Datenblatt-Suchmaschine für elektronische Bauteile |
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DAC5687IPZPR Datenblatt(PDF) 6 Page - Texas Instruments |
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DAC5687IPZPR Datenblatt(HTML) 6 Page - Texas Instruments |
6 / 79 page www.ti.com ELECTRICAL CHARACTERISTICS (DC SPECIFICATIONS) DAC5687 SLWS164E – FEBRUARY 2005 – REVISED SEPTEMBER 2006 THERMAL CHARACTERISTICS (continued) over operating free-air temperature range (unless otherwise noted) Thermal Conductivity 100 HTQFP UNIT θ JC Theta junction-to-case 0.12 °C/W over recommended operating free-air temperature range, AVDD = 3.3 V, CLKVDD = 3.3 V, PLLVDD = 3.3 V, IOVDD = 3.3 V, DVDD = 1.8 V, IOUTFS = 19.2 mA (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT RESOLUTION 16 Bits DC ACCURACY(1) 1 LSB = IOUTFS/2 16 INL Integral nonlinearity ±4 LSB TMIN to TMAX DNL Differential nonlinearity ±4 LSB ANALOG OUTPUT Coarse gain linearity ±0.04 LSB Worst-case error from ideal linearity Fine gain linearity ±3 LSB Offset error Mid code offset 0.01 %FSR Without internal reference 1 %FSR Gain error With internal reference 0.7 %FSR With internal reference, dual DAC, and SSB Gain mismatch –2 2 %FSR mode Minimum full-scale output current(2) 2 mA Maximum full-scale output current(2) 20 mA AVDD – AVDD Output compliance range(3) IOUTFS = 20 mA V 0.5 V + 0.5 V Output resistance 300 k Ω Output capacitance 5 pF REFERENCE OUTPUT Reference voltage 1.14 1.2 1.26 V Reference output current(4) 100 nA REFERENCE INPUT VEXTIO Input voltage range 0.1 1.25 V Input resistance 1 M Ω Small signal bandwidth 1.4 MHz Input capacitance 100 pF TEMPERATURE COEFFICIENTS ppm of Offset drift ±1 FSR/ °C Without internal reference ±15 ppm of Gain drift FSR/ °C With internal reference ±30 ppm of Reference voltage drift ±8 FSR/ °C (1) Measured differential across IOUTA1 and IOUTA2 or IOUTB1 and IOUTB2 with 25 Ω each to AVDD. (2) Nominal full-scale current, IOUTFS , equals 32× the IBIAS current. (3) The upper limit of the output compliance is determined by the CMOS process. Exceeding this limit may result in transistor breakdown, resulting in reduced reliability of the DAC5687 device. The lower limit of the output compliance is determined by the load resistors and full-scale output current. Exceeding the limits adversely affects distortion performance and integral nonlinearity. (4) Use an external buffer amplifier with high impedance input to drive any external load. 6 Submit Documentation Feedback Copyright © 2005–2006, Texas Instruments Incorporated Product Folder Link(s): DAC5687 |
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