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MAX1238KEEE Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1238KEEE Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 22 page 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VDD = 2.7V to 3.6V (MAX1237/MAX1239), VDD = 4.5V to 5.5V (MAX1236/MAX1238), VREF = 2.048V (MAX1237/MAX1239), VREF = 4.096V (MAX1236/MAX1238), CREF = 0.1µF, fSCL = 1.7MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C, see Tables 1–5 for programming notation.) 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 GND ..............................................................-0.3V to +6V AIN0–AIN11, REF to GND ............-0.3V to the lower of (VDD + 0.3V) and 6V SDA, SCL to GND.....................................................-0.3V to +6V Maximum Current Into Any Pin .........................................±50mA Continuous Power Dissipation (TA = +70°C) 8-Pin µMAX (derate 4.5mW/°C above +70°C) .............362mW 16-Pin QSOP (derate 8.3mW/°C above +70°C)........666.7mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°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 12 Bits Relative Accuracy INL (Note 2) ±1 LSB Differential Nonlinearity DNL No missing codes over temperature ±1 LSB Offset Error ±4 LSB Offset-Error Temperature Coefficient Relative to FSR 0.3 ppm/ °C Gain Error (Note 3) ±4 LSB Gain-Temperature Coefficient Relative to FSR 0.3 ppm/ °C Channel-to-Channel Offset Matching ±0.1 LSB Channel-to-Channel Gain Matching ±0.1 LSB DYNAMIC PERFORMANCE (fIN(SINE-WAVE) = 10kHz, VIN(P-P) = VREF, fSAMPLE = 94.4ksps) Signal-to-Noise Plus Distortion SINAD 70 dB Total Harmonic Distortion THD Up to the 5th harmonic -78 dB Spurious-Free Dynamic Range SFDR 78 dB Full-Power Bandwidth SINAD > 68dB 3 MHz Full-Linear Bandwidth -3dB point 5 MHz CONVERSION RATE Internal clock 7.5 Conversion Time (Note 4) tCONV External clock 10.6 µs |
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