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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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DAC7642VF датащи(PDF) 3 Page - Texas Instruments |
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DAC7642VF датащи(HTML) 3 Page - Texas Instruments |
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3 / 25 page  DAC7642, DAC7643 3 SBAS233 www.ti.com DAC7642VF DAC7642VFB DAC7643VF DAC7643VFB PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS ACCURACY Linearity Error ±3 ±4 ±2 ±3 LSB Linearity Match ±4 ±2 LSB Differential Linearity Error ±2 ±3 ±1 ±2 LSB Monotonicity, TMIN to TMAX 14 15 Bits Bipolar Zero Error ±1 ±3 ✻✻ mV Bipolar Zero Error Drift 5 10 ✻✻ ppm/ °C Full-Scale Error ±1 ±3 ✻✻ mV Full-Scale Error Drift 5 10 ✻✻ ppm/ °C Bipolar Zero Matching Channel-to-Channel Matching ±1 ±3 ±1 ±3mV Full-Scale Matching Channel-to-Channel Matching ±1 ±3 ±1 ±3mV Power-Supply Rejection Ratio (PSRR) At Full-Scale 10 100 ✻✻ ppm/V ANALOG OUTPUT Voltage Output R L = 10kΩ VREFLVREFH ✻✻ V Output Current –1.25 +1.25 ✻✻ mA Maximum Load Capacitance No Oscillation 500 ✻ pF Short-Circuit Current –10, +30 ✻ mA Short-Circuit Duration GND, VCC or VSS Indefinite ✻ REFERENCE INPUT Ref High Input Voltage Range VREFL + 1.25 +2.5 ✻✻ V Ref Low Input Voltage Range –2.5 VREFH – 1.25 ✻✻ V Ref High Input Current 500 ✻ µA Ref Low Input Current –500 ✻ µA DYNAMIC PERFORMANCE Settling Time To ±0.003%, 5V Output Step 8 10 ✻✻ µs Channel-to-Channel Crosstalk See Figure 5 0.5 ✻ LSB Digital Feedthrough 2 ✻ nV-s Output Noise Voltage f = 10kHz 60 ✻ nV/ √Hz DAC Glitch 7FFFH to 8000H or 8000H to 7FFFH 40 ✻ nV-s DIGITAL INPUT VIH 0.7 • VCC ✻ V VIL 0.3 • VCC ✻ V IIH ±10 ✻ µA IIL ±10 ✻ µA DIGITAL OUTPUT VOH IOH = –0.8mA 3.6 4.5 ✻✻ V VOL IOL = 1.2mA 0.3 0.4 ✻✻ V POWER SUPPLY VCC +4.75 +5.0 +5.25 ✻✻✻ V VSS –5.25 –5.0 –4.75 ✻✻✻ V ICC 0.7 1.1 ✻✻ mA ISS –1.2 –0.8 ✻✻ mA Power 7.5 11.5 ✻✻ mW TEMPERATURE RANGE Specified Performance –40 +85 ✻✻ °C ✻ Specifications same as DAC7642VF and DAC7643VF. ELECTRICAL CHARACTERISTICS (Dual Supply) At TA = TMIN to TMAX, VCC = +5V, VSS = –5V, VREFH = +2.5V, and VREFL = –2.5V, unless otherwise noted. |
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