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DAC3484IRKDT 数据表(PDF) 7 Page - Texas Instruments |
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DAC3484IRKDT 数据表(HTML) 7 Page - Texas Instruments |
7 / 82 page DAC3484 www.ti.com SLAS749A – MARCH 2011 – REVISED JULY 2011 ELECTRICAL CHARACTERISTICS – DC SPECIFICATIONS (1) over recommended operating free-air temperature range, nominal supplies, IOUTFS = 20mA (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Resolution 16 Bits DC ACCURACY DNL Differential nonlinearity ±2 LSB 1 LSB = IOUTFS/2 16 INL Integral nonlinearity ±4 LSB ANALOG OUTPUT Coarse gain linearity ±0.04 LSB Offset error Mid code offset ±0.001 %FSR With external reference ±2 %FSR Gain error With internal reference ±2 %FSR Gain mismatch With internal reference ±2 %FSR Full scale output current 10 20 30 mA Output compliance range –0.5 0.6 V Output resistance 300 k Ω Output capacitance 5 pF REFERENCE OUTPUT VREF Reference output voltage 1.2 V Reference output current(2) 100 nA REFERENCE INPUT VEXTIO Input voltage range 0.6 1.2 1.25 V External Reference Mode Input resistance 1 M Ω Small signal bandwidth 472 kHz Input capacitance 100 pF TEMPERATURE COEFFICIENTS Offset drift ±1 ppm/ °C with external reference ±15 ppm/ °C Gain drift with internal reference ±30 ppm/ °C Reference voltage drift ±8 ppm/ °C POWER SUPPLY(3) AVDD, IOVDD, PLLAVDD All Conditions 3.14 3.3 3.46 V DIGVDD All Conditions 1.14 1.2 1.32 V FDAC Sampling Rate ≤ 1.25GSPS, PLL OFF 1.14 1.2 1.32 FDAC Sampling Rate ≤ 1GSPS, PLL ON CLKVDD, DACVDD V FDAC Sampling Rate > 1GSPS, PLL ON 1.25 1.29 1.32 PSRR Power Supply Rejection Ratio DC tested ±0.2 %FSR/V POWER CONSUMPTION I(AVDD) Analog supply current(4) 123 135 mA MODE 1 I(DIGVDD) Digital supply current 595 650 mA fDAC = 1.25GSPS, 4x interpolation, Mixer on, I(DACVDD) DAC supply current 35 50 mA QMC on, invsinc on, PLL enabled, 20mA FS I(CLKVDD) Clock supply current 90 95 mA output, IF = 200MHz P Power dissipation 1270 1320 mW (1) Measured differentially across IOUTP/N with 25 Ω each to GND. (2) Use an external buffer amplifier with high impedance input to drive any external load. (3) To ensure power supply accuracy and to account for power supply filter network loss at operating conditions, the use of the ATEST function in register config27 to check the internal power supply nodes is recommended. (4) Includes AVDD, PLLAVDD, and IOVDD Copyright © 2011, Texas Instruments Incorporated 7 |
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