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THS4631 Datasheet(PDF) 3 Page - Texas Instruments |
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THS4631 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 24 page  www.ti.com ELECTRICAL CHARACTERISTICS DAC7822 SBAS374A – JUNE 2006 – REVISED JULY 2007 VDD = +2.5V to +5.5V; IOUT1 = Virtual GND; IOUT2 = 0V; VREF = 10V; TA = full operating temperature. All specifications –40°C to +125 °C, unless otherwise noted. DAC7822 PARAMETER CONDITIONS MIN TYP MAX UNITS STATIC PERFORMANCE Resolution 12 Bits Relative accuracy ±1 LSB Differential nonlinearity ±1 LSB Output leakage current Data = 000h, TA = +25°C ±1 nA Output leakage current Data = 000h, TA = TMAX ±15 nA Full-scale gain error All ones loaded to DAC register ±10 ±25 mV Full-scale tempco(1) ±5 ppm/ °C Bipolar zero-code error Circuit configuration as shown in Figure 41 ±25 mV Output capacitance DAC latches leaded with all 1s 25 30 pF REFERENCE INPUT VREF range –15 15 V VREFA, VREFB, Input resistance 8 10 12 k Ω R1, RFB resistance 17 20 25 k Ω R2, R3 resistance 17 20 25 k Ω VREFA to VREFB Input Mismatch 1.6 2.5 % R2 to R3 Mismatch 0.06 0.18 % LOGIC INPUTS AND OUTPUT(1) VDD = +2.5V 0.6 V Input low voltage VIL VDD = +5V 0.8 V VDD = +2.5V 2.1 V Input high voltage VIH VDD = +5V 2.4 V Input leakage current IIL 1 µA Input capacitance CIL 10 pF POWER REQUIREMENTS VDD 2.5 5.5 V IDD (normal operation) Logic inputs = 0V 5 µA VDD = +4.5V to +5.5V VIH = VDD and VIL = GND 0.8 5 µA VDD = +2.5V to +3.6V VIH = VDD and VIL = GND 0.4 2.5 µA AC CHARACTERISTICS(1) Output voltage settling time 0.2 µs Reference multiplying BW VREF = 7VPP, Data = FFFh 10 MHz VREF = 0V to 10V, DAC glitch impulse 10 nV-s Data = 7FFh to 800h to 7FFh Feedthrough error VOUT/VREF Data = 000h, VREF = 100kHz –70 dB Digital feedthrough 2 nV-s Total harmonic distortion –105 dB Output spot noise voltage 25 nV/ √Hz (1) Specified by design and characterization; not production tested. 3 Submit Documentation Feedback |
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