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MAX1231BEEG-T Datasheet(PDF) 8 Page - Maxim Integrated Products |
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MAX1231BEEG-T Datasheet(HTML) 8 Page - Maxim Integrated Products |
8 / 22 page 12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference 8 _______________________________________________________________________________________ Pin Description MAX1231 TQFN-EP MAX1231 QSOP MAX1229 MAX1227 NAME FUNCTION 2–12, 26, 27, 28, 1–14 — — AIN0–13 Analog Inputs — — 1–10 — AIN0–9 Analog Inputs — — — 1–6 AIN0–5 Analog Inputs 13 15 — — REF-/AIN14 Negative Input for External Differential Reference/Analog Input 14. See Table 3 for details on programming the setup register. — — 11 — REF-/AIN10 Negative Input for External Differential Reference/Analog Input 10. See Table 3 for details on programming the setup register. — — — 7 REF-/AIN6 Negative Input for External Differential Reference/Analog Input 6. See Table 3 for details on programming the setup register. 14 16 — — CNVST/ AIN15 Active-Low Conversion Start Input/Analog Input 15. See Table 3 for details on programming the setup register. — — 12 — CNVST/ AIN11 Active-Low Conversion Start Input/Analog Input 11. See Table 3 for details on programming the setup register. — — — 8 CNVST/ AIN7 Active-Low Conversion Start Input/Analog Input 7. See Table 3 for details on programming the setup register. 15 17 13 9 REF+ Positive Reference Input. Bypass to GND with a 0.1μF capacitor. 16 18 14 10 GND Ground 18 19 15 11 VDD Power Input. Bypass to GND with a 0.1μF capacitor. 20 20 16 12 SCLK Serial Clock Input. Clocks data in and out of the serial interface. (Duty cycle must be 40% to 60%.) See Table 3 for details on programming the clock mode. 21 21 17 13 CS Active-Low Chip Select Input. When CS is low, the serial interface is enabled. When CS is high, DOUT is high impedance. 22 22 18 14 DIN Serial Data Input. DIN data is latched into the serial interface on the rising edge of SCLK. 23 23 19 15 DOUT Serial Data Output. Data is clocked out on the falling edge of SCLK. High impedance when CS is connected to VDD. 24 24 20 16 EOC End of Conversion Output. Data is valid after EOC pulls low. 1, 17, 19, 25 — — — N.C. No Connection. Not internally connected. — — — — EP Exposed Pad (TQFN Only). Connect to GND. |
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