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ML2281 データシート(PDF) 3 Page - Micro Linear Corporation |
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ML2281 データシート(HTML) 3 Page - Micro Linear Corporation |
3 / 26 page ML2281, ML2282, ML2284, ML2288 3 NAME FUNCTION VCC Positive supply. 5V ± 10% DGND Digital ground. 0 volts. All digital inputs and outputs are referenced to this point. AGND Analog ground. The negative reference voltage for A/D converter. CH0-7, Analog inputs. Digitally selected to be single VIN+, VIN– ended (VIN) or; VIN+ or VIN– of a differential input. Analog range = GND - VIN - VCC. COM Common reference point for analog inputs. A/D conversion is performed on voltage difference between analog input and this common reference point if single-end conversion is specified. VREF Reference. The positive reference voltage for A/D converter. SE Shift enable. Input controls whether LSB first bit stream is shifted out on serial output DO. If SE = 1, MSB first is shifted out only. If SE = 0, an MSB first bit stream is shifted out, then a second bit stream with LSB first is shifted out after end of conversion. V+ Input to the Shunt Regulator. PIN DESCRIPTION NAME FUNCTION DO Data out. Digital output which contains result of A/D conversion. The serial data is clocked out on falling edges of CLK. SARS Successive approximation register status. Digital output which indicates that a conversion is in progress. When SARS goes to 1, the sampling window is closed and conversion begins. When SARS goes to 0, conversion is completed. When CS = 1, SARS is in high impedance state. CLK Clock. Digital input which clocks data in on DI on rising edges and out on DO on falling edges. Also used to generate clocks for A/D conversion. DI Data input. Digital input which contains serial data to program the MUX and channel assignments. CS Chip select. Selects the chip for multiplexer and channel assignment and A/D conversion. When CS = 1, all digital outputs are in high impedance state. When CS = 0, normal A./D conversion takes place. |
同様の部品番号 - ML2281 |
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同様の説明 - ML2281 |
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