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MAX1294AEEI Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MAX1294AEEI Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 20 page 420ksps, +5V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface _______________________________________________________________________________________ 7 Pin Description D0 10 10 INT 11 11 RD 12 12 WR 13 13 CLK 14 14 D4 6 6 D3 7 7 D2 8 8 D1 9 9 D5 5 5 D6 4 4 1 D7 3 3 D8 2 2 D9 1 Three-State Digital I/O Line (D0) INT goes low when the conversion is complete and output data is ready. Active-Low Read Select. If CS is low, a falling edge on RD will enable the read operation on the data bus. Active-Low Write Select. When CS is low in the internal acquisition mode, a rising edge on WR latches in configuration data and starts an acquisition plus a conver- sion cycle. When CS is low in external acquisition mode, the first rising edge on WR ends acquisition and starts a conversion. Clock Input. In external clock mode, drive CLK with a TTL/CMOS-compatible clock. In internal clock mode, connect this pin to either VDD or GND. Three-State Digital I/O Line (D4) Three-State Digital I/O Line (D3) Three-State Digital I/O Line (D2) Three-State Digital I/O Line (D1) Three-State Digital I/O Line (D5) Three-State Digital I/O Line (D6) Three-State Digital I/O Line (D7) Three-State Digital Output (D8) Three-State Digital Output (D9) GND 19 23 REFADJ 20 24 CH2 — 19 CH1 16 20 CH0 17 21 COM 18 22 CH3 — 18 CH4 — 17 CH5 — 16 CS 15 15 Analog and Digital Ground Bandgap Reference Output/Bandgap Reference Buffer Input. Bypass to GND with a 0.01µF capacitor. When using an external reference, connect REFADJ to VDD to disable the internal bandgap reference. Analog Input Channel 2 Analog Input Channel 1 Analog Input Channel 0 Ground Reference for Analog Inputs. Sets zero-code voltage in single-ended mode and must be stable to ±0.5LSB during conversion. Analog Input Channel 3 Analog Input Channel 4 Analog Input Channel 5 Active-Low Chip Select. When CS is high, digital outputs (INT, D11–D0) are high impedance. PIN MAX1296 MAX1294 NAME FUNCTION |
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