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LCZP Arkusz danych(PDF) 9 Page - Linear Technology |
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LCZP Arkusz danych(HTML) 9 Page - Linear Technology |
9 / 20 page LTC2641/LTC2642 9 26412f PIN FUNCTIONS LTC2641 REF (Pin 1): Reference Voltage Input. Apply an external reference at REF between 2V and VDD. ⎯C⎯S (Pin 2): Serial Interface Chip Select/Load Input. When ⎯C⎯S is low, SCLK is enabled for shifting in data on DIN. When ⎯C⎯S is taken high, SCLK is disabled, the 16-bit input word is latched and the DAC is updated. SCLK (Pin 3): Serial Interface Clock Input. CMOS and TTL compatible. DIN (Pin 4): Serial Interface Data Input. Data is applied to DIN for transfer to the device at the rising edge of SCLK. ⎯C⎯L⎯R (Pin 5): Asynchronous Clear Input. A logic low clears the DAC to code 0. VOUT (Pin 6): DAC Output Voltage. The output range is 0V to VREF. VDD (Pin 7): Supply Voltage. Set between 2.7V and 5.5V. GND (Pin 8): Circuit Ground. Exposed Pad (DFN Pin 9): Circuit Ground. Must be sol- dered to PCB ground. LTC2642 REF (Pin 1): Reference Voltage Input. Apply an external reference at REF between 2V and VDD. ⎯C⎯S (Pin 2): Serial Interface Chip Select/Load Input. When ⎯C⎯S is low, SCLK is enabled for shifting in data on DIN. When ⎯C⎯S is taken high, SCLK is disabled, the 16-bit input word is latched and the DAC is updated SCLK (Pin 3): Serial Interface Clock Input. CMOS and TTL compatible. DIN (Pin 4): Serial Interface Data Input. Data is applied to DIN for transfer to the device at the rising edge of SCLK. ⎯C⎯L⎯R (Pin 5): Asynchronous Clear Input. A logic low clears the DAC to midscale. VOUT (Pin 6): DAC Output Voltage. The output range is 0V to VREF. INV (Pin 7): Center Tap of Internal Scaling Resistors. Connect to an external amplifier’s inverting input in bipolar mode. RFB (Pin 8): Feedback Resistor. Connect to an external amplifier’s output in bipolar mode. The bipolar output range is –VREF to VREF. VDD (Pin 9): Supply Voltage. Set between 2.7V and 5.5V. GND (Pin 10): Circuit Ground. Exposed Pad (DFN Pin 11): Circuit Ground. Must be soldered to PCB ground. |
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