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LTC1391IGN Datasheet(PDF) 5 Page - Linear Technology |
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LTC1391IGN Datasheet(HTML) 5 Page - Linear Technology |
5 / 12 page 5 LTC1391 sn1391 1391fas PIN FUNCTIONS S0, S1, S2, S3, S4, S5, S6, S7 (Pins 1, 2, 3, 4, 5, 6, 7, 8): Analog Multiplexer Inputs. GND (Pin 9): Digital Ground. Connect to system ground. CLK (Pin 10): System Clock (TTL/CMOS Compatible). The clock synchronizes the channel selection bits and the serial data transfer from DIN to DOUT. CS (Pin 11): Channel Select Input (TTL/CMOS Compat- ible). A logic high on this input enables the LTC1391 to read in the channel selection bits and allows digital data transfer from DIN to DOUT. A logic low on this input puts DOUT into three-state and enables the selected channel for analog signal transmission. DIN (Pin 12): Digital Input (TTL/CMOS Compatible). Input for the channel selection bits. DOUT (Pin 13): Digital Output (TTL/CMOS Compatible). Output from the internal shift register. V – (Pin 14): Negative Supply. For ±5V dual supply appli- cations, |V– | should not exceed |V+|by more than 20% for proper channel selection. D (Pin 15): Analog Multiplexer Output. V + (Pin 16): Positive Supply. TYPICAL PERFOR A CE CHARACTERISTICS OUTPUT VOLTAGE (V) 2.0 2.5 3.0 4.0 3.5 4.5 5.0 1391 G04 0 –0.5 –1.0 –1.5 –2.0 –2.5 –3.0 –3.5 –4.0 V+ = 5V V – = –5V TA =25°C V+ = 2.7V V – = 0V TEMPERATURE ( °C) –40 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 60 1391 G05 –20 020 40 80 V+ = 5V V – = –5V IO = 1.6mA V+ = 2.7V V – = 0V IO = 400µA Driver Output High Voltage vs Output Current Driver Output High Voltage vs Temperature |
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