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MAX1248BMJE Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1248BMJE Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 24 page +2.7V to +5.25V, Low-Power, 4-Channel, Serial 10-Bit ADCs in QSOP-16 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VDD = +2.7V to +5.25V; COM = 0V; fSCLK = 2.0MHz; external clock (50% duty cycle); 15 clocks/conversion cycle (133ksps); MAX1248—4.7µF capacitor at VREF pin; MAX1249—external reference, VREF = 2.500V applied to VREF pin; TA = TMIN to TMAX, unless otherwise noted.) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. VDD to AGND, DGND .............................................. -0.3V to +6V AGND to DGND.................................................... -0.3V to +0.3V CH0–CH3, COM to AGND, DGND ............ -0.3V to (VDD + 0.3V) VREF to AGND........................................... -0.3V to (VDD + 0.3V) Digital Inputs to DGND............................................ -0.3V to +6V Digital Outputs to DGND ........................... -0.3V to (VDD + 0.3V) Digital Output Sink Current .................................................25mA Continuous Power Dissipation (TA = +70°C) Plastic DIP (derate 10.53mW/°C above +70°C) ......... 842mW QSOP (derate 8.30mW/°C above +70°C) ................... 667mW CERDIP (derate 10.00mW/°C above +70°C) .............. 800mW Operating Temperature Ranges MAX1248_C_E/MAX1249_C_E .......................... 0°C to +70°C MAX1248_E_E/MAX1249_E_E........................ -40°C to +85°C MAX1248_MJE/MAX1249_MJE .................... -55°C to +125°C Storage Temperature Range ............................ -60°C to +150°C Lead Temperature (soldering, 10sec) ............................ +300°C 6 µs 35 65 tCONV Conversion Time (Note 5) 5.5 7.5 MHz 1.0 Full-Power Bandwidth MHz 2.25 Small-Signal Bandwidth dB -75 Channel-to-Channel Crosstalk dB 70 SFDR Spurious-Free Dynamic Range dB -70 THD Total Harmonic Distortion dB 66 SINAD Signal-to-Noise + Distortion Ratio LSB ±0.05 Channel-to-Channel Offset Matching ppm/°C ±0.25 Gain Temperature Coefficient ±0.5 Bits 10 Resolution ±1 Offset Error LSB ±1.0 INL Relative Accuracy (Note 2) LSB ±1 DNL ±1 LSB ±2 UNITS MIN TYP MAX SYMBOL PARAMETER External clock = 2MHz, 12 clocks/conversion Internal clock, SHDN = VDD Internal clock, SHDN = FLOAT MAX124_A -3dB rolloff 65kHz, 2.500Vp-p (Note 4) Up to the 5th harmonic MAX124_A MAX124_B No missing codes over temperature MAX124_A MAX124_B CONDITIONS Differential Nonlinearity ns 30 Aperture Delay MHz 1.8 SHDN = FLOAT ps <50 Aperture Jitter MHz 0.1 2.0 µs 1.5 tACQ Track/Hold Acquisition Time 0.225 Internal Clock Frequency SHDN = VDD 0 2.0 External Clock Frequency Data transfer only LSB Gain Error (Note 3) ±2 MAX124_B DC ACCURACY (Note 1) DYNAMIC SPECIFICATIONS (10kHz sine-wave input, 0V to 2.500Vp-p, 133ksps, 2.0MHz external clock, bipolar input mode) CONVERSION RATE |
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