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DAC8775IRWFT Scheda tecnica(PDF) 10 Page - Texas Instruments |
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DAC8775IRWFT Scheda tecnica(HTML) 10 Page - Texas Instruments |
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10 / 81 page  10 DAC8775 SLVSBY7 – FEBRUARY 2017 www.ti.com Product Folder Links: DAC8775 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Electrical Characteristics (continued) AVDD/PVDD_x/VPOS_IN_x = +15 V, VNEG_IN_x = -15 V, VSENSEN_x = PBKG = PVSS_x = 0 V, External DVDD = 2.7 V. VOUT : RL = 1 kΩ, CL = 200 pF, IOUT : RL = 250 Ω; all specifications -40℃ to +125℃, unless otherwise noted. REFIN= +5 V external;, Buck-Boost Converter disabled unless otherwise stated PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Footroom Bipolar, ranges only, VNEG_IN_x with respect to VOUT_x, 0x0000h into DAC 3 V Unipolar ranges only, VNEG_IN_x with respect to VOUT_x, 0x0000h into DAC 5 V Short-Circuit Current SCLIM[1:0] = "00" (see register map) 17 23 mA SCLIM[1:0] = "01" (see register map) 8 11 mA SCLIM[1:0] = "10" (see register map) 22 28 mA SCLIM[1:0] = "11" (see register map) 26 34 mA RL Load 1 kΩ CL Capacitive Load Stability RL = Open 20 nF RL = 1 kΩ 20 nF RL = 1 kΩ with External compensation capacitor (150 pF) connected 1 µF ZO DC Output Impedance Voltage output enabled, VOUT = Mid Scale, UP10V range 0.01 Ω Voltage output disabled (POC = '1') 50 MΩ Voltage output disabled (POC = '0') 30 kΩ ILEAK Output Leakage (VOUT_x Pin) Voltage output disabled (POC = '1') 1 nA DC-PSRR DC Power Supply Rejection Ratio No output load 10 µV/V VSENSEP Impedance VOUT enabled Mid-Scale UP10 240 kΩ VSENSEN Impedance VOUT enabled Mid-Scale UP10 120 kΩ EXTERNAL REFERENCE INPUT IREF External Reference Current VOUT = Full scale, BP12V range, per channel 0.35 mA Reference Input Capacitance 100 pF INTERNAL REFERENCE OUTPUT VREF Reference Output TA = 25°C 4.99 5.01 V VREF-TC Reference TC TA = -40℃ to +125℃ -13 13 ppm/°C TA = -25℃ to +125℃ -10 10 ppm/°C TUE DAC Voltage Output Total Unadjusted Error(1) -40°C to +125°C, VOUT_x unloaded, Internal reference enabled 0.2 %FSR DAC Current Output Total Unadjusted Error(1) -40°C to +125°C, Internal reference enabled 0.2 %FSR -40°C to +125°C, Internal reference enabled, 4 mA to 20 mA range 0.5 %FSR Output Noise (0.1 Hz to 10 Hz) TA = 25°C 13 µV p-p Noise Spectral Density At 10 kHz, At 25°C 200 nV/sqrtHz CL Capacitive Load 600 nF IL Load Current ±5 mA Short Circuit Current Ref-Out shorted to PBKG 20 mA Load Regulation Sourcing and Sinking, TA = +25°C 5 µV/mA Line Regulation TA = +25°C 2 uV/V BUCK BOOST CONVERTER RON Switch On Resistanvce TA = +25°C 3 Ω ILEAK Switch Leakage Current TA = +25°C 20 nA L Inductor Between LP_x and LN_x 100 µH |
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