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DAC707SH Scheda tecnica(PDF) 3 Page - Texas Instruments |
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DAC707SH Scheda tecnica(HTML) 3 Page - Texas Instruments |
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3 / 27 page  DAC8531 3 SBAS192B www.ti.com LOGIC INPUTS (2) Input Current ±1 µA VINL, Input LOW Voltage VDD = +5V 0.8 V VINL, Input LOW Voltage VDD = +3V 0.6 V VINH, Input HIGH Voltage VDD = +5V 2.4 V VINH, Input HIGH Voltage VDD = +3V 2.1 V Pin Capacitance 3pF POWER REQUIREMENTS VDD 2.7 5.5 V IDD (normal mode) DAC Active and Excluding Load Current VDD = +3.6V to +5.5V VIH = VDD and VIL = GND 250 400 µA VDD = +2.7V to +3.6V VIH = VDD and VIL = GND 240 390 µA IDD (all power-down modes) VDD = +3.6V to +5.5V VIH = VDD and VIL = GND 0.2 1 µA VDD = +2.7V to +3.6V VIH = VDD and VIL = GND 0.05 1 µA POWER EFFICIENCY I OUT/IDD I LOAD = 2mA, VDD = +5V 89 % TEMPERATURE RANGE Specified Performance –40 +105 °C PARAMETER CONDITIONS MIN TYP MAX UNITS ELECTRICAL CHARACTERISTICS (Cont.) V DD = +2.7V to +5.5V. –40°C to +105°C, unless otherwise specified. DAC8531E PIN NAME DESCRIPTION 1VDD Power-Supply Input, +2.7V to +5.5V. 2VREF Reference Voltage Input 3VFB Feedback connection for the output amplifier. 4VOUT Analog output voltage from DAC. The output ampli- fier has rail-to-rail operation. 5 SYNC Level-triggered control input (active LOW). This is the frame sychronization signal for the input data. When SYNC goes LOW, it enables the input shift register and data is transferred in on the falling edges of the following clocks. The DAC is updated following the 24th clock cycle unless SYNC is taken HIGH before this edge, in which case the rising edge of SYNC acts as an interrupt and the write sequence is ignored by the DAC8531. 6 SCLK Serial Clock Input. Data can be transferred at rates up to 30MHz. 7DIN Serial Data Input. Data is clocked into the 24-bit input shift register on the falling edge of the serial clock input. 8 GND Ground reference point for all circuitry on the part. PIN DESCRIPTION PIN CONFIGURATIONS Top View V DD V REF V FB V OUT GND D IN SCLK SYNC 1 2 3 4 8 7 6 5 DAC8531 MSOP-8 1 2 3 4 8 7 6 5 GND D IN SCLK SYNC V DD V REF V FB V OUT DAC8531 SON-8 |
Codice articolo simile - DAC707SH |
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Descrizione simile - DAC707SH |
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