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DAC7741 数据表(PDF) 4 Page - Texas Instruments |
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DAC7741 数据表(HTML) 4 Page - Texas Instruments |
4 / 23 page DAC7741 4 SBAS248B www.ti.com DAC7741YL DAC7741YC PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS ACCURACY Linearity Error (INL) ±2 ±3LSB TA = 25°C ±1 ±2LSB Differential Linearity Error (DNL) ±1 ±1LSB Monotonicity 16 16 Bits Offset Error ±0.1 ✻ % of FSR Offset Error Drift ±2 ✻ ppm/ °C Gain Error With Internal REF ±0.4 ±0.2 % of FSR With External REF ±0.25 ±0.1 % of FSR Gain Error Drift With Internal REF ±15 ±7 ppm/ °C PSRR (VCC or VSS) At Full-Scale 50 200 ✻✻ ppm/V ANALOG OUTPUT(1) Voltage Output(2) +11.4/–4.75(1) 0 to 10 ✻ V +11.4/–11.4(1) ±10 ✻ V +11.4/–6.4(1) ±5 ✻ V Output Current ±5 ✻ mA Output Impedance 0.1 ✻ Ω Maximum Load Capacitance 200 ✻ pF Short-Circuit Current ±15 ✻ mA Short-Circuit Duration AGND Indefinite ✻ REFERENCE Reference Output 9.96 10 10.04 9.975 ✻ 10.025 V REFOUT Impedance 400 ✻ Ω REFOUT Voltage Drift ±15 ±7 ppm/ °C REFOUT Voltage Adjustment(3) ±25 ✻ mV REFIN Input Range(4) 4.75 VCC – 1.4 ✻✻ V REFIN Input Current 10 ✻ nA REFADJ Input Range Absolute Max Value that 010 ✻✻ V can be applied is VCC REFADJ Input Impedance 50 ✻ k Ω VREF Output Current –2+2 ✻✻ mA VREF Impedance 1 ✻ Ω DYNAMIC PERFORMANCE Settling Time to ±0.003% 20V Output Step 3 5 ✻✻ µs RL = 5kΩ, CL = 200pF, with external REFOUT to REFIN filter(5) Digital Feedthrough 2 ✻ nV-s Output Noise Voltage at 10kHz 100 ✻ nV/ √Hz DIGITAL INPUT VIH |IH| < 10µA 0.7 • VDD ✻ V VIL |IL| < 10µA 0.3 • VDD ✻ V DIGITAL OUTPUT VOH IOH = –0.8mA 3.6 ✻ V VOL IOL = 1.6mA 0.4 ✻ V POWER SUPPLY VDD +4.00 +5.0 +5.25 +4.75 ✻✻ V VCC +11.4 +15.75 ✻✻ V VSS Bipolar Operation –15.75 –11.4 ✻✻ V Unipolar Operation –15.75 –4.75 ✻✻ V IDD 100 ✻ µA ICC Unloaded 4 6 ✻✻ mA ISS Unloaded –4 –2.5 ✻✻ mA Power No Load, Ext. Reference 85 ✻ mW No Load, Int. Reference 100 150 ✻✻ mW TEMPERATURE RANGE Specified Performance 0 70 –40 +85 °C ✻ Specifications same as grade to the left. NOTES: (1) With minimum VCC /VSS requirements, internal reference enabled. (2) Please refer to the “Theory of Operation” section for more information with respect to output voltage configurations. (3) See Figure 7 for gain and offset adjustment connection diagrams when using the internal reference. (4) The minimum value for REFIN must be equal to the greater of VSS +14V and +4.75V, where +4.75V is the minimum voltage allowed. (5) Reference low-pass filter values: 100k Ω, 1.0µF (See Figure 10). ELECTRICAL CHARACTERISTICS All specifications at TA = TMIN to TMAX, VCC = +15V, VSS = –15V, VDD = +5V, internal reference enabled, unless otherwise noted. |
类似零件编号 - DAC7741 |
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类似说明 - DAC7741 |
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