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DAC1221 датащи(PDF) 2 Page - Burr-Brown (TI) |
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DAC1221 датащи(HTML) 2 Page - Burr-Brown (TI) |
2 / 14 page 2 ® DAC1221 SPECIFICATIONS All specifications TMIN to TMAX, AVDD = DVDD = +3V, fXIN = 2.5MHz, VREF = +1.25V, C1 = 2.2nF, C2 = 150pF, C3 = 6.8nF, unless otherwise noted. DAC1221E PARAMETER CONDITIONS MIN TYP MAX UNITS ACCURACY Monotonicity 16 Bits Linearity Error(1) ±30 ppm of FSR Offset Error(2) VOUT = 20mV, CALPIN = 1(6) ±190 µV Offset Error Drift(3) 50 µV/°C Midscale Error(2) VOUT = VREF, CALPIN = 1(6) ±20 µV Midscale Error Drift(3) 50 µV/°C Gain Error(2) CALPIN = 1(6) 0.015 % Gain Error Drift(3) 3 ppm/ °C Power-Supply Rejection Ratio at DC, dB = –20log( ∆V OUT/∆VDD)57 dB ANALOG OUTPUT Output Voltage(4) 0 2 • VREF V Output Current(1) ±0.25 mA Capacitive Load 500 pF Short-Circuit Current ±10 mA Short-Circuit Duration GND or VDD Indefinite DYNAMIC PERFORMANCE Settling Time(1,5) To ±0.012% 1.8 2 ms Output-Noise Voltage 1Hz to 2kHz 45 µVrms REFERENCE INPUT Input Voltage 1.125 1.25 1.375 V Input Impedance 1M 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 2.4 V VOL IOL = 1.6mA 0.4 V Input-Leakage Current ±10 µA XIN Frequency Range (fXIN) 1.0 2.5 MHz Data Format User Programmable Offset Two’s Complement or Straight Binary POWER SUPPLY REQUIREMENTS Power-Supply Voltage 2.7 3.3 V Supply Current Analog Current 320 µA Digital Current 70 µA Power Dissipation Normal Mode 1.2 1.6 mW Sleep Mode 0.25 mW TEMPERATURE RANGE Specified Performance –40 +85 °C NOTES: (1) Valid from AGND + 20mV to 2 • VREF. (2) Applies after calibration. (3) Recalibration can remove these errors. (4) Ideal output voltage. (5) Using external low-pass filter with 2kHz corner frequency. (6) See Command Register for description of CALPIN. |
Аналогичный номер детали - DAC1221 |
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Аналогичное описание - DAC1221 |
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