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AD7808BN 数据表(PDF) 2 Page - Analog Devices |
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AD7808BN 数据表(HTML) 2 Page - Analog Devices |
2 / 28 page AD7804/AD7805/AD7808/AD7809 REV. A –2– Parameter B Grade1 C Grade1 Units Comments STATIC PERFORMANCE MAIN DAC Resolution 10 10 Bits Relative Accuracy ±3 ±3 LSB max Gain Error ±3 ±3 % FSR max Bias Offset Error 2 –80/+40 –80/+40 mV max DAC Code = 0.5 Full Scale Zero-Scale Error 3 mV max DAC Code = 000H for Offset Binary Monotonicity 9 10 Bits and 200H for Twos Complement Coding Minimum Load Resistance 2 2 k Ω min SUB DAC Resolution 8 8 Bits Differential Nonlinearity ±0.125 ±0.125 LSB typ Refers to an LSB of the Main DAC ±0.5 ±0.5 LSB max OUTPUT CHARACTERISTICS Output Voltage Range3 VBIAS ± 15/16 × VBIAS VBIAS ± 15/16 × VBIAS V Twos Complement Coding VBIAS/16 to 31/16 × VBIAS VBIAS/16 to 31/16 × VBIAS V Offset Binary Coding Voltage Output Settling Time to 10 Bits 4 4 µs max Typically 1.5 µs Slew Rate 2.5 2.5 V/ µs typ Digital-to-Analog Glitch Impulse 1 1 nV-s typ 1 LSB Change Around the Major Carry Digital Feedthrough 0.5 0.5 nV-s typ Digital Crosstalk 0.5 0.5 nV-s typ Analog Crosstalk ±0.2 ±0.2 LSB typ DC Output Impedance 2 2 Ω typ Power Supply Rejection Ratio 0.002 0.002 %/% typ ∆V DD ± 10% DAC REFERENCE INPUTS REF IN Range 1.0 to VDD/2 1.0 to VDD/2 V min to V max REF IN Input Leakage ±1 ±1 µA max Typically ±1 nA DIGITAL INPUTS Input High Voltage, VIH @ VDD = 5 V 2.4 2.4 V min Input High Voltage, VIH @ VDD = 3.3 V 2.1 2.1 V min Input Low Voltage, VIL @ VDD = 5 V 0.8 0.8 V max Input Low Voltage, VIL @ VDD = 3.3 V 0.6 0.6 V max Input Leakage Current ±10 µA max Input Capacitance 10 10 pF max Input Coding Twos Comp/Binary Twos Comp/Binary REFERENCE OUTPUT REF OUT Output Voltage 1.23 1.23 V nom REF OUT Error ±8 ±8 % max REF OUT Temperature Coefficient –100 –100 ppm/ °C typ REF OUT Output Impedance 5 5 k Ω nom POWER REQUIREMENTS VDD (AVDD and DVDD) 3/5.5 3/5.5 V min to V max IDD (AIDD Plus DIDD) Excluding Load Currents Normal Mode 12 12 mA max VIH = VDD, VIL = DGND System Standby (SSTBY) Mode 250 250 µAV IH = VDD, VIL = DGND Power-Down ( PD) Mode @ +25 °C 0.8 0.8 µA max VIH = VDD, VIL = DGND TMIN–TMAX 1.5 1.5 µA max Power Dissipation Excluding Power Dissipated in Load Normal Mode 66 66 mW max System Standby (SSTBY) Mode 1.38 1.38 mW max Power-Down ( PD) Mode @ +25 °C 4.4 4.4 µW max TMIN–TMAX 8.25 8.25 µW max NOTES 1Temperature range is – 40 °C to +85°C. 2Can be minimized using the Sub DAC. 3V BIAS is the center of the output voltage swing and can be VDD/2, Internal Reference or REFIN as determined by MX1 and MX0 in the channel control register. Specifications subject to change without notice. (AVDD and DVDD = 3.3 V 10% to 5 V 10%; AGND = DGND = 0 V; Reference = Internal Reference; CL = 100 pF; RL = 2 k to GND. Sub DAC at Midscale. All specifications TMIN to TMAX unless otherwise noted.) AD7804/AD7805–SPECIFICATIONS –VBIAS 16 / +40 –VBIAS 16 / +40 |
类似零件编号 - AD7808BN |
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类似说明 - AD7808BN |
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