Datenblatt-Suchmaschine für elektronische Bauteile |
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DAC8806 Datenblatt(PDF) 4 Page - Texas Instruments |
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DAC8806 Datenblatt(HTML) 4 Page - Texas Instruments |
4 / 20 page www.ti.com PIN ASSIGNMENTS REF R COM R1 R OFS R FB I OUT AGND LDAC WR D13 D12 D11 D10 D9 RST NC NC D0 D1 V DD DGND D2 D3 D4 D5 D6 D7 D8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 DAC8806 DAC8806 SBAS385A – APRIL 2006 – REVISED JUNE 2006 ELECTRICAL CHARACTERISTICS (continued) All specifications at –40 °C to +85°C, V DD = +2.7V to +5.5V, IOUT = virtual GND, GND = 0V, VREF = 10V, and TA = full operating temperature, unless otherwise noted. DAC8806 PARAMETER CONDITIONS MIN TYP MAX UNITS POWER REQUIREMENTS VDD 2.7 5.5 V IDD (normal operation) Logic inputs = 0V 5 µA VDD = +4.5V to +5.5V VIH = VDD and VIL = GND 3 5 µA VDD = +2.7V to +3.6V VIH = VDD and VIL = GND 1 2.5 µA AC CHARACTERISTICS(2) Output current settling time 0.5 µs Reference multiplying BW VREF = 5VPP, Data = 3FFFh 8 MHz VREF = 0V to 10V, DAC glitch impulse 2 nV–s Data = 1FFFh to 2000h to 1FFFh Feedthrough error VOUT/VREF Data = 0000h, VREF = 10kHz; ±10VPP –70 dB LDAC = logic low, VREF = –10V to +10V Digital feedthrough 2 nV–s Any code change Total harmonic distortion VREF = 6VRMS, Data = 3FFF, f = 1kHz –105 dB Output spot noise voltage 10 nV/ √Hz (2) Specified by design and characterization; not production tested. TERMINAL FUNCTIONS PIN # NAME DESCRIPTION 1 REF Reference input and 4-quadrant Resistor (R2). Center tap of two 4-quadrant resistors 2 RCOM (R1 and R2). 3 R1 4-quadrant resistor (R1). 4 ROFS Bipolar offset resistor 5 RFB Internal matching feedback resistor 6 IOUT DAC current output 7 AGND Analog ground Digital input load DAC control. When LDAC is high, 8 LDAC data is loaded from input register into a DAC register, updating the DAC output. Write control digital input. Active low. When WR is 9 WR taken to logic low, data is loaded from the digital input pins (D0–D13) into a14-bit input register. 10–21 D13–D2 Digital input data bits. D13 is MSB. 22 DGND Digital ground 23 VDD Positive power supply 24, 25 D1, D0 Digital Input data bits. D0 is LSB. 26, 27 NC No connection Reset. Active low. When RST is taken to logic low, 28 RST the DAC output and all internal registers are set to zero code for the DAC8806. 4 Submit Documentation Feedback |
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Ähnliche Beschreibung - DAC8806 |
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