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MAX1146 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1146 Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 25 page Multichannel, True-Differential, Serial, 14-Bit ADCs 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VDD = 5V (MAX1146/MAX1148), VDD = 3.3V (MAX1147/MAX1149), SHDN = VDD, VCOM = 0, fSCLK = 2.1MHz, external clock (50% duty cycle), 18 clocks/conversion (116ksps), VREFADJ = VDD, CREF = 2.2µF, external +4.096V reference at REF (MAX1146/ MAX1148), external 2.500V reference at REF (MAX1147/MAX1149), TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) 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 +6.0V AGND to DGND.....................................................-0.3V to +0.3V CH0–CH7, COM to AGND..........................-0.3V to (VDD + 0.3V) REF, REFADJ to AGND ..............................-0.3V to (VDD + 0.3V) Digital Inputs to DGND...............................-0.3V to (VDD + 0.3V) Digital Outputs to DGND ............................-0.3V to (VDD + 0.3V) Digital Output Sink Current .................................................25mA Continuous Power Dissipation (TA = +70°C) 20 TSSOP (derate 10.9mW/°C above +70°C) .............879mW Operating Temperature Ranges MAX114_ BC_ _ ..................................................0°C to +70°C MAX114_ BE_ _ ...............................................-40°C to +85°C Storage Temperature Range .............................-60°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC ACCURACY (Note 1) Resolution 14 Bits Relative Accuracy (Note 2) INL ±0.7 ±2 LSB Differential Nonlinearity DNL No missing codes over temperature -1.0 ±0.5 +1.5 LSB Offset Error ±10 LSB Offset Temperature Coefficient 0.3 ppm/°C Gain Error (Note 3) ±20 LSB Gain Temperature Coefficient ±0.8 ppm/°C Channel-to-Channel Offset Matching ±1 LSB Channel-to-Channel Gain Matching ±1 LSB DYNAMIC SPECIFICATIONS (1kHz sine-wave input, 2.5VP-P, full-scale analog input, 116ksps, 2.1MHz external clock) Signal-to-Noise Plus Distortion Ratio SINAD 77 81 dB Total Harmonic Distortion THD Up to the 5th harmonic -96 -88 dB Spurious-Free Dynamic Range SFDR 84 98 dB Channel-to-Channel Crosstalk (Note 4) -85 dB Small-Signal Bandwidth SSBW -3dB point 3.0 MHz Full-Power Bandwidth FPBW SINAD > 68dB 2.0 MHz CONVERSION RATE External clock, 2.1MHz 15 SCLK cycles 7.2 Conversion Time (Note 5) tCONV Internal clock 6 8 µs |
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Similar Description - MAX1146 |
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