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MAX1237KEUA Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MAX1237KEUA Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 22 page 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs _______________________________________________________________________________________ 7 200 300 250 350 400 450 500 550 600 650 700 750 800 0 20 30 40 60 80 100 AVERAGE SUPPLY CURRENT vs. CONVERSION RATE (EXTERNAL CLOCK) CONVERSION RATE (ksps) 010 50 70 90 A B A) INTERNAL REFERENCE ALWAYS ON B) EXTERNAL REFERENCE MAX1238 0.9990 0.9994 0.9992 0.9998 0.9996 1.0002 1.0000 1.0004 1.0008 1.0006 1.0010 -40 -10 5 -25 20 35 50 65 80 INTERNAL REFERENCE VOLTAGE vs. TEMPERATURE TEMPERATURE ( °C) NORMALIZED TO VALUE AT +25 °C MAX1238 MAX1239 0.99990 0.99994 0.99992 0.99998 0.99996 1.00002 1.00000 1.00004 1.00008 1.00006 1.00010 2.7 3.3 3.6 3.9 3.0 4.2 4.5 4.8 5.1 5.4 NORMALIZED REFERENCE VOLTAGE vs. SUPPLY VOLTAGE VDD (V) MAX1236/MAX1238 NORMALIZED TO REFERENCE VALUE AT VDD = 5V MAX1237/MAX1239 NORMALIZED TO REFERENCE VALUE AT VDD = 3.3V Typical Operating Characteristics (continued) (VDD = 3.3V (MAX1237/MAX1239), VDD = 5V (MAX1236/MAX1238), fSCL = 1.7MHz, (50% duty cycle), fSAMPLE = 94.4ksps, single- ended, unipolar, TA = +25°C, unless otherwise noted.) OFFSET ERROR vs. TEMPERATURE TEMPERATURE ( °C) 80 65 35 50 -10 5 20 -25 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0 -1.0 -40 OFFSET ERROR vs. SUPPLY VOLTAGE VDD (V) 5.2 5.5 4.7 4.2 3.7 3.2 -1.6 -1.2 -0.8 -0.4 0 0.4 0.8 1.2 1.6 2.0 -2.0 2.7 GAIN ERROR vs. TEMPERATURE TEMPERATURE ( °C) 80 65 35 50 -10 5 20 -25 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 -40 GAIN ERROR vs. SUPPLY VOLTAGE VDD (V) 5.2 5.5 4.7 4.2 3.7 3.2 -1.6 -1.2 -0.8 -0.4 0 0.4 0.8 1.2 1.6 2.0 -2.0 2.7 |
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