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AD5557 Datasheet(PDF) 3 Page - Texas Instruments |
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AD5557 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 25 page www.ti.com ELECTRICAL CHARACTERISTICS DAC8805 SBAS391A – DECEMBER 2006 – REVISED MAY 2007 All specifications at TA = –40°C to +125°C, VDD = +2.7V to +5.5V, IOUT = virtual GND, GND = 0V, and VREF = 10V, unless otherwise noted. DAC8805 PARAMETER CONDITIONS MIN TYP MAX UNITS STATIC PERFORMANCE Resolution 14 Bits Relative accuracy INL ±0.5 ±1 LSB Differential nonlinearity DNL ±0.5 ±1 LSB Output leakage current Data = 0000h, TA = +25°C 10 nA Output leakage current Data = 0000h, Full temperature range 20 nA Unipolar, data = 3FFFh ±1 ±4 mV Full-scale gain error Bipolar, data = 3FFFh ±1 ±4 mV Full-scale temperature coefficient ±1 ±2 ppm/ °C TA = +25°C ±1 ±3 mV Bipolar zero error Full temperature range ±1 ±3 mV Power-supply rejection ratio PSRR VDD = 5V ±10% ±0.1 ±0.5 LSB/V OUTPUT CHARACTERISTICS(1) Output current 2 mA Output capacitance Code dependent 50 pF REFERENCE INPUT Reference voltage range VREF –18 18 V Input resistance (unipolar) RREF 4 5 6 k Ω Input capacitance 5 pF R1, R2 4 5 6 k Ω Feedback and offset resistance ROFS, RFB 8 10 12 k Ω LOGIC INPUTS AND OUTPUT(1) VIL VDD = +2.7V 0.6 V Input low voltage VIL VDD = +5V 0.8 V VIH VDD = +2.7V 2.1 V Input high voltage VIH VDD = +5V 2.4 V Input leakage current IIL 0.001 1 µA Input capacitance CIL 8 pF POWER REQUIREMENTS Supply voltage VDD 2.7 5.5 V Supply current IDD Normal operation, logic inputs = 0V 3 6 µA VDD = +4.5V to +5.5V VIH = VDD and VIL = GND 3 6 µA VDD = +2.7V to +3.6V VIH = VDD and VIL = GND 1 3 µA AC CHARACTERISTICS(1)(2) To 0.1% of full-scale, Output current settling time tS 0.3 µs Data = 0000h to 3FFFh to 0000h To 0.006% of full-scale, tS 0.5 µs Data = 0000h to 3FFFh to 0000h Reference multiplying BW BW – 3dB VREF = 5VPP, Data = 3FFFh, 2-quadrant mode 10 MHz VREF = 0V to 10V, DAC glitch impulse 5 nV–s Data = 1FFFh to 2000h to 1FFFh Data = 0000h, VREF = 100kHz, ±10VPP, Feedthrough error VOUT/VREF –70 dB 2-quadrant mode Crosstalk error VOUTA/VREFB Data = 0000h, VREFB = 100mVRMS, f = 100kHz –100 dB LDAC = Logic low, VREF = –10V to + 10V Digital feedthrough 1 nV–s Any code change Total harmonic distortion THD VREF = 6VRMS, Data = 3FFFh, f = 1kHz –105 dB Output noise density eN f = 1kHz, BW = 1Hz, 2-quadrant mode 12 nV/ √Hz (1) Specified by design and characterization; not production tested. (2) All ac characteristic tests are performed in a closed-loop system using a THS4011 I-to-V converter amplifier. 3 Submit Documentation Feedback |
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