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DAC1220E 데이터시트(PDF) 2 Page - Burr-Brown (TI) |
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DAC1220E 데이터시트(HTML) 2 Page - Burr-Brown (TI) |
2 / 14 page 2 ® DAC1220 SPECIFICATIONS All specifications TMIN to TMAX, AVDD = DVDD = +5V, fXIN = 2.5MHz, VREF = +2.5V, and 16-bit mode, unless otherwise noted. DAC1220E PARAMETER CONDITIONS MIN TYP MAX UNITS ACCURACY Monotonicity 16 Bits Monotonicity 20-Bit Mode 20 Bits Linearity Error ±1(1) LSB Unipolar Offset Error(2) VOUT = 20mV ±4 LSB Unipolar Offset Error Drift(3) 1 ppm/ °C Bipolar Zero Offset Error(2) VOUT = VREF ±1 LSB Bipolar Zero Offset Drift(3) 1 ppm/ °C Gain Error(2) ±10 LSB Gain Error Drift(3) 2 ppm/ °C Power Supply Rejection Ratio at DC, dB = –20log( ∆V OUT/∆VDD)60 dB ANALOG OUTPUT Output Voltage(4) 0 2 • VREF V Output Current 0.5 mA Capacitive Load 500 pF Short-Circuit Current ±20 mA Short-Circuit Duration GND or VDD Indefinite DYNAMIC PERFORMANCE Settling Time(5) To ±0.012% 1.8 2 ms 20-Bit Mode, to ±0.003% 15 ms Output Noise Voltage 0.1Hz to 10Hz 1 µVrms REFERENCE INPUT Input Voltage 2.25 2.5 2.75 V Input Impedance 100 k Ω DIGITAL INPUT/OUTPUT Logic Family TTL-Compatible CMOS Logic Levels (all except XIN) VIH 2.0 DVDD +0.3 V VIL –0.3 0.8 V VOH IOH = –0.8mA 3.6 V VOL IOL = 1.6mA 0.4 V Input-Leakage Current ±10 µA XIN Frequency Range (fXIN) 0.5 2.5 MHz Data Format User Programmable Offset Two’s Complement or Straight Binary POWER SUPPLY REQUIREMENTS Power Supply Voltage 4.75 5.25 V Supply Current Analog Current 360 µA Digital Current 140 µA Analog Current 20-Bit Mode 460 µA Digital Current 20-Bit Mode 140 µA Power Dissipation 2.5 3.5 mW 20-Bit Mode 3.0 mW Sleep Mode 0.45 mW TEMPERATURE RANGE Specified Performance –40 +85 °C NOTES: (1) Valid from AGND + 20mV to AVDD – 20mV, in the 16-bit mode. (2) Applies after calibration, in 16-bit mode. (3) Re-calibration can remove these errors. (4) Ideal output voltage, does not take into account gain and offset error. (5) Valid from AGND +20mV to AVDD –20mV. Outside of this range, settling time may be twice the value indicated. For 16-bit mode, C1 = 2.2nF, C2 = 0.22nF; for 20-bit mode, C1 = 10nF, C2 = 3.3nF. |
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