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DAC8734SPFB Datasheet(PDF) 3 Page - Texas Instruments |
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DAC8734SPFB Datasheet(HTML) 3 Page - Texas Instruments |
3 / 41 page ELECTRICAL CHARACTERISTICS DAC8734 www.ti.com .................................................................................................................................................. SBAS465A – MAY 2009 – REVISED SEPTEMBER 2009 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. DAC8734 PARAMETER CONDITIONS MIN TYP MAX UNIT STATIC PERFORMANCE Bipolar Output Resolution 16 Bits Linearity error, INL ±1 LSB Differential linearity error, DNL ±1 LSB TA = +25°C, before user calibration ±4 LSB Bipolar zero error(1) TA = +25°C, after user calibration (2) ±0.125 LSB Bipolar zero error TC(2) ±0.5 ppm FSR/°C TA = +25°C, before user calibration ±4 LSB Gain error(1) TA = +25°C, after user calibration (2) ±1 LSB Gain error TC(2) ±0.5 ppm FSR/°C DC crosstalk(2)(3) Output unloaded ±0.2 LSB Unipolar Output Resolution 16 Bits Linearity error, INL AVDD = +21V, AVSS = –11V ±1 LSB Differential linearity error, DNL AVDD = +21V, AVSS = –11V ±1 LSB AVDD = +21V, AVSS = –11V, TA = +25°C, before user ±4 LSB calibration Zero error AVDD = +21V, AVSS = –11V, TA = +25°C, after user ±0.125 LSB calibration(2) Zero error TC(2) AVDD = +21V, AVSS = –11V ±0.2 ppm FSR/°C AVDD = +21V, AVSS = –11V, TA = +25°C, before user ±4 LSB calibration Gain error AVDD = +21V, AVSS = –11V, TA = +25°C, after user ±1 LSB calibration(2) Gain error TC(2) AVDD = +21V, AVSS = –11V ±0.5 ppm FSR/°C DC crosstalk(2)(3) AVDD = +21V, AVSS = –11V, output unloaded ±0.2 LSB ANALOG OUTPUT (VOUT-0 to VOUT-3) AVDD = +16.5V, AVSS = –16.5V, VREF = +7.5V, gain = 4 –15 +15 V Bipolar voltage output(4) VREF = +5V, gain = 4 –10 +10 V Unipolar voltage output(4) AVDD = +21V, AVSS = –11V, VREF = +5V, gain = 4 0 +20 V Operating for 500 hours at +25°C 2 ppm of FSR Output voltage drift vs time Operating for 1000 hours at +25°C 3 ppm of FSR Output impedance(2) ±3mA load current 0.005 Ω Short-circuit current(2)(5) 10 mA Load current(4) Output changes no more than ±1 LSB ±3 mA Capacitive load stability(2) 700 pF AVDD = +5V to +18V, AVSS = –5V to –18V, Power-supply rejection(2)(4) ±0.3 LSB DVDD = 5V ±10%, VREF = 2V (1) See the User Calibration for Zero-Code Error and Gain Error section for details. (2) Specified by design and characterization. (3) DC crosstalk is the dc change in the output of one channel as a result of a full-scale code change and subsequent output change on another channel. The DAC outputs are buffered by op amps that share common AVDD and AVSS power supplies. Multiple VDD and VSS terminals are provided to minimize dc crosstalk. (4) The analog output must not be greater than (AVDD – 1.0V) and must not be less than (AVSS + 1.0V). (5) When the output current is greater than the specification, the current is clamped at the specified maximum value. Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): DAC8734 |
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