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DAC7716SPFBR Datasheet(PDF) 4 Page - Texas Instruments |
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DAC7716SPFBR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 41 page DAC7716 SBAS463A – AUGUST 2009 – REVISED SEPTEMBER 2009 ........................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS (continued) All specifications at TA = TMIN to TMAX, AVDD = +11V to +18V, AVSS = –11V to –18V, VREF = REF-A = REF-B = +5V, DVDD = +5V, IOVDD = +1.8V to DVDD, AGND = DGND = REFGND-A = REFGND-B = SGND-x = 0V, and DAC gain = 4, unless otherwise noted. DAC7716 PARAMETER CONDITIONS MIN TYP MAX UNIT AC PERFORMANCE(6) To 0.1% of FS, CL = 200pF, RL= 10kΩ, output changes 6 µs from –10V to +10V or +10V to –10V To 1 LSB, CL = 200pF, RL = 10kΩ, output changes from Settling time 7 µs –10V to +10V or +10V to –10V To 1 LSB, CL = 200pF, RL = 10kΩ, code changes 512 3 µs LSBs Slew rate(7) CL = 200pF, RL = 10kΩ 5 V/ µs Recovery time from Delay from clearing bit PD-x to when DAC returns to 50 µs power-down mode normal operation Digital-to-analog glitch(8) 1 LSB code change around midscale 8 nV-s Glitch impulse peak amplitude 1 LSB code change around midscale 15 mV Channel-to-channel isolation(9) –80 dB DAC-to-DAC crosstalk(10) 2 nV-s Digital crosstalk(11) 2 nV-s Digital feedthrough(12) 2 nV-s 0.1Hz to 10Hz, ±10V output range, gain = 4, midscale code 1 µV RMS Output noise 0.1Hz to 100kHz, ±10V output range, gain = 4, midscale 40 µV RMS code 1/f corner frequency 500 Hz TA = +25°C, at 10kHz, ±10V output range, gain = 4, 60 nV/ √Hz midscale code Output noise spectral density TA = +25°C, at 10kHz, 0V to +10V output range, gain = 2, 45 nV/ √Hz midscale code MONITOR PIN (VMON) (6) Output impedance 2200 Ω High-impedance leakage 100 nA current Continuous current limit 0.5 mA REFERENCE INPUT Reference input voltage range 1 8 V Reference input dc impedance 10 100 M Ω Reference input capacitance(6) 20 pF (6) Specified by design and characterization. (7) Slew rate is measured from 10% to 90% of the transition when the output changes from negative full-scale to positive full-scale. (8) Digital-to-analog glitch is defined as the amount of energy injected into the analog output at the major code transition. It is specified as the area of the glitch in nV-s. It is measured by toggling the DAC register data between 000h and FFFh in twos complement format. (9) Channel-to-channel isolation refers to the ratio of the signal amplitude at the output of one DAC channel to the amplitude of the sinusoidal signal on the reference input of another DAC channel. It is expressed in dB and measured at midscale. (10) DAC-to-DAC crosstalk is the glitch impulse that appears at the output of one DAC as a result of both the full-scale digital code and subsequent analog output change at another DAC. It is measured with LDAC tied low and expressed in nV-s. (11) Digital crosstalk is the glitch impulse transferred to the output of one converter as a result of a full-scale code change in the DAC input register of another converter. It is measured when the DAC output is not updated, and is expressed in nV-s. (12) Digital feedthrough is the glitch impulse injected to the output of a DAC as a result of a digital code change in the DAC input register of the same DAC. It is measured with the full-scale digital code change without updating the DAC output, and is expressed in nV-s. 4 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): DAC7716 |
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