.5 1.0 0 2.0 0.8 –10 –20 1.5 0.6 –30 1.0 0.4 –40 0.5 0.2 –50 0 0 –60 –0.5 –0.2 –70 ERROR (LSB) ERROR (LSB) –80 –1.0 –0.4 AMPLITUDE (dBFS) –90 –1.5 –0.6 –100 –2.0 –0.8 –110 –2.5 –1.0 –120 0 4096 8192 12288 16384 0 4096 8192 12288 16384 0 5 10 15 20 25 30 35 40 OUTPUT CODE OUTPUT CODE FREQUENCY (MHz) 1750 G01 1750 G02 1750 G03 8192 Point FFT, fIN = 15.2MHz,8192 Point FFT, fIN = 15.2MHz,8192 Point FFT, fIN = 30.2MHz,–10dB, PGA = 0–20dB, PGA = 0–1dB, PGA = 0 0 0 0 –10 –10 –10 –20 –20 –20 –30 –30 –30 –40 –40 –40 –50 –50 –50 –60 –60 –60 –70 –70 –70 AMPLITUDE (dBFS) –80 AMPLITUDE (dBFS) –80 AMPLITUDE (dBFS) –80 –90 –90 –90 –100 –100 –100 –110 –110 –110 –120 –120 –120 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 1750 G04 1750 G05 1750 G06 1750f 5